- Correct sign extension for 16-bit absolute addresses
- Use H' prefix for hexadecimal numbers
- Restrict address length depending on model
- Format arguments in separate column
* Made some experimental work with menghong based HW, allowing crzyddz2 to boot and improving menghong colors;
* Internalize video and audio components inside the SoC;
* Wrote a preliminary UART subdevice;
* Made external video clock to be settable by the host driver;
It appears that the cursor is not displayed when the start raster
address is equal to the maximum raster address in the 'interlace and
video' mode. At least this addresses a claimed regression in the
'apricot' machine. To be explore further on hardware.
The maximum raster address was also off by one in these calculations.
It appears that the cursor is not displayed when the start raster
address is equal to the maximum raster address in the 'interlace and
video' mode. At least this addresses a claimed regression in the
'apricot' machine. To be explore further on hardware.
The maximum raster address was also off by one in these calculations.
* spectrum bus : rename beta.cpp to beta128.cpp as the original beta is somewhat different (nw)
* (nw)
* start making a device for the actual original beta disk interfaces (nw)
* flesh out beta stuff a bit (nw)
The MC6845 shows a full cursor if the cursor end raster address is
greater than the maximum raster address, restore that case in general.
The issue on the BBC, that uses the HD6845S, might be the use of the
maximum raster address here, it appears to be programmed differently
on the HD6845S and also to depend on the interlaced mode. This patch
fixes the BBC while preserving the cursor emulation for the MC6845.
This uses the WD1000 driver.
The DMAF2/3 6844 DMA support had to be improved to support multiple channels,
and now supports a separate high addresses for each channel. It now also
support addresses increasing or decreasing. These controllers use different
DMA channels for the floppy and the hard disk, and also a tape archiver which
is not yet implemented.
This gets UniFLEX running using a hard disk for storage, and does not appear
to regress the floppy support or other variants using the DMAF2.
BLMOVE has actually 4 different cases of execution based on two lowest
bits in opcode, which were not properly handled.
Fixes endless loop in atronic / atricmon.
