commit a207a93

Removed math from tight loop

 1@@ -613,12 +613,12 @@ screen_draw_sprite(void)
 2 		for(i = 0; i <= rML; i++, x += dyx, y += dxy, rA += addr_incr) {
 3 			const Uint16 xmar2 = x + 16, ymar2 = y + 16, xmar = x + 8;
 4 			if(xmar2 == xmar + 8 && xmar2 < screen_wmar2 && ymar2 < screen_hmar2) {
 5-				const Uint8 *sprite = &ram[rA];
 6 				const Uint16 ymar = y + 8;
 7 				const int height = ymar2 - ymar;
 8 				Uint8 *dst = &screen_layers[xmar + ymar * screen_wmar2];
 9-				for(row = 0, qy = qfy; row < height; row++, dst += screen_wmar2, qy += fy) {
10-					const int ch1 = sprite[qy], ch2 = sprite[qy + 8] << 1;
11+				Uint8 *sch1 = &ram[rA + qfy], *sch2 = sch1 + 8;
12+				for(row = 0; row < height; row++, dst += screen_wmar2, sch1 += fy, sch2 += fy) {
13+					const int ch1 = *sch1, ch2 = *sch2 << 1;
14 					int qx = qfx;
15 					if(opaque)
16 						PUT_PIXELS(n, 1, 1, ch1, ch2, qx)
17@@ -632,12 +632,12 @@ screen_draw_sprite(void)
18 		for(i = 0; i <= rML; i++, x += dyx, y += dxy, rA += addr_incr) {
19 			const Uint16 xmar2 = x + 16, ymar2 = y + 16, xmar = x + 8;
20 			if(xmar2 == xmar + 8 && xmar2 < screen_wmar2 && ymar2 < screen_hmar2) {
21-				const Uint8 *sprite = &ram[rA];
22 				const Uint16 ymar = y + 8;
23 				const int height = ymar2 - ymar;
24 				Uint8 *dst = &screen_layers[xmar + ymar * screen_wmar2];
25-				for(row = 0, qy = qfy; row < height; row++, dst += screen_wmar2, qy += fy) {
26-					const int ch1 = sprite[qy];
27+				Uint8 *sch1 = &ram[rA + qfy];
28+				for(row = 0; row < height; row++, dst += screen_wmar2, sch1 += fy) {
29+					const int ch1 = *sch1;
30 					int qx = qfx;
31 					if(opaque)
32 						PUT_PIXELS(n, 1, 0, ch1, 0, qx)