NSC800 datasheet(41/76 Pages) NSC

41 / 76 page

126 8-Bit Arithmetic (Continued)

76543210

10010110

SUB (HL)

Timing

M cycles2

T states7 (4 3)

Addressing Mode

SourceRegister Indirect

DestinationImplied

43210

SUB (IX a d) (for NXe0)

11NX 11101

SUB (IY a d) (for NXe1)

10110

Timing

M cycles5

T states19 (4 4 3 5 3)

Addressing Mode

SourceIndexed

DestinationImplied

SBC

A m1

Subtract with carry the contents of memory location m1

from the Accumulator

w A b m1 b CY

S Set if result is negative

Z Set if result is zero

H Set if carry from bit 3

PV Set if result exceeds 8-bit 2’s

complement range

N Set

C Set according to borrow

condition

76543210

10011110

SBC A (HL)

Timing

M cycles2

T states7 (4 3)

Addressing Mode

SourceRegister Indirect

DestinationImplied

43210

SBC A (IX a d) (for NXe0)

11NX 11101

SBC A (IY a d) (for NXe1)

11110

Timing

M cycles5

T states19 (4 4 3 5 3)

Addressing Mode

SourceIndexed

DestinationImplied

AND

The data in memory location m1 is logically AND’ed to the

Accumulator

w A

S Set if result is negative

Z Set if result is zero

H Set

PV Set if result parity is even

N Reset

C Reset

76543210

10100110

AND (HL)

Timing

M cycles2

T states7 (4 3)

Addressing Mode

SourceRegister Indirect

DestinationImplied

43210

AND (IX a d) (for NXe0)

11NX 11101

AND (IY a d) (for NXe1)

00110

Timing

M cycles5

T states19 (4 4 3 5 3)

Addressing Mode

SourceIndexed

DestinationImplied

The data in memory location m1 is logically OR’ed with the

Accumulator

w A

S Set if result is negative

Z Set if result is zero

H Reset

PV Set if result parity is even

N Reset

C Reset

76543210

10110110

OR (HL)

Timing

M cycles2

T states7 (4 3)

Addressing Mode

SourceRegister Indexed

DestinationImplied

43210

OR (IX a d) (for NXe0)

11NX 11101

OR (IY a d) (for NXe1)

10110

Timing

M cycles5

T states19 (4 4 3 5 3)

Addressing Mode

SourceIndexed

DestinationImplied

NSC800 Datasheet(PDF) 41 Page - National Semiconductor (TI)

NSC800 Datasheet(HTML) 41 Page - National Semiconductor (TI)

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