chinese_code.s

LED条屏显示程序,但是对初学者

	.module chinese_code.c
	.area text(rom, con, rel)
	.dbfile E:\MYWORK~1\开发设计\AVR-MP3\mp3开发板光盘\驱动程序\MP3BOA~1.8\chinese_code.c
	.dbfunc e Abtain_code _Abtain_code fV
;    code_buffer -> R12,R13
;         number -> R10
	.even
_Abtain_code::
	xcall push_gset4
	movw R12,R18
	mov R10,R16
	sbiw R28,4
	.dbline -1
	.dbline 17
; //ICC-AVR application builder : 2005-11-12 17:11:59
; // Target : M16
; // Crystal: 8.0000Mhz
; // copyright:鲁军波(endylu)
; // www.shop34612283.taobao.com
; // www.adembed.com
; #include <iom16v.h>
; #include <macros.h>
; #include "main.h"
; 
; 
; extern uint32 CHINALIB_point;
; extern MP3_INFO mp3_info;
; 
; //=======================================================================
; void Abtain_code(uint8 number,uint8 *code_buffer)
; { 
	.dbline 18
;   SD_read_sector2(CHINALIB_point+((long)mp3_info.NAME[number]<<5),code_buffer,24);
	ldi R24,24
	ldi R25,0
	std y+3,R25
	std y+2,R24
	std y+1,R13
	std y+0,R12
	ldi R24,2
	mul R24,R10
	movw R30,R0
	ldi R24,<_mp3_info
	ldi R25,>_mp3_info
	add R30,R24
	adc R31,R25
	ldd R2,z+0
	ldd R3,z+1
	clr R4
	clr R5
	ldi R24,5
	ldi R25,0
	st -y,R24
	movw R16,R2
	movw R18,R4
	xcall lsl32
	lds R4,_CHINALIB_point+2
	lds R5,_CHINALIB_point+2+1
	lds R2,_CHINALIB_point
	lds R3,_CHINALIB_point+1
	add R2,R16
	adc R3,R17
	adc R4,R18
	adc R5,R19
	movw R16,R2
	movw R18,R4
	xcall _SD_read_sector2
	.dbline -2
L1:
	adiw R28,4
	xcall pop_gset4
	.dbline 0 ; func end
	ret
	.dbsym r code_buffer 12 pc
	.dbsym r number 10 c
	.dbend