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Author SHA1 Message Date
Adrian.Conlon
4d322aeeb3 More GB tests fixed 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 23:01:52 +01:00
Adrian.Conlon
4a0d2dd930 Miscellaneous GB tests fixed. No surprises. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 22:51:15 +01:00
Adrian.Conlon
e6c4199b2a More miscellaneous GB tests fixed. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 22:11:43 +01:00
Adrian.Conlon
fb13d9fdce Correct GB: SWAP r operation. The demoted high nibble was being effectively zeroed each time. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 21:34:19 +01:00
Adrian.Conlon
c10dced63e Add test for GB SWAP r instructions. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 21:31:28 +01:00
Adrian.Conlon
6bbd7392dc LR35902 clears the half-carry flag on a CCF 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 19:51:42 +01:00
Adrian.Conlon
f41050b60c Add working test for 3a: LDD A,(HL) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 12:52:30 +01:00
Adrian.Conlon
ca1176f0bb Fix test 32: LDD (HL),A from GB programming manual. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 12:02:45 +01:00
Adrian.Conlon
3355179884 Fix test for 2a: LDI A,(HL) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 11:48:01 +01:00
Adrian.Conlon
a739c0eddf Use daa examples from GB programming manual for tests. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-13 11:07:01 +01:00
Adrian.Conlon
c84b757ad9 Move GB documentation to be closer to the LR35902 implementation. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-12 23:55:56 +01:00
Adrian.Conlon
dd873d9761 Start adding LR35902 tests, where wrong. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-12 23:54:53 +01:00
Adrian.Conlon
a24581caee Add comments pointing out GB specific instructions in the test input suite. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-12 15:48:15 +01:00
Adrian.Conlon
37c86fa5cf All comments in the LR35902 test input file 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-12 15:47:03 +01:00
Adrian.Conlon
0084d962c1 Unused Z80 prefixes removed from the test suite. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-12 14:49:32 +01:00
Adrian.Conlon
78e5451f93 Remove remaining Z80 -> LR35902 test translation code. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-12 14:29:12 +01:00
Adrian.Conlon
e7001b2425 Now runs the first pass of the translated Z80 tests as LR35902 style instructions 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-12 14:22:10 +01:00
Adrian.Conlon
5526892e2f Adjust for the differences between Z80 LR35902 flags (TBC!) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-11 23:16:24 +01:00
Adrian.Conlon
42b1b7dc53 Add a one off converter for Z80 -> LR35902 fuse tests (TBC!) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-10 23:46:41 +01:00
Adrian.Conlon
f0515ae65f First stab at a port of the fuse tests to LR35902. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-10 20:34:17 +01:00
Adrian.Conlon
7948962d70 Because of its boot room, the LR35902 needs a custom clear mechanism. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-10 20:30:37 +01:00
Adrian.Conlon
787d9dd799 Missed an easy "assume" entry 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-08 13:38:27 +01:00
Adrian.Conlon
9fcb349e1f Brought the LR35902 a little closer to the Z80 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-08 13:32:51 +01:00
Adrian.Conlon
99c2e2a719 Tidy up the 10 addressing mode write set to make it clearer when memory writes occur. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-07 21:25:21 +01:00
Adrian.Conlon
aa720c4c12 Pass all Klaus Dormann tests again: correct AM_10 write algorithm. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-07 21:02:31 +01:00
Adrian.Conlon
ab20fc6107 Place Z80 documentation close to the Z80 emulator. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-07 09:30:04 +01:00
Adrian.Conlon
88d773708c Correct some outstanding LR35902 problems arising. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-06 22:04:13 +01:00
Adrian.Conlon
016b3bca59 Switch to a memory read/write event driven model. All tests passing. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-08-06 17:06:48 +01:00
Adrian.Conlon
261433bd6e Remove unneeded 16-bit operations. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-27 21:44:24 +01:00
Adrian.Conlon
569e1925ce Merge branch 'master' of https://github.com/MoleskiCoder/EightBit 2017-07-25 21:23:27 +01:00
Adrian.Conlon
8535efb30d More i8080 and LR35902 consistency. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-25 21:22:15 +01:00
Adrian.Conlon
1b11e0750b Try to make the 8080 emulator a little more like the LR35902 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-25 20:52:10 +01:00
Adrian.Conlon
fbf797a610 More unification of "IntelProcessor" derived classes. This time the i8080. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-25 19:26:21 +01:00
Adrian.Conlon
b6dd48ca63 Some more small clarifications of shared processor implementation. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-25 18:56:43 +01:00
Adrian.Conlon
ff21263b97 Correct a couple of small disassembly issues in the 8080 implementation 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-07-25 14:32:31 +01:00
Adrian.Conlon
2ae4e8331e Replace old i8080 disassembler with new (z80) style. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-07-25 14:12:34 +01:00
Adrian.Conlon
dfc02c7e54 Remove pointless comment. 
Signed-off-by: Adrian.Conlon <adrian.conlon@arup.com>
 2017-07-24 22:02:55 +01:00
Adrian.Conlon
c0c969c560 Use a z80 style instruction decoder for the i8080 emulator. 2017-07-24 22:00:49 +01:00
Adrian.Conlon
ad9d37237f Put i8080 instructions into their own region 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-23 10:26:53 +01:00
Adrian.Conlon
8f18a128cd First step of moving to an instruction decoder, rather than a lookup table. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-22 23:52:58 +01:00
Adrian.Conlon
99c1e8e2f1 Correct 8-bit signed integer display problem in disassembler. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-22 14:07:26 +01:00
Adrian.Conlon
9a264c7c06 Bring the LR35902 and i8080 increment/decrement implementations in line with the Z80. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-22 10:23:13 +01:00
Adrian.Conlon
19966f6ad8 Z80 eight bit increment/decrement can be simplified a little 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-22 10:05:35 +01:00
Adrian.Conlon
0a02c32695 Some things (namely shift.rotate instructions) don't need to be quite so close to the Z80 implementation. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-21 19:23:36 +01:00
Adrian.Conlon
beca76d733 Share instruction decoding mechanism between Intel derived processors. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-21 13:33:17 +01:00
Adrian.Conlon
7c3fc469a8 Bring LR35902 a little closer to the Z80 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-20 12:37:54 +01:00
Adrian.Conlon
d0e98fa585 Fix a missing file issue in the fuse test project. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-20 12:17:37 +01:00
Adrian.Conlon
bbbde22322 Modify some of the Z80 daa code to better reflect bool/integer differences. 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-20 12:17:03 +01:00
Adrian.Conlon
1ee9a010b5 Finally: a working daa 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-20 10:42:18 +01:00
Adrian.Conlon
9c240b7ea8 Correct for CF not being the first bit of the flags register (why!!!!) 
Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
 2017-07-19 23:16:17 +01:00