X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Fdos%2Fvbe.c;fp=src%2Fdos%2Fvbe.c;h=d5d75dff5f62804f8790d4b5d52b97654fe56201;hp=0000000000000000000000000000000000000000;hb=2c4602e53eaab44272ea5cd62667c939e6d2f61b;hpb=e306e700b04607927f659948590c2c2ed234157e

diff --git a/src/dos/vbe.c b/src/dos/vbe.c
new file mode 100644
index 0000000..d5d75df
--- /dev/null
+++ b/src/dos/vbe.c
@@ -0,0 +1,28 @@
+#include "vbe.h"
+#include "cdpmi.h"
+
+int vbe_getinfo(struct vbe_info *info)
+{
+	void *lowbuf;
+	uint16_t seg, sel;
+	struct dpmi_regs regs = {0};
+
+	if(!(seg = dpmi_alloc(512 / 16, &sel))) {
+		return -1;
+	}
+
+	regs.eax = 0x4f00;
+	regs.es = seg;
+	regs.edi = 0;
+	dpmi_int(0x10, &regs);
+
+	if(regs.eax & 0xff00) {
+		dpmi_free(sel);
+		return -1;
+	}
+
+	lowbuf = (void*)((uint32_t)seg << 4);
+	memcpy(info, lowbuf, sizeof info);
+	dpmi_free(sel);
+	return 0;
+}