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ST20C2 Datasheet(PDF) 98 Page - STMicroelectronics

Part # ST20C2
Description  Instruction Set Reference Manual
PDF  212 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST20C2 Datasheet(HTML) 98 Page - STMicroelectronics

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background image
lbx
®
98/212
lbx
load byte and sign extend
Code: 2B F9
Description: Load the byte addressed by Areg into Areg and sign extend to a word.
Definition:
Areg
′
0..7
← byte[Areg]
Areg
′
8..BitsPerWord-1 ←
Areg
′
7
Error signals: none
Comments:
Secondar y instruction.
See also:
bsub devlb lb xbword lsx ldul



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