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359 Commits

Author SHA1 Message Date
Sam M W 4847744518 correction to comment 2024-04-24 14:51:08 +01:00
Matthias Endler 11d9540729 fix typo 2024-04-24 15:41:25 +02:00
Sam M W bf06ad8924 better commenting inside of AddressingMode enum 2024-04-24 15:41:25 +02:00
Sam M W 54dd0cd536 rename IndirectWithFix to Indirect 2024-04-24 15:41:25 +02:00
Sam M W 2444ef52d1 fix typo in comment 2024-04-24 15:41:25 +02:00
Sam M W ad622bc930 formatting 2024-04-24 15:41:25 +02:00
Sam M W 97d6b3fd89 split the Indirect addressing mode into BuggyIndirect and IndirectWithFix 2024-04-24 15:41:25 +02:00
Sam M W da30c8c67d change arr_to_addr to address_from_bytes 2024-04-24 15:41:25 +02:00
omarandlorraine 11499b6bc8
Starting on implementing different variants (#88) 
* start on separating 6502 variants from cpu itself

* add a single variant: the NMOS one

* get examples & tests running again

* Add the Revision A variant, one that has no ROR

* disable failing lint in build-time dependencies

* Variant with no decimal mode

* Revert "disable failing lint in build-time dependencies"

This reverts commit c87975e937.

* some doc comments

* specify the variant in unit test now the API has changed

---------

Co-authored-by: Sam M W <you@example.com>
 2023-10-31 16:45:15 +01:00
omarandlorraine b52e47bbb5
Fix the PHP opcode (#92) 
* unit test for php

* get test passing

---------

Co-authored-by: Sam M W <you@example.com>
 2023-10-30 02:22:37 +01:00
omarandlorraine 6ce85db45c
boring crate related maintenance (#95) 
* remove Cargo.lock

* remove num

---------

Co-authored-by: Sam M W <you@example.com>
 2023-10-30 02:20:46 +01:00
omarandlorraine 4d2621d603
use cargo test now instead of skeptic to run tests (#93) 
* use cargo test now instead of skeptic to run tests

* formatting

---------

Co-authored-by: Sam M W <you@example.com>
 2023-10-29 15:06:41 +00:00
Sam M W a07df31c26 Cargo update 2023-10-29 13:47:51 +00:00
omarandlorraine 0d65eb0d8d
Merge pull request #87 from omarandlorraine/update 
cargo update
 2023-08-18 09:07:20 +01:00
Sam M W 9752a1b8f7 cargo update 2023-08-18 09:02:16 +01:00
omarandlorraine aa1a47a76f
Fix addition and subtraction (#72) 
* extract decimal logic into separate function

* squash me

* I think we should be doing unsigned arithmetic here

* squash me

* remove unused function

* update the sign checks

* cargo fmt

* get tests to compile again

* get tests passing again

* squash me

* remove pointless conversion from u8 to u8

* cargo fmt

* accumulator is now u8

* add adc test from solid65

* pass the new test

---------

Co-authored-by: Sam M W <you@example.com>
 2023-06-29 12:13:49 +02:00
dependabot[bot] 65817524a2
Bump bitflags from 2.3.2 to 2.3.3 (#82) 
Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.3.2 to 2.3.3.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.3.2...2.3.3)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2023-06-29 10:52:01 +02:00
Matthias Endler e88c971625
Add assembly example code (#80) 
* Add assembly example code

This should make it easier for beginners to understand
how to test this emulator.

