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Last change
on this file was 132, checked in by cinc, 19 years ago |
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Boehm-Demers-Weiser garbage collector. Single-threaded for OS/2.
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File size:
1.2 KB
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| 1 | #include <sys/regdef.h>
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| 2 | #include <sys/asm.h>
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| 3 | /* This file must be preprocessed. But the SGI assembler always does */
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| 4 | /* that. Furthermore, a generic preprocessor won't do, since some of */
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| 5 | /* the SGI-supplied include files rely on behavior of the MIPS */
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| 6 | /* assembler. Hence we treat and name this file as though it required */
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| 7 | /* no preprocessing. */
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| 8 |
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| 9 | # define call_push(x) move $4,x; jal GC_push_one
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| 10 |
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| 11 | .option pic2
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| 12 | .text
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| 13 | /* Mark from machine registers that are saved by C compiler */
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| 14 | # define FRAMESZ 32
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| 15 | # define RAOFF FRAMESZ-SZREG
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| 16 | # define GPOFF FRAMESZ-(2*SZREG)
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| 17 | NESTED(GC_push_regs, FRAMESZ, ra)
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| 18 | .mask 0x80000000,-SZREG # inform debugger of saved ra loc
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| 19 | move t0,gp
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| 20 | SETUP_GPX(t8)
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| 21 | PTR_SUBU sp,FRAMESZ
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| 22 | # ifdef SETUP_GP64
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| 23 | SETUP_GP64(GPOFF, GC_push_regs)
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| 24 | # endif
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| 25 | SAVE_GP(GPOFF)
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| 26 | REG_S ra,RAOFF(sp)
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| 27 | # if (_MIPS_SIM == _MIPS_SIM_ABI32)
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| 28 | call_push($2)
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| 29 | call_push($3)
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| 30 | # endif
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| 31 | call_push($16)
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| 32 | call_push($17)
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| 33 | call_push($18)
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| 34 | call_push($19)
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| 35 | call_push($20)
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| 36 | call_push($21)
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| 37 | call_push($22)
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| 38 | call_push($23)
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| 39 | call_push($30)
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| 40 | REG_L ra,RAOFF(sp)
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| 41 | # ifdef RESTORE_GP64
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| 42 | RESTORE_GP64
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| 43 | # endif
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| 44 | PTR_ADDU sp,FRAMESZ
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| 45 | j ra
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| 46 | .end GC_push_regs
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