Comments (2)
In the "failing boot" case, the SDcard LED comes on briefly and then the HALT LED, then the screen re-syncs to show the 80-col video but no output on the screen (except maybe something left from a previous boot).
from nascom.
Fixed. The problem was that I was leaving the high nibble of port EC at F, the wrong default video page (different from the hardware default). That's fixed in the latest make_rom_menu script which is itself incorporated in the lastest nascom4_sdcard.img
from nascom.
Related Issues (12)
- setdrv does not complain about non-existent file HOT 1
- N4 create richer SDcard image HOT 3
- Nascom-2 on an ESP32 HOT 3
- How to add Intel HEX as an optional assembly listing mode? HOT 4
- sddir formatting of pager is messy HOT 1
- ARDUINO SDCARD / POLYDOS HOT 1
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- N4 no hardware cursor on MAP80 VFC video
- N4 PS/2 keyboard doens't reset reliably
- N4 add support for IACK/vectored interrupts
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from nascom.