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LCD2.asm
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LCD2.asm
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JMP START
.ORG 0050H
START :CALL LCD_INIT
CALL LCD_COFF
CALL WELCOME
CALL DELAY1S
CALL DELAY1S
CALL LCD_CLEAR
CALL GREETING
CALL DELAY1S
CALL DELAY1S
CALL LCD_CLEAR
CALL CRDTS
CALL DELAY1S
HLT
DELAY1S: PUSH PSW
PUSH B
MVI A,0AH
AGAIN: LXI B,2348H
LOOP1S: DCX B
MOV A,C
ORA B
JNZ LOOP1S
DCR A
JNZ AGAIN
POP B
POP PSW
RET
WELCOME: PUSH PSW
MVI A,57H
CALL LCD_SEND
MVI A,45H
CALL LCD_SEND
MVI A,4CH
CALL LCD_SEND
MVI A,43H
CALL LCD_SEND
MVI A,4FH
CALL LCD_SEND
MVI A,4DH
CALL LCD_SEND
MVI A,45H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,54H
CALL LCD_SEND
MVI A,4FH
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,46H
CALL LCD_SEND
MVI A,4FH
CALL LCD_SEND
MVI A,47H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
CALL LCD_NEWL
MVI A,44H
CALL LCD_SEND
MVI A,45H
CALL LCD_SEND
MVI A,54H
CALL LCD_SEND
MVI A,45H
CALL LCD_SEND
MVI A,43H
CALL LCD_SEND
MVI A,54H
CALL LCD_SEND
MVI A,49H
CALL LCD_SEND
MVI A,4FH
CALL LCD_SEND
MVI A,4EH
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,53H
CALL LCD_SEND
MVI A,59H
CALL LCD_SEND
MVI A,53H
CALL LCD_SEND
MVI A,54H
CALL LCD_SEND
MVI A,4DH
CALL LCD_SEND
POP PSW
RET
GREETING: PUSH PSW
MVI A,41H
CALL LCD_SEND
MVI A,4EH
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,38H
CALL LCD_SEND
MVI A,30H
CALL LCD_SEND
MVI A,38H
CALL LCD_SEND
MVI A,35H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,50H
CALL LCD_SEND
MVI A,52H
CALL LCD_SEND
MVI A,4FH
CALL LCD_SEND
MVI A,4AH
CALL LCD_SEND
MVI A,45H
CALL LCD_SEND
MVI A,43H
CALL LCD_SEND
MVI A,54H
CALL LCD_SEND
CALL LCD_NEWL
MVI A,20H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
MVI A,42H
CALL LCD_SEND
MVI A,59H
CALL LCD_SEND
POP PSW
RET
CRDTS: PUSH PSW
MVI A,41H
CALL LCD_SEND
MVI A,4EH
CALL LCD_SEND
MVI A,53H
CALL LCD_SEND
MVI A,48H
CALL LCD_SEND
MVI A,55H
CALL LCD_SEND
MVI A,4CH
CALL LCD_SEND
MVI A,28H
CALL LCD_SEND
MVI A,33H
CALL LCD_SEND
MVI A,30H
CALL LCD_SEND
MVI A,2FH
CALL LCD_SEND
MVI A,45H
CALL LCD_SEND
MVI A,43H
CALL LCD_SEND
MVI A,2FH
CALL LCD_SEND
MVI A,31H
CALL LCD_SEND
MVI A,34H
CALL LCD_SEND
MVI A,29H
CALL LCD_SEND
CALL LCD_NEWL
MVI A,41H
CALL LCD_SEND
MVI A,53H
CALL LCD_SEND
MVI A,48H
CALL LCD_SEND
MVI A,49H
CALL LCD_SEND
MVI A,53H
CALL LCD_SEND
MVI A,48H
CALL LCD_SEND
MVI A,28H
CALL LCD_SEND
MVI A,34H
CALL LCD_SEND
MVI A,33H
CALL LCD_SEND
MVI A,2FH
CALL LCD_SEND
MVI A,45H
CALL LCD_SEND
MVI A,43H
CALL LCD_SEND
MVI A,2FH
CALL LCD_SEND
MVI A,31H
CALL LCD_SEND
MVI A,34H
CALL LCD_SEND
MVI A,29H
CALL LCD_SEND
POP PSW
RET
LCD_COFF: PUSH PSW
MVI A,04H
OUT 01H
MVI A,00H
OUT 01H
MVI A,0C4H
OUT 01H
MVI A,0C0H
OUT 01H
POP PSW
RET
LCD_CLEAR: PUSH PSW
MVI A,04H
OUT 01H
MVI A,00H
OUT 01H
CALL DELAY
MVI A,14H
OUT 01H
MVI A,10H
OUT 01H
CALL DELAY
POP PSW
RET
LCD_NEWL: PUSH PSW
MVI A,0C4H
OUT 01H
MVI A,0C0H
OUT 01H
CALL DELAY
MVI A,04H
OUT 01H
MVI A,00H
OUT 01H
CALL DELAY
POP PSW
RET
DELAY_1: PUSH B
PUSH D
MVI B,2EH
Loop1: MVI C,6AH
Loop2: MVI D,1CH
Loop3: DCR D
JNZ Loop3
DCR C
JNZ Loop2
DCR B
JNZ Loop1
POP D
POP B
RET
DELAY: PUSH PSW
MVI A,0FH
LOOP: DCR A
JNZ LOOP
POP PSW
RET
LCD_INIT: PUSH PSW
MVI A,024H
OUT 01H
MVI A,20H
OUT 01H
CALL DELAY
MVI A,24H
OUT 01H
MVI A,20H
OUT 01H
CALL DELAY
MVI A,84H
OUT 01H
MVI A,80H
OUT 01H
CALL DELAY
MVI A,04H
OUT 01H
MVI A,00H
OUT 01H
CALL DELAY
MVI A,0E4H
OUT 01H
MVI A,0E0H
OUT 01H
CALL DELAY
MVI A,04H
OUT 01H
MVI A,00H
OUT 01H
CALL DELAY
MVI A,64H
OUT 01H
MVI A,60H
OUT 01H
POP PSW
RET
LCD_SEND: PUSH PSW
PUSH B
PUSH D
MOV B,A
ANI 0F0H
MVI D,0CH
ORA D
OUT 01H
CALL DELAY
ANI 0F8H
OUT 01H
MOV A,B
RLC
RLC
RLC
RLC
ANI 0F0H
MVI D,0CH
ORA D
OUT 01H
CALL DELAY
ANI 0F8H
OUT 01H
POP D
POP B
POP PSW
RET