#include <stdio.h>
#include "opcode/m68k.h"
+/* Sign-extend an (unsigned char). */
+#if __STDC__ == 1
+#define COERCE_SIGNED_CHAR(ch) ((signed char)(ch))
+#else
+#define COERCE_SIGNED_CHAR(ch) ((int)(((ch) ^ 0x80) & 0xFF) - 128)
+#endif
+
extern void print_address();
/* 68k instructions are never longer than this many bytes. */
static void print_base ();
static int fetch_arg ();
-#define NEXTBYTE(p) (p += 2, ((char *)p)[-1])
+#define NEXTBYTE(p) (p += 2, COERCE_SIGNED_CHAR(p[-1]))
#define NEXTWORD(p) \
(p += 2, ((((char *)p)[-2]) << 8) + p[-1])
if (place == 'b')
val = NEXTBYTE (p);
else if (place == 'B')
- val = buffer[1] > 127 ? buffer[1] - 256 : buffer[1];
+ val = COERCE_SIGNED_CHAR(buffer[1]);
else if (place == 'w' || place == 'W')
val = NEXTWORD (p);
else if (place == 'l' || place == 'L')
#define freg(n) fprintf (stream, "%%%s", freg_names[n])
case 'e':
+ case 'v': /* double/even */
+ case 'V': /* quad/multiple of 4 */
freg (insn.rs1);
break;
case 'f':
+ case 'B': /* double/even */
+ case 'R': /* quad/multiple of 4 */
freg (insn.rs2);
break;
+#ifndef NO_V9
+#if 0
+/* Somebody who know needs to define rs3. */
+ case 'j':
+ case 'u': /* double/even */
+ case 'U': /* quad/multiple of 4 */
+ freg (insn.rs3);
+ break;
+#endif
+#endif /* NO_V9 */
+
case 'g':
+ case 'H': /* double/even */
+ case 'J': /* quad/multiple of 4 */
freg (insn.rd);
break;
#undef freg