W741E260 Datasheet, PDF (90/94 Pages) Winbond – 4-BIT FLASH MICROCONTROLLER

W741E260
Instruction Set Table 2, continued
STOP
Enter the STOP mode
Machine Code:
Machine Cycle:
Operation:
Description:
00000000
11000000
1
STOP oscillator
Device enters STOP mode. When the falling edge signal of RC port is
accepted, the µC will wake up and execute the next instruction.
SUB R, ACC
Subtract ACC from R
Machine Code:
Machine Cycle:
Operation:
Description:
0 0011010
0 R6 R5 R4 R3 R2 R1 R0
1
ACC ← (R) - (ACC)
The contents of the ACC are binary subtracted from the contents of the data
memory location addressed by R6 to R0 and the result is loaded into the
ACC.
Flag Affected:
CF & ZF
SUB WR , #I
Subtract immediate data from WR
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
00011110
I3 I2 I1 I0 W3 W2 W1 W0
1
ACC ← (WR) - I
The immediate data I are binary subtracted from the contents of the WR
and the result is loaded into the ACC.
CF & ZF
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