W741L250 Datasheet, PDF (75/86 Pages) Winbond – 4-BIT MICROCONTROLLER

W741L250
Instruction Set Table 2, continued
ORLR R, ACC
OR R to ACC
Machine Code:
00111011
0 R6 R5 R4 R3 R2 R1 R0
Machine Cycle:
Operation:
Description:
Flag Affected:
ORLR WR , #I
1
ACC, R ← (R) ∧ (ACC)
The contents of the data memory location addressed by R6 to R0 and the
ACC are ORed and the result is placed in the data memory and the ACC.
ZF
OR immediate data to WR
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
RLC
R
00111111
I3 I2 I1 I0 W3 W2 W1 W0
1
ACC, WR ← (WR) ∧ I
The contents of the Working Register (WR) and the immediate data I are
ORed and the result is placed in the WR and the ACC.
ZF
Rotate Left R with CF
Machine Code:
01001100
1 R6 R5 R4 R3 R2 R1 R0
Machine Cycle:
Operation:
Description:
Flag Affected:
1
ACC.n, R.n ← R.n-1; ACC.0, R.0 ← CF; CF ← R.3
The contents of the ACC and the data memory location addressed by R6 to
R0 are rotated left one bit, bit 3 is rotated into CF, and CF rotated into bit 0
(LSB). The same contents are loaded into the ACC.
CF & ZF
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Publication Release Date: March 1998
Revision A2