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feat: create emulator thread

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This commit is contained in:
Rekai Nyangadzayi Musuka
2022-01-28 16:33:38 -04:00
parent b1cc985230
commit 24f0922f86
3 changed files with 38 additions and 11 deletions
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6
src/cpu.zig
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@@ -29,7 +29,7 @@ pub const ThumbInstrFn = fn (*Arm7tdmi, *Bus, u16) void;
const arm_lut: [0x1000]ArmInstrFn = armPopulate();
const thumb_lut: [0x400]ThumbInstrFn = thumbPopulate();
const logging_enabled: bool = false;
const enable_logging = @import("main.zig").enable_logging;
pub const Arm7tdmi = struct {
const Self = @This();
@@ -183,12 +183,12 @@ pub const Arm7tdmi = struct {
pub fn step(self: *Self) u64 {
if (self.cpsr.t.read()) {
const opcode = self.thumbFetch();
if (logging_enabled) if (self.log_file) |file| self.log(file, @as(u32, opcode));
if (enable_logging) if (self.log_file) |file| self.log(file, @as(u32, opcode));
thumb_lut[thumbIdx(opcode)](self, self.bus, opcode);
} else {
const opcode = self.fetch();
if (logging_enabled) if (self.log_file) |file| self.log(file, @as(u32, opcode));
if (enable_logging) if (self.log_file) |file| self.log(file, opcode);
if (checkCond(self.cpsr, @truncate(u4, opcode >> 28))) {
arm_lut[armIdx(opcode)](self, self.bus, opcode);