main.asm

来自「STM8S实验 ASM源程序」· 汇编 代码 · 共 123 行

stm8/

	#include "mapping.inc"

  segment 'ram0'
couter ds.b 1
r00    ds.b 1
r01    ds.b 1
r02    ds.b 1
r03    ds.b 1
r04    ds.b 1
r05    ds.b 1
	segment 'rom'
main.l
	; initialize SP
	ldw X,#stack_end
	ldw SP,X

	#ifdef RAM0	
	; clear RAM0
ram0_start.b EQU $ram0_segment_start
ram0_end.b EQU $ram0_segment_end
	ldw X,#ram0_start
clear_ram0.l
	clr (X)
	incw X
	cpw X,#ram0_end	
	jrule clear_ram0
	#endif

	#ifdef RAM1
	; clear RAM1
ram1_start.w EQU $ram1_segment_start
ram1_end.w EQU $ram1_segment_end	
	ldw X,#ram1_start
clear_ram1.l
	clr (X)
	incw X
	cpw X,#ram1_end	
	jrule clear_ram1
	#endif

	; clear stack
stack_start.w EQU $stack_segment_start
stack_end.w EQU $stack_segment_end
	ldw X,#stack_start
clear_stack.l
	clr (X)
	incw X
	cpw X,#stack_end	
	jrule clear_stack
  
  intel
	ldw x,#0
	ld a ,#0ffh
	mov r01 ,#00h
	mov r02 ,#7dh
	ld  r00,a
 
	ld a,r02
	ld xl,a
	ld a,r00
	mul x,a
	ldw r04 ,x
	
	ld a,r01
	ld xl,a
	ld a,r00
	mul x,a
	
	addw x,r03
  ldw  r03,x
	
	ldw x,r04

  mov couter,#6 
adc_div:
  srlw    x	
	dec couter 
	jrne adc_div
	
	jp $

	interrupt NonHandledInterrupt
NonHandledInterrupt.l
	iret
  motorola
	segment 'vectit'
	dc.l {$82000000+main}									; reset
	dc.l {$82000000+NonHandledInterrupt}	; trap
	dc.l {$82000000+NonHandledInterrupt}	; irq0
	dc.l {$82000000+NonHandledInterrupt}	; irq1
	dc.l {$82000000+NonHandledInterrupt}	; irq2
	dc.l {$82000000+NonHandledInterrupt}	; irq3
	dc.l {$82000000+NonHandledInterrupt}	; irq4
	dc.l {$82000000+NonHandledInterrupt}	; irq5
	dc.l {$82000000+NonHandledInterrupt}	; irq6
	dc.l {$82000000+NonHandledInterrupt}	; irq7
	dc.l {$82000000+NonHandledInterrupt}	; irq8
	dc.l {$82000000+NonHandledInterrupt}	; irq9
	dc.l {$82000000+NonHandledInterrupt}	; irq10
	dc.l {$82000000+NonHandledInterrupt}	; irq11
	dc.l {$82000000+NonHandledInterrupt}	; irq12
	dc.l {$82000000+NonHandledInterrupt}	; irq13
	dc.l {$82000000+NonHandledInterrupt}	; irq14
	dc.l {$82000000+NonHandledInterrupt}	; irq15
	dc.l {$82000000+NonHandledInterrupt}	; irq16
	dc.l {$82000000+NonHandledInterrupt}	; irq17
	dc.l {$82000000+NonHandledInterrupt}	; irq18
	dc.l {$82000000+NonHandledInterrupt}	; irq19
	dc.l {$82000000+NonHandledInterrupt}	; irq20
	dc.l {$82000000+NonHandledInterrupt}	; irq21
	dc.l {$82000000+NonHandledInterrupt}	; irq22
	dc.l {$82000000+NonHandledInterrupt}	; irq23
	dc.l {$82000000+NonHandledInterrupt}	; irq24
	dc.l {$82000000+NonHandledInterrupt}	; irq25
	dc.l {$82000000+NonHandledInterrupt}	; irq26
	dc.l {$82000000+NonHandledInterrupt}	; irq27
	dc.l {$82000000+NonHandledInterrupt}	; irq28
	dc.l {$82000000+NonHandledInterrupt}	; irq29

	end