Msg: 1154 *Conference*

12-23-91 18:14:08

From: ERIK FRANCIS

To : STEVE MANGUM

Subj: REPLY TO MSG #1143 (<S>AVE TO DISK...)

CC is a conditional CALL -- the two-byte address specified in the first operand
will be called only if the carry bit is set.  The conditions for the CALL
(C...), JMP (J...), and RET (R...) are:
 
    NZ  not zero
    Z   zero
    NC  not carry
    C   carry
    PO  parity odd
    OE  parity even (is this a typo?  I suspect it's really PE)
    P   plus
    M   minus
 
The XTHL exchanges the contents of the H-L register with the two-byte space
located at where the stack point (SP) is pointing.
 
If you need any help with looking up other ones, or would like to know specific
conditions, I'd be glad to help.