libgambatte: further lcd enable timing re work

More detailed timing tests uncovered some differences w.r.t. the timing
of the very first line after LCD display enable (an additional 2 cycles
of delay before "mode 3" begins).

("Double speed" testing with some related simplifications is in progress
-- which should, finally, get rid of some of the odd "ds" offsets
[emphasis has been on implementing observed behaviour].)

libgambatte/src/video.cpp

@@ -64,6 +64,8 @@ unsigned long gbcToUyvy(unsigned const bgr15) {
 #endif
 }*/
 
+// TODO: simplify cycle offsets.
+
 long m1IrqFrameCycle(bool ds) { return 1l * lcd_vres * lcd_cycles_per_line - 2 + 2 * ds; }
 int m2IrqLineCycle(bool ds) { return lcd_cycles_per_line - 4 + 2 * ds; }
 int m2IrqLineCycleLy0(bool ds) { return lcd_cycles_per_line - 2 + 2 * ds; }
@@ -372,6 +374,7 @@ bool LCD::vramAccessible(unsigned long const cc) {
 
 	return !(ppu_.lcdc() & lcdc_en)
 	    || ppu_.lyCounter().ly() >= lcd_vres
+	    || ppu_.inactivePeriodAfterDisplayEnable(cc + 1 - ppu_.cgb() + isDoubleSpeed())
 	    || ppu_.lyCounter().lineCycles(cc) < 80
 	    || cc + isDoubleSpeed() - ppu_.cgb() + 2 >= m0TimeOfCurrentLine(cc);
 }
@@ -382,6 +385,7 @@ bool LCD::cgbpAccessible(unsigned long const cc) {
 
 	return !(ppu_.lcdc() & lcdc_en)
 	    || ppu_.lyCounter().ly() >= lcd_vres
+	    || ppu_.inactivePeriodAfterDisplayEnable(cc)
 	    || ppu_.lyCounter().lineCycles(cc) < 80u + isDoubleSpeed()
 	    || cc >= m0TimeOfCurrentLine(cc) + 3 - isDoubleSpeed();
 }
@@ -401,7 +405,7 @@ void LCD::doCgbSpColorChange(unsigned index, unsigned data, unsigned long cc) {
 }
 
 bool LCD::oamReadable(unsigned long const cc) {
-	if (!(ppu_.lcdc() & lcdc_en) || ppu_.inactivePeriodAfterDisplayEnable(cc))
+	if (!(ppu_.lcdc() & lcdc_en) || ppu_.inactivePeriodAfterDisplayEnable(cc + 4))
 		return true;
 
 	if (cc >= eventTimes_.nextEventTime())
@@ -415,7 +419,7 @@ bool LCD::oamReadable(unsigned long const cc) {
 }
 
 bool LCD::oamWritable(unsigned long const cc) {
-	if (!(ppu_.lcdc() & lcdc_en) || ppu_.inactivePeriodAfterDisplayEnable(cc))
+	if (!(ppu_.lcdc() & lcdc_en) || ppu_.inactivePeriodAfterDisplayEnable(cc + 4 + isDoubleSpeed()))
 		return true;
 
 	if (cc >= eventTimes_.nextEventTime())

libgambatte/src/video/ppu.cpp

@@ -1806,7 +1806,7 @@ void PPU::setLcdc(unsigned const lcdc, unsigned long const cc) {
 		p_.weMaster = (lcdc & lcdc_we) && 0 == p_.wy;
 		p_.winDrawState = 0;
 		p_.nextCallPtr = &M3Start::f0_;
-		p_.cycles = -static_cast<int>(m3StartLineCycle(p_.cgb) + m2_ds_offset * p_.lyCounter.isDoubleSpeed());
+		p_.cycles = -static_cast<int>(m3StartLineCycle(p_.cgb) + 2 + p_.lyCounter.isDoubleSpeed());
 	} else if ((p_.lcdc ^ lcdc) & lcdc_we) {
 		if (!(lcdc & lcdc_we)) {
 			if (p_.winDrawState == win_draw_started || p_.xpos == xpos_end)

libgambatte/src/video/sprite_mapper.cpp

@@ -131,7 +131,7 @@ void SpriteMapper::OamReader::loadState(SaveState const &ss, unsigned char const
 void SpriteMapper::OamReader::enableDisplay(unsigned long cc) {
 	std::fill_n(buf_, sizeof buf_ / sizeof *buf_, 0);
 	std::fill_n(lsbuf_, sizeof lsbuf_ / sizeof *lsbuf_, false);
-	lu_ = cc + (2 * lcd_num_oam_entries << lyCounter_.isDoubleSpeed());
+	lu_ = cc + (2 * lcd_num_oam_entries << lyCounter_.isDoubleSpeed()) + 1;
 	lastChange_ = 2 * lcd_num_oam_entries;
 }
 

test/hwtests/enable_display/frame0_ly_count_1_dmg08_cgb04c_out99.asm

@@ -0,0 +1,123 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 00
+
+.text@1ca
+ltest_ly:
+	ldff a, (44)
+	cmp a, b
+	jrnz lprint_b
+	inc b
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_ly
+lprint_b:
+	ld a, b
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_ly_count_2_dmg08_cgb04c_out9A.asm

