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chore: tick scheduler on memory access

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This commit is contained in:
Rekai Nyangadzayi Musuka
2022-04-09 19:15:12 -03:00
parent 5da84aff36
commit c100d64fcb
6 changed files with 34 additions and 34 deletions
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16
src/scheduler.zig
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@@ -31,6 +31,8 @@ pub const Scheduler = struct {
pub fn handleEvent(self: *Self, cpu: *Arm7tdmi, bus: *Bus) void {
if (self.queue.removeOrNull()) |event| {
const late = self.tick - event.tick;
switch (event.kind) {
.HeatDeath => {
log.err("A u64 overflowered. This *actually* should never happen.", .{});
@@ -39,18 +41,18 @@ pub const Scheduler = struct {
.Draw => {
// The end of a VDraw
bus.ppu.drawScanline();
bus.ppu.handleHDrawEnd(cpu);
bus.ppu.handleHDrawEnd(cpu, late);
},
.TimerOverflow => |id| {
switch (id) {
0 => bus.tim._0.handleOverflow(cpu),
1 => bus.tim._1.handleOverflow(cpu),
2 => bus.tim._2.handleOverflow(cpu),
3 => bus.tim._3.handleOverflow(cpu),
0 => bus.tim._0.handleOverflow(cpu, late),
1 => bus.tim._1.handleOverflow(cpu, late),
2 => bus.tim._2.handleOverflow(cpu, late),
3 => bus.tim._3.handleOverflow(cpu, late),
}
},
.HBlank => bus.ppu.handleHBlankEnd(cpu), // The end of a HBlank
.VBlank => bus.ppu.handleHDrawEnd(cpu), // The end of a VBlank
.HBlank => bus.ppu.handleHBlankEnd(cpu, late), // The end of a HBlank
.VBlank => bus.ppu.handleHDrawEnd(cpu, late), // The end of a VBlank
}
}
}