- 4 ata interfaces support (1)
- devices auto-detection
- 16bits/32bits device access
- EDD3.0 support
This is nearly the same BIOS I offered for download on July 12th,
but I hope to get more feedback with the CVS.
I will update this bios with the atapi bit and fixes, and
I'll eventually merge the changes in the main BIOS.
Added Files:
BIOS-bochs-new-ata rombios-new-ata.c
more work in the floppy and bios code.
- floppy and cdrom entries in the runtime config menu can be disabled if the
drive wasn't defined in bochsrc or start menu
- floppy variable "initial_status" and cdrom variable "inserted" renamed to
"status"
- unused variable *ips in function build_runtime_options_prompt() disabled
as no symbol. Now they will be relative to the last symbol.
- when anything was looked up in a segment with a nonzero base address,
it would print "non-zero base" and abort the lookup. I disabled this
behavior so that it would look up the symbol based on the EIP despite
the base. This change makes it possible to trace user processes, in
which the base is 0xc0000000.
- symbol lookup also used to fail in 16-bit code. Since the address
translations rules for 16-bit code are simple enough, I just compute
the 20-bit linear address and look up the symbol with it. Now I
can load a symbol table of the ROMBIOS and it works.
* new floppy type 360k can be used in .bochsrc and the config interface
* media type and geometry can be set for the floppy type
* BIOS changes to make 360k floppy drives work
* bximage can create 360k images now
Port 0x8901 is used. Two time values can be set and
read, along with the difference of the two.
Please look in the patch file for instructions on usage.
and works okay with one rom track only. We still have to implement reading
the real TOC on win32.
- in function GetCDCapacity(): type of variable 'buf[8]' must be 'unsigned char'
- in function capacity(): win32 version returned the number of bytes, but it
should return the number of blocks (ASPI blocksize is 2352)
- description of the function capacity() fixed (it always returns blocks)
controller returns an error code until we are able to implement this feature.
- init_send_atapi_command(): don't panic if alloc_length is 0, use byte_count
to set alloc_length instead
- fixed a BX_PANIC message in the io write handler for port 0x1f0
- init(): set the initial status to BX_EJECTED if evaluate_media() fails
- don't modify the DOR when a drive > 1 is selected
- floppy command 'get status' now recognizes the head field
- floppy command 'recalibrate': don't set cylinder to 0 before completion
- floppy command 'sense interupt status' does not clear status register 0
- floppy command 'configure': more detailed BX_DEBUG messages
- floppy command 'read ID' does not modify status register 0
- floppy read/write commands: set the error bit in status register 0 if media
is not present
- better detection of not existing drives in some commands: check the media type
of the selected drive instead of the drive select value
- behaviour of floppy commands 'recalibrate' and 'seek' changed:
* drive is busy in the execution phase, but not the controller
* replaced the panic by setting the error status if drive is not existing
- evaluate_media(): set the media type even if device/file is not present
