42 lines
556 B
PHP
42 lines
556 B
PHP
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comment "subroutine prologue"
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.macro gdbasm_enter
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addiu %29, %29, 0xfffc
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sw %31,0(%29)
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.endm
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comment "subroutine epilogue"
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.macro gdbasm_leave
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lw %31,0(%29)
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addiu %29, %29, 4
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jr %31
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nop
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.endm
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.macro gdbasm_call subr
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jal \subr
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nop
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.endm
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.macro gdbasm_several_nops
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nop
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nop
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nop
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nop
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.endm
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comment "exit (0)"
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.macro gdbasm_exit0
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ori %4, %0, 1 # SYS_exit
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ori %5, %0, 0 # normal exit code
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ori %6, %0, 0
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ori %7, %0, 0
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syscall
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.endm
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comment "crt0 startup"
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.macro gdbasm_startup
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andi %0, %0, 0
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addiu %29, %0, 0xffc
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.endm
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