v0.9.9 won't boot from XT-CF without multi I/O card

skiselev / 8088_bios

BIOS for Intel 8088 based computers

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v0.9.9 won't boot from XT-CF without multi I/O card #30

Closed TzOk83 closed 1 year ago

TzOk83 commented 1 year ago

With the new release, I have discovered, that Micro8088 is unable to boot from XT-CF when no Multi I/O card is present. It freezes on Booting C message. I'm using PT8010AF chipset, and a NEC V20 CPU.

skiselev commented 1 year ago

I am unable to reproduce this issue on my system, which also has a PT8010AF chipset and a NEC V20 CPU. What is your XT-CF setup:

What is the version of the XTIDE Universal BIOS extension?
What I/O port is the XT-CF using?
Where is the XTIDE Universal BIOS located? In the system flash ROM (e.g. at F000:0000), or in the EEPROM on the XT-CF card? If it is the later, what is the address of the XTIDE BIOS?

TzOk83 commented 1 year ago

I'm using XT-CF-Mini board (by Monotech), with the latest available BIOS extension (r624). I/O port is 300h for card, and C800h for BIOS. UMB on Micro8088 is set to start at D000h.

I think, you may be right, I might be experiencing some hardware related issue.