1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
;*
;** VTech Creativision Definitions
;*
;** Screen
SCREEN_ROWS = 24
SCREEN_COLS = 32
SCREEN_PTR = $3A
CURSOR_X = $3C
CURSOR_Y = $3D
;** VDP
VDP_DATA_R = $2000
VDP_STATUS_R = $2001
VDP_DATA_W = $3000
VDP_CONTROL_W = $3001
;** PIA
PIA0_DATA = $1000
PIA0_STATUS = $1001
PIA1_DATA = $1002
PIA1_STATUS = $1003
;** General
CH_VLINE = 33
CH_HLINE = 34
CH_ULCORNER = 35
CH_URCORNER = 36
CH_LLCORNER = 37
CH_LRCORNER = 38
;** I/O (Zero-page variables)
ZP_KEYBOARD = $10
ZP_JOY0_DIR = $11
ZP_JOY1_DIR = $13
ZP_JOY0_BUTTONS = $16
ZP_JOY1_BUTTONS = $17
;** Joystick direction values (ZP_JOY0_DIR/ZP_JOY1_DIR)
JOY_N = $49
JOY_NNE = $48
JOY_NE = $47
JOY_ENE = $46
JOY_E = $45
JOY_ESE = $44
JOY_SE = $43
JOY_SSE = $42
JOY_S = $41
JOY_SSW = $40
JOY_SW = $4F
JOY_WSW = $4E
JOY_W = $4D
JOY_WNW = $4C
JOY_NW = $4B
JOY_NNW = $4A
;** BIOS
BIOS_IRQ1_ADDR = $FF3F
BIOS_IRQ2_ADDR = $FF52
BIOS_NMI_RESET_ADDR = $F808
BIOS_WRITE_VDP_REG = $FE1F
|
