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ST486DX Scheda tecnica(PDF) 32 Page - STMicroelectronics

Il numero della parte ST486DX
Spiegazioni elettronici  PROGRAMMING MANUAL
PDF  34 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST486DX Scheda tecnica(HTML) 32 Page - STMicroelectronics

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ST486DX - ASSEMBLER MACROS FOR SGS-THOMSON INSTRUCTIONS
46
count=count+1
endif
if
(count eq 0)
nop
;expanding the opcode one byte
endif
place1
= $
;pull off the proper prefix byte count
mov
word ptr segover addr,reg
org
place1+count
mov
word ptr segover addr,reg
place2
= $
;patch the opcode
org
place1+(count*2)-1
db
0Fh,op
org
place2
ENDM
;Offset Definition for access into SMM space
SMI_SAVE STRUC
$ESIEDI
DD
?
$IOWDATA
DD
?
$IOWADDR
DW
?
$IOWSIZE
DW
?
$BITS
DD
?
$CSSELL
DD
?
$CSSELH
DD
?
$CS
DW
?
$RES1
DW
?
$NEXTIP
DD
?
$CURRENTIP
DD
?
$CR0
DD
?
$EFLAGS
DD
?
$DR7
DD
?
SMI_SAVE ENDS
SMI_ESIEDI
EQU
($ESIEDI + SMMSIZE - SIZE SMI_SAVE)
SMI_IOWDATA
EQU
($IOWDATA+ SMMSIZE - SIZE SMI_SAVE)
SMI_IOWADDR
EQU
($IOWADDR+ SMMSIZE - SIZE SMI_SAVE)
SMI_IOWSIZE
EQU
($IOWSIZE+ SMMSIZE - SIZE SMI_SAVE)
SMI_BITS
EQU
($BITS
+ SMMSIZE - SIZE SMI_SAVE)
SMI_CSSELL
EQU
($CSSELL + SMMSIZE - SIZE SMI_SAVE)
SMI_CSSELH
EQU
($CSSELH + SMMSIZE - SIZE SMI_SAVE)
SMI_CS
EQU
($CS
+ SMMSIZE - SIZE SMI_SAVE)
SMI_RES1
EQU
($RES1
+ SMMSIZE - SIZE SMI_SAVE)
SMI_NEXTIP
EQU
($NEXTIP + SMMSIZE - SIZE SMI_SAVE)
SMI_CURRENTIP
EQU
($CURRENTIP+ SMMSIZE -SIZE SMI_SAVE)



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