* cleanup

* fix typo
 2023-06-20 10:32:28 +02:00
dependabot[bot] 62d4b73cd5
Bump log from 0.4.17 to 0.4.19 (#78) 
Bumps [log](https://github.com/rust-lang/log) from 0.4.17 to 0.4.19.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/log/compare/0.4.17...0.4.19)

---
updated-dependencies:
- dependency-name: log
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2023-06-19 12:45:50 +02:00
dependabot[bot] 4266599bb2
Bump bitflags from 2.2.1 to 2.3.2 (#79) 
Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.2.1 to 2.3.2.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.2.1...2.3.2)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2023-06-19 11:56:09 +02:00
omarandlorraine 42eb1f8689
Update README.md (#74) 2023-04-26 18:41:44 +02:00
dependabot[bot] 36a9dd19f6
Bump bitflags from 2.1.0 to 2.2.1 (#73) 
Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.1.0 to 2.2.1.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.1.0...2.2.1)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2023-04-25 10:45:54 +02:00
Matthias Endler 2effe45a08
Add CI pipeline (#71) 2023-04-20 17:42:18 +02:00
Matthias 56001dc63b Add missing updated lockfile 2023-04-20 14:22:03 +02:00
Matthias 1a3d07861b Bump devel version to 0.5.0 2023-04-20 13:22:13 +02:00
dependabot[bot] c08e8ac595
Bump bitflags from 2.1.0 to 2.2.0 (#69) 
Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.1.0...2.2.0)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2023-04-20 10:49:59 +02:00
omarandlorraine 849f891e24
Merge pull request #67 from mre/rts 
Implementation of RTS
 2023-04-16 07:08:25 +01:00
omarandlorraine 6232b3bdbd
Merge pull request #68 from mre/bit 
bugfix for the bit opcode
 2023-04-15 22:05:54 +01:00
Sam M W bd1ab13dc1 point INY instruction at the correct register 2023-04-15 21:47:17 +01:00
Sam M W f0fc9829db PLA opcode should update the flags 2023-04-15 21:44:05 +01:00
Sam M W 26a2f51bc6 don't overshoot the stack pointer! (pla and plp) 2023-04-15 21:37:47 +01:00
Sam M W 62424070a1 disable interrupts after BRK instruction 2023-04-15 21:34:07 +01:00
Sam M W a8d53f926d implement BRK 2023-04-15 21:17:28 +01:00
Sam M W 1c31a73a2b correct endianness for program counter push 2023-04-15 21:01:08 +01:00
Sam M W 239992ea6c first stab at implementing the JSR instruction 2023-04-15 20:58:31 +01:00
Sam M W 70e85a2eaf bugfix for the bit opcode 2023-04-15 16:42:05 +01:00
Sam M W 8e797b70fa implement BNE 2023-04-15 16:17:51 +01:00
Sam M W 18164c7abf implement RTI as well 2023-04-15 15:36:53 +01:00
Sam M W 1b90243738 implementation of RTS 2023-04-15 15:36:43 +01:00
dependabot[bot] 7df9160e32
Bump bitflags from 2.0.2 to 2.1.0 (#65) 
Bumps [bitflags](https://github.com/bitflags/bitflags) from 2.0.2 to 2.1.0.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.0.2...2.1.0)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
 2023-04-13 10:58:07 +02:00
omarandlorraine 99ae3d55e0
Merge pull request #63 from mre/memory_trait 
Tease memory handling apart from the CPU
 2023-04-05 05:23:25 +01:00
Sam M W f031c080a0 bump version 2023-04-04 14:48:13 +01:00
Sam M W 9f75d1a6b5 the get_byte method needs to take mutable reference to self 
the reson for this is it's possible for external hardware to have some
side effect on a read.
 2023-04-03 22:46:46 +01:00
Sam M W 26926a9feb set_byte method does not need to return old_value 2023-04-03 22:44:02 +01:00
Sam M W d2043dc6fb less verbosity, more expliciteness 2023-04-03 21:07:06 +01:00
Sam M W 7222388c5e get rid of silly xextend function; just use the .into() 2023-04-03 21:00:17 +01:00
Sam M W 3accd8ce40 as clippy suggests, convert from bool to u8/i8 2023-04-03 07:39:30 +01:00
Sam M W 672defd817 remove now dead code 2023-04-03 07:39:30 +01:00
Sam M W 0708a1084c fix the tests back up 2023-04-03 07:39:18 +01:00
Sam M W 12c901e8aa generic argument for CPU represents memory 2023-04-03 07:02:32 +01:00