Increment/Decrement Instructions
3-8
Increment/Decrement Instructions
Instruction
Symbol/Operand
Mnemonic
Code
INCREMENT
BINARY
++(590)
++
@++
590
Wd: Word
DOUBLE INCRE-
MENT BINARY
++L(591)
++L
@++L
591
Wd: Word
DECREMENT
BINARY
– –
– –
@– –
592
Wd: Word
DOUBLE DEC-
REMENT
– –
BINARY
– –L
@– –L
Wd: 1st word
593
INCREMENT
BCD
++B(594)
++B
@++B
594
Wd: Word
DOUBLE INCRE-
MENT BCD
++BL(595)
++BL
@++BL
595
Wd: 1st word
DECREMENT
BCD
– –
– –B
@– –B
596
Wd: Word
DOUBLE DEC-
REMENT BCD
– –
– –BL
@– –BL
597
Wd: 1st word
Increments the 4-digit hexadecimal content of the specified word by 1.
Wd
Wd
Increments the 8-digit hexadecimal content of the specified words by 1.
Wd
Wd+1
Decrements the 4-digit hexadecimal content of the specified word by 1.
(592)
Wd
Wd
Decrements the 8-digit hexadecimal content of the specified words by 1.
L(593)
Wd
Wd+1
Increments the 4-digit BCD content of the specified word by 1.
Wd
Increments the 8-digit BCD content of the specified words by 1.
Wd
Wd+1
Decrements the 4-digit BCD content of the specified word by 1.
B(596)
Wd
Decrements the 8-digit BCD content of the specified words by 1.
BL(597)
Wd
Wd+1
Function
Wd
Wd
Wd+1
Wd
Wd
Wd+1
Wd
Wd
Wd
Wd+1
Wd
–1
Wd
Wd
Wd+1
Section 3-8
Location
Execution
condition
Output
Required
Output
Required
Wd
Output
Required
Output
Required
Wd
Output
Required
Output
Required
Wd
Output
Required
Output
Required
Wd
93