50 lines
707 B
PHP
50 lines
707 B
PHP
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comment "subroutine prologue"
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.macro gdbasm_enter
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ldx _.frame
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pshx
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sts _.frame
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.endm
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comment "subroutine epilogue"
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.macro gdbasm_leave
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pulx
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stx _.frame
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rts
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.endm
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.macro gdbasm_call subr
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jsr \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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clra
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clrb
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wai
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.endm
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comment "crt0 startup"
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.macro gdbasm_startup
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.sect .data
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.globl _.frame
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_.frame: .word 0
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.previous
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lds #0x2000
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clr _.frame
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clr _.frame+1
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.endm
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comment "Declare a data variable"
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.macro gdbasm_datavar name value
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.data
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\name:
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.long \value
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.endm
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