W741C260 Datasheet, PDF (83/92 Pages) Winbond – 4-BIT MICROCONTROLLER

W741C260
Instruction Set Table 2, continued
SBCR R, ACC
Subtract ACC from R with Borrow
Machine Code:
0 0001011
0 R6 R5 R4 R3 R2 R1 R0
Machine Cycle:
Operation:
Description:
Flag Affected:
SBCR WR, #I
1
ACC, R ← (R) - (ACC) - (CF)
The contents of the ACC and CF are binary subtracted from the contents of
the data memory location addressed by R6 to R0 and the result is placed in
the ACC and the data memory.
CF & ZF
Subtract immediate data from WR with Borrow
Machine Code:
00001111
I3 I2 I1 I0 W3 W2 W1 W0
Machine Cycle:
Operation:
Description:
Flag Affected:
SET CF
1
ACC, R ← (WR) - I - (CF)
The immediate data I and CF are binary subtracted from the contents of
the WR and the result is placed in the ACC and the WR.
CF & ZF
Set CF
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
01010000
01000000
1
Set CF
Set Carry Flag to 1.
CF
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Publication Release Date: March 1998
Revision A3