Text2 Mode - Yamaha V9938 Programmer's Manual

3.2. TEXT2 mode

Characteristics
Pattern size (w*h)
Patterns
Screen size (w*h)
Pattern colors
VRAM area per screen
Controls
Pattern font
Screen pattern location
Pattern color code 1
Pattern color code 0
Background color code
Blinking pattern color
code 1
Blinking pattern color
code 0
Mode flags
Bit
Value
Other flags
LN bit of R#9
MSX system default values
BASIC SCREEN number
0, width 41 ... 80
© 1985 ASCII CORP. / NIPPON GAKKI CO.
6 dots * 8 dots
256 types
80 * 24 patterns if LN bit of R#9 set to 0
80 * 26.5 patterns if LN bit of R#9 set to 1
Two colors out of 512 (per screen), four if using blinking
8K bytes
VRAM pattern generator table
VRAM pattern name table
High-order four bits of R#7
Low-order four bits of R#7
Low-order four bits of R#7
High-order four bits of R#12
Low-order four bits of R#12
M5 (R#0) M4 (R#0)
0 1
0: 24 lines displayed
1: 26.5 lines displayed
Pattern generator
01000h ... 017FFh
Page 29 of 108
M3 (R#0) M2 (R#1)
0
Pattern layout
00000h ... 0077Fh
00000h ... 0086Fh
© 2010-2015 Eugeny Brychkov
M1 (R#1)
0 1
Pattern color table
00800h ... 008EFh
00800h ... 0090Dh