Zilog EZ80F916 - Manual (Page 366)

eZ80
®
CPU
User Manual
UM007715-0415 CPU Instruction Set
357
SUB A, (HL)
Subtract without Carry
Operation
A  A–(HL)
Description
The (HL) operand is an 8-bit value at the memory location specified by the contents of the
multibyte register (HL). This 8-bit value is subtracted from the contents of the accumula-
tor, A. The result is written to the accumulator.
Condition Bits Affected
Attributes
S
Set if result is negative; reset otherwise.
Z
Set if result is 0; reset otherwise.
H
Set if borrow from bit 4; reset otherwise.
P/V
Set if overflow; reset otherwise.
N
Set.
C
Set if borrow; reset otherwise.
Mnemonic Operand ADL Mode Cycle Opcode (hex)
SUB
A,(HL) X 2
96
SUB
.S A,(HL) 1 3
52, 96
SUB
.L A,(HL) 0 3
49, 96