shithub: sms

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hflip

--- a/vdp.c

+++ b/vdp.c

@@ -45,14 +45,19 @@

 	int ty = vdpy >> 3;

 	int tyoff = vdpy & 7;

-	//for(int x = 0; x < 256; x++){

 	int tx = vdpx >> 3;

 	int txoff = vdpx & 7;

 	uint16_t taddr = screenmap + (((ty << 5) + tx) << 1);

 	int tidx = vram[taddr];

+	int info = vram[taddr + 1];

+

+	int hflip = (info & 1 << 1) != 0;

+	int vflip = (info & 1 << 2) != 0;

+

 	int data = (tidx << 5) + (tyoff << 2);

 	int xx = 7 - txoff;

+	if (hflip) xx = txoff;

 	int c = ((vram[data] >> xx) & 1) +

 			(((vram[data + 1] >> xx) & 1) << 1) +

@@ -60,7 +65,6 @@

 			(((vram[data + 3] >> xx) & 1) << 3);

 	if(c > 0) pixeldraw(vdpx, vdpy, cramc[c + 16]);

-	//}

 }

 int sprlst[64] = {-1};

-- 

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