SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 265

• Manufacturer Part Number: SPC8106
• Description: LCD/CRT VGA CONTROLLER
• Manufacturer: S-MOS Systems

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Step5:
@@:
AttribTable:
SPC8106
STEP5 - Program Attribute controller.
Reset Index/Data Flip Flop of Attribute controller.
Write attributes information.
411-1.0
mov
in
mov
mov
mov
mov
mov
out
inc
lodsb
out
loop
mov
mov
out
ret
db
db
db
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dx, 3DAh
al, dx
si, offset AttribTable
dx, 3C0h
cx, 14h
bx, 0h
ax, bx
dx, al
bx
dx, al
@B
al, 20h
dx, 3C0h
dx, al
00h, 01h, 02h, 03h, 04h, 05h, 06h, 07h
08h, 09h, 0Ah, 0Bh, 0Ch, 0Dh, 0Eh, 0Fh
41h, 00h, 0Fh, 00h, 00h
; al = enable palette bit
; enable palette
; Set attributes register to index.
;
;
; Write to 14h registers.
; Use BX as the index counter.
; Set the next index.
;
;
; Read the next byte.
; Write the next data.
X12-AN-003-02
Programming Notes and Examples
SP3-39