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Author SHA1 Message Date
Adrian.Conlon
f970c45005 Get the loop exit conditions worked out. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-06 21:32:52 +01:00
Adrian.Conlon
04fd979e56 6502: Better wrapping for the executing/executed events to avoid "fetchByte" issue. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-06 12:02:41 +01:00
Adrian.Conlon
4cd2dc68e1 Correct some (but not all!) project configuration anomalies. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-05 19:36:25 +01:00
Adrian.Conlon
d4b133e9ac Show cycles per second as MHz 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-05 19:15:58 +01:00
Adrian.Conlon
7910ada7fa First stab at a running M6502 test suite. Running Klaus Dormann tests 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-05 17:46:02 +01:00
Adrian.Conlon
6db32ae7c5 Small consistency change in the 8-bit memory model. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-05 17:44:47 +01:00
Adrian.Conlon
0e7ad4dd01 Correct a couple of inconsistencies in the test harness. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-05 17:40:16 +01:00
Adrian.Conlon
983639d530 Correct a couple of header issues in the test harness. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-04 13:00:23 +01:00
Adrian.Conlon
f52edaf8bc Tidy up 16-bit add/subtract to properly use MEMPTR. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-03 21:42:18 +01:00
Adrian.Conlon
8f84d57fe1 A few small tidy ups. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-02 22:23:20 +01:00
Adrian.Conlon
88d3e4fd47 Initial stab at getting MOS6502 imported to the EightBit library. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-02 22:03:33 +01:00
Adrian.Conlon
6af1857cb0 A few minor consistency tweaks to the i8080 and z80 processors. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-02 17:38:19 +01:00
Adrian.Conlon
8f57fac3ee Use the same optimisation techniques on the Z80 header. Up to 233Mhz now. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-29 21:35:52 +01:00
Adrian.Conlon
3439523865 Some more optimisations, up to 225Mhz now. 
Reordered if statements to give "then" case "expected"
Better use of "__assume" in switch statements

Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-29 21:25:58 +01:00
Adrian.Conlon
10ed04bf90 Update README.md 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-29 18:44:30 +01:00
Adrian.Conlon
366c3fc601 Simplification of bitwise operators. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-29 12:19:22 +01:00
Adrian.Conlon
ea4588992d Whoops: missing switch/break was falling into an assume(0). Caused two fuse tests to fail... 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-29 10:18:07 +01:00
Adrian.Conlon
954887217f Performance mods: probably about 30% speedup: the best yet. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-29 00:50:34 +01:00
Adrian.Conlon
7582d65ea3 Lots more method tidy ups in search of performance. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-28 15:39:31 +01:00
Adrian.Conlon
35efc86195 Simplify the use of the REFRESH register 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-27 14:02:29 +01:00
Adrian.Conlon
c803387023 A few modifications: 
1) Simplify REFRESH register handling via bit fields.
2) Use static methods in the Z80 emulator, if at all possible
3) Use a decoded opcode lookup, rather than decoding per instruction

Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-26 23:22:32 +01:00
Adrian.Conlon
d22b695682 Modify test harness to show host CPU cycle efficiency. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-25 23:48:15 +01:00
Adrian.Conlon
a7d9cb0116 Fix an optimisation instruction ordering issue: fetchByte on both rhs/lhs. 
This caused two failing tests in the debug build of the fuse test suite.

Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-24 21:38:42 +01:00
Adrian.Conlon
993fe5d2b4 Correct position of fuse test input. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-24 11:00:19 +01:00
Adrian.Conlon
67174d74af Correct some memory access issues in LR35902 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-23 21:23:20 +01:00
Adrian.Conlon
af375ab10f Some more shared code. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-22 19:00:53 +01:00
Adrian.Conlon
f776379e96 Share flag adjustments across implementations using templated methods. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-22 16:57:38 +01:00
Adrian.Conlon
529aa1bd21 Tidy profile output 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-22 10:27:19 +01:00
Adrian.Conlon
23b5a5d579 Tidy the test harness a little. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-22 10:16:02 +01:00
Adrian.Conlon
8927f412d4 Use a shared test harness. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-21 23:55:25 +01:00
Adrian.Conlon
5a3713fc8a First stab at efficiency timing support for 8080 and z80 test runners. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-21 21:05:07 +01:00
Adrian.Conlon
052df61250 Remove get/getWord and set/setWord from memory class. Just use address and data lines on the memory. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-20 14:09:44 +01:00
Adrian.Conlon
a4f8770eb0 Correct a couple of small compilation issues. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-19 18:08:13 +01:00
Adrian.Conlon
67fa2a7afe Incorporate disassembly into address profile output. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-19 17:37:41 +01:00
Adrian.Conlon
c7e65f5447 Consistency changes to the projects. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-19 13:53:37 +01:00
Adrian.Conlon
c9bf24d1fa Tidy up register and static method access. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-19 13:53:00 +01:00
Adrian.Conlon
23108a8536 Bring performance back to par by: inlining and static flag register access, where possible. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-18 18:14:39 +01:00
Adrian.Conlon
5f288cf0e3 Some more small tidy ups. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-06-16 20:31:32 +01:00
Adrian.Conlon
327d391ecb Remove another chunk of shared code. This time by ensuring the basic layout of registers is consistent. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-16 13:52:10 +01:00
Adrian.Conlon
c52f0a36aa Small performance change to 8080 reserved flags. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-16 13:35:08 +01:00
Adrian.Conlon
dc1f7ad1d5 Remove some commented header includes. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-16 01:59:11 +01:00
Adrian.Conlon
675b82b5af Move to a more standard flag representation for the 8080 2017-06-16 01:58:12 +01:00
Adrian.Conlon
71e6902aeb Simplify and remove a bunch of code. Getting there! 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-15 22:21:26 +01:00
Adrian.Conlon
705351d179 Small tidy up on the block instructions to separate PC changes. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-14 22:33:02 +01:00
Adrian.Conlon
1643844eaf Whoops: Roll back a "simplification" to the IX/IY + displacement handlers. Caused to failing "fuse" tests. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-14 20:14:32 +01:00
Adrian.Conlon
e6eab35d0e Correct a couple of warnings in the 8080 code 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-14 20:13:37 +01:00
Adrian.Conlon
66d3a5ae29 Couple of small simplifications. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-13 23:43:21 +01:00
Adrian.Conlon
828e081a6e More tidying of shareable code 2017-06-12 14:33:00 +01:00
Adrian.Conlon
8f3aef1c3e Make LR35902 a little more like the Z80 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-11 23:56:11 +01:00
Adrian.Conlon
eb8a93726d Correct a few small LR35902 issues. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-06-11 22:07:48 +01:00