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I use the MPLAB IDE with an older version of CCS PCW (V3.234). I recently upgraded to a new WIN7-32 box. I discovered today that compiling results in a build failure on all my existing projects.

Fo ...

Update:

I found the problem. I was a bad boy when I placed the ROM table at the high end of the code page. I moved it to within the first 255 words on Page-1 and now it works with the variable base ...

Post a complete test program (short) that will compile.

Thanks for any help you can give.

Well, I created a tiny test program (see below) and looked at the list file. The code section that used ...

I have a data table that I want to place near the top of ROM on a PIC12x509. This table will be edited during chip burning, so putting it at a known place is needed.

The table's code is as follows ...

.... and this also works
Code:
#define ByteOf(addr,n) (&((int8)addr)+n)
movwf ByteOf(acount,2) //w -> acount+2

Thanks, it works great! I was scratching my head trying to figure ...

MCLR is disabled (used as an input). The power supply is not burdened with slow rise times -- the only cap is a single .1uF mono ceramic across the PIC (short leads). The leads to the power supply are ...

Re: PIC12F509

I discovered that at power up, the OSCAL value is not correctly loaded. It gets random data. I have confirmed that the PCB C Compiler, Version 3.221, is correctly generating the "MOVW ...