8XC196MC, MD, MH USER’S MANUAL

 

Table A-7. Instruction Opcodes (Continued)

Hex Code

Instruction Mnemonic

 

 

F0

RET

F2

PUSHF

F3

POPF

F4

PUSHA

F5

POPA

F6

IDLPD

F7

TRAP

F8

CLRC

F9

SETC

FA

DI

FB

EI

FC

CLRVT

FD

NOP

FE

DIV/DIVB/MUL/MULB (Note 2)

FF

RST

NOTES:

1.This opcode is reserved, but it does not generate an unimplemented opcode interrupt.

2.Signed multiplication and division are two-byte instructions. For each signed instruction, the first byte is “FE” and the second is the opcode of the corresponding unsigned instruction. For example, the opcode for MULU (3 operands) direct is “4C,” so the opcode for MUL (3 oper- ands) direct is “FE 4C.”

A-46

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Intel 8XC196MD, 8XC196MH, 8XC196MC manual DIV/DIVB/MUL/MULB Note