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v0.1.1 Partial Super Chip Support #11

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j merged 12 commits from schip into main 2023-04-15 04:00:41 +00:00
Conversation 0 Commits 12 Files Changed 19 +34 -27
1 changed files with 34 additions and 27 deletions
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61
src/bin/chirp-minifb/main.rs
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@@ -43,32 +43,32 @@ struct Arguments {
)]
pub mode: Option<Mode>,
// #[options(
// short = "z",
// help = "Disable setting vF to 0 after a bitwise operation."
// )]
// pub vfreset: bool,
// #[options(
// short = "x",
// help = "Disable waiting for vblank after issuing a draw call."
// )]
// pub drawsync: bool,
#[options(
short = "z",
help = "Disable setting vF to 0 after a bitwise operation."
)]
pub vfreset: bool,
#[options(
short = "x",
help = "Disable waiting for vblank after issuing a draw call."
)]
pub drawsync: bool,
// #[options(
// short = "c",
// help = "Use CHIP-48 style DMA instructions, which don't touch I."
// )]
// pub memory: bool,
// #[options(
// short = "v",
// help = "Use CHIP-48 style bit-shifts, which don't touch vY."
// )]
// pub shift: bool,
// #[options(
// short = "b",
// help = "Use SUPER-CHIP style indexed jump, which is indexed relative to v[adr]."
// )]
// pub jumping: bool,
#[options(
short = "c",
help = "Use CHIP-48 style DMA instructions, which don't touch I."
)]
pub memory: bool,
#[options(
short = "v",
help = "Use CHIP-48 style bit-shifts, which don't touch vY."
)]
pub shift: bool,
#[options(
short = "b",
help = "Use SUPER-CHIP style indexed jump, which is indexed relative to v[adr]."
)]
pub jumping: bool,
#[options(
long = "break",
help = "Set breakpoints for the emulator to stop at.",
@@ -111,7 +111,7 @@ impl State {
// Load the ROM file into RAM
Program [0x0200..0x1000] = &read(&options.file)?,
// Create a screen
Screen [0x1000..0x1400],
Screen [0x1000..0x1100],
// Create a stack
Stack [0x0EA0..0x0F00],
},
@@ -134,6 +134,12 @@ impl State {
ui: UIBuilder::new(128, 64, &options.file).build()?,
ft: Instant::now(),
};
// Flip the state of the quirks
state.ch8.cpu.flags.quirks.bin_ops ^= options.vfreset;
state.ch8.cpu.flags.quirks.dma_inc ^= options.memory;
state.ch8.cpu.flags.quirks.draw_wait ^= options.drawsync;
state.ch8.cpu.flags.quirks.shift ^= options.shift;
state.ch8.cpu.flags.quirks.stupid_jumps ^= options.jumping;
state.ch8.bus.write(0x1feu16, options.data);
Ok(state)
}
@@ -154,9 +160,10 @@ impl State {
let time = time.elapsed();
let nspt = time.as_secs_f64() / ticks as f64;
eprintln!(
"{ticks},\t{time:.05?},\t{:.4}nspt,\t{}ipf",
"{ticks},\t{time:.05?},\t{:.4} nspt,\t{} ipf,\t{} mips",
nspt * 1_000_000_000.0,
((1.0 / 60.0f64) / nspt).trunc(),
(1.0 / nspt).trunc() / 1_000_000.0,
);
}
}