head	1.1;
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	rel_1_0:1.1
	restruc2:1.1.0.4
	restruc1:1.1.0.2;
locks; strict;
comment	@;; @;


1.1
date	2004.10.18.21.54.32;	author ghutchis;	state Exp;
branches;
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desc
@@


1.1
log
@Added "bintr" basic interrupt test, which tests Z80 interrupt mode 1.
@
text
@	;; Generic crt0.s for a Z80
        .module bintr_crt0
       	.globl	_main
        .globl  _isr

	.area _HEADER (ABS)
	;; Reset vector
	.org 	0
	jp	init

	.org	0x08
	reti
	.org	0x10
	reti
	.org	0x18
	reti
	.org	0x20
	reti
	.org	0x28
	reti
	.org	0x30
	reti
	.org	0x38
        di
        call _isr
        ei
	reti
	
	.org	0x100
init:
	;; Stack at the top of memory.
	ld	sp,#0xffff        

    ;; enable interrupts
        im      1
        ei
    
        ;; Initialise global variables
	call	_main
	jp	_exit

	;; Ordering of segments for the linker.
	.area	_HOME
	.area	_CODE
        .area   _GSINIT
        .area   _GSFINAL
        
	.area	_DATA
        .area   _BSS
        .area   _HEAP

        .area   _CODE
__clock::
	ld	a,#2
        rst     0x08
	ret
	
_exit::
	;; Exit - special code to the emulator
	ld	a,#0
        rst     0x08
1$:
	halt
	jr	1$

        .area   _GSINIT
gsinit::	

        .area   _GSFINAL
        ret
@