10-16转换.asm

关于AVR的一个10进制转化成16进制的源程序

        ;char BAI,SHI,GE,i = 9;
	LDI     R20,0x09
             ;QIAN = 0x3e8;
	LDI     R24,0xE8         
	LDI     R25,0x03         
	MOVW    R10,R24          
             ;BAI  = 0X64;
	LDI     R24,0x64         
	MOV     R12,R24          
             ;SHI  = 0X0A;
	LDI     R22,0x0A         
             ;TEN = QIAN * i + BAI * i + SHI * i + i;
	MUL     R12,R20          
	MOVW    R2,R0            
	MOV     R18,R20          
	CLR     R19              
	MOVW    R16,R10          
	RCALL    subroutine      
	MOVW    R10,R16          
	ADD     R10,R2           
	ADC     R11,R3           
	MUL     R22,R20          
	ADD     R10,R0           
	ADC     R11,R1           
	MOV     R2,R20           
	CLR     R3               
	ADD     R10,R2           
	ADC     R11,R3           
	ret

subroutine:
	MUL     R16,R18          
	MOVW    R24,R0           
	MUL     R17,R18          
	ADD     R25,R0           
	MUL     R16,R19          
	ADD     R25,R0           
	MOVW    R16,R24                     
	RET                      
;通用子程序
Data10To16Sub:
			ldi     R22,0xE8         
			ldi     R23,0x03
			         
			ldi	r24,0x64
			mov	r10,r24
			
			ldi	r20,0x0a
			
			ldi	r24,0x00`
			mul	r24,r10
			movw	r2,r0
			
			ldi	r16,0x00
			ldi	r17,0x00
			movw	r18,r22
			mul	r16,r18
			movw	r24,r0
			mul	r17,r18
			add	r25,r0
			mul	r16,r19
			add	r25,r0
			movw	r16,r24
			
			movw	r4,r16
			add	r4,r2
			adc	r5,r3
			ldi	r24,0x09
			mul	r24,r20
			add	r4,r0
			adc	r5,r1
			ldi     R16,0x09
			clr	r17            
			clc              
			ADD     R4,r16           
			ADC     R5,r17        
			ret 



;标准子程序
			LDI     R20,0x08
             ;QIAN = 0x3e8;
			LDI     R24,0xE8         
			LDI     R25,0x03         
			MOVW    R10,R24          
             ;BAI  = 0X64;
			LDI     R24,0x64         
			MOV     R12,R24          
             ;SHI  = 0X0A;
			LDI     R22,0x0A         
             ;TEN = QIAN * i + BAI * i + SHI * i + i;
			MUL     R12,R20          
			MOVW    R2,R0            
			MOV     R18,R20          
			CLR     R19              
			MOVW    R16,R10          
			;RCALL    subroutine
			MUL     R16,R18          
			MOVW    R24,R0           
			MUL     R17,R18          
			ADD     R25,R0           
			MUL     R16,R19          
			ADD     R25,R0           
			MOVW    R16,R24       
			MOVW    R10,R16          
			ADD     R10,R2           
			ADC     R11,R3           
			MUL     R22,R20          
			ADD     R10,R0           
			ADC     R11,R1           
			MOV     R2,R20           
			CLR     R3               
			ADD     R10,R2           
			ADC     R11,R3 
			RET