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feat(ppu): implement vblank, hblank and coincidence interrupts

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This commit is contained in:
Rekai Nyangadzayi Musuka
2023-11-04 03:22:11 -05:00
parent bf08e93508
commit 37aff56c22
4 changed files with 63 additions and 28 deletions
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15
src/core/Scheduler.zig
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@@ -1,7 +1,6 @@
const std = @import("std");
const Bus9 = @import("nds9/Bus.zig");
const Bus7 = @import("nds7/Bus.zig");
const System = @import("emu.zig").System;
const PriorityQueue = std.PriorityQueue(Event, void, Event.lessThan);
const Allocator = std.mem.Allocator;
@@ -52,25 +51,25 @@ pub inline fn check(self: *@This()) ?Event {
return self.queue.remove();
}
pub fn handle(self: *@This(), bus_ptr: ?*anyopaque, event: Event, late: u64) void {
pub fn handle(self: *@This(), system: System, event: Event, late: u64) void {
switch (event.kind) {
.heat_death => unreachable,
.nds7 => |ev| {
const bus: *Bus7 = @ptrCast(@alignCast(bus_ptr));
const bus = system.bus7;
_ = bus;
switch (ev) {}
},
.nds9 => |ev| {
const bus: *Bus9 = @ptrCast(@alignCast(bus_ptr));
const bus = system.bus9;
switch (ev) {
.draw => {
bus.ppu.drawScanline(bus);
bus.ppu.onHdrawEnd(self, late);
bus.ppu.onHdrawEnd(system, self, late);
},
.hblank => bus.ppu.onHblankEnd(self, late),
.vblank => bus.ppu.onVblankEnd(self, late),
.hblank => bus.ppu.onHblankEnd(system, self, late),
.vblank => bus.ppu.onVblankEnd(system, self, late),
.sqrt => bus.io.sqrt.onSqrtCalc(),
.div => bus.io.div.onDivCalc(),
}