The consenus is that the best default address for Xosera
is $A0, so make that the default.
However, in that case we need to limit the number of UARTs
that are probed to two because the probe for a third UART
writes unlucky values to Xosera (at $A3) and causes it to
reconfigure itself and lock up the bus for a time.
Thanks to Wayne for his help in debugging this.
Corrected DSRTC and BQRTC drivers to properly restore the value of the NVRAM byte used for presence detection.
Thanks and credit to @MartinGieseCelonis for finding this.
General cleanup and refactoring of the ROM bank layout mechanism in the build scripts. This will make it easier to add and adjust the components in the ROM banks.
This commit does not yet implement the pending bank layout changes. Those will be part of the next commit.
- Add a -DELAY switch to the TUNE command line to force the use of delay mode for note pacing. Issue #558 Credit to @robbbates for suggesting this.
- Add missing include file logic for DS1307, Issue #556. Credit to @tpycio.
- Miscellaneous documentation improvements per Peter Onion and Petr Antos.
DS1307 driver (ds7rtc.asm) was displaying an erroneous date/time in the boot messages. The HBIOS API data was OK. Credit and thanks to @tpycio for identifying this issue.
Per Issue #541, a platform configuration file has been created for the EZZ80 platform. The two ROM builds for this platform have changed prefix from RCZ80 to EZZ80.
The RC2014 Single and Dual UART Modules do not have the /RTS line connected. The /DTR line is used to signal flow control.
This PR simply adds active management of the /DTR.
The current UART initialisation process already does configuration, but not active management.
- UNARC updated to UNARCU11 which fixes an edge case where the user number was being incorrectly changed. See #496. Thanks and credit to Lars Nelson for this.
Rom Bank 1 has no size constraint, can increase romldr (oversize) without build issue, bank truncation
Rom bank 2 usrrom (last app) has size constraint check, shouldnt be function of app
Rom bank 2 usr rom pads to end of 32k in its Size, unnecessary as handled by "srec_cat -crop"
So
* move out the bank size protections (from user rom) into layout.inc
* ensre bank 1 has same protection as bank2.
* make user rom a realistic size ($200), padding handled by crc check
* also good to .ECHO overall sizes of banks, improve logging.
Thanks and credit to Phillip Summers for finding these and suggesting solutions.
- VGA driver initialization fixed.
- CVDU probe fixed to not rely on ready bit of CVDU