I'm wondering, Does assembler support if staments? (like a C program) Tried something very simple:
org 0h sjmp BEGIN org 50h BEGIN: IF R0 == #45 MOV A, #54 CPL A ELSE MOV A, #45 CPL A ENDIF END
Does assembler support if staments Yes, but not in the way that you mean. There are several conditional statements you can use in assembly, but the can only check the values of SET, EQU, or other fixed expressions. They cannot check things that change at runtime. Refer to: http://www.keil.com/support/man/docs/a51/a51_ap_conditional.htm Jon
This simple example it's just a #ifdef for set/equ. That's too bad, C-like IF statament would make life much easier. Thank you both for reply.
C-like IF statament would make life much easier Get "the bible" and for this read chapter 2 Erik here are the links to "the bible" Chapter 1 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_ARCH_1.pdf chapter 2 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_PROG_GUIDE_1.pdf chapter 3 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_HARDWARE_1.pdf
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