@@ -0,0 +1,123 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 01
+
+.text@1cb
+ltest_ly:
+	ldff a, (44)
+	cmp a, b
+	jrnz lprint_b
+	inc b
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_ly
+lprint_b:
+	ld a, b
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m0irq_count_scx2_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,138 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 02
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@19a
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+
+.text@209
+ltest_if:
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m0irq_count_scx2_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,138 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 02
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@19b
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+
+.text@20a
+ltest_if:
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m0irq_count_scx3_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,138 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@19a
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+
+.text@20a
+ltest_if:
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m0irq_count_scx3_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,138 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@19b
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+
+.text@20b
+ltest_if:
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m2stat_count_1_dmg08_cgb04c_out91.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@1cb
+ltest_stat:
+	ldff a, (41)
+	cmp a, 80
+	jrnz lprint_ly
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_stat
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m2stat_count_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@1cc
+ltest_stat:
+	ldff a, (41)
+	cmp a, 82
+	jrnz lprint_ly
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_stat
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m3stat_count_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,126 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@16d
+	ldff a, (41)
+	cmp a, 84
+	jrnz lprint_ly
+
+.text@1de
+ltest_stat:
+	ldff a, (41)
+	cmp a, 82
+	jrnz lprint_ly
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_stat
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame0_m3stat_count_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,126 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@16e
+	ldff a, (41)
+	cmp a, 87
+	jrnz lprint_ly
+
+.text@1df
+ltest_stat:
+	ldff a, (41)
+	cmp a, 83
+	jrnz lprint_ly
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_stat
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_ly_count_1_dmg08_cgb04c_out99.asm

@@ -0,0 +1,142 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 98
+	call lwait_b_ly_cycles
+	ld b, 99
+
+.text@1c5
+	ldff a, (44)
+	cmp a, b
+	jpnz lprint_a
+	ld b, 00
+
+.text@2a7
+ltest_ly:
+	ldff a, (44)
+	cmp a, b
+	jrnz lprint_b
+	inc b
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_ly
+lprint_b:
+	ld a, b
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_ly_count_2_dmg08_cgb04c_out9A.asm

@@ -0,0 +1,142 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 98
+	call lwait_b_ly_cycles
+	ld b, 00
+
+.text@1c6
+	ldff a, (44)
+	cmp a, b
+	jpnz lprint_b
+	inc b
+
+.text@2a8
+ltest_ly:
+	ldff a, (44)
+	cmp a, b
+	jrnz lprint_b
+	inc b
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_ly
+lprint_b:
+	ld a, b
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_m0irq_count_scx2_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,144 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 02
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 9a
+	call lwait_b_ly_cycles
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@193
+ltest_if:
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_m0irq_count_scx2_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,144 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 02
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 9a
+	call lwait_b_ly_cycles
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@194
+ltest_if:
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_m0irq_count_scx3_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,144 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 9a
+	call lwait_b_ly_cycles
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@194
+ltest_if:
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_m0irq_count_scx3_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,144 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 9a
+	call lwait_b_ly_cycles
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@195
+ltest_if:
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_m3stat_count_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,139 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 9a
+	call lwait_b_ly_cycles
+
+.text@167
+	ldff a, (41)
+	cmp a, 86
+	jrnz lprint_ly
+
+.text@1d8
+ltest_stat:
+	ldff a, (41)
+	cmp a, 82
+	jrnz lprint_ly
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_stat
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame1_m3stat_count_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,139 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld b, 9a
+	call lwait_b_ly_cycles
+
+.text@168
+	ldff a, (41)
+	cmp a, 87
+	jrnz lprint_ly
+
+.text@1d9
+ltest_stat:
+	ldff a, (41)
+	cmp a, 83
+	jrnz lprint_ly
+	ld c, 19
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_stat
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame2_m0irq_count_scx2_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,148 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 02
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld e, 02
+lwait_e_frames:
+	ld b, 9a
+	call lwait_b_ly_cycles
+	dec e
+	jrnz lwait_e_frames
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@184
+ltest_if:
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame2_m0irq_count_scx2_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,148 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 02
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld e, 02
+lwait_e_frames:
+	ld b, 9a
+	call lwait_b_ly_cycles
+	dec e
+	jrnz lwait_e_frames
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@185
+ltest_if:
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame2_m0irq_count_scx3_1_dmg08_cgb04c_out90.asm

