Peter Evans
6b160c6ca2
Show the dereferenced value for a given address
2018-01-19 12:18:24 -06:00
Peter Evans
2c319399d2
Change disassembly to add more info
2018-01-19 00:34:57 -06:00
Peter Evans
d4bf5da480
Draw text in 40 column mode
2018-01-18 16:21:25 -06:00
Peter Evans
53f40ff960
Add tests for apple2.kb.c
2018-01-17 14:58:42 -06:00
Peter Evans
bf529d6c9b
Finish map, mapper handling for keyboard events
...
We still need to revise the test code we currently have for handling
keyboard functions; I imagine some code will need to be removed.
2018-01-17 01:07:31 -06:00
Peter Evans
8d4283b1dc
Add first work on keyboard support
...
Mainly the switch_read function, which had necessitated some work done
in the vm_screen area
2018-01-16 23:50:02 -06:00
Peter Evans
2b688c7815
Add last key, strobe fields
2018-01-16 23:49:34 -06:00
Peter Evans
9d6869bfc4
Add missing decls for switch read/write
2018-01-16 23:49:14 -06:00
Peter Evans
9811bbe450
Add switch read/write for display buffer switches
2018-01-16 23:48:49 -06:00
Peter Evans
b1177784a0
Allow access to the last key pressed and key_pressed status
2018-01-16 23:42:10 -06:00
Peter Evans
2c39120098
Rename video_mode -> display_mode
...
This also changes the _kind_ of field from an incrementally enumerated
one to a collection of bit flags.
2018-01-16 16:13:50 -06:00
Peter Evans
bcf6b213a6
Account for changes to rom segment structure
2018-01-16 15:46:35 -06:00
Peter Evans
a0a5132099
Add pc file for peripheral card ROM
2018-01-15 23:50:33 -06:00
Peter Evans
2db5c791ba
Remove peripheral rom init
2018-01-15 17:42:27 -06:00
Peter Evans
ac39349344
Reorganize ROM storage
2018-01-15 17:10:27 -06:00
Peter Evans
cadc19b3e5
Add display buffer read/write mappers
2018-01-13 15:40:40 -06:00
Peter Evans
45eb7b5e58
Add zero page memory mapper functions
...
This also adds tests for those functions. We have, furthermore, removed
some redundant (and non-externed!) functions from apple2.mem.c which was
the old bank switching code that got moved to apple2.bank.c.
2018-01-13 00:38:29 -06:00
Peter Evans
3738d70a43
Switch bank code into its own file
2018-01-12 22:06:49 -06:00
Peter Evans
c953616a71
Finish refactor to separate bank_switch and memory_mode
...
There is one failing test, which I expect to fail at this point; that's
because we need to write a read/write map function for the stack and
zero page so that they use aux memory when BANK_ALTZP is on, and main
memory when not.
2018-01-12 21:04:21 -06:00
Peter Evans
ceccacfbc8
Rework bank switch and memory mode into their own fields.
...
This is to better define and respect the various modes that you can have
in Apple II memory access. This is a work in progress at the moment.
2018-01-12 16:21:49 -06:00
Peter Evans
f69454c965
Some soft switches now require consecutive reads
...
To allow this to work, we had to allow the CPU struct to record what the
last opcode/operand/address were, although in truth we only needed the
last address.
2018-01-12 14:49:27 -06:00
Peter Evans
7d6886a3a8
Change last_addr field to eff_addr
2018-01-12 13:57:48 -06:00
Peter Evans
9564f86a57
Remove flash_memory function
2018-01-11 21:57:52 -06:00
Peter Evans
578e0b291c
Allow us to switch main/aux; write bank switch mappers
2018-01-11 19:52:13 -06:00
Peter Evans
9d2f9b6f60
Refactor to remove ram2
...
Both main and auxiliary memory need to keep an extra 4k of memory that
is bank-switchable, so we have changed to store that memory literally
within the main and aux segments.
2018-01-11 13:19:17 -06:00
Peter Evans
8d9b48912e
Add memory injection to 6502; main memory in apple2
...
Note that memory _is_ now managed in apple2, and _not_ in mos6502.
2018-01-10 21:28:05 -06:00
Peter Evans
04854d903c
Add aux memory field
2018-01-10 20:36:44 -06:00
Peter Evans
8898c3e59d
Use macros to define segment read/write map functions
2018-01-10 20:12:48 -06:00
Peter Evans
3db536a83d
Change memory_mode -> bank_switch
...
This also changes the concept of the field; bank_switch is a collection
of bit flags now.
2018-01-10 19:59:33 -06:00
Peter Evans
538b5ddaa0
Add address for reset vector, applesoft, powerup
2018-01-10 16:47:45 -06:00
Peter Evans
fcba14f91b
Add set16 function
2018-01-10 16:43:14 -06:00
Peter Evans
a785eb5665
Remove next_byte, read_byte; remove opcode from execute
...
The execute function should just work from the PC register. It might
seem to be easier to test by passing an arbitrary opcode into the
function, but because so much of the chip's execution is
context-sensitive (that is, it expects PC to be pointing at the opcode,
to have its operand in front of it, etc.), passing an arbitrary opcode
is not really reflective of what needs to be in place for the function
to work correctly.
2018-01-09 20:56:11 -06:00
Peter Evans
0e0244162f
Change objstore structure to contain all peripheral ROM
2018-01-09 15:56:21 -06:00
Peter Evans
01174b63dd
The data in objstore_data was not in the correct order.
...
See also the change in tools/store-data; the system rom was first, when
the disk2 rom should have been first.
2018-01-08 16:19:41 -06:00
Peter Evans
b2add9c3de
Move vm_area logic into its own file
2018-01-07 20:05:02 -06:00
Peter Evans
95e57a8e19
Add get_map_machine function.
...
Mostly useless except for testing.
2018-01-07 20:00:09 -06:00
Peter Evans
ba47de0e4b
Add objstore_clear(), tests for objstore
2018-01-07 16:30:33 -06:00
Peter Evans
888eb25797
Refactor a bit for easier testing; add log_stream()
2018-01-07 15:05:20 -06:00
Peter Evans
665f7de37c
Rename apple2dd_ to apple2_dd_
...
Except for the struct object (apple2dd).
2018-01-07 13:44:07 -06:00
Peter Evans
8ad1311536
Add set_memory function
2018-01-06 21:37:15 -06:00
Peter Evans
610068cb8b
Add missing decl for apple2_reset()
2018-01-05 16:20:13 -06:00
Peter Evans
70516a7f91
Add function to return 16-bit value from a segment address
2018-01-05 16:14:51 -06:00
Peter Evans
1de1e7788a
Rename status flags to MOS_
2018-01-05 14:18:39 -06:00
Peter Evans
171ff62551
Change create to use objstore vm_8bit data
2018-01-03 21:50:30 -06:00
Peter Evans
06d37d24d7
Allow us to call objstore_init more than once.
...
This also separates some code into objstore_ready().
2018-01-03 21:49:26 -06:00
Peter Evans
90d6c637c5
Add function to copy a buffer into a segment
2018-01-03 21:10:25 -06:00
Peter Evans
4d07bd7640
Add objstore code, tests
2018-01-03 20:51:20 -06:00
Peter Evans
fd4b135d5a
Add compiled object store data
2018-01-03 20:49:52 -06:00
Peter Evans
6963883a60
Define the size of the bitmap font for apple2
2018-01-03 20:48:16 -06:00
Peter Evans
86dad129b6
Let us fread into a segment offset
2018-01-03 15:16:30 -06:00
