W741L250 Datasheet, PDF (82/86 Pages) Winbond – 4-BIT MICROCONTROLLER

W741L250
Instruction Set Table 2, continued
SUBR WR , #I
Subtract immediate data from WR
Machine Code:
00011111
I3 I2 I1 I0 W3 W2 W1 W0
Machine Cycle:
Operation:
Description:
Flag Affected:
XRL R, ACC
Machine Code:
1
ACC, WR ← (WR) - I
The immediate data I are binary subtracted from the contents of the WR
and the result is placed in the ACC and the WR.
CF & ZF
Exclusive OR R to ACC
00111000
0 R6 R5 R4 R3 R2 R1 R0
Machine Cycle:
Operation:
Description:
Flag Affected:
XRL WR, #I
Machine Code:
1
ACC ← (R) EX (ACC)
The contents of the data memory location addressed by R6 to R0 and the
ACC are exclusive-ORed and the result is loaded into the ACC.
ZF
Exclusive OR immediate data to WR
00111100
I3 I2 I1 I0 W3 W2 W1 W0
Machine Cycle:
Operation:
Description:
Flag Affected:
1
ACC ← (WR) EX I
The contents of the Working Register (WR) and the immediate data I are
exclusive-ORed and the result is loaded into the ACC.
ZF
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