Peter Evans
550eab742e
Move hdump into correctly sorted slot
2018-03-09 16:51:12 -06:00
Peter Evans
74e8a30a4c
Disassemble flag now works as intended
2018-03-09 16:46:04 -06:00
Peter Evans
87c7aa9249
Add hexdump function for vm_segment
2018-03-09 16:45:20 -06:00
Peter Evans
1ff5d17f19
Add hexdump command
2018-03-09 16:44:53 -06:00
Peter Evans
267171ea4a
Change to option_open_file(), allow any file mode
2018-03-09 16:44:20 -06:00
Peter Evans
1235197418
Only fprintf if we know stream is not NULL
2018-03-07 21:24:29 -06:00
Peter Evans
dda7ae6288
When paused for the debugger, output should go to stdout
2018-03-07 21:24:15 -06:00
Peter Evans
d791ebbe2f
Remove some unnecessary comments
2018-03-07 21:07:39 -06:00
Peter Evans
4d2f4ffd5f
Set width/height as soon as we parse
2018-03-07 20:55:04 -06:00
Peter Evans
14123882c2
Use vm_di_get for file streams to close them
2018-03-07 20:54:46 -06:00
Peter Evans
f555196080
Test for !OK with system data addresses
2018-03-07 20:42:27 -06:00
Peter Evans
4d4fbdf79a
Switch to vm_di for option variable storage
...
Things like disk1, disk2, width/height, etc.
2018-03-07 20:25:39 -06:00
Peter Evans
58190f0c9b
Move notify_refresh into the proper file
2018-03-07 17:08:16 -06:00
Peter Evans
c3b86031bd
Add tests for primary, alternate functions
2018-03-07 17:00:11 -06:00
Peter Evans
9cbfcac783
Add missing docblock comments
2018-03-07 16:28:11 -06:00
Peter Evans
9f09be93a9
Implement (true? better?) framerate cycle
2018-03-07 16:20:29 -06:00
Peter Evans
f1c0716313
Include draw.h header
2018-03-07 15:33:09 -06:00
Peter Evans
b00442a1c4
Change width/height to 3x apple window size
2018-03-07 15:23:00 -06:00
Peter Evans
d5450bf743
Refresh once every 30th of a second
...
*Roughly...
2018-03-07 00:20:27 -06:00
Peter Evans
91291be889
Draw the full screen at boot time to emulate initial look
...
Which is to say, the initial look of @ symbols filling up your screen.
2018-03-07 00:19:51 -06:00
Peter Evans
b2df144850
Remove blank-space render to speed up render time
2018-03-07 00:15:25 -06:00
Peter Evans
7edf0c5dbd
Display @ symbols on startup
...
There's actually a lot going on here to make the @ symbol display
happen.
The @ symbols are the visual representation of NUL-character bytes. They
are inverse video, as dictated by the Apple //e technical reference. As
part of the bootup sequence, those bytes are overwritten with space
characters.
As part of the work, we now have a table of rows and columns that map to
display buffer addresses.
2018-03-06 22:12:41 -06:00
Peter Evans
1a6d8b6ced
Actually do render control characters
2018-03-06 12:46:33 -06:00
Peter Evans
136d019f7a
Show non-inversed text for Apple //e
2018-03-06 12:41:30 -06:00
Peter Evans
9562dd19ce
Rewrite dd to use phases and half-track steps
...
Phases will yet be the death of me. THE DEATH OF ME.
2018-03-03 21:29:19 -06:00
Peter Evans
998a139c00
Use state machine for stepper motor changes
2018-03-02 16:42:22 -06:00
Peter Evans
c5d1542937
Show correct PC counter in scan
2018-03-01 21:37:10 -06:00
Peter Evans
b239cac239
Add dblock command to disassemble blocks of code
2018-03-01 19:31:56 -06:00
Peter Evans
f8bda4ebd3
Remove modify_status() function
...
Also rewrite tests to use macros
2018-02-28 21:40:52 -06:00
Peter Evans
8d0cf264d7
Add missing NZ checks in INC and DEC
2018-02-28 21:34:58 -06:00
Peter Evans
49199eac84
Rewrite status checks with macros
...
This also forces the result of operations to be considered purely as
8-bit results in _some_ cases, but not in others. We were missing some
times when an overflow is the expected behavior; because SET_RESULT()
and mos6502_modify_status() use ints, this overflow was not properly
observed.
2018-02-28 21:16:39 -06:00
Peter Evans
4baec33e24
We should check status for PLX/PLY
2018-02-28 19:53:26 -06:00
Peter Evans
edd175c1f9
Add disasm command (toggle disassembly)
2018-02-26 20:52:13 -06:00
Peter Evans
30c07df9cb
When carry is set, subtract one fewer, not one more
...
A subtle misunderstanding... which led to bizarre and unexpected
behavior elsewhere.
2018-02-26 18:59:25 -06:00
Peter Evans
fec8ef0743
Allow $XX hex notation
2018-02-26 14:21:20 -06:00
Peter Evans
5bb76164dc
Add missing docblocks for vm_debug.c
2018-02-26 14:10:16 -06:00
Peter Evans
1cec80cead
Don't immediately pause
2018-02-26 13:54:32 -06:00
Peter Evans
7ad0ad8024
Unbreak current PC in resume; use addr2 in writestate
...
(Addr1 never worked, so ws was essentially non-functional in practice,
but it passes its tests when you assume execute() does the right thing!)
2018-02-25 16:12:15 -06:00
Peter Evans
aa53fdd77e
Erase strings before we print anything else
...
If you print something without an operand, you may end up printing the
last instruction's operand unless you do that wipe
2018-02-25 16:06:27 -06:00
Peter Evans
67c7790a1a
Show current opcode
2018-02-25 15:52:37 -06:00
Peter Evans
e50fda62be
Add step command
2018-02-25 15:41:37 -06:00
Peter Evans
01f230dc85
Add unbreak command, unbreak_all() function for testing
2018-02-25 14:38:24 -06:00
Peter Evans
c17616c383
Execute will no longer run if PC is at a breakpoint
2018-02-25 14:27:47 -06:00
Peter Evans
588362abee
Add prompt; quit command; breakpoints
2018-02-25 14:25:02 -06:00
Peter Evans
d4891a3fbf
No, really, add the writeaddr command
2018-02-24 19:38:55 -06:00
Peter Evans
09f7152e07
Add writeaddr command
2018-02-24 19:38:04 -06:00
Peter Evans
06bf63ecb2
Add jump debug command
2018-02-24 19:36:02 -06:00
Peter Evans
1be1abc0af
Add printaddr, printstate
2018-02-24 18:57:00 -06:00
Peter Evans
ec253905ad
Add resume command, finder function, arg parser, execute
2018-02-24 16:30:46 -06:00
Peter Evans
a614c1e5df
Add new file, vm_debug.c, and help command for it
2018-02-23 21:58:30 -06:00
