feat: handle DMA IRQs (maybe?)

2022-10-21 05:12:42 -03:00
parent 5d5d3827fb
commit ff002f18c6
4 changed files with 22 additions and 42 deletions
--- a/src/cpu.zig
+++ b/src/cpu.zig
@@ -267,6 +267,15 @@ pub const Arm7tdmi = struct {
        }
    }

+    pub fn handleDMATransfers(self: *Self) void {
+        while (self.bus.isDmaRunning()) {
+            if (self.bus.dma[1].step(self)) continue;
+            if (self.bus.dma[0].step(self)) continue;
+            if (self.bus.dma[2].step(self)) continue;
+            if (self.bus.dma[3].step(self)) continue;
+        }
+    }
+
    pub fn handleInterrupt(self: *Self) void {
        const should_handle = self.bus.io.ie.raw & self.bus.io.irq.raw;