comment "subroutine prologue"
.macro gdbasm_enter
ldx _.frame
pshx
sts _.frame
.endm
comment "subroutine epilogue"
.macro gdbasm_leave
pulx
stx _.frame
rts
.endm
.macro gdbasm_call subr
jsr \subr
.endm
.macro gdbasm_several_nops
nop
nop
nop
nop
.endm
comment "exit (0)"
.macro gdbasm_exit0
clra
clrb
wai
.endm
comment "crt0 startup"
.macro gdbasm_startup
.sect .data
.globl _.frame
_.frame: .word 0
.previous
lds #0x2000
clr _.frame
clr _.frame+1
.endm
comment "Declare a data variable"
.purgem gdbasm_datavar
.macro gdbasm_datavar name value
.data
\name:
.long \value
.endm