@@ -0,0 +1,148 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld e, 02
+lwait_e_frames:
+	ld b, 9a
+	call lwait_b_ly_cycles
+	dec e
+	jrnz lwait_e_frames
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@185
+ltest_if:
+	ldff a, (0f)
+	cmp a, e0
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/frame2_m0irq_count_scx3_2_dmg08_cgb04c_out90.asm

@@ -0,0 +1,148 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld e, 02
+lwait_e_frames:
+	ld b, 9a
+	call lwait_b_ly_cycles
+	dec e
+	jrnz lwait_e_frames
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@186
+ltest_if:
+	ldff a, (0f)
+	cmp a, e2
+	jrnz lprint_ly
+	xor a, a
+	ldff(0f), a
+	ld c, 18
+lwait_nly:
+	dec c
+	jrnz lwait_nly
+	nop
+	nop
+	nop
+	jr ltest_if
+lprint_ly:
+	ldff a, (44)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.text@7600
+lwait_b_ly_cycles:
+	ld c, 1b
+lwait_b_ly_cycles_wait_nly:
+	dec c
+	jrnz lwait_b_ly_cycles_wait_nly
+	nop
+	dec b
+	jrnz lwait_b_ly_cycles
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpr_1_cgb04c_out55.asm

@@ -0,0 +1,112 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@175
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpr_2_cgb04c_outFF.asm

@@ -0,0 +1,112 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@176
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpr_ds_1_cgb04c_out55.asm

@@ -0,0 +1,119 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@195
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpr_ds_2_cgb04c_outFF.asm

@@ -0,0 +1,119 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@196
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpw_1_cgb04c_outAA.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@173
+	ld a, aa
+	ldff(69), a
+
+.text@1b0
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpw_2_cgb04c_out55.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@174
+	ld a, aa
+	ldff(69), a
+
+.text@1b0
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpw_ds_1_cgb04c_outAA.asm

@@ -0,0 +1,123 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@193
+	ld a, aa
+	ldff(69), a
+
+.text@200
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_cgbpw_ds_2_cgb04c_out55.asm

@@ -0,0 +1,123 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@194
+	ld a, aa
+	ldff(69), a
+
+.text@200
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_oamw_1_dmg08_cgb04c_outAA.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(fe00), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@16f
+	ld a, aa
+	ld(fe00), a
+
+.text@1b0
+	ld a, (fe00)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_oamw_2_dmg08_cgb04c_out55.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(fe00), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@170
+	ld a, aa
+	ld(fe00), a
+
+.text@1b0
+	ld a, (fe00)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_oamw_ds_1_cgb04c_outAA.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(fe00), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@18e
+	ld a, aa
+	ld(fe00), a
+
+.text@200
+	ld a, (fe00)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_oamw_ds_2_cgb04c_out55.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(fe00), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@18f
+	ld a, aa
+	ld(fe00), a
+
+.text@200
+	ld a, (fe00)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_scx7_m3stat_scx0_1_dmg08_cgb04c_out87.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 00
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@170
+	ld a, 07
+	ldff(43), a
+
+.text@19c
+	ldff a, (41)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_scx7_m3stat_scx0_2_dmg08_out87_cgb04c_out84.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 00
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@171
+	ld a, 07
+	ldff(43), a
+
+.text@19c
+	ldff a, (41)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_scx7_m3stat_scx0_3_dmg08_cgb04c_out84.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 00
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@172
+	ld a, 07
+	ldff(43), a
+
+.text@19c
+	ldff a, (41)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_scx7_m3stat_scx1_1_dmg08_cgb04c_out87.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 01
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@171
+	ld a, 07
+	ldff(43), a
+
+.text@19c
+	ldff a, (41)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_scx7_m3stat_scx1_2_dmg08_cgb04c_out84.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 01
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@172
+	ld a, 07
+	ldff(43), a
+
+.text@19c
+	ldff a, (41)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_scx7_m3stat_scx3_1_dmg08_cgb04c_out87.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@171
+	ld a, 07
+	ldff(43), a
+
+.text@19d
+	ldff a, (41)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_scx7_m3stat_scx3_2_dmg08_cgb04c_out84.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 03
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@172
+	ld a, 07
+	ldff(43), a
+
+.text@19d
+	ldff a, (41)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramr_1_dmg08_cgb04c_out55.asm

@@ -0,0 +1,110 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@171
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramr_2_dmg08_outFF_cgb04c_out55.asm

@@ -0,0 +1,110 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@172
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramr_3_dmg08_cgb04c_outFF.asm

@@ -0,0 +1,110 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@173
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramr_ds_1_cgb04c_out55.asm

@@ -0,0 +1,117 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@191
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramr_ds_2_cgb04c_outFF.asm

