AVR Assembly examples

array_operation_macro.asm

.include "m32def.inc"

.macro array_operation
	push r16
	push xl
	push xh
	push yl
	push yh
	push zl
	push zh

	ldi r16, @1
	ldi xl, low(@2)
	ldi xh, high(@2)
	ldi yl, low(@3)
	ldi yh, high(@3)
	ldi zl, low(@4)
	ldi zh, high(@4)

	loop:
		ld r20, x+
		ld r21, y+
		@0 r20, r21
		st z+, r20		

		dec r16
		brne loop
	
	pop zh
	pop zl
	pop yh
	pop yl
	pop xh
	pop xl
	pop r16
.endmacro

ldi r16, low(ramend)
out spl, r16
ldi r16, high(ramend)
out sph, r16

clc
array_operation adc, 8, 0x100, 0x108, 0x110
clc
array_operation sbc, 8, 0x100, 0x108, 0x118

forever: rjmp forever