60 lines
789 B
Z80 Assembly
60 lines
789 B
Z80 Assembly
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;--------------------------------------------------------------------------
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; mycrt0.s - Generic crt0.s for a Z80
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;
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; Copyright (C) 2017, Paolo Iocco
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;
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;--------------------------------------------------------------------------
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.module crt0
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.globl _main
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.area _HEADER (ABS)
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;; Reset vector
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.org 0
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jp init
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.org 0x08
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reti
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.org 0x10
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reti
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.org 0x18
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reti
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.org 0x20
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reti
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.org 0x28
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reti
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.org 0x30
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reti
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.org 0x38
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reti
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.org 0x100
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init:
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;; Set stack pointer directly above top of memory.
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ld sp,#0x3fff
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call _main
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jp exit
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;; Ordering of segments for the linker.
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.area _HOME
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.area _CODE
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.area _INITIALIZER
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.area _GSINIT
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.area _GSFINAL
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.area _DATA
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.area _INITIALIZED
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.area _BSEG
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.area _BSS
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.area _HEAP
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.area _CODE
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exit:
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halt
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jr exit
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; ret
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