ST20-C1 STMICROELECTRONICS [STMicroelectronics], ST20-C1 Datasheet - Page 28
ST20-C1
Manufacturer Part Number
ST20-C1
Description
Instruction Set Reference Manual
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST20-C1.pdf
(205 pages)
- Current page: 28 of 205
- Download datasheet (842Kb)
3.4 Instruction encoding
which is in turn encoded with the sequence:
3.4.5
The encoding mechanism has important consequences.
To aid clarity and brevity, prefix sequences and the use of opr are not explicitly shown
in this guide. Each instruction is represented by a mnemonic, and for primary instruc-
tions an item of data, which stands for the appropriate instruction component
sequence. Hence the examples above would be just shown as: ldc 17 , add , and and .
Where appropriate, an expression may be placed in a code sequence to represent the
code needed to evaluate that expression.
28/205
pfix F; opr 9
Summary of encoding
It produces very compact code.
It simplifies language compilation, by providing a completely uniform way of
allowing a primary instruction to take an operand of any size up to the proces-
sor word-length.
It allows these operands to be represented in a form independent of the word-
length of the processor.
It enables any number of secondary instructions to be implemented.
Related parts for ST20-C1
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
ST20 software development and debugging tools
Manufacturer:
STMICROELECTRONICS [STMicroelectronics]
Datasheet:
Part Number:
Description:
C++ preprocessor for ST20 and T4/T8 transputers
Manufacturer:
STMICROELECTRONICS [STMicroelectronics]
Datasheet:
Part Number:
Description:
PC PARALLEL PORT TO JTAG INTERFACE
Manufacturer:
STMICROELECTRONICS [STMicroelectronics]
Datasheet:
Part Number:
Description:
PC PARALLEL PORT TO OS-LINK INTERFACE
Manufacturer:
STMICROELECTRONICS [STMicroelectronics]
Datasheet:
Part Number:
Description:
Gps Processor
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
Gps Processor
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
THYRISTORS
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
ADJUSTABLE INVERTING NEGATIVE OUTPUT CURRENT MODE PWM REGULATORS
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
0.25A SCRs
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
0.8A SCRs
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
Smartcard MCU With 4 additional I/0
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
SERIAL 2K (256 x 8) EEPROM
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
Search -----> STP10NB50FP
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
Search ---> STP12NB30
Manufacturer:
ST Microelectronics
Datasheet:
Part Number:
Description:
Search -----> STP13NK50Z
Manufacturer:
ST Microelectronics
Datasheet: