ordos

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645 KiB

Author	SHA1	Message	Date
Juhani Krekelä	e161d14321	Reset floppy disks upon read failure	2 years ago
Juhani Krekelä	48436ef9bd	Put debug output behind debug define in io.asm	2 years ago
Juhani Krekelä	b9c83b11cd	Implement date/time	2 years ago
Juhani Krekelä	68030372b7	Load and execute command.com	2 years ago
Juhani Krekelä	1967c06b85	Fix shift used for converting KiB to paragraphs The old code was essentially a no-op due to x86 taking shifts mod 32. This lead DOS to believe that it had 10KiB of memory, which is not enough to contain io.sys, the DOS kernel, and command.com. This causes command.com to overwrite the DOS kernel when it goes to relocate itself at the end of the memory, leading to system crash.	2 years ago
Juhani Krekelä	9a7e047d57	Implement console IO	2 years ago
Juhani Krekelä	7d99699b7e	Open command.com in io.sys	2 years ago
Juhani Krekelä	007af45879	Use `db` instead of `dw` for number of FATs Using `dw` ended up shifting all the values over by one byte, making DOS think our 320K floppy was actually 16MiB in size, and had 46 sectors of FAT instead of 1. This further lead it trash the setup stack and fail to locate the disk directory.	2 years ago
Juhani Krekelä	b3ca33653f	Start work on io.sys	2 years ago