flashw_asm.lst

基于凌阳单片机的闪存的读写操作。是使用汇编语言实现的程序

Sunplus u'nSP Assembler - Ver. 1.10.0
              Listing File Has Been Relocated
                            	//函数：_F_write_flash_asm（）
                            	//语法：
                            	.DEFINE C_FLASH_MATCH			0xAAAA
                            	.DEFINE C_FLASH_PAGE_ERASE		0x5511		//擦除一页
                            	.DEFINE C_FLASH_SEQUENT_PGM		0x5544		//写多个字	
                            	
                            	//****************************************************
                            	//void F_write_flash_asm(int address,int data,int N)
                            	//描述：写闪存
                            	//参数：address, data, N 
                            	//返回：无
                            	//****************************************************
                            		
00008054                    	.code
                            	.public _F_write_flash_asm
                            	.DEFINE  P_Flash_Ctrl  0x7555
                            	_F_write_flash_asm: .proc	
00008054 88 DA              	    push bp to [sp]
00008055 08 0B 01 00        		bp = sp+1
00008057 03 92              		r1 = [bp+3]						//flash base address
00008058 04 94              		r2 = [bp+4]						//data
00008059 05 96              		r3 = [bp+5]						//多个字节	
0000805A 0C 99 AA AA        		r4 = C_FLASH_MATCH				//AAAA
0000805C 1C D9 55 75        		[P_Flash_Ctrl] = r4
                            	L_FlashWriteLoop:
0000805E 0C 99 44 55        		r4 = C_FLASH_SEQUENT_PGM		//5544
00008060 1C D9 55 75        		[P_Flash_Ctrl] = r4
00008062 02 99              		r4 = r2
00008063 41 04              		r2=r2+1
00008064 D1 D8              		[r1++] = r4
                            	
00008065 41 26              		r3 -= 1
00008066 49 4E              		jnz L_FlashWriteLoop
                            	//	[P_Flash_Ctrl] = r3				//写结束
00008067 88 98              		pop bp from [sp]
00008068 90 9A              		retf
                            		.ENDP
0 error(s), 0 warning(s).