Atari 400 - Page 278

276 User's Ha ndb ook to the Atari 400/ 800 Computers
Table 9-7 (cont.) Characters Displayed by COLOR
Statement Values in Graphics Mode 0
COLOR Value
COLOR Value
CO LOR Value
Character Normal/Inverse
Character
Norm a l/ In verse Character
Normal/Inverse
IT]
105 /233
GJ
11 4/ 242
00
12312 51
OJ
106 /23 4
GJ
11 5/ 243
OJ
1241252
CO
1071235
IT]
11 6/ 244
el r scrn 1251---
m
108 /236
GJ
11 7/ 245
![]
126/ 2 54
B
1091237
0
118/ 246
[i]
127/ 255
0
110 /2 38
EI
119/ 24 7
EOL
- -- / 1 55
0
1 11 / 239
GJ
1201248
~
--- / 253
0
112/ 240
II]
1211249
EQ
11 312 41
0
1 22/2 50
The COLOR st atement works in much the sa me fashion in
graphics modes 1 and 2. However, there are two important
diff erences in the u se of the COLOR statement in graphics
modes 1 and 2 as opposed to graphi cs mode O.
First of all, two different char a cter sets can be displayed--the
standard character set a nd alt ernat ive character set. These are
depicted in T ab le 9-4. The standard character set is act ive upon
pow er -o n, w hen the System Re se t key is pressed, or when a
GRAPHIC S state men t is ex ecuted . POKE 756,226 w ill se l ect the
alternate character set, w hil e POKE 756,224 wi ll return to the
standard character set.
The second ma
jor difference betwee n the use of the COLOR
statement in grap hi cs mode 1 and 2 a nd graphics mode 0 is that in
graphics m ode 1 and 2, the characters can be produced us ing
SETCOLOR registers 0, 1, 2, or 3. This makes it possible to
pr od uce each character using anyo ne of four different co lors.
Notice in Table 9-4 that different COLOR statement parameters
are used to
se l ect the SETCOLOR register.