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EightBit
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999 Commits

Author SHA1 Message Date
Adrian Conlon 28ae32b8a2 Z80: Whoops: Correct broken CPDR implementation. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-16 17:09:19 +00:00
Adrian Conlon d785b1eae7 Simplify LR35902 machine timing. 2020-11-13 17:28:35 +00:00
Adrian Conlon eb761bc62f LR35902: Whoops: correct broken timer (when it begins at zero!) 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-13 14:50:12 +00:00
Adrian Conlon fa7e1480d3 LR35902: Fix lots of timing issues by attaching to the "tick" event. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-13 10:14:06 +00:00
Adrian Conlon efed7dae23 LR35902 Simplify timing mechanism (corrects some timing issues as well!) 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-12 18:21:51 +00:00
Adrian Conlon b8a2db96f4 Include interrupt information in the disassembler output. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-12 16:22:44 +00:00
Adrian Conlon f7da03d46b Bring the LR35902 code to be more like the Z80 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-09 11:48:59 +00:00
Adrian Conlon 759b4a9fa8 GameBoy: Correct a few (very minor C++) niggles in the implementation. No functional changes. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-07 09:41:12 +00:00
Adrian Conlon 33dd479421 Updated GameBoy processor documentation. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-11-07 09:36:47 +00:00
Adrian Conlon 808251d0f6 (Dr Mario Fixes) Second tile selection bank is indexed in a signed manner. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-10-28 14:02:42 +00:00
Adrian Conlon 5631d2b367 (Dr. Mario Fixes) Correct out of range crash when palette selection is anything but zero. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-10-28 14:01:40 +00:00
Adrian Conlon 960d6ff181 Whoops: Missed compile module from the LR35902 makefile 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-07-25 09:28:33 +01:00
Adrian Conlon c48a91216e Tidy up linux link-time optimisation flags. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-06-07 12:33:19 +01:00
Adrian Conlon 3d30fe8f3b Damn: Chip.cpp doesn't exist anymore. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-06-07 12:04:08 +01:00
Adrian Conlon d956702e05 Whoops: Missed gaming library makefile for linux 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-06-07 11:59:37 +01:00
Adrian Conlon 23219734da Resurrect linux build (checked on Ubuntu 18.04) 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-06-07 11:49:57 +01:00
Adrian Conlon 1663c7caf3 Refactor the "Game" class a little to allow future refactoring. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-05-03 20:55:58 +01:00
Adrian Conlon 17edcee715 Add a pin activator class to correctly handle "wrapped" pin transitions. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-05-03 20:45:01 +01:00
Adrian Conlon de800fe9f1 Modify virtual default destructor specification to better match core guidelines. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-05-03 20:29:18 +01:00
Adrian Conlon 5eedbe1225 Make better use of modern c++ 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-05-02 11:36:43 +01:00
Adrian Conlon 44c6a8c3d1 Correct some EightBit project analysis warnings. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-04-06 23:11:21 +01:00
Adrian Conlon 7296ff7cce MC6809 tidy a few items and show a "functional" (rather than macro based) rmw routine. 2020-04-06 23:08:11 +01:00
Adrian Conlon ff02159886 MC6809: Add a cycle eater routine. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-04-04 12:27:26 +01:00
Adrian Conlon c81204512c MC6809: Correct a couple of cycle count errors. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-04-04 11:39:37 +01:00
Adrian Conlon d4e6e13fde First stab at cycle accurate 6809 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-04-03 10:13:42 +01:00
Adrian Conlon dcb809d8f9 Add finer control of memory and IO events in the Z80 implementation. Allows small tidy of the halt condition. 
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
 2020-03-23 21:56:23 +00:00
Adrian Conlon 99f0712801 Simplify Z80 instruction timing a little. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-23 09:37:03 +00:00
Adrian Conlon 0b6a656a45 Add cycle count to the z80 fuse test runner. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-22 09:03:17 +00:00
Adrian Conlon 6285a397ab Tidy 6502 whitespace 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-22 09:02:37 +00:00
Adrian Conlon e6b26e631c Fix more Z80 instruction timings. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-22 08:32:29 +00:00
Adrian Conlon 255708e0bc Add some more Z80 documentation. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-22 08:30:52 +00:00
Adrian Conlon b89d2cf15c Start correcting Z80 T-cycle counts (DJNZ, JR cc, ADD HL,rp, INC/DEC rp, INC/DEC (HL)) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-16 09:18:34 +00:00
Adrian Conlon a37601df67 Correct recently introduced IO implementation issues in the 8080 core. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-13 09:17:52 +00:00
Adrian Conlon c8bdabf34f Reflect that the I/O for Intel style processors isn't part of the CPU, but attached to the Bus and access controlled by the CPU. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2020-02-09 11:51:58 +00:00
Adrian Conlon dc37d61797 Tidy up some shared code for the Z80 pushWord vs call timing. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-12-29 13:03:44 +00:00
Adrian Conlon d9466082ec M-Cycle accurate Z80 modifications. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-12-29 01:18:54 +00:00
Adrian Conlon feee7ec2e6 Add some more Z80 documentation 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-12-29 01:13:52 +00:00
Adrian Conlon f9cc29f72e Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2019-11-19 23:06:19 +00:00
Adrian Conlon 98d9199f19 Whoops: missed power on state of the "RFRSH" pin. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-19 23:06:08 +00:00
Adrian Conlon cb502bd65d Halt is of course an "output" pin. (So that the halt instruction can work) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-19 23:05:27 +00:00
Adrian Conlon 3a49a9cc59 Use simpler LR35902 CPU/render sequence. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-18 00:54:52 +00:00
Adrian Conlon 43cf7e523b Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 
# Conflicts:
#	Z80/src/Z80.cpp
 2019-11-16 23:41:04 +00:00
Adrian Conlon 195b0e19bd Correct INT handling on Z80 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-16 23:38:51 +00:00
Adrian Conlon d45c1d7d76 Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2019-11-16 23:38:05 +00:00
Adrian Conlon acf6cf6c71 Sync with .Net version 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-16 23:37:57 +00:00
Adrian Conlon e670482721 Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2019-11-12 22:40:33 +00:00
Adrian Conlon 9bc8d85795 Tidy the Z80 RES implementation a little. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-12 22:40:21 +00:00
Adrian Conlon 2d7f87018c Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2019-11-10 11:15:42 +00:00
Adrian Conlon d9f71a5d05 Add some more gameboy documentation 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-10 11:15:30 +00:00
Adrian Conlon 5e347b9414 Sync C++ Z80 implementation with C# 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2019-11-10 11:15:07 +00:00