3dgfx code, untested

[metatoy] / src / vga.h

diff --git a/src/vga.h b/src/vga.h
new file mode 100644 (file)
index 0000000..046e905
--- /dev/null
+++ b/src/vga.h
@@ -0,0 +1,15 @@
+#ifndef VGA_H_
+#define VGA_H_
+
+void vga_setpal(int startidx, int count, unsigned char *cmap);
+void vga_setpalent(int idx, int r, int g, int b);
+
+#define wait_vsync() \
+       asm volatile ( \
+               "0: in $0x3da, %%al\n\t" \
+               "jnz 0b\n\t" \
+               "0: in $0x3da, %%al\n\t" \
+               "jz 0b\n\t" \
+               ::: "eax")
+
+#endif /* VGA_H_ */