Apple-2-SW/Applerm-II
1
0
Fork 0
mirror of https://github.com/toyoshim/Applerm-II.git synced 2024-06-12 14:29:27 +00:00
Code Issues Projects Releases Wiki Activity
55 Commits 1 Branch 0 Tags 70 KiB
2d6878d2a7
Commit Graph

55 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Takashi Toyoshima
2d6878d2a7 Polish VRAM access to TTY TX emulation 
It assumes Apple BASIC's manner of controlling screen.
Apple BASIC may be able to work exactly like running through
a virtual terminal device.
 2014-12-13 02:32:04 +09:00
Takashi Toyoshima
35bb8b7083 Implement an experimental VRAM to TTY bridge 2014-12-11 04:29:19 +09:00
Takashi Toyoshima
a90dca2a01 Now Apple BASIC work on LPC1114 with 2K free RAM 2014-12-11 01:19:39 +09:00
Takashi Toyoshima
7568e2aeac Add UART receive functions 2014-12-11 00:27:35 +09:00
Takashi Toyoshima
02c08505eb Implement I/O for lpc1114 
Now Apple BASIC can run on the LPC1114 device :)
 2014-12-09 04:54:33 +09:00
Takashi Toyoshima
826647fb93 Update test: now it can run Apple BASIC. 
]10 PRINT "HELLO"

