Mayhem, 00-00-00
THE V9958-REGISTERS
=====================
VDP() REG b7 b6 b5 b4 b3 b2 b1 b0
8 0 F SD C S4 S3 S2 S1 S0
-1 1 0 0 I4 I3 I2 I1 I0 FH
-2 2 TR VR HR BD 0 0 EO CE
-3 3 X7 X6 X5 X4 X3 X2 X1 X0
-4 4 0 0 0 0 0 0 X9 X8
-5 5 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
-6 6 0 0 0 0 0 0 Y9 Y8
-7 7 C7 C6 C5 C4 C3 C2 C1 C0
-8 8 BX7 BX6 BX5 BX4 BX3 BX2 BX1 BX0
-9 9 0 0 0 0 0 0 BX9 BX8
0 0 0 DG 0 IE1 M5 M4 M3 0
1 1 0 BLK IE0 M1 M2 0 SZ MAG
2 2 0 A16 A15 A14 A13 A12 A11 A10
3 3 B13 B12 B11 B10 B9 B8 B7 B6
4 4 0 0 C16 C15 C14 C13 C12 C11
5 5 D14 D13 D12 D11 D10 D9 D8 D7
6 6 0 0 E16 E15 E14 E13 E12 E11
7 7 TC3 TC2 TC1 TC0 BDC3 BDC2 BDC1 BDC0
9 8 0 0 TP CBD VRS1 VRS0 SPD B/W
10 9 LN 0 SYM1 SYM0 IL EO NTSC DCD
11 10 0 0 0 0 0 B16 B15 B14
12 11 0 0 0 0 0 0 D16 D15
13 12 C3 C2 C1 C0 BC3 BC2 BC1 BC0
14 13 ON3 ON2 ON1 ON0 OF3 OF2 OF1 OF1
15 14 0 0 0 0 0 F16 F15 F14
16 15 0 0 0 0 RS3 RS2 RS1 RS0
17 16 0 0 0 0 C3 C2 C1 C0
18 17 AII 0 RC5 RC4 RC3 RC2 RC1 RC0
19 18 dV3 dV2 dV1 dV0 dH3 dH2 dH1 dH0
20 19 IL7 IL6 IL5 IL4 IL3 IL2 IL1 IL0
21 20 0 0 CBX5 CBX4 CBX3 CBX2 CBX1 CBX0
22 21 0 0 CBY5 CBY4 CBY3 CBY2 CBY1 CBY0
23 22 0 0 CBZ5 CBZ4 CBZ3 CBZ2 CBZ1 CBZ0
24 23 DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
26 25 0 CMD VDS YAE YJK WTE MSK SP2
27 26 0 0 H8 H7 H6 H5 H4 H3
28 27 0 0 0 0 0 H0 H1 H2
33 32 SX7 SX6 SX5 SX4 SX3 SX2 SX1 SX0
34 33 0 0 0 0 0 0 0 SX8
35 34 SY7 SY6 SY5 SY4 SY3 SY2 SY1 SY0
36 35 0 0 0 0 0 0 SY9 SY8
37 36 DX7 DX6 DX5 DX4 DX3 DX2 DX1 DX0
38 37 0 0 0 0 0 0 0 DX8
39 38 DY7 DY6 DY5 DY4 DY3 DY2 DY1 DY0
40 39 0 0 0 0 0 0 DY9 DY8
41 40 NX7 NX6 NX5 NX4 NX3 NX2 NX1 NX0
42 41 0 0 0 0 0 0 NX9 NX8
43 42 NY7 NY6 NY5 NY4 NY3 NY2 NY1 NY0
44 43 0 0 0 0 0 0 NY9 NY8
45 44 CL7 CL6 CL5 CL4 CL3 CL2 CL1 CL0
46 45 0 MXC MXD MXS DIY DIX EQ MAJ
47 46 CM3 CM2 CM1 CM0 LO3 LO2 LO1 LO0
F - Vertical scanning interrupt flag (1: interrupt)
SD - 5th or 9th sprite detected
C - Sprite-collision detected
S4/0 - Sprite-number of 5th or 9th sprite
I4/0 - ID-number of the MSX-Video
FH - Horizontal scanning interrupt flag (1: interrupt)
TR - Transfer ready flag (1: ready)
VR - Vertical scanning line timing flag (1: scanning)
HR - Horizontal scanning line timing flag (1: scanning)
BD - Boundary colour detect flag of search command (1: colour found)
EO - Display field flag (0: display first field)
CE - Command Executing flag (0: ready)
X9/0 - X-coordinate of sprite-collision, mouse or lightpen
Y9/0 - Y-coordinate of sprite-collision, mouse or lightpen
C7/0 - Colour-read register of point command
BX9/0 - Border X-coordinate of search command
DG - Digitize
IE0 - Enable Vertical Retrace Interrupt
IE1 - Enable Horizontal Retrace Interrupt
D - External VDP-input
M5/1 - Screen select
00000 Screen 1
00001 Screen 0 (WIDTH 40)
00010 Screen 3
00100 Screen 2
01000 Screen 4
01001 Screen 0 (WIDTH 80)
01100 Screen 5
10000 Screen 6
10100 Screen 7
11100 Screen 8
BLK - Enable Display
SZ - Set sprite size 16 x 16
MAG - Magnify sprites
A16/10 - Pattern name table base address
B16/6 - Color table base address
C16/11 - Pattern generator table base address
D16/7 - Sprite attribute tabele base adress
E16/11 - Sprite pattern generator table base adress
TC3/0 - Text Colour
