29 lines
731 B
ArmAsm
29 lines
731 B
ArmAsm
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/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is part of the mingw-w64 runtime package.
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* No warranty is given; refer to the file DISCLAIMER.PD within this package.
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*/
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#include <_mingw_mac.h>
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.file "trunc.S"
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.text
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.p2align 4,,15
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.globl __MINGW_USYMBOL(trunc)
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.def __MINGW_USYMBOL(trunc); .scl 2; .type 32; .endef
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__MINGW_USYMBOL(trunc):
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vmov r2, r3, d0
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lsr r3, r3, #20
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bic r3, r3, #0x800
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movw r2, #0x7ff
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cmp r2, r3 /* Check for INF/NAN, just return the input in those cases */
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it eq
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bxeq lr
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vmrs r1, fpscr
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orr r0, r1, #0x00c00000 /* Round towards Zero */
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vmsr fpscr, r0
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vcvtr.s32.f64 s0, d0
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vcvt.f64.s32 d0, s0
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vmsr fpscr, r1
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bx lr
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