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程序代码 \9052ASM\9052-P~1\PCI-CO.asm .MODEL SMALL .DATA DIS0 DB PCI CONFIG INFORMATION!$;提示信息 DIS1 DB PCI ADDRESS 0 $; DIS2 DB PCI ADDRESS 1 $ DIS3 DB PCI MEMORY ADDRESS $ DIS4 DB PCI INTERRUPT LINE $ DIS5 DB BIOS NOT SUPPER!$ DIS6 DB READ PCI BOARD FAIL!$ ;-------PCI Configuration Space Registers------------------------------- PCI_CS_VENDOR_ID EQU 0 PCI_CS_DEVICE_ID EQU 2 PCI_CS_COMMAND EQU 4 PCI_CS_STATUS EQU 6 PCI_CS_REVISION EQU 8 PCI_CS_CLASS_CODE EQU 9 PCI_CS_CACHE_LINE_SIZE EQU 0CH PCI_CS_MASTER_LATENCY EQU 0DH PCI_CS_HEADER_TYPE EQU 0EH PCI_CS_BIST EQU 0FH PCI_CS_BASE_ADDRESS_0 EQU 10H PCI_CS_BASE_ADDRESS_1 EQU 14H PCI_CS_BASE_ADDRESS_2 EQU 18H PCI_CS_BASE_ADDRESS_3 EQU 1CH PCI_CS_BASE_ADDRESS_4 EQU 20H PCI_CS_BASE_ADDRESS_5 EQU 24H PCI_CS_EXPANSION EQU 30H PCI_CS_INTERRUPT_LINE EQU 3CH PCI_CS_INTERRUPT_PIN EQU 3DH PCI_CS_MIN_GNT EQU 3EH PCI_CS_MAX_LAT EQU 3FH ;---------------------END------------------------- ADDRESS_IO_0 DW ? ADDRESS_IO_1 DW ? ADDRESS_MEM_L DW ? ADDRESS_MEM_H DW ? INTERRUPT_LINE DB ? .STACK 100H .CODE .STARTUP MOV AL,3 MOV AH,0 INT 10H ;置显示方式 MOV DX,OFFSET DIS0 ;显示提示 MOV AH,9 INT 21H MOV AH,2H MOV BH,0 MOV DH,1 MOV DL,0 INT 10H ;置游标位置 MOV AH,0B1H MOV AL,1H INT 1AH .IF AH!=00 MOV DX,OFFSET DIS5 ;显示 BIOS NOT SUPPER! JMP m_EXIT .ENDIF MOV AH,0B1H MOV AL,02H MOV CX,8376H ；设备ID MOV DX,10EBH ；厂商ID MOV SI,0 INT 1AH ；计算机接口仪存在?? JNC AA MOV DX,OFFSET DIS1 MOV AH,9 INT 21H JMP m_EXIT AA: MOV AH,0B1H MOV AL,09H MOV DI,PCI_CS_BASE_ADDRESS_1 INT 1AH ;读取该卡地址空间,0起始地址 .IF AH!=0 MOV DX,OFFSET DIS1 MOV AH,9 INT 21H JMP m_EXIT .ENDIF AND CX,0FFFCH MOV AX,CX MOV ADDRESS_IO_0,AX MOV AH,0B1H MOV AL,09H MOV DI,PCI_CS_BASE_ADDRESS_3 ;读取该卡地址空间,1起始地址 INT 1AH .IF AH!=0 MOV DX,OFFSET DIS1 MOV AH,9 INT 21H JMP m_EXIT .ENDIF AND CX,0FFFCH MOV AX,CX MOV ADDRESS_IO_1,AX MOV AH