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35 lines
482 B
PHP
35 lines
482 B
PHP
comment "subroutine prologue"
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.macro gdbasm_enter
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push fp -> push lr
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addi sp,#-4 -> mv fp,sp
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.endm
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comment "subroutine epilogue"
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.macro gdbasm_leave
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addi sp,#4 -> pop lr
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pop fp -> jmp lr
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.endm
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.macro gdbasm_call subr
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bl \subr
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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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ldi r0,#1 -> ldi r1,#0
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ldi r2,#0 -> ldi r3,#0
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trap #0 -> nop
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.endm
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comment "crt0 startup"
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.macro gdbasm_startup
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ldi fp,#0
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.endm
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