The keyboard should communicate at 1,200 Baud, but due to bugs in the SCC
it's set to 9,600 Baud. The sun4c machines program the Baud rate
generator dividers for the serial ports with 00:0e and the dividers for
the keyboard/mouse ports with 00:7e. Therefore the ratio of Baud rates
should be (0x7e + 2) / (0x0e + 2) = 128 / 16 = 8. However both the RS232
ports and the keyboard/mouse ports run at 9,600 Baud, when the
keyboard/mouse ports should run at 1,200 Baud (which is 1/8 of 9,600 which
matches the ratio of the divider values).
I've artificially limited the rate the keyboard can transmit at to be no
faster than it could at 1,200 Baud using a timer. I can remove this hack
once we get correct SCC divider behaviour.
I attempted to hook up the SCC interrupts to level 12 as specified in the
SPARCstation-1 Programmer's Model in the table on Page 19. No interrupts
seem to be generated, so either I've screwed this up somehow, the Sun
isn't enabling interrupts, or there's another bug in the SCC emulation.
Sorry if I've screwed it up - I won't be offended if someone replaces it
wholesale.
The keyboard receives the reset commands from the Sun and sends back the
self test pass response, but the SCC seems to get a buffer overrun error.
So it appears that the received data isn't being read out. I haven't been
able to work out why.
* .h -> .ipp for things that aren't really headers
* make more stuff in selmenu private
* move the remembered driver/software associated with the snap to the cache object
* start cleaning up constness in datfile manager - it's still a mess of non-const statics
* Split out main menu and dat box drawing from base class
* Make a bunch of class statics proper per-machine persistent objects
* Object lifecycle fixes
- Button mappings completely reworked: grey bidding/suit selection buttons classified as keypad inputs and put in correct order, and other buttons as console-standard Start, Select, Button 1-2
- Inputs now read through PIO instead of RAM addresses, making them less hypersensitive
- Manufacturer/publisher is Unicard, as manuals and system/cartridge labels clearly state
- Added release years for some common cartridges
- (nw) Link bbcbc in its own library rather than the unrelated libacorn ("make clean" strongly recommended)
- Create a SG-1000 expansion slot.
- Hook up the SG-1000 expansion slot to sg1000.cpp and sms.cpp (sg1000m3).
- Split the sk1100 code from sg1000.cpp and attach it to the new expansion slot.
- Create a new FM Sound Unit device and attach it to the new expansion slot.
- For the sc3000 driver, re-add sk1100 as a fixed SG-1000 expansion device.
- Add sg1000 software list to sg1000m3 and Japanese/Korean SMS drivers.
sms.cpp: implemented some new findings [Enik Land]
- Remove some mirrors for ports $DC/$DD on SMSJ based on Charles' hw tests.
- Add basic C-Sync callback to 315_5124.cpp, based on Charles' hw tests.
- Add built-in Rapid Fire (uses C-Sync) for SMSJ and Korean SMS1 drivers.
- Add new SMS drivers due to XTAL differences:
sms1br - Tec Toy Master System I (Brazil)
sms2br - Tec Toy Master System II (Brazil)
smsbr - Tec Toy Master System III Compact (Brazil)
sms1paln - Tec Toy Master System I (PAL-N)
sms2paln - Tec Toy Master System II (PAL-N)
smspaln - Tec Toy Master System III Compact (PAL-N)
Brazil is PAL-M TV system, but I decided to call it by the
country name, seems to be better recognizable and for
emulation looks more like a NTSC system. PAL-N is used
in Argentina, Paraguay and Uruguay and looks closer to
the European PAL system when compared to PAL-M.
- Replaced shared_ptr by unique_ptr.
- Better seperation of setup_t and netlist_t.
- Fixed bugs in rdtsc code. Refactored timer code.
- Simplify conditional activation/deactivation.
- Introduced HINT(device, hint) to clarify that hints are inheritent
and not specific to devices.
- Added improved profiling support to netlist. Statistics output now
proposes devices for which whole device activation/deactivation be
disabled. No significant improvement for pong, but breakout
experiences a 10% improvement.
- Moved options code from include to cpp file.
- Minor modifications to 7493 and 9316
- Introduced perftime_t and perfcount_t for gathering statistics. These
templates do not create any code if statistics are not kept.
- Make help2man ./nltool produce usuable output.
- More truthtable refactoring. Removed half-finished code for internal
state support. As implemented, this would have had no support for
timing delays.
[Couriersud]
