Rabbit 3000 User Manual page 240

Spreadsheet Conventions
Flag
f
fr
r
s
Flag
b
d
s
S Z L/V
*
-
*
-
* The L/V (logical/overflow) flag serves a dual purpose—
232
ALTD ("A" Column) Symbol Key
ALTD selects alternate flags
ALTD selects alternate flags and register
ALTD selects alternate register
ALTD operation is a special case
IOI and IOE ("I" Column) Symbol Key
IOI and IOE affect source and destination
IOI and IOE affect destination
IOI and IOE affect source
Flag Register Key
*
C
Sign flag affected
Sign flag not affected
Zero flag affected
Zero flag not affected
LV flag contains logical check result
L
LV flag contains arithmetic overflow result
V
LV flag is cleared
0
LV flag is affected
*
Carry flag is affected
*
Carry flag is not affected
-
Carry flag is cleared
0
Carry flag is set
1
L/V is set to 1 for logical operations if any of the four
most significant bits of the result are 1, and L/V is reset to
0 if all four of the most significant bits of the result are 0.
Description
Description
Description
Rabbit 3000 Microprocessor