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ST20-GP1 Datasheet(PDF) 36 Page - STMicroelectronics

Part # ST20-GP1
Description  GPS PROCESSOR
PDF  116 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST20-GP1 Datasheet(HTML) 36 Page - STMicroelectronics

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6.3
Instruction set tables
Function
code
Memory
code
Mnemonic
Processor
cycles
Name
Notes
0
0X
j
7
jump
D, T
1
1X
ldlp
1
load local pointer
2
2X
pfix
0 to 3
prefix
3
3X
ldnl
1
load non-local
4
4X
ldc
1
load constant
5
5X
ldnlp
1
load non-local pointer
6
6X
nfix
0 to 3
negative prefix
7
7X
ldl
1
load local
8
8X
adc
2 to 3
add constant
O
9
9X
call
8
call
A
AX
cj
1 or 7
conditional jump
B
BX
ajw
2
adjust workspace
C
CX
eqc
1
equals constant
D
DX
stl
1
store local
E
EX
stnl
2
store non-local
F
FX
opr
0
operate
Table 6.3 Primary functions
Memory
code
Mnemonic
Processor
cycles
Name
Notes
22FA
testpranal
1
test processor analyzing
23FE
saveh
3
save high priority queue registers
23FD
savel
3
save low priority queue registers
21F8
sthf
1
store high priority front pointer
25F0
sthb
1
store high priority back pointer
21FC
stlf
1
store low priority front pointer
21F7
stlb
1
store low priority back pointer
25F4
sttimer
2
store timer
2127FC
lddevid
1
load device identity†
27FE
ldmemstartval
1
load value of MemStart address
†See Section 22
Table 6.4 Processor initialization operation codes



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