ST20-C1 datasheet(174/205 Pages) STMICROELECTRONICS

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Instruction set summary

This appendix gives a full listing of all the instructions and instruction components,

both in function code and alphabetical order. The ‘Memory’ column gives, in hexadec-

imal, the bytes that appear in memory. For primary instructions, this includes a data

value, which is represented by

B.1

Function code order

B.1.1 Primary instructions

Code

Memory

Mnemonic

Name

nj n

jump

ldlp n

load local pointer

npfix n

prefix

ldnl n

load non-local

ldc n

load constant

ldnlp n

load non-local pointer

nnfix n

negative prefix

ldl n

load local

adc n

add constant

fcall n

function call

ncj n

conditional jump

ajw n

adjust work space

eqc n

equals constant

stl n

store local

stnl n

store non-local

opr n

operate

B.1.2 Secondary instructions

Code

Memory

Mnemonic

Name

rev

reverse

dup

duplicate

rot

rotate stack

arot

anti-rotate stack

add

sub

subtract

mul

multiply

wsub

word subscript

not

bitwise not

and

shl

shift left

shr

shift right

jab

jump absolute

timeslice

breakpoint

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