153 lines
3.5 KiB
ArmAsm
153 lines
3.5 KiB
ArmAsm
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#*********************************************************************
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#* *
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#* Objective Caml *
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#* *
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#* Xavier Leroy, projet Cristal, INRIA Rocquencourt *
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#* *
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#* Copyright 1996 Institut National de Recherche en Informatique et *
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#* Automatique. Distributed only by permission. *
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#* *
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#*********************************************************************
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# $Id$
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.csect .text[PR]
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.globl .call_gen_code
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.call_gen_code:
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# Save return address
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mflr 0
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stw 0, 8(1)
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# Save all callee-save registers
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stw 13,-76(1)
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stw 14,-72(1)
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stw 15,-68(1)
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stw 16,-64(1)
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stw 17,-60(1)
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stw 18,-56(1)
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stw 19,-52(1)
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stw 20,-48(1)
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stw 21,-44(1)
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stw 22,-40(1)
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stw 23,-36(1)
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stw 24,-32(1)
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stw 25,-28(1)
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stw 26,-24(1)
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stw 27,-20(1)
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stw 28,-16(1)
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stw 29,-12(1)
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stw 30,-8(1)
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stw 31,-4(1)
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stfd 14, -224(1)
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stfd 15, -216(1)
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stfd 16, -208(1)
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stfd 17, -200(1)
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stfd 18, -192(1)
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stfd 19, -184(1)
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stfd 20, -176(1)
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stfd 21, -168(1)
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stfd 22, -160(1)
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stfd 23, -152(1)
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stfd 24, -144(1)
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stfd 25, -136(1)
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stfd 26, -128(1)
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stfd 27, -120(1)
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stfd 28, -112(1)
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stfd 29, -104(1)
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stfd 30, -96(1)
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stfd 31, -88(1)
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# Allocate and link stack frame
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stwu 1, -280(1)
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# Save global pointer
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stw 2, 20(1)
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# Load code to call
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lwz 0, 0(3)
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lwz 2, 4(3)
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mtlr 0
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# Shuffle arguments
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mr 3, 4
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mr 4, 5
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mr 5, 6
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mr 6, 7
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# Call the function
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blrl
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# Restore global pointer
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lwz 2, 20(1)
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# Deallocate stack frame
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addic 1, 1, 280
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# Restore callee-save registers
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lwz 13,-76(1)
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lwz 14,-72(1)
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lwz 15,-68(1)
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lwz 16,-64(1)
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lwz 17,-60(1)
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lwz 18,-56(1)
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lwz 19,-52(1)
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lwz 20,-48(1)
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lwz 21,-44(1)
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lwz 22,-40(1)
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lwz 23,-36(1)
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lwz 24,-32(1)
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lwz 25,-28(1)
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lwz 26,-24(1)
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lwz 27,-20(1)
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lwz 28,-16(1)
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lwz 29,-12(1)
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lwz 30,-8(1)
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lwz 31,-4(1)
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lfd 14, -224(1)
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lfd 15, -216(1)
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lfd 16, -208(1)
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lfd 17, -200(1)
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lfd 18, -192(1)
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lfd 19, -184(1)
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lfd 20, -176(1)
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lfd 21, -168(1)
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lfd 22, -160(1)
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lfd 23, -152(1)
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lfd 24, -144(1)
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lfd 25, -136(1)
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lfd 26, -128(1)
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lfd 27, -120(1)
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lfd 28, -112(1)
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lfd 29, -104(1)
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lfd 30, -96(1)
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lfd 31, -88(1)
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# Reload return address
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lwz 0, 8(1)
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mtlr 0
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# Return
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blr
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.globl .caml_c_call
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.caml_c_call:
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# Preserve RTOC and return address in callee-save registers
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# The C function will preserve them, and the Caml code does not
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# expect them to be preserved
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# Return address is in 25, RTOC is in 26
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mflr 25
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mr 26, 2
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# Call desired function (descriptor in r11)
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lwz 0, 0(11)
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lwz 2, 4(11)
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mtlr 0
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blrl
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# Restore return address and RTOC
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mtlr 25
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mr 2, 26
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# Return to caller
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blr
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# Function closures
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.globl call_gen_code
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.csect call_gen_code[DS]
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call_gen_code:
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.long .call_gen_code, TOC[tc0], 0
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.globl caml_c_call
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.csect caml_c_call[DS]
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caml_c_call:
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.long .caml_c_call, TOC[tc0], 0
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