jato/boehmgc/mips_sgi_mach_dep.s at master · jatovm/jato

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#include <sys/regdef.h>

#include <sys/asm.h>

/* This file must be preprocessed. But the SGI assembler always does */

/* that. Furthermore, a generic preprocessor won't do, since some of */

/* the SGI-supplied include files rely on behavior of the MIPS */

/* assembler. Hence we treat and name this file as though it required */

/* no preprocessing. */

# define call_push(x) move $4,x; jal GC_push_one

.option pic2

.text

/* Mark from machine registers that are saved by C compiler */

# define FRAMESZ 32

# define RAOFF FRAMESZ-SZREG

# define GPOFF FRAMESZ-(2*SZREG)

NESTED(GC_push_regs, FRAMESZ, ra)

.mask 0x80000000,-SZREG # inform debugger of saved ra loc

move t0,gp

SETUP_GPX(t8)

PTR_SUBU sp,FRAMESZ

# ifdef SETUP_GP64

SETUP_GP64(GPOFF, GC_push_regs)

# endif

SAVE_GP(GPOFF)

REG_S ra,RAOFF(sp)

# if (_MIPS_SIM == _MIPS_SIM_ABI32)

call_push($2)

call_push($3)

# endif

call_push($16)

call_push($17)

call_push($18)

call_push($19)

call_push($20)

call_push($21)

call_push($22)

call_push($23)

call_push($30)

REG_L ra,RAOFF(sp)

# ifdef RESTORE_GP64

RESTORE_GP64

# endif

PTR_ADDU sp,FRAMESZ

j ra

.end GC_push_regs

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