ST20-GP1 datasheet(42/116 Pages) STMICROELECTRONICS

номер детали	ST20-GP1

подробное описание детали	GPS PROCESSOR

PDF	116 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

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ST20-GP1

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Memory

code

Mnemonic

Processor

cycles

Name

Notes

27F3

cﬂerr

check ﬂoating point error

29FC

fptesterr

load value true (FPU not present)

26F3

unpacksn

unpack single length ﬂoating point number

26FD

roundsn

round single length ﬂoating point number

26FC

postnormsn

7 to 8

post-normalize correction of single length ﬂoat-

ing point number

27F1

ldinf

load single length inﬁnity

Table 6.16 Floating point support operation codes

Memory

code

Mnemonic

Processor

cycles

Name

Notes

2CF7

cir

2 to 4

check in range

A, E

2CFC

ciru

2 to 4

check in range unsigned

A, E

2BFA

2 to 3

check byte

A, E

2BFB

cbu

2 to 3

check byte unsigned

A, E

2FFA

2 to 3

check sixteen

A, E

2FFB

csu

2 to 3

check sixteen unsigned

A, E

2FF8

xsword

sign extend sixteen to word

2BF8

xbword

sign extend byte to word

Table 6.17 Range checking and conversion instructions

Memory

code

Mnemonic

Processor

cycles

Name

Notes

2CF1

ssub

sixteen subscript

2CFA

load sixteen

2CF8

store sixteen

2BF9

lbx

load byte and sign extend

2FF9

lsx

load sixteen and sign extend

Table 6.18 Indexing/array instructions

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