SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 237

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

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Step5:
@@:
OpenFontMapTbl:
CloseFontMapTbl:
CharSet8:
SPC8106
411-1.0
STEP5 - Load Font. Load font into plane 2.
mov
call
mov
mov
mov
xor
mov
mov
rep
add
dec
jnz
mov
call
ret
DW
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S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
si, offset OpenFontMapTbl
RunTable
si,offset CharSet8; 8x8 font offset
ax,0A000h
es,ax
di,di
ax,256
cx,4
movsw
di,32-8
ax
@B
si, offset CloseFontMapTbl
RunTable
3C4h
3CEH
-1
3C4h
3CEH
-1
02h,04h
04h,07h
-1
05H,00h
06H,04h
-1
02h,03h
04h,02h
-1
05H,10h
06H,0Eh
-1
; estabilish planar addressing
; at A000h, enable plane 2 for write
; Set ES to Vram segment
; Set character count
; Set point count (4 WORDS)
; Transfer this character
; Next map entry
; Count character
; Do all characters
; estabilish text addressing again
; Sequencer.
; Graphics.
; End of table
; Sequencer.
; Graphics.
; End of table
X12-AN-003-02
Programming Notes and Examples
SP3-11