Cirrus Logic EP93 Series User Manual page 117

32-bit Integer Multiply-Subtract from Accumulator
31:28 27:24
cond 1 1 1 0
Description:
Multiplies two 32-bit integers, subtracts the product from an accumulator, and
stores the result in an accumulator:
Mnemonic:
CFMSUBA32<cond> CRa, CRd, CRn, CRm
Bit Definitions:
CRa:
CRd:
CRn:
CRm:
DS785UM1
23:22 21:20 19:16
0 0 1 1 CRn
×
CRa = CRd - (CRn CRm)
Destination accumulator
Specifies minuend accumulator
Multiplicand register
Multiplicand register
Copyright 2007 Cirrus Logic
MaverickCrunch Co-Processor
15:12 11:8
CRd 0 1 1 0 CRa
EP93xx User's Guide
7:5 4 3:0
0 CRm
3-47
3