Hello Bruce,

I am not doing anything that didn't work for the 16F877A. The compiler returns errors for this
code segment. These are the items it returns errors for...T1CON.0 , PIE1.0 and PIR1.0

See below.

[ code]
ASM
myint


; Save and restore FSR and any other registers used
bcf T1CON.0 ; stop timer 1
bcf PIR1.0 ; clear over flow flag
movwf 00h ; load timer for 16,535 * 8 prescaler interrupt on 16 bit timer
movf TMR1H,W
movf TMR1L,W
bsf T1CON.0 ; re-enable timer 1
bcf PIE1.0 ; clear overflow flag just in case

retfie ; Return from interrupt

endasm

[ /code]