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COMX 35 (NTSC)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Roms list
  9. BIOS set
  10. Chips list
  11. Categories
  12. History
Download comx35n.zip (0 B)
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Game infos

Description COMX 35 (NTSC)
Name comx35n
Manufacturer Comx World Operations Ltd
Year 1983
Runnable yes
System arcade /
Number of players Non-arcade
Added to MAME .125
Romset size 0 B
Romset file files
Romset zip 0 B
Genre Computer

Parent and clones

Parent comx35p : COMX 35 (PAL) (1983)

Sound infos

Sound_channels 2

Driver infos

Driver status imperfect
Driver emulation good
Driver color good
Driver sound imperfect
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt no
Input players 2
Input buttons
Input coins

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 8 no
keyboard no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 294 242 60.114504 5670000 360 30 324 262 10 252
raster 0 no 640 192 50

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade comx_10.u21 basic100 16384 68d0db2d comx_10.u21 062328361629019ceed9375afac18e2b7849ce47 u3 0 good no
arcade comx_11.u21 basic101 16384 609d89cd comx_11.u21 799646810510d8236fbfafaff7a73d5170990f16 u3 0 good no

BIOS set

name description default
basic100 COMX BASIC V1.00 yes
basic101 COMX BASIC V1.01 yes

Chips list

name tag type clock
CDP1802 u3 cpu 2835000
Floppy sound exp:eb:slot1:fd:wd1770:0:525sd35t:floppysound audio 44100
RCA CDP1869 u2 audio 5670000
Speaker exp:eb:slot1:fd:wd1770:0:525sd35t:flopsndout audio
Wave wave audio

Categories

History


Computer published 36 years ago:

COMX 35 (c) 1983 Comx World Operations, Limited.

- TECHNICAL -

The COMX 35 was one of the very few systems to use the RCA 1802 microprocessor, the same microprocessor that is also used in some space probes.

- TRIVIA -

The COMX 35 was manufactured in Hong Kong by COMX.

- TIPS AND TRICKS -

The most famous bug in the COMX basic ROM was when you typed in the line number 65535 this resulted in the COMX hanging and the screen getting all messed up which could be very frustrating if the user had spent hours typing in a BASIC program.

A similar thing as when using line number 65535 was typing in 'READY', after this the COMX was not 'READY' anymore. F&M discovered this one when they designed the F&M screen editor and pressed 'CR' (return) on the 'READY' prompt. As such they decided to change the prompt into 'OK' to avoid too many accidental hangings when using a screen editor. This fault was actually caused by the basic READ command, when a READ Y (or any other READ) instruction is given when there is no DATA statement in the loaded basic program the COMX hangs.

Another bug in the standard character set was the '!' which displayed a red dot just above the black dot.

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=61717&o=2