Some useful fatalerrors

src/emu/cpu/sh4/sh4.c

@@ -2517,6 +2517,9 @@ const void FTRC(sh4_state *sh4, const UINT16 opcode)
 	UINT32 n = Rn;
 
 	if (sh4->fpu_pr) { /* PR = 1 */
+		if(n & 1)
+			fatalerror("SH-4: FTRC opcode used with n %d",n);
+
 		n = n & 14;
 		*((INT32 *)&sh4->fpul) = (INT32)FP_RFD(n);
 	} else {              /* PR = 0 */
@@ -2532,6 +2535,9 @@ const void FLOAT(sh4_state *sh4, const UINT16 opcode)
 	UINT32 n = Rn;
 
 	if (sh4->fpu_pr) { /* PR = 1 */
+		if(n & 1)
+			fatalerror("SH-4: FLOAT opcode used with n %d",n);
+
 		n = n & 14;
 		FP_RFD(n) = (double)*((INT32 *)&sh4->fpul);
 	} else {              /* PR = 0 */

src/mame/drivers/naomi.c

@@ -22,7 +22,7 @@ Sega Naomi is Dreamcast based Arcade hardware.
 Compatibility list (as per 26-jun-2013)
 - sfz3ugd: currently dies at disclaimer screen (regression);
 - sprtjam: garbage on initial attract mode screen (regression).
-- puyofev: hangs after pressing start.
+- puyofev: hangs after pressing start (bp 0C03F490, similar if not same snippet as Tetris 4d on DC).
 - vtennisg: crashes after stage screen.
 
 TODO (general):

src/mame/video/powervr2.c

@@ -1476,6 +1476,8 @@ WRITE32_MEMBER( powervr2_device::ta_yuv_tex_ctrl_w )
 	ta_yuv_x_size = ((ta_yuv_tex_ctrl & 0x3f)+1)*16;
 	ta_yuv_y_size = (((ta_yuv_tex_ctrl>>8) & 0x3f)+1)*16;
 	logerror("%s: ta_yuv_tex_ctrl = %08x\n", tag(), ta_yuv_tex_ctrl);
+	if(ta_yuv_tex_ctrl & 0x01010000)
+		fatalerror("YUV with setting %08x",ta_yuv_tex_ctrl);
 }
 
 #include "debugger.h"

src/mess/drivers/dccons.c

@@ -22,7 +22,9 @@
     - Inputs doesn't work most of the time;
     - Candy Stripe: fills the log with "ATAPI_FEATURES_FLAG_OVL not supported", black screen
     - Carrier: Jaleco logo uses YUV, but y size is halved?
+    - Close To: Hangs at FMV
     - F355 Challenge: black screen after Sega logo;
+	- Gundam - Side Story 0079: currently hangs at Bandai logo (regression)
 	- Idol Janshi wo Tsukucchaou: pixel aspect is way wrong (stretched and offsetted horizontally)
 	- Power Stone: hangs at Capcom logo;
 	- Sega GT: no cursor on main menu;