6c789e3787
build: add small makefile with a test command that colors go test output
2020-06-04 21:07:12 -06:00
63a218e073
cmd/{root,run,version}: update the main pkg to be a CLI
2020-06-04 20:59:11 -06:00
67416900b4
internal/vm: update Appleone and all it’s `a` handlers to VM with `vm` handler
2020-06-04 20:47:35 -06:00
b7a3ec4a6c
internal/vm/{cpu,exec_funcs,opcodes,vm}: rename op -> operation for clarity (I hope), also general refactors
2020-05-31 22:50:07 -06:00
1b3f1f5b1f
internal/vm/exec_funcs: remove the todo exec func!
2020-05-31 22:23:02 -06:00
fea9257e84
internal/vm/{exec_funcs,vm}: refactor flag get/set/clears
...
Hit me like a brick wall, remove all the specific flag get/set/clear funcs
in favor of a single getFlag, setFlag, and clearFlag funcs that take a flag
(byte) as its argument.
2020-05-31 22:20:08 -06:00
2a17dda142
internal/vm/{cpu,mem,opcodes,vm}: stick to using byte instead of uint8
...
I can never decide on these things but I generally
prefer using `byte` in go.
2020-05-31 21:47:05 -06:00
01bb2379ce
internal/vm/{exec_funcs,opcodes,vm}: update design around opcode addr and operand fetching
...
Refactor:
`(o op) getAddr` -> `(a *Appleone) getAddr`
`(o op) getOperand` `(a *Appleone) getOperand`
This makes way more sense to me and has been bothering me for a while.
2020-05-31 21:41:47 -06:00
e5709ad58b
Internal/vm/{exec_funcs,opcodes}: missed one, add exec func for BCS opcode
2020-05-31 21:34:48 -06:00
a9a3ae5c0a
internal/vm/{exec_funcs,opcodes,vm}: implement the rest of the opcode exec funcs
2020-05-31 21:32:00 -06:00
ca699a78af
internal/vm/{exec_funcs,opcodes,vm}: add support for executing LDX, LDY, and ADC
2020-05-31 09:59:58 -06:00
3730835466
Merge branch 'master' of github.com:bradford-hamilton/apple-1
2020-05-31 09:42:12 -06:00
da70e2cfe3
internal/vm/{exec_funcs,opcodes}: add support for executing DEY, DEX, TAY, TAX opcodes
2020-05-31 09:41:57 -06:00
3743c0b0d8
internal/vm/{exec_funcs,opcodes}: add support for executing DEY, DEX, TAY, TAX opcodes
2020-05-31 09:38:10 -06:00
00cec5678e
internal/vm/{exec_funcs,opcodes}: add support for executing INX
2020-05-31 08:59:09 -06:00
35bdeac2c8
internal/vm/{exec_funcs,opcodes}: handle INX instruction execution
2020-05-30 17:14:13 -06:00
71a1fa30ec
merge small self-imposed conflict
2020-05-30 17:07:23 -06:00
8d6a0f8fd3
internal/vm: start playing with op executions
...
So far the pattern feels a tiny bit weird but also has been nice to work
with. As you can see, the op now contains it’s instruction execution func
which can be called directly from the op.
2020-05-30 17:06:36 -06:00
d36d9c829a
internal/vm: start playing with op executions
...
So far the pattern feels a tiny bit weird but also has been nice to work
with. As you can see, the op now contains it’s instruction execution func
which can be called directly from the op.
2020-05-30 17:06:14 -06:00
2bd748fccd
docs: update some funcs with light docs
2020-05-30 11:13:35 -06:00
cdca8f735d
internal/vm: add the first few opcode handlers
...
Still a little iffy on the code design, although this seems like it
could be a desirable pattern. This way I would have to write an opcode
handler for all the cases and register it to the “op”. That way step
calls are super simple from Appleone’s point of view -> get the operation
and that operation has everything needed to execute on the vm.
2020-05-30 11:03:58 -06:00
e91c4cdbca
deps: initialize as go module
2020-05-30 11:01:48 -06:00
275143cf83
internal/cpu: small refactors to naming/comments
2020-05-28 08:04:12 -06:00
11dc1bdad9
internal/cpu: add cpu status register flags
2020-05-27 22:08:30 -06:00
f77b94f885
internal/{cpu,vm}: add memory to the vm, and refactor cpu/vm/memory code
2020-05-27 21:19:43 -06:00
17df9a44f0
docs: add/update some godoc comments
2020-05-27 14:59:16 -06:00
3ff2e7f9ab
pkg/appleone: add a public appleone pkg
...
Move cpu and opcodes (cpu package) to internal, while adding a public
appleone api package to `pkg/`
2020-05-27 14:52:39 -06:00
366b4ce53e
pkg/{cpu,opcodes}: add some foundational work around the cpu and opcodes
...
Create some data structures to start building the CPU. Outside of some
new structures, the majority of the work in this CL was adding all
apple1 opcodes.
2020-05-27 14:41:38 -06:00
b0bcd754d1
cmd: prepare cmd folder, as I will turn this into a cobra CLI at some point
2020-05-27 14:37:43 -06:00
5e3283bcc7
readme: update references I’m using to figure this thing out
2020-05-27 14:37:23 -06:00
3d1c093d95
initial commit
2020-05-24 15:41:24 -06:00
Bradford Lamson-Scribner