103
Symbol Math Instructions
Section 3-9
DOUBLE BCD
SUBTRACT
WITH CARRY
–BCL
@–BCL
417
Output
Required
SIGNED BINARY
MULTIPLY
*
@*
420
Output
Required
DOUBLE
SIGNED BINARY
MULTIPLY
*L
@*L
421
Output
Required
UNSIGNED
BINARY
MULTIPLY
*U
@*U
422
Output
Required
DOUBLE
UNSIGNED
BINARY
MULTIPLY
*UL
@*UL
423
Output
Required
Instruction
Mnemonic
Code
Symbol/Operand Function Location
Execution condition
−BCL(417)
Mi
Su
R
Mi: 1st minuend
word
Su: 1st
subtrahend word
R: 1st result word
Mi +1
Su+1
R+1
CY
Mi
Su
RCY
(BCD)
(BCD)
(BCD)
CY will turn ON
when there is a
borrow.
Subtracts 8-digit (double-word) BCD data and/or constants with the
Carry Flag (CY).
−
*(420)
Md
Mr
R
Md: Multiplicand
word
Mr: Multiplier
word
R: Result word
Md
Mr
R +1 R
(Signed binary)
(Signed binary)
(Signed binary)
Multiplies 4-digit signed hexadecimal data and/or constants.
×
*L(421)
Md
Mr
R
Md: 1st
multiplicand word
Mr: 1st multiplier
word
R: 1st result word
Md + 1
Mr + 1
R + 1 RR + 3
R + 2
Md
Mr
(Signed binary)
(Signed binary)
(Signed binary)
Multiplies 8-digit signed hexadecimal data and/or constants.
×
*U(422)
Md
Mr
R
Md: Multiplicand
word
Mr: Multiplier
word
R: Result word
Md
Mr
R +1 R
(Unsigned binary)
(Unsigned binary)
(Unsigned binary)
Multiplies 4-digit unsigned hexadecimal data and/or constants.
×
*UL(423)
Md
Mr
R
Md: 1st
multiplicand word
Mr: 1st multiplier
word
R: 1st result word
Md + 1
Mr + 1
R + 1 RR + 3
R + 2
Md
Mr
(Unsigned binary)
(Unsigned binary)
(Unsigned binary)
Multiplies 8-digit unsigned hexadecimal data and/or constants.
×