W741C260 Datasheet, PDF (81/92 Pages) Winbond – 4-BIT MICROCONTROLLER

W741C260
Instruction Set Table 2, continued
ORLR WR , #I
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:
Machine Cycle:
Operation:
Description:
Flag Affected:
RRC
R
01001100
1 R6 R5 R4 R3 R2 R1 R0
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
Rotate Right R with CF
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
01001101
1 R6 R5 R4 R3 R2 R1 R0
1
ACC.n, R.n ← R.n+1; ACC.3, R.3 ← CF; CF ← R.0
The contents of the ACC and the data memory location addressed by R6 to
R0 are rotated right one bit, bit 0 is rotated into CF, and CF is rotated into
bit 3 (MSB). The same contents are loaded into the ACC.
CF & ZF
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Publication Release Date: March 1998
Revision A3