X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=cpu%2Fsh2%2Fmame%2Fsh2pico.c;h=a65638b46c96aecfb588691c9ed2c8c10d9a90bc;hb=04092e329bbd050073d42defcd609550d8545e74;hp=bdab22b2bf3d32c5e26dba1e4eb1632c2c8627ed;hpb=bcf65fd674528896fe1bc233c8bab617f6b2c86e;p=picodrive.git

diff --git a/cpu/sh2/mame/sh2pico.c b/cpu/sh2/mame/sh2pico.c
index bdab22b..a65638b 100644
--- a/cpu/sh2/mame/sh2pico.c
+++ b/cpu/sh2/mame/sh2pico.c
@@ -31,9 +31,35 @@ typedef unsigned char  UINT8;
 
 #define sh2_icount sh2->icount
 
+#ifdef SH2_STATS
+static SH2 sh2_stats;
+static unsigned int op_refs[0x10000];
+# define LRN  1
+# define LRM  2
+# define LRNM (LRN|LRM)
+# define rlog(rnm) {   \
+  int op = opcode;     \
+  if ((rnm) & LRN) {   \
+    op &= ~0x0f00;     \
+    sh2_stats.r[Rn]++; \
+  }                    \
+  if ((rnm) & LRM) {   \
+    op &= ~0x00f0;     \
+    sh2_stats.r[Rm]++; \
+  }                    \
+  op_refs[op]++;       \
+}
+# define rlog1(x) sh2_stats.r[x]++
+# define rlog2(x1,x2) sh2_stats.r[x1]++; sh2_stats.r[x2]++
+#else
+# define rlog(x)
+# define rlog1(...)
+# define rlog2(...)
+#endif
+
 #include "sh2.c"
 
-#ifndef DRC_TMP
+#ifndef DRC_SH2
 
 void sh2_execute(SH2 *sh2_, int cycles)
 {
@@ -48,15 +74,12 @@ void sh2_execute(SH2 *sh2_, int cycles)
 	{
 		UINT32 opcode;
 
+		/* FIXME: Darxide doesn't like this */
 		if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
 		{
-			if (sh2->pending_irl > sh2->pending_int_irq)
-				sh2_do_irq(sh2, sh2->pending_irl, 64 + sh2->pending_irl/2);
-			else {
-				sh2_do_irq(sh2, sh2->pending_int_irq, sh2->pending_int_vector);
-				sh2->pending_int_irq = 0; // auto-clear
-				sh2->pending_level = sh2->pending_irl;
-			}
+			int level = sh2->pending_level;
+			int vector = sh2->irq_callback(sh2, level);
+			sh2_do_irq(sh2, level, vector);
 			sh2->test_irq = 0;
 		}
 
@@ -102,10 +125,16 @@ void sh2_execute(SH2 *sh2_, int cycles)
 	sh2->cycles_done += cycles - sh2->icount;
 }
 
-#else // DRC_TMP
+#else // DRC_SH2
 
-// tmp
-void __attribute__((regparm(2))) sh2_do_op(SH2 *sh2_, int opcode)
+#ifdef __i386__
+#define REGPARM(x) __attribute__((regparm(x)))
+#else
+#define REGPARM(x)
+#endif
+
+// drc debug
+void REGPARM(2) sh2_do_op(SH2 *sh2_, int opcode)
 {
 	sh2 = sh2_;
 	sh2->pc += 2;
@@ -133,3 +162,56 @@ void __attribute__((regparm(2))) sh2_do_op(SH2 *sh2_, int opcode)
 
 #endif
 
+#ifdef SH2_STATS
+#include <stdio.h>
+#include <string.h>
+#include "sh2dasm.h"
+
+void sh2_dump_stats(void)
+{
+	static const char *rnames[] = {
+		"R0", "R1", "R2",  "R3",  "R4",  "R5",  "R6",  "R7",
+		"R8", "R9", "R10", "R11", "R12", "R13", "R14", "SP",
+		"PC", "", "PR", "SR", "GBR", "VBR", "MACH", "MACL"
+	};
+	long long total;
+	char buff[64];
+	int u, i;
+
+	// dump reg usage
+	total = 0;
+	for (i = 0; i < 24; i++)
+		total += sh2_stats.r[i];
+
+	for (i = 0; i < 24; i++) {
+		if (i == 16 || i == 17 || i == 19)
+			continue;
+		printf("r %6.3f%% %-4s %9d\n", (double)sh2_stats.r[i] * 100.0 / total,
+			rnames[i], sh2_stats.r[i]);
+	}
+
+	memset(&sh2_stats, 0, sizeof(sh2_stats));
+
+	// dump ops
+	printf("\n");
+	total = 0;
+	for (i = 0; i < 0x10000; i++)
+		total += op_refs[i];
+
+	for (u = 0; u < 16; u++) {
+		int max = 0, op = 0;
+		for (i = 0; i < 0x10000; i++) {
+			if (op_refs[i] > max) {
+				max = op_refs[i];
+				op = i;
+			}
+		}
+		DasmSH2(buff, 0, op);
+		printf("i %6.3f%% %9d %s\n", (double)op_refs[op] * 100.0 / total,
+			op_refs[op], buff);
+		op_refs[op] = 0;
+	}
+	memset(op_refs, 0, sizeof(op_refs));
+}
+#endif
+