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* [PATCH 468] m68k sparse floating point
@ 2004-07-20 18:38 Geert Uytterhoeven
  0 siblings, 0 replies; only message in thread
From: Geert Uytterhoeven @ 2004-07-20 18:38 UTC (permalink / raw)
  To: Linus Torvalds, Andrew Morton, James Simmons
  Cc: Linux Kernel Development, Linux Fbdev, Geert Uytterhoeven

M68k: Replace floating point by integer constants (found by sparse)
Affected drivers:
  - Amiga frame buffer
  - ATI Mach64 frame buffer

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

--- linux-2.6.8-rc2/drivers/video/amifb.c	2004-04-28 15:49:02.000000000 +0200
+++ linux-m68k-2.6.8-rc2/drivers/video/amifb.c	2004-07-10 21:07:38.000000000 +0200
@@ -2351,7 +2351,7 @@
 	 */
 
 	{
-	u_long tmp = DIVUL(200E9, amiga_eclock);
+	u_long tmp = DIVUL(200000000000ULL, amiga_eclock);
 
 	pixclock[TAG_SHRES] = (tmp + 4) / 8;	/* SHRES:  35 ns / 28 MHz */
 	pixclock[TAG_HIRES] = (tmp + 2) / 4;	/* HIRES:  70 ns / 14 MHz */
--- linux-2.6.8-rc2/drivers/video/aty/mach64_gx.c	2004-04-27 20:30:51.000000000 +0200
+++ linux-m68k-2.6.8-rc2/drivers/video/aty/mach64_gx.c	2004-07-10 21:06:54.000000000 +0200
@@ -653,7 +653,7 @@
 
 		for (m = MIN_M; m <= MAX_M; m++) {
 			for (n = MIN_N; n <= MAX_N; n++) {
-				tempA = (14.31818 * 65536);
+				tempA = 938356;		/* 14.31818 * 65536 */
 				tempA *= (n + 8);	/* 43..256 */
 				tempB = twoToKth * 256;
 				tempB *= (m + 2);	/* 4..32 */

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds


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2004-07-20 18:38 [PATCH 468] m68k sparse floating point Geert Uytterhoeven

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