tmerritt/trevors_chip8_toy
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Gemma now has a test that runs the IBM Logo and verifies the video is as expected when done.

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This commit is contained in:
Trevor Merritt 2024-10-11 09:50:01 -04:00
parent 2ef8a78c32
commit 6f7b894e92
4 changed files with 44 additions and 39 deletions
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6
gemma/src/chip8/instructions.rs
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@ -1190,7 +1190,7 @@ mod test {
x.registers.poke(0x1, 0x10);
x.registers.poke(0x2, 0x08);
Chip8CpuInstructions::SubVxVy(0x1, 0x02).execute(&mut x);
assert_eq!(x.registers.peek(0xf), 0);
assert_eq!(x.registers.peek(0xf), 1);
assert_eq!(x.registers.peek(0x1), 0x8);
assert_eq!(x.registers.peek_pc(), 0x202);
}
@ -1249,7 +1249,7 @@ mod test {
// expect the result to be 0x0b
assert_eq!(x.registers.peek(0x1), 0x0b);
// expect the vf register to be set to 1 as there was overflow
assert_eq!(x.registers.peek(0xf), 0x0);
assert_eq!(x.registers.peek(0xf), 0x1);
let mut x = Chip8Computer::new();
x.registers.poke(0x01, 0xab);
@ -1258,7 +1258,7 @@ mod test {
// expect the result to be 11110101, -0xB, -11, 245, 0xF5
assert_eq!(x.registers.peek(0x1), 0xf5);
assert_eq!(x.registers.peek(0xf), 0x1);
assert_eq!(x.registers.peek(0xf), 0x0);
}
#[test]

12
gemma/tests/computer_tests.rs
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@ -6,11 +6,17 @@ fn smoke() { assert!(true) }
#[test]
fn test_rom_1_works() {
let mut x = Chip8Computer::new();
// Load the IBM rom and run it...
// Load the IBM rom and run it.
// it takes 39 cycles to get to the end so lets run it 40.
let test_rom_to_run = std::fs::read("../resources/roms/2-ibm-logo.ch8").unwrap();
x.load_bytes_to_memory(0x200, test_rom_to_run.into());
for i in 0..40 {
x.step_system();
}
// ...then verify that the current video memory of the chip-8
// simulator matches what we expect it to be
assert_eq!(x.dump_video_to_string(), );
assert_eq!(x.dump_video_to_string(), std::fs::read_to_string("../resources/test/gemma_integration_ibm_rom_output.asc").unwrap());
}

1
gemmaegui/src/bin/gemmaegui.rs
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@ -35,7 +35,6 @@ fn controls_view(mut system: &mut Chip8Computer, state: &mut EmmaEGuiState, ui:
ui.checkbox(&mut state.display_memory, "Display Memory");
ui.checkbox(&mut state.display_video, "Display Video");
ui.checkbox(&mut state.display_registers, "Display Registers");
}
fn registers_view(system: &Chip8Computer, ui:& mut Ui) {

64
resources/test/gemma_integration_ibm_rom_output.asc
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@ -1,32 +1,32 @@
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