Hong Kong 212 PCB,128+1024?

Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-02 (#211121)

I dump this cart!

128K is contra.

using mapper 235,rom display 100-in-1 nestopia!
but hardware runing is 210-in-1.

this PCB 128+2048K?

menu like

Attachment:

260-in-1 [p1][!]_001.png [ 7.57 KiB | Viewed 3250 times ]

Re: Hong Kong 212 PCB,128+1024?
by MLX on 2018-01-02 (#211124)

I have both 260 and 210 in 1 (and they will be dumped by CaH4e3 some time later this year), on mine the PCB have less TTL chips. I think mine are original releases?

Re: Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-02 (#211130)

MLX wrote:

I have both 260 and 210 in 1 (and they will be dumped by CaH4e3 some time later this year), on mine the PCB have less TTL chips. I think mine are original releases?

this cart I 2012 year dumped.
but not working....

Re: Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-02 (#211136)

Attachment:

2018-01-02_21-33-10.jpg [ 304.81 KiB | Viewed 3211 times ]

over,128k+2048k

..........,close subject.

Re: Hong Kong 212 PCB,128+1024?
by krzysiobal on 2018-01-03 (#211187)

It can't be mapper 235, because it can also support one UNROM game (which is programmed into smalles 128 kB DIP28 mask rom). I have few questions about connecions, can you answer them?

Re: Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-03 (#211188)

krzysiobal wrote:

It can't be mapper 235, because it can also support one UNROM game (which is programmed into smalles 128 kB DIP28 mask rom). I have few questions about connecions, can you answer them?

yes,I definition mapper 235.2 for this pcb.

Re: Hong Kong 212 PCB,128+1024?
by krzysiobal on 2018-01-03 (#211214)

Does the hardware work that after one reset - this menu with 200 games is shown, and on another reset - one UNROM game is loaded?

Re: Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-03 (#211216)

krzysiobal wrote:

Does the hardware work that after one reset - this menu with 200 games is shown, and on another reset - one UNROM game is loaded?

yes,
Power on,UNROM(Contra) game is loaded.after one reset - this menu with 200 games is shown, and on another reset - one UNROM game is loaded,

this pcb other version: no extra UNROM Chip, Power on show 200 games.

Re: Hong Kong 212 PCB,128+1024?
by krzysiobal on 2018-01-03 (#211217)

Ok, so I am almost sure that this is 100% rev-en pcb:

Weird thing is that when horizontal mirroring is set, CHR-RAM is write protected.

Re: Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-03 (#211218)

krzysiobal wrote:

Ok, so I am almost sure that this is 100% rev-en pcb:

Weird thing is that when horizontal mirroring is set, CHR-RAM is write protected.

chips combination order ? 2048K+128? 128+2048?

我还有好多PCB,有几万个吧

Re: Hong Kong 212 PCB,128+1024?
by krzysiobal on 2018-01-03 (#211220)

Quote:

chips combination order ? 2048K+128? 128+2048?

It depends how you implement the reset switch in emulator. 2048+128 is more logical.

Re: Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-03 (#211225)

krzysiobal wrote:

Quote:

chips combination order ? 2048K+128? 128+2048?

It depends how you implement the reset switch in emulator. 2048+128 is more logical.

Nestopia Plus! implement the reset switch,ROM PRG0 1024K+PRG1 1024K+PRG3 128K.

todo:test.

Re: Hong Kong 212 PCB,128+1024?
by NewRisingSun on 2018-01-04 (#211229)

If you defined mapper 235.2 for this, what's mapper 235.1?

Re: Hong Kong 212 PCB,128+1024?
by zxbdragon on 2018-01-04 (#211230)

NewRisingSun wrote:

If you defined mapper 235.2 for this, what's mapper 235.1?

235.1 using powerk1079. this rom mapper info like 235, dumped by 2010.

235.1,235.2 rom Test Team to testing.

Re: Hong Kong 212 PCB,128+1024?
by NewRisingSun on 2018-01-04 (#211234)

All right, I have implemented it in Nintendulator-NRS as well, works nicely.

Re: Hong Kong 212 PCB,128+1024?
by NewRisingSun on 2018-01-04 (#211244)

krzysiobal wrote:

Weird thing is that when horizontal mirroring is set, CHR-RAM is write protected.

The individual game Zippy Race uses Horizontal Mirroring and has a bug that causes inadvertent CHR-ROM writes, which on this multicart of course become CHR-RAM writes. On emulators that fail to emulate the CHR-RAM write-protect, the "P" of the red "1UP" script on the right side of the screen becomes corrupted once the race has begun.

Honestly, I'm quite surprised that the pirates cared about such small details.

Re: Hong Kong 212 PCB,128+1024?
by tepples on 2018-01-04 (#211251)

NewRisingSun wrote:

The individual game Zippy Race uses Horizontal Mirroring and has a bug that causes inadvertent CHR-ROM writes

That's terrible.

Thanks for the addition to the tricky list.