GMS34004 Datasheet, PDF (43/105 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 3. Instruction
(32) YNEA
Naming :
Status :
Format :
Function :
<Purpose>
<Comment>
(33) YNEI
Naming :
Status :
Format :
Operand :
Function :
<Comment>
Y-Register Not Equal Accumulator
Comparison results to status
¥°
Y ¡Á A
ST ¡ç 1 (when Y ¡Á A)
ST ¡ç 0 (when Y = A)
Data of Y-register and accumulator are compared to check if
they are not equal.
Data of the Y-register and accumulator are logically compared.
Results are transferred to the status. Unless they are equal,
the status is set.
Y-Register Not Equal Immediate
Comparison results to status
¥²
Constant 0 ¡Â i ¡Â 15
Y ¡Á i
ST ¡ç 1 (when Y ¡Á i)
ST ¡ç 0 (when Y = i)
The constant of the Y-register is logically compared with 4bit
operand. Results are transferred to the status. Unless the
operand is equal to the constant, the status is set.
(34) KNEZ
Naming :
Status :
Format :
Function :
<Purpose>
<Comment>
(35) RNEZ
Naming :
Status :
Format :
Function :
<Purpose>
<Comment>
K Not Equal Zero
The status is set only when not equal
¥°
When K ¡Á 0, ST ¡ç 1
A test is made to check if K is not zero.
Data on K are compared with zero. Results are transferred to
the status. For input data not equal to zero, the status is set.
R Not Equal Zero
The status is set only when not equal
¥°
When R ¡Á 0, ST ¡ç 1
A test is made to check if R is not zero.
Data on R are compared with zero. Results are transferred to
the status. For input data not equal to zero, the status is set.
3 - 16