ROM type in Zemmix cartridge

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By rderooy

Hero (537)

rderooy's picture

16-06-2019, 11:03

I think it reads: 로드 화이터 which according to google translates to "loader", which is not very helpful.

By gdx

Prophet (2773)

gdx's picture

16-06-2019, 12:17

Yes, 로드 화이터 = Road Fighter

I think there is little possibility that the ROM is down. This is probably one of the other chips that is down.

By Jipe

Paragon (1365)

Jipe's picture

16-06-2019, 12:17

with 2x74LS670 is minimum a 512k game

By Jipe

Paragon (1365)

Jipe's picture

16-06-2019, 12:29

see schematic Megaflashrom 512k for help
http://msxvillage.fr/forum/topic.php?id=1001#m18257

By Manuel

Ascended (15449)

Manuel's picture

16-06-2019, 13:34

Argon wrote:

The code CSG-017R is Road Fighter..

How did you know? It doesn't seem to be in the generation msx database....

By Argon

Paragon (1074)

Argon's picture

16-06-2019, 13:38

Google Smile

By tfh

Paragon (1731)

tfh's picture

16-06-2019, 13:51

Manuel wrote:
Argon wrote:

The code CSG-017R is Road Fighter..

How did you know? It doesn't seem to be in the generation msx database....

Jost copy/paste "로드 화이터" into Google.
Google doesn't seem to be your friend, isn't it? ;-)

By Manuel

Ascended (15449)

Manuel's picture

16-06-2019, 14:31

Well, I found my own list here: https://www.msx.org/nl/node/44750?page=2
But apparently I didn't put that info in Generation MSX yet... rderooy: do you have time? :)

By Jipe

Paragon (1365)

Jipe's picture

16-06-2019, 17:49

512k game 80 ?

By RetroTechie

Paragon (1551)

RetroTechie's picture

17-06-2019, 01:11

8 bit wide mask ROM in 32 pin DIP will be 2 Mbit (256 KB) minimum, and 16 Mbit (2 MB) maximum. For the latter, you have only a single chip select then, and besides GND/power and 8 data lines, all other pins are address lines. Thus the next step up (32 Mbit / 4 MB) requires a bigger package like 36 pin DIP.

Circuit is simple enough. Any chance of drawing & posting a schematic? (doesn't have to look good Wink as long as connections are shown). If that's too much trouble: see how pins 1, 22, 24 and 31 of the ROM are connected. Then it'll be easy to conclude what size ROM it is.

Edit: 2x 74LS670 means: 256 blocks maximum. Of course some bits of the '670 may be unused.

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