Emulation/trueLMAO
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debug mod

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kirjavascript 2022-10-04 00:17:22 +01:00
parent 965bdcf73c
commit 7d4fffd5a5
3 changed files with 26 additions and 29 deletions
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23
emu/src/debug.rs Normal file
View file

@ -0,0 +1,23 @@
use crate::Megadrive;
pub fn disasm_demo(emu: &Megadrive) -> Vec<(u32, String)> {
use r68k_tools::PC;
let mut buffer = Vec::new();
let mut opcodes = Vec::new();
// longest opcode is 16 bytes
for i in 0..(16 * 10) {
buffer.push(emu.core.mem.rom.read_byte(emu.core.pc + i));
}
let mvec = r68k_tools::memory::MemoryVec::new8(PC(0), buffer);
let mut cursor = PC(0);
for _ in 0..10 {
let disasm = r68k_tools::disassembler::disassemble(cursor, &mvec);
if let Ok((pc, opcode)) = disasm {
opcodes.push((cursor.0 + emu.core.pc, opcode.to_string().to_lowercase()));
cursor = pc;
}
}
opcodes
}

28
emu/src/lib.rs
View file

@ -1,6 +1,7 @@
use r68k_emu::cpu::{STACK_POINTER_REG, ConfiguredCore};
use r68k_emu::interrupts::AutoInterruptController;
pub mod debug;
pub mod gfx;
pub mod io;
pub mod mem;
@ -41,33 +42,6 @@ impl Megadrive {
}
}
pub fn step_n(&mut self, amount: usize) {
for _ in 0..amount {
self.core.execute1();
}
}
pub fn disasm(&self) -> Vec<(u32, String)> {
use r68k_tools::PC;
let mut buffer = Vec::new();
let mut opcodes = Vec::new();
// longest opcode is 16 bytes
for i in 0..(16 * 10) {
buffer.push(self.core.mem.rom.read_byte(self.core.pc + i));
}
let mvec = r68k_tools::memory::MemoryVec::new8(PC(0), buffer);
let mut cursor = PC(0);
for _ in 0..10 {
let disasm = r68k_tools::disassembler::disassemble(cursor, &mvec);
if let Ok((pc, opcode)) = disasm {
opcodes.push((cursor.0 + self.core.pc, opcode.to_string().to_lowercase()));
cursor = pc;
}
}
opcodes
}
pub fn frame(&mut self, draw: bool) {
/* cycle counts initially taken from drx/kiwi */
// TODO: use a counter instead

4
frontend/src/app.rs
View file

@ -159,7 +159,7 @@ impl eframe::App for App {
ui.radio_value(&mut self.vsync, true, "vsync");
ui.radio_value(&mut self.vsync, false, "not vsync");
self.test_vec.push_back(self.game_state.frames_to_render().min(4));
self.test_vec.push_back(self.game_state.frames_to_render.min(4));
if self.test_vec.len() > 60 {
self.test_vec.pop_front();
@ -216,7 +216,7 @@ impl eframe::App for App {
debug.push_str(&format!("\n"));
debug.push_str(&format!("\n"));
for (pc, opcode) in self.emu.disasm() {
for (pc, opcode) in emu::debug::disasm_demo(&self.emu) {
debug.push_str(&format!("0x{:X}\t{}\n", pc, opcode));
}
ui.label(&debug);