/* HP PA-RISC SOM object file format: definitions internal to BFD.
- Copyright (C) 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1990, 91, 92, 93, 94 , 95, 1996 Free Software Foundation, Inc.
Contributed by the Center for Software Science at the
University of Utah (pa-gdb-bugs@cs.utah.edu).
__attribute__ ((__unused__));
#endif /* gcc 2.7 or higher */
+
/* The PA instruction set variants. */
enum pa_arch {pa10 = 10, pa11 = 11, pa20 = 20};
R_HPPA_RPSEL = 0xe,
R_HPPA_TSEL = 0xf,
R_HPPA_LTSEL = 0x10,
- R_HPPA_RTSEL = 0x11,
- R_HPPA_ESEL = 0xff
+ R_HPPA_RTSEL = 0x11
};
/* /usr/include/reloc.h defines these to constants. We want to use
#undef e_tsel
#undef e_ltsel
#undef e_rtsel
-#undef e_esel
#undef e_one
#undef e_two
#undef e_pcrel
e_rpsel = R_HPPA_RPSEL,
e_tsel = R_HPPA_TSEL,
e_ltsel = R_HPPA_LTSEL,
- e_rtsel = R_HPPA_RTSEL,
- e_esel = R_HPPA_ESEL
+ e_rtsel = R_HPPA_RTSEL
};
enum hppa_reloc_expr_type
#define HPPA_R_ARG_RELOC(a) (((a) >> 22) & 0x3FF)
#define HPPA_R_CONSTANT(a) ((((int)(a)) << 10) >> 10)
#define HPPA_R_ADDEND(r,c) (((r) << 22) + ((c) & 0x3FFFFF))
+#define HPPA_WIDE (0) /* PSW W-bit, need to check! FIXME */
+
+/* These macros get bit fields using HP's numbering (MSB = 0),
+ * but note that "MASK" assumes that the LSB bits are what's
+ * wanted.
+ */
+#ifndef GET_FIELD
+#define GET_FIELD(X, FROM, TO) \
+ ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
+#endif
+#define GET_BIT(X, WHICH) \
+ GET_FIELD (X, WHICH, WHICH)
+
+#define MASK(SIZE) \
+ (~((-1) << SIZE))
+
+#define CATENATE(X, XSIZE, Y, YSIZE) \
+ (((X & MASK (XSIZE)) << YSIZE) | (Y & MASK (YSIZE)))
+#define ELEVEN(X) \
+ CATENATE (GET_BIT (X, 10), 1, GET_FIELD (X, 0, 9), 10)
+
/* Some functions to manipulate PA instructions. */
+
+/* NOTE: these use the HP convention that f{1} is the _left_ most
+ * bit (MSB) of f; they sometimes have to impose an assumption
+ * about the size of a field; and as far as I can tell, most
+ * aren't used.
