Hey guys. I'm just learning the basis of embedded with Keil. I'm working on the 8051. Doing this program to find the factorial of a number. Got the code online and I can't understand why it won't run. Help me out, guys.
1.ORG 0000H 2.MOV R0, #05H 3.MOV A, R0 4.ACALL FACT 5.FACT: DEC R0 6. CJNE R0, #1, REL 7. SJMP STOP 8.REL: MOV B,R0 9. MUL AB 10. ACALL FACT 11.STOP: END 12.END
I added the last END after it showed a warning about missing END statement. I get the following errors/warnings: Q3.s(0): error A21: EXPRESSION WITH FORWARD REFERENCE NOT PERMITTED Q3.s(11) SYNTAX ERROR Target not created.
Leading spaces and separation are important. Review other working and assembling code and emulate style and formatting more exactly.
and Please read the manual for specific details: http://www.keil.com/support/man/docs/a51/a51_wp_statements.htm