Zilog Z16F2810 Manual do Utilizador descarregar pdf (Página 179)

UM018809-0611 SRAX Instruction

ZNEO

CPU Core

User Manual

163

Flags

Flags are set based on the 32-bit destination register value.

Syntax and Opcodes

Example

Before:

R7=8F37_B2D3H (1000_1111_0011_0111_1011_0010_1101_0011B), R8=4

SRAX R7, R8 ;Object code: 0007 B487

After:

R7=F8F3_7B2DH (1111_1000_1111_0011_0111_1011_0010_1101B),

R8=3000_0000H (0011_0000_0000_0000_0000_0000_0000_0000B), Flags S, V=1; C,

Z, B=0

76543210

C Z S V B CIRQE IRQE

* * * *0–––

Legend

C = Set to 1 if the last bit shifted out of the destination register is 1; otherwise set to 0.

Z = Set to 1 if the 32-bit destination register contains zero; otherwise set to 0.

S = Set to 1 if bit [31] of the destination register is 1; otherwise set to 0.

V = Set to 1 if the Carry and Sign flags are different; otherwise set to 0.

B = Cleared to 0.

CIRQE = No change.

IRQE = No change.

Instruction, Operands

Extend

Prefix Word 0 Word 1 Word 2

SRAX Rd, Rs 0007H {B4H, Rs, Rd}

Note:

1 2 ... 174 175 176 177 178 179 180 181 182 183 184 ... 215 216

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