BCD3/0 - Back Drop Colour
TP - Non-transparant mode
CBD - Set Color Bus to input mode
VRS1/0 - Video RAM Select
00 - 1*16 KB
01 - 4*16 KB
10 - 1*64 KB
11 - 64 KB High Speed
SPD - Disable sprite display
B/W - Set black and white in 32 tones
LN - Set screen height to 212 (0 = 192)
SYM1/0 - Synchronization mode
00 - Intern
01 - Mix
10 - Extern (=> Digitize)
11 - None
IL - Interlace
EO - Even or Odd Display (0: one page; 1: two pages)
NTSC - TV mode select (0: NTSC; 1: PAL)
DCD - Dot Clock Direction (0: output)
C3/0 - Colour
BC3/0 - Back Colour
ON3/0 - Blink on (1 period = 0.20 s)
OF3/0 - Blink off (1 period = 0.20 s)
F16/14 - VRAM acess base address
RS3/0 - Status-register number
C3/0 - Color code
AII - Auto increment (0: on; 1:inhibit)
RC5/0 - Control-register number
dV3/0 - Vertical adjust display
dH3/0 - Horizontal adjust display
IL7/0 - Interrupt line
CBX5/0 - Color burst value of phase 0 (Preset: 00000000b)
CBY5/0 - Color burst value of phase 1/3 (Preset: 00111011b)
CBZ5/0 - Color busrt value of phase 2/3 (Preset: 00000101b)
DO7/0 - Display offset
CMD - Command mode (0: normal; 1: screen 2-4 as screen 8)
VDS - ???
YAE - Colour palette RGB output
YJK - YJK system
WTE - Send a wait-signal to the CPU
MSK - Mask 8 pixels at edges
SP2 - Screen width for hor. scroll (0: one page; 1: two pages)
H8-0 - Scroll screen horizontall
SX8/0 - Source x-coordinate
SY9/0 - Source y-coordinate
DX8/0 - Destination x-coordinate
DY9/0 - Destination y-coordinate
NX9/0 - Number of x-dots
NY9/0 - Number of y-dots
CL7/0 - Colour code
MXC - Select access memory
0: Video RAM
1: Expansion RAM
MXD - Select destination memory
0: Video RAM
1: Expansion RAM
MXS - Select source memory
0: Video RAM
1: Expansion RAM
DIX - Direction for NX from X-coordinate
0: Right
1: Left
DIY - Direction for NY from y-coordinate
0: Down
1: Up
EQ - Select execution stop for search command
0: Stop if another colour is found
1: Stop if colour is found
MAJ - Direction for long-side for line command
0: Along x-axis
1: Along y-axis
CM3/0 - Command SR DS NM CL MD MS DI LO
1111 HMMC - High-speed move CPU to VRAM - * * * * - * -
1110 YMMM - High-speed move VRAM to VRAM Y * Y - * - * -
1101 HMMM - High-speed move VRAM to VRAM * * * - * * * -
1100 HMMV - High-speed move VDP to VRAM - * * * * - * -
1011 LMMC - Logical move CPU to VRAM - * * * * - * *
1010 LMCM - Logical move VRAM to CPU * - * - * - * -
1001 LMMM - Logical move VRAM to VRAM * * * - * * * *
1000 LMMV - Logical move VDP to VRAM - * * * * - * *
0111 LINE - Draws a line - * * * * MA * *
0110 SRCH - Searches for a colour * - - * * EQ X -
0101 PSET - Draws a dot - * - * * - - *
0100 PINT - Returns the colour of a dot * - - - - * - -
0000 STOP - Aborts any command - - - - - - - -
LO3/1 - Logical operation
0000 IMP 1000 TIMP
0001 AND 1001 TAND
0010 OR 1010 TOR
0011 XOR 1011 TXOR
0100 NOT 1100 TNOT
------------------
Alias: Zelly
Group: Mayhem
Tasks: Code + Gfx
--------------------------------
Email: m.zellenrath@stud.tue.nl
Snail: Zelly
Hoefakker 2
4901 GC Oosterhout Nbr.
The Netherlands
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- mastering chaos -
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