Motorola MPC860 PowerQUICC User Manual page 158

Part II. PowerPC Microprocessor Module
provided for the convenience of the programmer and do not necessarily reßect the PowerPC
architecture speciÞcation.
Note that some of the instructions have the following optional features:
¥ CR UpdateÑThe dot (.) sufÞx on the mnemonic enables the update of the CR.
¥ Overßow optionÑThe o sufÞx indicates that the overßow bit in the XER is enabled.
6.2.4 PowerPC UISA Instructions
The PowerPC UISA includes the base user-level instruction set (excluding a few user-level
cache control, synchronization, and time base instructions), user-level registers,
programming model, data types, and addressing modes. This section discusses the
instructions deÞned in the UISA.
6.2.4.1 Integer Instructions
This section describes the integer instructions. These consist of the following:
¥ Integer arithmetic instructions
¥ Integer compare instructions
¥ Integer logical instructions
¥ Integer rotate and shift instructions
Integer instructions use the content of the GPRs as source operands and place results into
GPRs, into the XER, and into condition register (CR) Þelds.
6.2.4.1.1 Integer Arithmetic Instructions
Table 6-2 lists the integer arithmetic instructions for the MPC860.
Name
Add Immediate
Add Immediate Shifted
Add
Subtract From
Add Immediate Carrying
Add Immediate Carrying and Record
Subtract from Immediate Carrying
Add Carrying
Subtract from Carrying
Add Extended
Subtract from Extended
Add to Minus One Extended
6-8
Table 6-2. Integer Arithmetic Instructions
addi
addis
add (add.
subf (subf. subfo subfo.)
addic
addic.
subÞc
addc (addc. addco addco.)
subfc (subfc.
adde (adde.
subfe (subfe. subfeo subfeo.)
addme (addme. addmeo
MPC860 PowerQUICC UserÕs Manual
Mnemonic
addo addo.)
subfco subfco.)
addeo addeo.)
addmeo.)
Syntax
rD,rA,SIMM
rD,rA,SIMM
rD,rA,rB
rD,rA,rB
rD,rA,SIMM
rD,rA,SIMM
rD,rA,SIMM
rD,rA,rB
rD,rA,rB
rD,rA,rB
rD,rA,rB
rD,rA
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