SAFC161RI datasheet(26/60 Pages) SIEMENS

26 / 60 page

Semiconductor Group

1998-05-01

C161RI

Instruction Set Summary

The table below lists the instructions of the C161RI in a condensed way.

The various addressing modes that can be used with a specific instruction, the operation of the

instructions, parameters for conditional execution of instructions, and the opcodes for each

instruction can be found in the “C166 Family Instruction Set Manual”.

This document also provides a detailed description of each instruction.

Instruction Set Summary

Mnemonic

Description

Bytes

ADD(B)

Add word (byte) operands

2 / 4

ADDC(B)

Add word (byte) operands with Carry

2 / 4

SUB(B)

Subtract word (byte) operands

2 / 4

SUBC(B)

Subtract word (byte) operands with Carry

2 / 4

MUL(U)

(Un)Signed multiply direct GPR by direct GPR (16-16-bit)

DIV(U)

(Un)Signed divide register MDL by direct GPR (16-/16-bit)

DIVL(U)

(Un)Signed long divide reg. MD by direct GPR (32-/16-bit)

CPL(B)

Complement direct word (byte) GPR

NEG(B)

Negate direct word (byte) GPR

AND(B)

Bitwise AND, (word/byte operands)

2 / 4

OR(B)

Bitwise OR, (word/byte operands)

2 / 4

XOR(B)

Bitwise XOR, (word/byte operands)

2 / 4

BCLR

Clear direct bit

BSET

Set direct bit

BMOV(N)

Move (negated) direct bit to direct bit

BAND, BOR, BXOR

AND/OR/XOR direct bit with direct bit

BCMP

Compare direct bit to direct bit

BFLDH/L

Bitwise modify masked high/low byte of bit-addressable

direct word memory with immediate data

CMP(B)

Compare word (byte) operands

2 / 4

CMPD1/2

Compare word data to GPR and decrement GPR by 1/2

2 / 4

CMPI1/2

Compare word data to GPR and increment GPR by 1/2

2 / 4

PRIOR

Determine number of shift cycles to normalize direct

word GPR and store result in direct word GPR

SHL / SHR

Shift left/right direct word GPR

ROL / ROR

Rotate left/right direct word GPR

ASHR

Arithmetic (sign bit) shift right direct word GPR

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