Zilog EZ80F916 - Manual (Page 338)

eZ80
®
CPU
User Manual
UM007715-0415 CPU Instruction Set
329
SBC A, (HL)
Subtract with Carry
Operation
A  A–(HL)–C
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 and the Carry Flag (C) are subtracted from the
contents of the accumulator, 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)
SBC
A,(HL) X 2
9E
SBC
.S A,(HL) 1 3
52, 9E
SBC
.L A,(HL) 0 3
49, 9E