@@ -0,0 +1,117 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@192
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramw_1_dmg08_cgb04c_outAA.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@16f
+	ld a, aa
+	ld(8000), a
+
+.text@1b0
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramw_2_dmg08_out55_cgb04c_outAA.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@170
+	ld a, aa
+	ld(8000), a
+
+.text@1b0
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_late_vramw_3_dmg08_cgb04c_out55.asm

@@ -0,0 +1,114 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	ld a, 55
+	ld(8000), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@171
+	ld a, aa
+	ld(8000), a
+
+.text@1b0
+	ld a, (8000)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx0_1_dmg08_cgb04c_outE0.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 00
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@199
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx0_2_dmg08_cgb04c_outE2.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 00
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@19a
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx0_ds_1_cgb04c_outE0.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld a, 00
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@1e5
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx0_ds_2_cgb04c_outE2.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld a, 00
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@1e6
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx1_1_dmg08_cgb04c_outE0.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 01
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@19a
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx1_2_dmg08_cgb04c_outE2.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	80
+
+.text@150
+lbegin:
+	ld a, 01
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	ld a, ff
+	ldff(45), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@19b
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx1_ds_1_cgb04c_outE0.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld a, 01
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@1e6
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly0_m0irq_scx1_ds_2_cgb04c_outE2.asm

@@ -0,0 +1,121 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld a, 30
+	ldff(00), a
+	xor a, a
+	ldff(ff), a
+	inc a
+	ldff(4d), a
+	stop, 00
+	ld a, 01
+	ldff(43), a
+	ld b, 91
+	call lwaitly_b
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+	xor a, a
+	ldff(0f), a
+	ld a, 08
+	ldff(41), a
+
+.text@1e7
+	ldff a, (0f)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly1_late_cgbpw_1_cgb04c_outAA.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@1e4
+	ld a, aa
+	ldff(69), a
+
+.text@220
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+

test/hwtests/enable_display/ly1_late_cgbpw_2_cgb04c_out55.asm

@@ -0,0 +1,116 @@
+.size 8000
+
+.text@100
+	jp lbegin
+
+.data@143
+	c0
+
+.text@150
+lbegin:
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(68), a
+	ld a, 55
+	ldff(69), a
+	ld a, 11
+	ldff(40), a
+	ld a, 91
+	ldff(40), a
+
+.text@1e5
+	ld a, aa
+	ldff(69), a
+
+.text@220
+	ldff a, (69)
+	jp lprint_a
+
+.text@7000
+lprint_a:
+	push af
+	ld b, 91
+	call lwaitly_b
+	xor a, a
+	ldff(40), a
+	ld bc, 7a00
+	ld hl, 8000
+	ld d, 00
+lprint_copytiles:
+	ld a, (bc)
+	inc bc
+	ld(hl++), a
+	dec d
+	jrnz lprint_copytiles
+	pop af
+	ld b, a
+	swap a
+	and a, 0f
+	ld(9800), a
+	ld a, b
+	and a, 0f
+	ld(9801), a
+	ld a, c0
+	ldff(47), a
+	ld a, 80
+	ldff(68), a
+	ld a, ff
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	ldff(69), a
+	xor a, a
+	ldff(69), a
+	ldff(69), a
+	ldff(43), a
+	ld a, 91
+	ldff(40), a
+lprint_limbo:
+	jr lprint_limbo
+
+.text@7400
+lwaitly_b:
+	ld c, 44
+lwaitly_b_loop:
+	ldff a, (c)
+	cmp a, b
+	jrnz lwaitly_b_loop
+	ret
+
+.data@7a00
+	00 00 7f 7f 41 41 41 41
+	41 41 41 41 41 41 7f 7f
+	00 00 08 08 08 08 08 08
+	08 08 08 08 08 08 08 08
+	00 00 7f 7f 01 01 01 01
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 01 01 01 01
+	3f 3f 01 01 01 01 7f 7f
+	00 00 41 41 41 41 41 41
+	7f 7f 01 01 01 01 01 01
+	00 00 7f 7f 40 40 40 40
+	7e 7e 01 01 01 01 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 41 41 41 41 7f 7f
+	00 00 7f 7f 01 01 02 02
+	04 04 08 08 10 10 10 10
+	00 00 3e 3e 41 41 41 41
+	3e 3e 41 41 41 41 3e 3e
+	00 00 7f 7f 41 41 41 41
+	7f 7f 01 01 01 01 7f 7f
+	00 00 08 08 22 22 41 41
+	7f 7f 41 41 41 41 41 41
+	00 00 7e 7e 41 41 41 41
+	7e 7e 41 41 41 41 7e 7e
+	00 00 3e 3e 41 41 40 40
+	40 40 40 40 41 41 3e 3e
+	00 00 7e 7e 41 41 41 41
+	41 41 41 41 41 41 7e 7e
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 7f 7f
+	00 00 7f 7f 40 40 40 40
+	7f 7f 40 40 40 40 40 40
+