Post by thread:Good old friend... W

Howdy, Am I mistaken or is W an 8 bit register? I try to do the following: MOVLW 250 And get the warning: Warning[202] C:\WINDOWS\DESKTOP\LED.ASM 60 : Argument out of range. Least significant bits used. It does this for any litteral over 99. MOVLW 99 ;Works Fine MOVLW 100 ;Bad. Maybe it is just another MPLAB quirk thing... they really are annoying to the beginner though, I keep thinking that I am doing something wrong.

Radix set to hex, not decimal? {Quote hidden}>-----Original Message----- >From: Samuel Ace Winchenbach [SMTP:spam_OUTswinchenTakeThisOuTEECE.MAINE.EDU] >Sent: 17 May 2000 12:45 >To: .....PICLISTKILLspam@spam@MITVMA.MIT.EDU >Subject: Good old friend... W > >Howdy, > >Am I mistaken or is W an 8 bit register? > >I try to do the following: > >MOVLW 250 > >And get the warning: > >Warning[202] C:\WINDOWS\DESKTOP\LED.ASM 60 : Argument out of range. Least >significant bits used. > > >It does this for any litteral over 99. >MOVLW 99 ;Works Fine >MOVLW 100 ;Bad. > >Maybe it is just another MPLAB quirk thing... they really are annoying to >the beginner though, I keep thinking that I am doing something wrong.

Sounds to me like your default radix is set to hexadecimal: 0x99 = decimal 153, which fits in 8 bits 0x100 = decimal 256, which doesn't. Put: radix dec at the top of your assembler to get it to read unformatted numbers in decimal. Andy {Original Message removed}

Hi Midgley: Try this: radix dec .... movlw .250 ; This will know it's decimal as a point signify decimal number. Midgley John wrote: > Radix set to hex, not decimal? > > >{Original Message removed}

Check to see if default radix is hex or decimal. Hex would fail but decimal would work ok. At 07:44 AM 5/17/00 -0400, you wrote: {Quote hidden}>Howdy, > >Am I mistaken or is W an 8 bit register? > >I try to do the following: > >MOVLW 250 > >And get the warning: > >Warning[202] C:\WINDOWS\DESKTOP\LED.ASM 60 : Argument out of range. Least >significant bits used. > > >It does this for any litteral over 99. >MOVLW 99 ;Works Fine >MOVLW 100 ;Bad. > >Maybe it is just another MPLAB quirk thing... they really are annoying to >the beginner though, I keep thinking that I am doing something wrong. > > Larry G. Nelson Sr. L.NelsonKILLspamieee.org http://www.ultranet.com/~nr

Change default radix from hex to decimal :) On Wed, 17 May 2000, Samuel Ace Winchenbach wrote: {Quote hidden}> Date: Wed, 17 May 2000 07:44:55 -0400 > From: Samuel Ace Winchenbach <.....swinchenKILLspam.....EECE.MAINE.EDU> > Reply-To: pic microcontroller discussion list <EraseMEPICLISTspam_OUTTakeThisOuTMITVMA.MIT.EDU> > To: PICLISTspam_OUTMITVMA.MIT.EDU > Subject: Good old friend... W > > Howdy, > > Am I mistaken or is W an 8 bit register? > > I try to do the following: > > MOVLW 250 > > And get the warning: > > Warning[202] C:\WINDOWS\DESKTOP\LED.ASM 60 : Argument out of range. Least > significant bits used. > > > It does this for any litteral over 99. > MOVLW 99 ;Works Fine > MOVLW 100 ;Bad. > > Maybe it is just another MPLAB quirk thing... they really are annoying to > the beginner though, I keep thinking that I am doing something wrong. >