Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Implement the PLANE mnemonic #15

Merged
merged 1 commit into from
Jul 9, 2024
Merged

Implement the PLANE mnemonic #15

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -190,6 +190,7 @@ specifications, as well as pseudo operations.
| Mnemonic | Opcode | Operands | Description |
|----------|--------|:--------:|------------------------------------------------------|
| `AUDIO` | `F002` | 0 | Load 16-byte audio pattern buffer from `index` |
| `PLANE` | `Fn03` | 1 | Sets the drawing bitplane to `n` |
| `PITCH` | `Fs3A` | 1 | Sets the internal pitch to the value in register `s` |


Expand Down
3 changes: 2 additions & 1 deletion chip8asm/statement.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
"""
Copyright (C) 2014-2019 Craig Thomas
Copyright (C) 2024 Craig Thomas
This project uses an MIT style license - see LICENSE for details.

This file contains Exceptions for the Chip 8 Assembler.
Expand Down Expand Up @@ -71,6 +71,7 @@
Operation(op="Fs85", operands=1, source=1, target=0, numeric=0, mnemonic="LRPL"),
# XO Chip Instructions
Operation(op="F002", operands=0, source=0, target=0, numeric=0, mnemonic="AUDIO"),
Operation(op="Fn03", operands=1, source=0, target=0, numeric=1, mnemonic="PLANE"),
Operation(op="Fs3A", operands=1, source=1, target=0, numeric=0, mnemonic="PITCH"),
]

Expand Down
9 changes: 9 additions & 0 deletions test/test_integration.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -52,4 +52,13 @@ def test_pitch_mnemonic_translate_correct(self):
machine_code = program.generate_machine_code()
self.assertEqual([0xF1, 0x3A], machine_code)

def test_plane_mnemonic_translate_correct(self):
program = Program()
statement = Statement()
statement.parse_line(" PLANE $2 ; plane statement")
program.statements.append(statement)
program = self.translate_statements(program)
machine_code = program.generate_machine_code()
self.assertEqual([0xF2, 0x03], machine_code)

# E N D O F F I L E #######################################################
Loading