SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 273
SPC8106
Manufacturer Part Number
SPC8106
Description
LCD/CRT VGA CONTROLLER
Manufacturer
S-MOS Systems
Datasheet
1.SPC8106.pdf
(432 pages)
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MergeMisc:
MergeDelay:
@@:
MergeSync:
@@:
@@:
MergeHW:
@@:
SPC8106
411-1.0
MOV
CALL
AND
OR
CALL
JMP
MOV
JMP
LOOP
JMP
MOV
IN
MOV
TEST
JZ
MOV
IN
TEST
JZ
IN
TEST
JNZ
JMP
CMP
JNE
IN
MOV
JMP
CMP
JE
OUT
INC
S-MOS Systems, Inc. • Tel: (408) 922-0200 • Fax: (408) 922-0238 • http://www.smos.com
AH,AL
ReadAuxReg
AL,CS:[SI+0]
AL,CS:[SI+1]
WriteAuxReg
SHORT NextRegister
CX,3000h
$+2
@B
SHORT MergeNext
DX,3CCH
AL,DX
DX,3BAH
AL,1
@F
DX,3DAH
AL,DX
AL,00001000b
@B
AL,DX
AL,00001000b
@B
SHORT MergeNext
DL,3CCh-300h
@F
AL,DX
DL,3C2h-300h
SHORT MergeMask
AL,0FFH
MergeRead
DX,AL
DX
; save index in AH
; Turn off unrequired bits
; Turn on required bits
; AH=index, AL = DATA
; recommended delay loop
; assume 3BA
; correct?
; yes, jump
; no, dx = 3DAH
; AL=Input Status 1 Data
; Vertical Retrace?
; no then wait til start
; AL=Input Status 1 Data
; Vertical Retrace?
; yes then wait til end
; MOR?
; no then bypass
; AL=Register Value
; Select 3C2 as write
; valid index?
; no, jump
; Update Index
; Select Register Data
X12-AN-003-02
Programming Notes and Examples
SP3-47
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