everything is finally at peace

1 files changed, 55 insertions, 0 deletions

diff --git a/ROMs/paint.c b/ROMs/paint.c
new file mode 100644
index 0000000..443719a
--- /dev/null
+++ b/ROMs/paint.c
@@ -0,0 +1,55 @@
+int setPixel(int x, int y, int c)
+{
+    char* screenStart = 0x402F;
+    int i = (y * 128) + x;
+    screenStart[i] = c;
+}
+
+int setPixelIndex(int i, int c)
+{
+    char* screenStart = 0x402F;
+    screenStart[i] = c;
+}
+
+int clear(int c)
+{
+    char* screenStart = 0x402F;
+    char screenSize = 64 * 128;
+    for (int i = 0; i < screenSize; i++)
+    {
+        screenStart[i] = c;
+    }
+}
+
+int getKeyState(int scanCode)
+{
+    char* hid = 0x6033;
+    int index = scanCode / 8;
+    int bit   = scanCode % 8;
+
+    int val = hid[index - 1];
+    return (val & (1 << bit)) != 0;
+}
+
+int main()
+{
+	int color = 0;
+    while (1)
+    {
+        int* hid = 0x602F;
+        int mouseIndex = hid[0];
+        int mouseState = hid[1];
+
+        if (mouseState & 1)
+            setPixelIndex(mouseIndex, (color % 3) + 1);
+
+        if (getKeyState(67))
+            clear(8);
+
+ 		if (getKeyState(65))
+		{
+            color++;
+			while (getKeyState(65)) { }
+		}
+    }
+}
\ No newline at end of file