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slavka012
Joined: 10 Feb 2012
Posts: 28
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| Assembler, goto instruction |
 Posted: Tue Apr 28, 2015 4:56 pm |
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with microchip assembler I can use the following construction:
Goto $+1
where $ denotes current PC. Is there equivalent syntax for use with inline assembler with CCS ? |
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asmboy
Joined: 20 Nov 2007
Posts: 2128
Location: albany ny
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| Posted: Tue Apr 28, 2015 5:25 pm |
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WHY ??
edit: duh - i forgot GOTO is a 2 cycle instruct ;-((
thiS IS Basically 2 NOP
or in ccs
delay_cycles(2);
Last edited by asmboy on Wed Apr 29, 2015 1:35 pm; edited 2 times in total |
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slavka012
Joined: 10 Feb 2012
Posts: 28
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| Posted: Tue Apr 28, 2015 5:34 pm |
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ok I already found a solution - bra 0. Hm no, compiler does not take that
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Yes it is basically a nop, but one that takes two cycles to execute.
I can't call delay_cycles from inside the #asm block. Why I want goto $+1 instead of 2 nop's, well, no huge reason other than code being a little more compact. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19538
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| Posted: Tue Apr 28, 2015 11:40 pm |
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Just use delay_cycles. Cheat:
| Code: |
#DEFINE NOP2 #endasm delay_cycles(2); #asm
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Then just use the instruction 'NOP2' in the assembler when you want a two cycle delay. |
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