mod154

主要是8051源代码

;      REV.  1.0    June 1, 1988
P0     DATA  080H  ;Port 0
SP     DATA  081H  ;Stack Pointer
DPL    DATA  082H  ;Data Pointer - Low Byte
DPH    DATA  083H  ;Data Pointer - High Byte
PCON   DATA  087H  ;Power Control
TCON   DATA  088H  ;Timer Control
TMOD   DATA  089H  ;Timer Mode
TL0    DATA  08AH  ;Timer 0 - Low Byte
TL1    DATA  08BH  ;Timer 1 - Low Byte
TH0    DATA  08CH  ;Timer 0 - High Byte
TH1    DATA  08DH  ;Timer 1 - High Byte
P1     DATA  090H  ;Port 1
SCON   DATA  098H  ;Serial Port Control
SBUF   DATA  099H  ;Serial Port Buffer
P2     DATA  0A0H  ;Port 2
IE     DATA  0A8H  ;Interrupt Enable
P3     DATA  0B0H  ;Port 3
IP     DATA  0B8H  ;Interrupt Priority
T2CON  DATA  0C8H  ;Timer 2 Control
RCAP2L DATA  0CAH  ;Timer 2 Capture Register - Low Byte
RCAP2H DATA  0CBH  ;Timer 2 Capture Register - High Byte
TL2    DATA  0CCH  ;Timer 2 - Low Byte
TH2    DATA  0CDH  ;Timer 2 - High Byte
PSW    DATA  0D0H  ;Program Status Word
ACC    DATA  0E0H  ;Accumulator
B      DATA  0F0H  ;Multiplication Register
IOCON  DATA  0F8H  ;I/O Control
IT0    BIT   088H  ;TCON.0 - External Interrupt 0 Type
IE0    BIT   089H  ;TCON.1 - External Interrupt 0 Edge Flag
IT1    BIT   08AH  ;TCON.2 - External Interrupt 1 Type
IE1    BIT   08BH  ;TCON.3 - External Interrupt 1 Edge Flag
TR0    BIT   08CH  ;TCON.4 - Timer 0 On/Off Control
TF0    BIT   08DH  ;TCON.5 - Timer 0 Overflow Flag
TR1    BIT   08EH  ;TCON.6 - Timer 1 On/Off Control
TF1    BIT   08FH  ;TCON.7 - Timer 1 Overflow Flag
RI     BIT   098H  ;SCON.0 - Receive Interrupt Flag
TI     BIT   099H  ;SCON.1 - Transmit Interrupt Flag
RB8    BIT   09AH  ;SCON.2 - Receive Bit 8
TB8    BIT   09BH  ;SCON.3 - Transmit Bit 8
REN    BIT   09CH  ;SCON.4 - Receive Enable
SM2    BIT   09DH  ;SCON.5 - Serial Mode Control Bit 2
SM1    BIT   09EH  ;SCON.6 - Serial Mode Control Bit 1
SM0    BIT   09FH  ;SCON.7 - Serial Mode Control Bit 0
EX0    BIT   0A8H  ;IE.0 - External Interrupt 0 Enable
ET0    BIT   0A9H  ;IE.1 - Timer 0 Interrupt Enable
EX1    BIT   0AAH  ;IE.2 - External Interrupt 1 Enable
ET1    BIT   0ABH  ;IE.3 - Timer 1 Interrupt Enable
ES     BIT   0ACH  ;IE.4 - Serial Port Interrupt Enable
ET2    BIT   0ADH  ;IE.5 - Timer 2 Interrupt Enable
EA     BIT   0AFH  ;IE.7 - Global Interrupt Enable
RXD    BIT   0B0H  ;P3.0 - Serial Port Receive Input
TXD    BIT   0B1H  ;P3.1 - Serial Port Transmit Output
INT0   BIT   0B2H  ;P3.2 - External Interrupt 0 Input
INT1   BIT   0B3H  ;P3.3 - External Interrupt 1 Input
T0     BIT   0B4H  ;P3.4 - Timer 0 Count Input
T1     BIT   0B5H  ;P3.5 - Timer 1 Count Input
WR     BIT   0B6H  ;P3.6 - Write Control for External Memory
RD     BIT   0B7H  ;P3.7 - Read Control for External Memory
PX0    BIT   0B8H  ;IP.0 - External Interrupt 0 Priority
PT0    BIT   0B9H  ;IP.1 - Timer 0 Priority
PX1    BIT   0BAH  ;IP.2 - External Interrupt 1 Priority
PT1    BIT   0BBH  ;IP.3 - Timer 1 Priority
PS     BIT   0BCH  ;IP.4 - Serial Port Priority
PT2    BIT   0BDH  ;IP.5 - Timer 2 Priority
PCT    BIT   0BDH  ;IP.7 - Interrupt Priority Disable
CAP2   BIT   0C8H  ;T2CON.0 - Capture or Reload Select
CNT2   BIT   0C9H  ;T2CON.1 - Timer or Counter Select
TR2    BIT   0CAH  ;T2CON.2 - Timer 2 On/Off Control
EXEN2  BIT   0CBH  ;T2CON.3 - Timer 2 External Enable Flag
TCLK   BIT   0CCH  ;T2CON.4 - Transmit Clock Select
RCLK   BIT   0CDH  ;T2CON.5 - Receive Clock Select
EXF2   BIT   0CEH  ;T2CON.6 - External Transition Flag
TF2    BIT   0CFH  ;T2CON.7 - Timer 2 Overflow Flag
P      BIT   0D0H  ;PSW.0 - Accumulator Parity Flag
OV     BIT   0D2H  ;PSW.2 - Overflow Flag
RS0    BIT   0D3H  ;PSW.3 - Register Bank Select 0
RS1    BIT   0D4H  ;PSW.4 - Register Bank Select 1
F0     BIT   0D5H  ;PSW.5 - Flag 0
AC     BIT   0D6H  ;PSW.6 - Auxiliary Carry Flag
CY     BIT   0D7H  ;PSW.7 - Carry Flag
ALF    BIT   0F8H  ;IOCON.0 - Ports 0,1,2,3 Outputs Float
P1F    BIT   0F9H  ;IOCON.1 - Set P1 High Impedance Input
P2F    BIT   0FAH  ;IOCON.2 - Set P2 High Impedance Input
P3F    BIT   0FBH  ;IOCON.3 - Set P3 High Impedance Input
IZC    BIT   0FCH  ;IOCON.4 - Pull up Resistors on P1,P2,P3 Change
SERR   BIT   0FDH  ;IOCON.5 - Serial Receive Error Bit
T32    BIT   0FEH  ;IOCON.6 - 32-Bit Timer/Counter Control
WDT    BIT   0FFH  ;IOCON.7 - Watchdog Timer Mode