aboutsummaryrefslogtreecommitdiff
path: root/sim/arm/iwmmxt.c
diff options
context:
space:
mode:
Diffstat (limited to 'sim/arm/iwmmxt.c')
-rw-r--r--sim/arm/iwmmxt.c3730
1 files changed, 3730 insertions, 0 deletions
diff --git a/sim/arm/iwmmxt.c b/sim/arm/iwmmxt.c
new file mode 100644
index 0000000..72444f6
--- /dev/null
+++ b/sim/arm/iwmmxt.c
@@ -0,0 +1,3730 @@
+/* iwmmxt.c -- Intel(r) Wireless MMX(tm) technology co-processor interface.
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ Contributed by matthew green (mrg@redhat.com).
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "armdefs.h"
+#include "armos.h"
+#include "armemu.h"
+#include "ansidecl.h"
+#include "iwmmxt.h"
+
+/* #define DEBUG 1 */
+
+/* Intel(r) Wireless MMX(tm) technology co-processor.
+ It uses co-processor numbers (0 and 1). There are 16 vector registers wRx
+ and 16 control registers wCx. Co-processors 0 and 1 are used in MCR/MRC
+ to access wRx and wCx respectively. */
+
+static ARMdword wR[16];
+static ARMword wC[16] = { 0x69051010 };
+
+#define SUBSTR(w,t,m,n) ((t)(w << ((sizeof (t) * 8 - 1) - (n))) \
+ >> (((sizeof (t) * 8 - 1) - (n)) + (m)))
+#define wCBITS(w,x,y) SUBSTR (wC[w], ARMword, x, y)
+#define wRBITS(w,x,y) SUBSTR (wR[w], ARMdword, x, y)
+#define wCID 0
+#define wCon 1
+#define wCSSF 2
+#define wCASF 3
+#define wCGR0 8
+#define wCGR1 9
+#define wCGR2 10
+#define wCGR3 11
+
+/* Bits in the wCon register. */
+#define WCON_CUP (1 << 0)
+#define WCON_MUP (1 << 1)
+
+/* Set the SIMD wCASF flags for 8, 16, 32 or 64-bit operations. */
+#define SIMD8_SET(x, v, n, b) (x) |= ((v != 0) << ((((b) + 1) * 4) + (n)))
+#define SIMD16_SET(x, v, n, h) (x) |= ((v != 0) << ((((h) + 1) * 8) + (n)))
+#define SIMD32_SET(x, v, n, w) (x) |= ((v != 0) << ((((w) + 1) * 16) + (n)))
+#define SIMD64_SET(x, v, n) (x) |= ((v != 0) << (32 + (n)))
+
+/* Flags to pass as "n" above. */
+#define SIMD_NBIT -1
+#define SIMD_ZBIT -2
+#define SIMD_CBIT -3
+#define SIMD_VBIT -4
+
+/* Various status bit macros. */
+#define NBIT8(x) ((x) & 0x80)
+#define NBIT16(x) ((x) & 0x8000)
+#define NBIT32(x) ((x) & 0x80000000)
+#define NBIT64(x) ((x) & 0x8000000000000000ULL)
+#define ZBIT8(x) (((x) & 0xff) == 0)
+#define ZBIT16(x) (((x) & 0xffff) == 0)
+#define ZBIT32(x) (((x) & 0xffffffff) == 0)
+#define ZBIT64(x) (x == 0)
+
+/* Access byte/half/word "n" of register "x". */
+#define wRBYTE(x,n) wRBITS ((x), (n) * 8, (n) * 8 + 7)
+#define wRHALF(x,n) wRBITS ((x), (n) * 16, (n) * 16 + 15)
+#define wRWORD(x,n) wRBITS ((x), (n) * 32, (n) * 32 + 31)
+
+/* Macro to handle how the G bit selects wCGR registers. */
+#define DECODE_G_BIT(state, instr, shift) \
+{ \
+ unsigned int reg; \
+ \
+ reg = BITS (0, 3); \
+ \
+ if (BIT (8)) /* G */ \
+ { \
+ if (reg < wCGR0 || reg > wCGR3) \
+ { \
+ ARMul_UndefInstr (state, instr); \
+ return ARMul_DONE; \
+ } \
+ shift = wC [reg]; \
+ } \
+ else \
+ shift = wR [reg]; \
+ \
+ shift &= 0xff; \
+}
+
+/* Index calculations for the satrv[] array. */
+#define BITIDX8(x) (x)
+#define BITIDX16(x) (((x) + 1) * 2 - 1)
+#define BITIDX32(x) (((x) + 1) * 4 - 1)
+
+/* Sign extension macros. */
+#define EXTEND8(a) ((a) & 0x80 ? ((a) | 0xffffff00) : (a))
+#define EXTEND16(a) ((a) & 0x8000 ? ((a) | 0xffff0000) : (a))
+#define EXTEND32(a) ((a) & 0x80000000ULL ? ((a) | 0xffffffff00000000ULL) : (a))
+
+/* Set the wCSSF from 8 values. */
+#define SET_wCSSF(a,b,c,d,e,f,g,h) \
+ wC[wCSSF] = (((h) != 0) << 7) | (((g) != 0) << 6) \
+ | (((f) != 0) << 5) | (((e) != 0) << 4) \
+ | (((d) != 0) << 3) | (((c) != 0) << 2) \
+ | (((b) != 0) << 1) | (((a) != 0) << 0);
+
+/* Set the wCSSR from an array with 8 values. */
+#define SET_wCSSFvec(v) \
+ SET_wCSSF((v)[0],(v)[1],(v)[2],(v)[3],(v)[4],(v)[5],(v)[6],(v)[7])
+
+/* Size qualifiers for vector operations. */
+#define Bqual 0
+#define Hqual 1
+#define Wqual 2
+#define Dqual 3
+
+/* Saturation qualifiers for vector operations. */
+#define NoSaturation 0
+#define UnsignedSaturation 1
+#define SignedSaturation 3
+
+
+/* Prototypes. */
+static ARMword Add32 (ARMword, ARMword, int *, int *, ARMword);
+static ARMdword AddS32 (ARMdword, ARMdword, int *, int *);
