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Mnemonic
Operand
O ~ e r . Code
Address
BAR
XXX
BAR
BAR
BAR
BAR
BAR
BAR
BAR
BAR
BAR
BAR
BAR
BAR
BAR
BAR
B P L
BMI
BZE
BNZ
BOV
BNO
BU F
BNU
BER
BNE
BOO
BON
BUO
BUN
Index
Time
Word
Microsec.
-
Description
BRANCH ON AAU INTERROGATED CONDITIONS.
The BAR instruction interrogates the AAU for spe-
cific conditions.
The condition tested is indicated by
a mnemonic placed in the operand a d d r e s s field and
indicated by XXX in the format given here. If the
condition tested is true, the computer executes the
next sequential instruction.
If false, the second
sequential instruction is executed. BAR instructions
require a
7 in GAP coding sheet column 20.
7
12
BRANCH ON AAU PLUS. Register AX is tested f o r a
plus sign.
7
12
BRANCH ON AAU MINUS. Register AX is tested f o r
a minus sign.
7
12
BRANCH ON AAU ZERO.
Register AX is tested for
a l l zeros.
7
12
BRANCH ON AAU NOT ZERO.
Register AX is
tested f o r not all zeros.
7
12
BRANCH ON AAU OVERFLOW.
AAU is tested f o r
overflow indicator ON.
7
12
BRANCH ON AAU NO OVERFLOW.
AAU is tested
f o r overflow indicator OFF.
7
12
BRANCH ON AAU UNDERFLOW.
AAU is tested f o r
underflow indicator ON.
7
12
BRANCH ON AAU NO UNDERFLOW. AAU is tested
for underflow indicator OFF.
7
12
BRANCH ON AAU ERROR.
The e r r o r indicator i s
tested f o r ON.
7
12
BRANCH ON AAU NO ERROR. The e r r o r indicator
is tested for OFF.
7
12
BRANCH ON OVERFLOW HOLD ON. AAU i s tested
for overflow indicator ON.
7
12
BRANCH ON OVERFLOW HOLD NOT ON.
AAU is
tested f o r overflow indicator OFF.
7
12
BRANCH ON UNDERFLOW HOLD ON. AAU is tested
f o r underflow hold indicator ON.
7
12
BRANCH ON UNDERFLOW HOLD NOT ON. AAU is
tested f o r underflow hold indicator OFF.
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