Post by thread:Simple instructions

At 01:40 PM 3/28/97 +0100, you wrote: >Does anybody has a set of well-known (for you...) functions like: > > if A>B then goto ... > if A<=B then ... else ... > ... etc CCS C does that just fine. So will a Basic compiler, etc. <G> Check out the thread "Two puzzles for you, All ( Probably useful tricks ;-)" on the WWW page. This ran over teh last week or two, and I've gleaned some good code to try myself. One I recall had exactly what you want. Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================

David BALDWIN <spam_OUTPICLISTTakeThisOuTMITVMA.MIT.EDU> wrote: > Does anybody has a set of well-known (for you...) functions like: > > if A>B then goto ... > if A<=B then ... else ... > ... etc David: See the answer to Question #22, in the "Microchip PIC" area of the "Answers" page on my company's web site. -Andy === Andrew Warren - .....fastfwdKILLspam@spam@ix.netcom.com === Fast Forward Engineering - Vista, California === === Custodian of the PICLIST Fund -- For more info, see: === www.geocities.com/SiliconValley/2499/fund.html

David BALDWIN wrote: > > Does anybody has a set of well-known (for you...) functions like: > > if A>B then goto ... > if A<=B then ... else ... > ... etc In case when B is constant and A>B construction need: ;A>B then goto ADDR MOVFW A SUBLW B SKPC ;SKIP IF A<=B GOTO ADDR ;GOTO IF A>B ....... ADDR: In case when A and B are variables and A<=B construction need: ;A<=B MOVFW A SUBWF B,W SKPC ;SKIP IF A<=B GOTO ELSE THEN: ..... ELSE: ..... At any situation check Carry bit status after SUBWF operation was carry out. SUBWF REG,W result to Carry=1 if (REG-W)>=0 else Carry will be equal zero(0). SUBLW CONST result to Carry=1 if (CONST-W)>=0 else Carry=0. WBR Dmitry. P.S. It's common question as I see, at more definite situation probably exist better solution.