Mercurial > pub > dyncall > dyncall
view dyncall/dyncall_call_mips_o32.S @ 595:82aa83f09264
- test/dynload_plain build fixes:
* erroneously used zero based loop in awk which is one based
* missed embedded makefile changes
author | Tassilo Philipp |
---|---|
date | Tue, 20 Sep 2022 10:29:23 +0200 |
parents | 72b450cc3be8 |
children |
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/* Package: dyncall Library: dyncall File: dyncall/dyncall_call_mips_o32.S Description: mips "o32" abi call kernel implementation in GNU Assembler License: Copyright (c) 2007-2018 Daniel Adler <dadler@uni-goettingen.de>, Tassilo Philipp <tphilipp@potion-studios.com> Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* $4 target function */ /* $5 register data */ /* $6 stack size (guaranteed to be >= 16b and multiple of 8b) */ /* $7 stack data */ .section .mdebug.abi32 .previous .abicalls .text .align 2 .globl dcCall_mips_o32 .ent dcCall_mips_o32 .type dcCall_mips_o32, @function dcCall_mips_o32: .frame $fp,40,$31 /* vars=8, regs=2/0, args=16, gp=8 */ .mask 0xc0000000,-4 .fmask 0x00000000,0 .set noreorder addiu $sp, $sp, -8 sw $31, 4($sp) /* save link register */ sw $fp, 0($sp) /* save frame pointer */ nop move $fp, $sp /* frame pointer = sp */ sub $sp, $sp, $6 /* increment stack */ /* copy stack data */ /* $12 source pointer (parameter stack data) */ /* $14 destination (stack pointer) */ /* $6 byte count */ move $12, $7 move $14, $sp .next: beq $6, $0, .skip nop lw $2, 0($12) nop sw $2, 0($14) addiu $12, $12, 4 addiu $14, $14, 4 addiu $6, $6, -4 j .next nop .skip: #if defined(DC__ABI_HARDFLOAT) /* load two double-precision floating-point argument registers ($f12, $f14) - not for softfloat */ l.d $f12, 0($5) l.d $f14, 8($5) #endif /* prepare call */ move $12, $7 /* $12 stack data */ move $25, $4 /* $25 target function */ /* load first four integer arguments ($4-$7) */ lw $4, 0($12) lw $5, 4($12) lw $6, 8($12) lw $7, 12($12) /* call target function */ jalr $25 nop move $sp, $fp /* restore stack pointer */ nop lw $31, 4($sp) /* restore return address */ lw $fp, 0($sp) /* restore frame pointer */ addiu $sp, $sp, 8 /* end stack frame */ j $31 /* return */ nop .set reorder .end dcCall_mips_o32 .ident "handwritten"