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215 Commits

Author SHA1 Message Date
Adrian Conlon
8d3551e681 Refactor bit set/get routines from processor class to lower level chip class. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-09-29 14:08:44 +01:00
Adrian Conlon
fe3794e011 Simplify register16_t usage a little. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-09-16 12:00:29 +01:00
Adrian Conlon
7d840f1a42 Modifying the manner in which memory is mapped, allows a fairly clean mechanism for loading Intel "hex" files. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-09-15 14:35:59 +01:00
Adrian Conlon
97272d650d Simplify processor bus access a little by further allowing register16_t address access. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-29 13:52:25 +01:00
Adrian Conlon
a8cc289149 Whoops: The "Bus" class *really* isn't allowed to know the "endianness" of the attached processor! 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-27 11:27:33 +01:00
Adrian Conlon
1212e8d4f0 Tidy some processor virtual specifications. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-25 13:35:53 +01:00
Adrian Conlon
17c46264e9 Match the GameBoy code to the updated handling of reset (etc.) interrupts. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-25 01:57:22 +01:00
Adrian Conlon
6d4223c368 Start moving towards reset being just another style of interrupt. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-25 01:34:30 +01:00
Adrian Conlon
b0aacce406 Tidy header file usage a little. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-18 23:56:16 +01:00
Adrian Conlon
ed76038bfa More memptr adjustments 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-17 13:59:59 +01:00
Adrian Conlon
70c70af969 Sort out some exception and member initialisation rules. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-08-11 21:19:19 +01:00
Adrian Conlon
cac871cf2b Remove duplicated code (from const definitions) the performance benefit isn't worth the amount of duplicated code. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-06-24 20:58:20 +01:00
Adrian Conlon
feb5e7ad60 Simplifications carried over from the Z80 implementation. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-06-23 16:43:05 +01:00
Adrian Conlon
67487b5b6e Simplify the usage of the register16_t union. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-06-16 00:55:32 +01:00
Adrian Conlon
fbf098ae00 Simplify memory event handlers and ROM recognition a little (bit of speed difference) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-06-10 22:00:52 +01:00
Adrian Conlon
3e854c7c49 Const some more bus/processor usage, and ensure the data bus is a member, not a reference to memory. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-06-10 00:40:56 +01:00
Adrian Conlon
116f9961c4 Add a higher/lower nibble mask 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-05-25 22:36:10 +01:00
Adrian Conlon
ae177b9b92 Remove unnecessary member variable initialisation. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-05-04 04:12:25 +01:00
Adrian Conlon
740cf01085 Slightly better use of vector/array for pixel display. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-05-04 03:38:39 +01:00
Adrian Conlon
0b2c1fa084 Gameboy, some random tidy ups. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-05-02 02:47:47 +01:00
Adrian Conlon
4b4f6b1a49 Some *small* consistency changes. Perhaps some performance gains. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-04-11 23:53:26 +01:00
Adrian Conlon
45dc274167 Get rid of wrappers for bus access: i.e. make it clearer where the bus is being read/written. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-03-10 01:53:57 +00:00
Adrian Conlon
adf506a41e Optimisation: Prefer return by value to return by reference. ~10% speed-up! 
Just watch a video by Chandler Carruth from 2015, where he talked about C++ optimisers...

Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-02-25 19:48:01 +00:00
Adrian Conlon
d34b161255 Simplify some build options. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-02-19 23:18:21 +00:00
Adrian Conlon
29edc46966 Simplify some MEMPTR usage in Intel processors. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2018-01-10 23:08:14 +00:00
Adrian Conlon
697bfb636d A more succinct definition of the LR35902 interrupt mechanism. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-12-12 22:29:37 +00:00
Adrian Conlon
a1c753d63e Couple of small tidy ups on the LR35902 implementation. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-12-10 21:57:32 +00:00
Adrian Conlon
1edabd79f3 More pinout oriented method of executing instructions (especially interrupts) 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-12-10 21:41:48 +00:00
Adrian Conlon
23f7a88480 Further 8080/Z80 interrupt rewrite 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-12-03 00:57:47 +00:00
Adrian Conlon
befcda2c0e Linux build compatibility. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-27 21:33:23 +00:00
Adrian Conlon
c513f0cab1 GSL was too problematic when used with GCC. Removed. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-20 19:17:49 +00:00
Adrian Conlon
67c27d4a3e GSL + CPP core guidelines changes. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-18 14:29:30 +00:00
Adrian Conlon
dea1847280 Unify more VS2017 build configurations 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-12 10:38:05 +00:00
Adrian Conlon
0b6ef3d4dd VS2017 and CPP core guidelines updates 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-11 15:13:26 +00:00
Adrian Conlon
c18aeb9e63 More updates from the CPP core guidelines 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-11 11:12:09 +00:00
Adrian Conlon
46d7777dbe Bring LR35902 to VS2017 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-10 23:13:19 +00:00
Adrian Conlon
d4f1614ffa Updated for VS2017 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-10 23:01:10 +00:00
Adrian Conlon
437cc4ce89 LTO in gcc 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-04 23:52:15 +00:00
Adrian Conlon
d408bfe022 Updated build to C++ 14 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-04 12:44:38 +00:00
Adrian Conlon
c292fb552e A whole bunch of consistency changes. No functional changes. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-11-03 22:05:01 +00:00
Adrian Conlon
ff13e9afc9 Get the LR35902 test suite up and running again. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-28 13:08:07 +01:00
Adrian Conlon
e17e98a6fd Correct constructor initialisation ordering in GameBoyBus 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-24 22:10:02 +01:00
Adrian Conlon
a22e59546b Tidy the gameboy core a little. Mainly by moving the execution loops into the bus class. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-24 00:04:13 +01:00
Adrian Conlon
774b181008 Whoops: correct accidental fall through in GameBoyBus handler. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-23 21:39:31 +01:00
Adrian Conlon
a065199098 Tidy up some leftover work from the scanline rendering update. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-22 21:25:06 +01:00
Adrian Conlon
6ae1d9c492 Update linux Makefile 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-19 22:46:49 +01:00
Adrian Conlon
94604b355d Tidy up include file usage. 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-19 22:43:09 +01:00
Adrian Conlon
b6396a8d2d Update linux build 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-19 21:13:05 +01:00
Adrian Conlon
156cb66904 Split the bus into IoRegisters and "the rest" 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-05 11:24:36 +01:00
Adrian Conlon
e8715b941b Explicit use of OAM and VRAM 
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
 2017-10-04 18:00:53 +01:00