feat(ppu): improve timings + implement BG mode 3 bitmap

2022-01-09 10:22:50 -04:00
parent 581285a434
commit ead6d1ce49
3 changed files with 49 additions and 34 deletions
--- a/src/emu.zig
+++ b/src/emu.zig
@@ -2,7 +2,7 @@ const Bus = @import("Bus.zig");
 const Scheduler = @import("scheduler.zig").Scheduler;
 const Arm7tdmi = @import("cpu.zig").Arm7tdmi;

-const cycles_per_frame: u64 = 100; // TODO: How many cycles actually?
+const cycles_per_frame: u64 = 160 * (308 * 4);

 pub fn runFrame(sched: *Scheduler, cpu: *Arm7tdmi, bus: *Bus) void {
    var cycles: u64 = 0;