+ */
+
+static INLINE unsigned long
+sign_extend (x, len)
+ unsigned int x, len;
+{
+ return (int)(x >> (len - 1) ? (-1 << len) | x : x);
+}
+
static INLINE unsigned int
assemble_3 (x)
unsigned int x;
{
- return (((x & 1) << 2) | ((x & 6) >> 1)) & 7;
+ return CATENATE (GET_BIT (x, 2), 1, GET_FIELD (x, 0, 1), 2);
}
static INLINE void
}
static INLINE unsigned int
+assemble_6 (x, y)
+ unsigned int x, y;
+{
+ return (((x & 0x1) << 5) + (32 - (y & 0x1f)));
+}
+
+static INLINE unsigned int
assemble_12 (x, y)
unsigned int x, y;
{
- return (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff;
+ return CATENATE (CATENATE (y, 1, GET_BIT (x, 10), 1), 2,
+ GET_FIELD (x, 0, 9), 9);
}
static INLINE void
}
static INLINE unsigned long
+assemble_16 (x, y)
+ unsigned int x, y;
+{
+ /* Depends on PSW W-bit !*/
+ unsigned int temp;
+
+ if (HPPA_WIDE)
+ temp = CATENATE (CATENATE (GET_BIT (y, 13), 1,
+ (GET_BIT (y, 13) ^ GET_BIT (x, 0)), 1), 2,
+ CATENATE ((GET_BIT (y, 13) ^ GET_BIT (x, 1)), 1,
+ GET_FIELD (y, 0, 12), 13), 14);
+ else
+ temp = CATENATE (CATENATE (GET_BIT (y, 13), 1, GET_BIT (y, 13), 1), 2,
+ CATENATE (GET_BIT (y, 13), 1, GET_FIELD (y, 0, 12), 13), 14);
+
+ return sign_extend (temp, 16);
+}
+
+
+static INLINE unsigned long
+assemble_16a (x, y, z)
+ unsigned int x, y, z;
+{
+ /* Depends on PSW W-bit !*/
+ unsigned int temp;
+
+ if (HPPA_WIDE)
+ temp = CATENATE (CATENATE (z, 1, (z ^ GET_BIT (x, 0)), 1), 2,
+ CATENATE ((z ^ GET_BIT (x, 1)), 1, y, 11), 12);
+ else
+ temp = CATENATE (CATENATE (z, 1, z, 1), 2, CATENATE (z, 1, y, 11), 12);
+
+ return sign_extend ((temp << 2), 16);
+}
+
+static INLINE unsigned long
assemble_17 (x, y, z)
unsigned int x, y, z;
{
unsigned long temp;
- temp = ((z & 1) << 16) |
- ((x & 0x1f) << 11) |
- ((y & 1) << 10) |
- ((y & 0x7fe) >> 1);
- return temp & 0x1ffff;
+ temp = CATENATE (CATENATE (z, 1, x, 5), 6,
+ CATENATE (GET_BIT (y, 10), 1, GET_FIELD (y, 0, 9), 10), 11);
+
+ return temp;
}
static INLINE void
return temp & 0x1fffff;
}
+static INLINE unsigned long
+assemble_22 (a,b,c,d)
+ unsigned int a,b,c,d;
+{
+ unsigned long temp;
+
+ temp = CATENATE (CATENATE (d, 1, a, 5), 6,
+ CATENATE (b, 5, ELEVEN (c), 11), 16);
+
+ return sign_extend (temp, 22);
+}
+
static INLINE void
dis_assemble_21 (as21, x)
unsigned int as21, *x;
*x = temp;
}
-static INLINE unsigned long
-sign_extend (x, len)
- unsigned int x, len;
-{
- return (int)(x >> (len - 1) ? (-1 << len) | x : x);
-}
-
static INLINE unsigned int
ones (n)
int n;
{
switch (r_field)
{
- case e_fsel: /* F : no change */
+ case e_fsel: /* F : no change */
case e_nsel: /* N : no change */
value += constant_value;
break;
value = (value & 0xfffff800) >> 11;
break;
- case e_rssel: /* RS : Sign extend from bit 21 */
+ case e_rssel: /* RS : Sign extend from bit 21 */
value += constant_value;
if (value & 0x00000400)
value |= 0xfffff800;
value = (value & 0xfffff800) >> 11;
break;
- case e_rsel: /* R : Set bits 0-20 to zero */
+ case e_rsel: /* R : Set bits 0-20 to zero */
value += constant_value;
value = value & 0x7ff;
break;
case e_ldsel: /* LD : Add 0x800, arithmetic shift
- right 11 bits */
+ right 11 bits */
value += constant_value;
value += 0x800;
value = (value & 0xfffff800) >> 11;
break;
- case e_rdsel: /* RD : Set bits 0-20 to one */
+ case e_rdsel: /* RD : Set bits 0-20 to one */
value += constant_value;
value |= 0xfffff800;
break;
projects / external / binutils.git / blobdiff