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Author SHA1 Message Date
Adrian.Conlon
685a645674 1) Correct frequency hi/lo storage 
2) Calculate resultant frequency in Hz.
3) Add extra logging for audio device register writes.

Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-18 19:17:38 +01:00
Adrian.Conlon
735ebe3e85 Add a couple of missed debugging messages. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-17 23:07:56 +01:00
Adrian.Conlon
b7924aad62 Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2017-09-17 22:23:36 +01:00
Adrian.Conlon
61ae382a98 A different approach to audio handling. Just holding data at the moment. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-17 22:19:07 +01:00
Adrian.Conlon
462b82add6 Add some new events for sound updates (TBC) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-17 09:50:20 +01:00
Adrian.Conlon
ea3f154989 Preliminary support for 16 row high sprites. Don't think it's working! 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-17 09:46:28 +01:00
Adrian Conlon
b3a082944a Gameboy processor is alive! 2017-09-15 22:37:47 +01:00
Adrian.Conlon
07d44966ac Another stab at keyboard scanning. Better, but not perfect... 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 21:25:08 +01:00
Adrian.Conlon
9190b29b4b Remove some unused memory event handlers. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 18:56:05 +01:00
Adrian.Conlon
26e99f6934 Whoops: broke sprite transparency and flipping! 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 18:29:47 +01:00
Adrian.Conlon
f4c8496882 Generalise tile rendering code for background and sprites. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 18:23:02 +01:00
Adrian.Conlon
e40ee1d7a6 X/Y sprite flip implemented. Easy! 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 17:48:06 +01:00
Adrian.Conlon
94fe1a7494 Add support for sprite transparencies. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 17:37:57 +01:00
Adrian.Conlon
f6181400c4 First stab at sprites. Lots of bugs! 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 17:25:55 +01:00
Adrian.Conlon
2060989ac7 Add keyboard interrupt handling (TBC) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 12:35:16 +01:00
Adrian.Conlon
e1b838355e Add P1 (i.e. keyboard) support. Interestingly, gets Tetris *much* further. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-15 00:53:56 +01:00
Adrian.Conlon
32d1085ecb Start properly implementing IO status register read/write. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-14 23:48:49 +01:00
Adrian.Conlon
b445457b37 Fire pre/post memory read/write events 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-14 15:00:57 +01:00
Adrian.Conlon
a77e57e5fc Add pre/post read/write memory events. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-13 23:12:47 +01:00
Adrian.Conlon
2c92e4d389 Updated for appveyor library location compatibility. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-12 13:30:56 +01:00
Adrian.Conlon
b6ffb07e4b Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2017-09-10 18:19:54 +01:00
Adrian.Conlon
64d0eb308c Changes for Appveyor compatibility 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-10 18:19:41 +01:00
Adrian.Conlon
0dcc5086d7 Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2017-09-07 20:12:11 +01:00
Adrian.Conlon
3bd647b789 Correct a couple of memory map elements. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-07 20:11:57 +01:00
Adrian.Conlon
b0923bd472 (Coverity) Initialise Bus variables in constructor. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-07 13:45:16 +01:00
Adrian.Conlon
c5c842a70b Correct some rom initialisation/loading issues. 2017-09-07 12:23:06 +01:00
Adrian.Conlon
129286f1a7 Ensure LR35902 fuse tests run successfully to completion. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-07 01:15:28 +01:00
Adrian.Conlon
cae34d61d1 Ensure the Z80 unit tests run successfully to completion. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-07 01:04:09 +01:00
Adrian.Conlon
c472d70c5c Ensure the MOS6502 unit tests run successfully to completion. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-07 00:58:56 +01:00
Adrian.Conlon
74a62f554d Ensure the i8080 unit tests run successfully to completion. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-07 00:55:06 +01:00
Adrian.Conlon
0665de5951 Make the base BUS architecture a little easier to work with. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-07 00:53:22 +01:00
Adrian.Conlon
64b7335a79 Attempted move to a "BUS" oriented memory architecture (TBC!) 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-09-06 13:22:23 +01:00
Adrian.Conlon
8d91260f84 Tidy up some precompiled header usage 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-03 23:51:01 +01:00
Adrian.Conlon
ef766fd626 Correct some linux warnings. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-03 22:40:45 +01:00
Adrian.Conlon
da806bddcb Tidy some more Windows/Linux compatibility issues. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-03 21:30:46 +01:00
Adrian.Conlon
c55bba5d2b Correct a couple of Makefile issues. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-03 12:40:11 +01:00
Adrian.Conlon
6f8cf74c36 Add linux makefiles for parts of the EightBit library 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-03 12:11:47 +01:00
Adrian.Conlon
640b2be670 Parts of the EightBit library become linux compatible (TBC!) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-03 12:11:14 +01:00
Adrian.Conlon
57cfd79c44 Tidy header file usage a little. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-01 16:41:50 +01:00
Adrian.Conlon
9b43b74c28 Rationalise some of the reset/initialise logic across pProcessor implementations. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-01 16:01:40 +01:00
Adrian.Conlon
ef3203d943 Tidy raster line execution a little. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-01 13:24:41 +01:00
Adrian.Conlon
e42484d35c Better DIV implementation. Incremented as a word and exposed as the high part in the DIV register. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-09-01 13:17:20 +01:00
Adrian.Conlon
a2784ae02d Timers can (of course) expire during CPU instruction execution. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-31 17:21:44 +01:00
Adrian.Conlon
406e651c66 Whoops: The processor should only execute instructions while it is powered. Otherwise, it'll get into an infinite loop. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-31 17:19:32 +01:00
Adrian.Conlon
711d4f4384 Add some GB IO register information in the disassembler. Nothing fancy! 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-31 17:18:38 +01:00
Adrian.Conlon
1eb127ed72 Add power support to processor base class. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-31 12:13:00 +01:00
Adrian.Conlon
20c126adfc Correct a couple of cycle counting issues. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-31 01:19:51 +01:00
Adrian.Conlon
e70686c5de Some more rationalisation of processor execution/stepping strategies. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-30 23:17:34 +01:00
Adrian.Conlon
5fe3d458df Correct F8 carry flag usage. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-29 22:36:26 +01:00
Adrian.Conlon
daab0484c3 Use corrected LR35902 library to run test loop. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-29 22:35:56 +01:00