Zilog Z80380 Manual de usuario descargar pdf (Pagina 116)

5-82

Z380

™

USER'S MANUAL

DC-8297-03

ZILOG

LOAD ACCUMULATOR

LD dst,src dst = A

src = R, RX, IM, IR, DA, X

dst = R, RX, IR, DA, X

src = A

Operation: dst ← src

The contents of the source are loaded into the destination.

Flags: S: Unaffected

Z: Unaffected

H: Unaffected

V: Unaffected

N: Unaffected

C: Unaffected

Load into Accunulator

Addressing Execute

Mode Syntax Instruction Format Time Note

R: LD A,R 01111-r- 2

RX: LD A,RX 11y11101 0111110w 2

IM: LD A,n 00111110 ——n— 2

IR: LD A,(HL) 01111110 2+r

LD A,(IR) 000a1010 2+r

DA: LD A,(nn) 00111010 -n(low)- -n(high) 3+r I

X: LD A,(XY+d) 11y11101 01111110 ——d— 4+r I

Load from Accunulator

Addressing Execute

Mode Syntax Instruction Format Time Note

R: LD Rd,A 01-r-111 2

RX: LD RX,A 11y11101 0110w111 2

IR: LD (HL),A 01110111 3+w

LD (IR),A 000a0010 3+w

DA: LD (nn),A 00110010 -n(low)- -n(high) 4+w I

X: LD (XY+d),A 11y11101 01110111 ——d— 5+w I

Field Encodings: r: per convention

y: 0 for IX, 1 for IY

w: 0 for high byte, 1 for low byte

a: 0 for BC, 1 for DE

1 2 ... 111 112 113 114 115 116 117 118 119 120 121 ... 267 268

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Zilog Z80380 Manual de usuario Pagina 116