GMS30004 Datasheet, PDF (43/158 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
é^{Comparison results to status}
YóA
ST à 1 (when Y ó A)
ST à 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
ë^{Comparison results to status}
Constant 0 õ i õ 15
Yói
ST à 1 (when Y ó i)
ST à 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
é^{The status is set only when not equal}
When K ó 0, ST à 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
é^{The status is set only when not equal}
When R ó 0, ST à 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.
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