]20 END

]LIST

10  PRINT "HELLO"
20  END

]RUN
HELLO

]
 2014-12-08 04:19:05 +09:00
Takashi Toyoshima
faacc4ea52 Bug fix: op7e ROR did not store result 
- also fp should be saved as 32bit register
 2014-12-08 03:38:58 +09:00
Takashi Toyoshima
47d7fb8749 Bug fix: 0x26 is not ROR but ROL 2014-12-08 03:23:08 +09:00
Takashi Toyoshima
4994158c0c Bug fix: 0x2a is not ROR but ROL 2014-12-08 03:19:08 +09:00
Takashi Toyoshima
7dcce64f10 Bug fix: bit 2014-12-08 03:18:54 +09:00
Takashi Toyoshima
5465cc99d2 Update test.c to check Apple BASIC behaviors 2014-12-08 03:11:03 +09:00
Takashi Toyoshima
3f2daf7b08 Bug fix: data was broken on absolute and absolute indexed destination 
Now it can show "Apple ][" logo by using Apple BASIC ROM!!
 2014-12-08 03:01:27 +09:00
Takashi Toyoshima
62b69b5458 Bug fix: TSX was still wrong 2014-12-08 02:49:17 +09:00
Takashi Toyoshima
77fa2964f1 Bug fix: stack is hard :( 
SP should wrap correctly on push and pop
 2014-12-08 02:43:05 +09:00
Takashi Toyoshima
9098230d7d Bug fix: conditions are hard :( 2014-12-08 02:35:47 +09:00
Takashi Toyoshima
2ad2fa6efb Bug fix: BRK should set I flag 2014-12-08 00:50:05 +09:00
Takashi Toyoshima
729cac78a0 Bug fix: INX did not store the result correctly 2014-12-08 00:46:38 +09:00
Takashi Toyoshima
82990fdab7 Bug fix: B and reserved flag should not be modified on updating SR 2014-12-08 00:44:42 +09:00
Takashi Toyoshima
42cb53c0ad Bug fix: after TSX, X got a value >= 0x100 2014-12-08 00:36:42 +09:00
Takashi Toyoshima
d0ad06c86a Use 6502_65C02_functional_tests, and two bug fixes 
- transfer operations should update n and z flags
 - TSX should transfer SP, not SR
 2014-12-08 00:21:49 +09:00
Takashi Toyoshima
1f39658a0b Bug fix: toAbsb can not store the right value 2014-12-07 19:02:33 +09:00
Takashi Toyoshima
064567f346 Bug fix: adc and sbc performed wrong carry flag calculation 2014-12-07 19:01:33 +09:00
Takashi Toyoshima
86d07009b1 Add some I/O and memory emulation to check Apple2 BASIC 2014-12-07 18:31:41 +09:00
Takashi Toyoshima
91c94746d8 Bug fix: manage r12 correctly, and TXS used a wrong register 
To use r12 in assembly code:
 - use -fomit-frame-pointer for test.c
 - save and restore on calling libc functions
 2014-12-07 16:35:46 +09:00
Takashi Toyoshima
dbf8142e61 Bug fix on shift operations again. Other macros broke T0. 2014-12-07 15:51:59 +09:00
Takashi Toyoshima
e419d9da69 Bug fix: absolute and absolute indexed fetched wrong address 2014-12-07 15:15:06 +09:00
Takashi Toyoshima
c5d69f2c14 dec and inc was swapped, and results are not stored correctly 2014-12-07 15:10:05 +09:00
Takashi Toyoshima
c3c8eafc07 Bug fix on sbc, C was reversed, and result was not stored on V=0 2014-12-07 15:02:40 +09:00
Takashi Toyoshima
8ff302aaf0 Bug fix: cmp didn't take Z flag 2014-12-07 14:47:46 +09:00
Takashi Toyoshima
51faf4afb1 Bug fix: brannch target calculation was still wrong 2014-12-07 14:44:00 +09:00
Takashi Toyoshima
21b25243d7 Bug fix: bit and cmp operations didn't increment PC 2014-12-07 14:32:52 +09:00
Takashi Toyoshima
ff26481127 Bug fix on adc condition flag updates 2014-12-07 14:29:14 +09:00
Takashi Toyoshima
ff1f7b8b2f Fix branch operation bugs 
- address calculation on not taken
 - use macro to implement each branch operation
 2014-12-07 14:05:38 +09:00
Takashi Toyoshima
8d94c76d47 Bug fix on shift operations that set a result to a wrong register 2014-12-07 13:54:47 +09:00
Takashi Toyoshima
bc8b0b0906 Bug fux: absolute and absolute indexed didn't increment PC correctly 2014-12-07 13:35:20 +09:00
Takashi Toyoshima
7370d07645 Implement _sbc. They must have many bugs, but anyway, finished. 2014-12-07 12:56:02 +09:00
Takashi Toyoshima
14fa2b22c3 Implement _adc, ...sigh :( 2014-12-07 12:38:48 +09:00
Takashi Toyoshima
90feea53ed Implement _cp and _inc 2014-12-07 11:47:22 +09:00
Takashi Toyoshima
b86a32323e Implement all ops, except for macros, _adc, _cp, _inc, _sbc 2014-12-07 02:13:45 +09:00
Takashi Toyoshima
8301b1e97e Implement op -0xde 2014-12-07 02:03:38 +09:00
Takashi Toyoshima
677b893b40 Implement op -0xd0 (except for _adc and _cp macros) 2014-12-07 01:58:56 +09:00
Takashi Toyoshima
4f71331f06 Implement op -0xbf 2014-12-07 01:50:39 +09:00
Takashi Toyoshima
f694a16d58 Implement op -0xaf 2014-12-07 01:45:07 +09:00
Takashi Toyoshima
4a3cf30de1 Implement op -0x8f 2014-12-07 01:20:36 +09:00
Takashi Toyoshima
34f60ed8b6 Implement op -0x7f (turning point!) 2014-12-06 23:29:28 +09:00
Takashi Toyoshima
428c8b54c5 Implement op -0x6f (except for _adc macro) 2014-12-06 23:24:53 +09:00
Takashi Toyoshima
8e22cfe6cf Implement op -0x5f 2014-12-06 23:14:21 +09:00
Takashi Toyoshima
4c3a822893 Implement op -0x4f 2014-12-06 23:08:34 +09:00
Takashi Toyoshima
fb81353de3 Implmenet op -0x3f 2014-12-06 22:50:50 +09:00
Takashi Toyoshima
124bfa1941 Implement op -0x2f 2014-12-06 22:45:05 +09:00