Rendition widescreen, unlocked the viewport beyond the top 308 rows of pixels and fixed the aspect ratio weirdness. 16:9's doable. but 32:9 needs a camera offset:
https://youtu.be/4S6X4glexTg
https://www.patreon.com/posts/indycar-racing- … ntent=join_link

Gona wrote on 2025-11-16, 21:12:

I hope Windows 95 is also suitable: […]
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sharangad wrote on 2025-09-15, 18:22:

@Gona, could you post the resources used in Windows 98 by your 3DBlaster VLB? I'm interested in ports and address ranges. I hope these are listed in device manager.

I hope Windows 95 is also suitable:

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1I/O range: 03E0 - 03E3
2IRQ: 05
3Memory Range: C8000000 - C8000FFF
4Memory Range: D9000000 - D9FFFFFF

@Gona, could you try running this, it should dump to the screen and produce a log file?
https://nirvtek.com/downloads/3DBVLB.20251123.001.7z
MD5: 8d6f67dea2c45800eb4abbda959845ec

The 3DB blaster initialisation software appears to be reading a byte from IO port 0x20B to 0x303 until it finds what it's looking for. It's looking for a non 0xFF value, but simply returning something other than 0xFF doesn't appear to work.

sharangad wrote on 2025-11-23, 12:00:

@Gona, could you try running this, it should dump to the screen and produce a log file? https://nirvtek.com/downloads/3DBVLB.202 […]
Show full quote

Gona wrote on 2025-11-16, 21:12:

I hope Windows 95 is also suitable: […]
Show full quote

sharangad wrote on 2025-09-15, 18:22:

@Gona, could you post the resources used in Windows 98 by your 3DBlaster VLB? I'm interested in ports and address ranges. I hope these are listed in device manager.

I hope Windows 95 is also suitable:

Copy code to clipboard

1I/O range: 03E0 - 03E3
2IRQ: 05
3Memory Range: C8000000 - C8000FFF
4Memory Range: D9000000 - D9FFFFFF

@Gona, could you try running this, it should dump to the screen and produce a log file?
https://nirvtek.com/downloads/3DBVLB.20251123.001.7z
MD5: 8d6f67dea2c45800eb4abbda959845ec

The 3DB blaster initialisation software appears to be reading a byte from IO port 0x20B to 0x303 until it finds what it's looking for. It's looking for a non 0xFF value, but simply returning something other than 0xFF doesn't appear to work.

OK, here it is.

1...
2[Unknown] Port 02F7, input value FF
3[Match] Port 02FB, input value 03
4[Unknown] Port 02FF, input value FF
5...

Gona wrote on 2025-11-23, 20:07:

OK, here it is. […]
Show full quote

sharangad wrote on 2025-11-23, 12:00:

@Gona, could you try running this, it should dump to the screen and produce a log file? https://nirvtek.com/downloads/3DBVLB.202 […]
Show full quote

Gona wrote on 2025-11-16, 21:12:

I hope Windows 95 is also suitable: […]
Show full quote

I hope Windows 95 is also suitable:

Copy code to clipboard

1I/O range: 03E0 - 03E3
2IRQ: 05
3Memory Range: C8000000 - C8000FFF
4Memory Range: D9000000 - D9FFFFFF

@Gona, could you try running this, it should dump to the screen and produce a log file?
https://nirvtek.com/downloads/3DBVLB.20251123.001.7z
MD5: 8d6f67dea2c45800eb4abbda959845ec

The 3DB blaster initialisation software appears to be reading a byte from IO port 0x20B to 0x303 until it finds what it's looking for. It's looking for a non 0xFF value, but simply returning something other than 0xFF doesn't appear to work.

OK, here it is.

Copy code to clipboard

1...
2[Unknown] Port 02F7, input value FF
3[Match] Port 02FB, input value 03
4[Unknown] Port 02FF, input value FF
5...

Thanks Gona! I'll have another test app soonish.

Gona wrote on 2025-11-23, 20:07:

OK, here it is. […]
Show full quote

sharangad wrote on 2025-11-23, 12:00:

@Gona, could you try running this, it should dump to the screen and produce a log file? https://nirvtek.com/downloads/3DBVLB.202 […]
Show full quote

Gona wrote on 2025-11-16, 21:12:

I hope Windows 95 is also suitable: […]
Show full quote

I hope Windows 95 is also suitable:

Copy code to clipboard

1I/O range: 03E0 - 03E3
2IRQ: 05
3Memory Range: C8000000 - C8000FFF
4Memory Range: D9000000 - D9FFFFFF

@Gona, could you try running this, it should dump to the screen and produce a log file?
https://nirvtek.com/downloads/3DBVLB.20251123.001.7z
MD5: 8d6f67dea2c45800eb4abbda959845ec

The 3DB blaster initialisation software appears to be reading a byte from IO port 0x20B to 0x303 until it finds what it's looking for. It's looking for a non 0xFF value, but simply returning something other than 0xFF doesn't appear to work.

OK, here it is.

Copy code to clipboard

1...
2[Unknown] Port 02F7, input value FF
3[Match] Port 02FB, input value 03
4[Unknown] Port 02FF, input value FF
5...

Another one for you Gona. I've trapped more ports this time:
https://nirvtek.com/downloads/3DBVLB.20251124.001.7z
MD5: c2e16fec67952415e29dbee22adc73d5

sharangad wrote on 2025-11-24, 07:44:

Another one for you Gona. I've trapped more ports this time:
https://nirvtek.com/downloads/3DBVLB.20251124.001.7z
MD5: c2e16fec67952415e29dbee22adc73d5

OK, here it is.

Gona wrote on 2025-11-24, 16:49:

sharangad wrote on 2025-11-24, 07:44:

Another one for you Gona. I've trapped more ports this time:
https://nirvtek.com/downloads/3DBVLB.20251124.001.7z
MD5: c2e16fec67952415e29dbee22adc73d5

OK, here it is.

Thanks. That unfortunately didn't do quite what I expected. There'll be another test soon.

Gona wrote on 2025-11-24, 16:49:

sharangad wrote on 2025-11-24, 07:44:

Another one for you Gona. I've trapped more ports this time:
https://nirvtek.com/downloads/3DBVLB.20251124.001.7z
MD5: c2e16fec67952415e29dbee22adc73d5

OK, here it is.

I think the initial port writes configure a DMA command buffer and actual apps loop until the IRQ is triggered. I mirrored the initial port writes, but it didn't work. Probably because the data I need to send to the VLB needs to present in memory or interrupts need to be enabled, which my app doesn't have. I think the IRQ for the VLB is 3 (I'm probably wrong. Yes I am, it's 5), which might be what the port read returns. I think you listed the DOS config earlier.

Yup in the test app, interrupts are disabled in dosbox at least. I could get you a build to test this on the VLB, but I think it would be mostly pointless. I need to think about this for ab it.