Infineon Technologies C166S V2 User Manual page 317

CoABS
Group
Syntax
Source Operand(s)
Destination Operand(s)
Operation
(ACC) ← Abs((op2) || (op1))
Description
Computes the absolute value of a 40-bit source operand and loads the result in the
40-bit ACC register. The 40-bit operand is a sign-extended result of the concatenation
of the two source operands op1 (LSW) and op2 (MSW).
MAC Flags
MV MSL
0 *
MV Always cleared.
MSL Set if the contents of ACC is automatically saturated. Not affected
otherwise.
ME Set if the MAE is used. Cleared otherwise.
MSV Not affected.
MC Always cleared.
MZ Set if result equals zero. Cleared otherwise.
MN Set if the most significant bit of the result is set. Cleared otherwise.
Encoding
Mnemonic
CoABS Rw
CoABS Rw
CoABS [IDXi*] , [Rw
User Manual
Absolute Value
Arithmetic Instructions
CoABS op1, op2
op1, op2 → WORD
ACC → 40-bit signed value
ME MSV
* -
, Rw
n m
, [Rw *]
n m
*]
m
Detailed Instruction Description
MC MZ
0 *
Format
A3 nm CA rrr0:0000
83 nm CA rrr0:0qqq
93 Xm CA rrr0:0qqq
8-317
User Manual
C166S V2
CoABS
MN Sat.
* yes
Bytes
4
4
4
V 1.7, 2001-01