| ??? 02/20/10 14:37 Read: times |
#173354 - even simpler Responding to: ???'s previous message |
GETCMD:
MOV A,#0
ACALL CHAR_IN ;WAIT FOR PC TO SENT A CHARACTER
;NOW PROCESS
CJNE A,#'1',NOT1 ;IF ITS NOT 1 THEN CHECK NEXT POSSIBILITY
SUB1: MOV A, #01h
sjmp sub1234
;; sjmp ENDCHK ; avoid undefined ACC behavior of other subroutines
NOT1: CJNE A,#'2',NOT2 ;IF ITS NOT 2 THEN CHECK NEXT POSSIBILITY
SUB2: MOV A, #02h sjmp SUB2 ;ELSE ITS 2
sjmp sub1234
;; sjmp ENDCHK ; avoid undefined ACC behavior of other subroutines
NOT2: CJNE A,#'3',NOT3 ;IF ITS NOT 3 THEN CHECK NEXT POSSIBILITY
SUB3: MOV A, #04h
sjmp sub1234
;; sjmp ENDCHK ; avoid undefined ACC behavior of other subroutines
NOT3: CJNE A,#'4',NOT4 ;IF ITS NOT 4 THEN CHECK NEXT POSSIBILITY
SUB4: MOV A, #08h
sjmp sub1234 NOT4:
ENDCHK:
RET
sub1234:
MOV P2, A ;TURN ON PORT2 PIN 0
ACALL DELAY
MOV P2, #00h
sjmp endck
superfluous labels left, ignore possibble misspellingd, "instruction explanation" in lieu of comments not fixed '4' setting pin 0 changed to pin 3 Erik |
| Topic | Author | Date |
| Question on asm code | 01/01/70 00:00 | |
| 2 things | 01/01/70 00:00 | |
| some change | 01/01/70 00:00 | |
| even simpler | 01/01/70 00:00 | |
| thanks for the simplified | 01/01/70 00:00 | |
| yes, and even simpler | 01/01/70 00:00 | |
| code and comments | 01/01/70 00:00 | |
| ;; ?? | 01/01/70 00:00 | |
| thanks for the explanation | 01/01/70 00:00 | |
| Short? | 01/01/70 00:00 | |
| need some helps | 01/01/70 00:00 | |
| Your circuit should work | 01/01/70 00:00 | |
| Getting Rid Of Power On Relay Energize | 01/01/70 00:00 | |
Thank You All | 01/01/70 00:00 | |
| document what happens to ACC. | 01/01/70 00:00 | |
| noticed and questions | 01/01/70 00:00 |