ST10F296 datasheet(96/346 Pages) STMICROELECTRONICS

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Central processing unit (CPU)

ST10F296E

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7.3

MAC coprocessor specific instructions

Table 46 lists the MAC instructions of the ST10F296E. A detailed description of each

instruction can be found in the ST10 family programming manual (PM0036). Note that all

MAC instructions are encoded on four bytes.

Table 46.

MAC instruction set summary

Mnemonic

Description

CoABS

Absolute value of the accumulator

CoADD(2)

Addition

CoASHR(rnd)

Accumulator arithmetic shift right and optional round

CoCMP

Compare accumulator with operands

CoLOAD(-,2)

Load accumulator with operands

CoMAC(R,u,s,-,rnd)

(Un)signed/(un)signed multiply-accumulate and optional round

CoMACM(R)(u,s,-,rnd)

(Un)signed/(un)signed multiply-accumulate with parallel data move

and optional round

CoMAX/CoMIN

Maximum/minimum of operands and accumulator

CoMOV

Memory to memory move

CoMUL(u,s,-,rnd)

(Un)signed/(un)signed multiply and optional round

CoNEG(rnd)

Negate accumulator and optional round

CoNOP

No-operation

CoRND

Round accumulator

CoSHL/CoSHR

Accumulator logical shift left/right

CoSTORE

Store a MAC unit register

CoSUB(2,R)

Substraction

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