+static ARMdword AddU32 (ARMdword, ARMdword, int *, int *);
+static ARMword AddS16 (ARMword, ARMword, int *, int *);
+static ARMword AddU16 (ARMword, ARMword, int *, int *);
+static ARMword AddS8 (ARMword, ARMword, int *, int *);
+static ARMword AddU8 (ARMword, ARMword, int *, int *);
+static ARMword Sub32 (ARMword, ARMword, int *, int *, ARMword);
+static ARMdword SubS32 (ARMdword, ARMdword, int *, int *);
+static ARMdword SubU32 (ARMdword, ARMdword, int *, int *);
+static ARMword SubS16 (ARMword, ARMword, int *, int *);
+static ARMword SubS8 (ARMword, ARMword, int *, int *);
+static ARMword SubU16 (ARMword, ARMword, int *, int *);
+static ARMword SubU8 (ARMword, ARMword, int *, int *);
+static unsigned char IwmmxtSaturateU8 (signed short, int *);
+static signed char IwmmxtSaturateS8 (signed short, int *);
+static unsigned short IwmmxtSaturateU16 (signed int, int *);
+static signed short IwmmxtSaturateS16 (signed int, int *);
+static unsigned long IwmmxtSaturateU32 (signed long long, int *);
+static signed long IwmmxtSaturateS32 (signed long long, int *);
+static ARMword Compute_Iwmmxt_Address (ARMul_State *, ARMword, int *);
+static ARMdword Iwmmxt_Load_Double_Word (ARMul_State *, ARMword);
+static ARMword Iwmmxt_Load_Word (ARMul_State *, ARMword);
+static ARMword Iwmmxt_Load_Half_Word (ARMul_State *, ARMword);
+static ARMword Iwmmxt_Load_Byte (ARMul_State *, ARMword);
+static void Iwmmxt_Store_Double_Word (ARMul_State *, ARMword, ARMdword);
+static void Iwmmxt_Store_Word (ARMul_State *, ARMword, ARMword);
+static void Iwmmxt_Store_Half_Word (ARMul_State *, ARMword, ARMword);
+static void Iwmmxt_Store_Byte (ARMul_State *, ARMword, ARMword);
+static int Process_Instruction (ARMul_State *, ARMword);
+
+static int TANDC (ARMul_State *, ARMword);
+static int TBCST (ARMul_State *, ARMword);
+static int TEXTRC (ARMul_State *, ARMword);
+static int TEXTRM (ARMul_State *, ARMword);
+static int TINSR (ARMul_State *, ARMword);
+static int TMCR (ARMul_State *, ARMword);
+static int TMCRR (ARMul_State *, ARMword);
+static int TMIA (ARMul_State *, ARMword);
+static int TMIAPH (ARMul_State *, ARMword);
+static int TMIAxy (ARMul_State *, ARMword);
+static int TMOVMSK (ARMul_State *, ARMword);
+static int TMRC (ARMul_State *, ARMword);
+static int TMRRC (ARMul_State *, ARMword);
+static int TORC (ARMul_State *, ARMword);
+static int WACC (ARMul_State *, ARMword);
+static int WADD (ARMul_State *, ARMword);
+static int WALIGNI (ARMword);
+static int WALIGNR (ARMul_State *, ARMword);
+static int WAND (ARMword);
+static int WANDN (ARMword);
+static int WAVG2 (ARMword);
+static int WCMPEQ (ARMul_State *, ARMword);
+static int WCMPGT (ARMul_State *, ARMword);
+static int WLDR (ARMul_State *, ARMword);
+static int WMAC (ARMword);
+static int WMADD (ARMword);
+static int WMAX (ARMul_State *, ARMword);
+static int WMIN (ARMul_State *, ARMword);
+static int WMUL (ARMword);
+static int WOR (ARMword);
+static int WPACK (ARMul_State *, ARMword);
+static int WROR (ARMul_State *, ARMword);
+static int WSAD (ARMword);
+static int WSHUFH (ARMword);
+static int WSLL (ARMul_State *, ARMword);
+static int WSRA (ARMul_State *, ARMword);
+static int WSRL (ARMul_State *, ARMword);
+static int WSTR (ARMul_State *, ARMword);
+static int WSUB (ARMul_State *, ARMword);
+static int WUNPCKEH (ARMul_State *, ARMword);
+static int WUNPCKEL (ARMul_State *, ARMword);
+static int WUNPCKIH (ARMul_State *, ARMword);
+static int WUNPCKIL (ARMul_State *, ARMword);
+static int WXOR (ARMword);
+
+/* This function does the work of adding two 32bit values
+ together, and calculating if a carry has occurred. */
+
+static ARMword
+Add32 (ARMword a1,
+ ARMword a2,
+ int * carry_ptr,
+ int * overflow_ptr,
+ ARMword sign_mask)
+{
+ ARMword result = (a1 + a2);
+ unsigned int uresult = (unsigned int) result;
+ unsigned int ua1 = (unsigned int) a1;
+
+ /* If (result == a1) and (a2 == 0),
+ or (result > a2) then we have no carry. */
+ * carry_ptr = ((uresult == ua1) ? (a2 != 0) : (uresult < ua1));
+
+ /* Overflow occurs when both arguments are the
+ same sign, but the result is a different sign. */
+ * overflow_ptr = ( ( (result & sign_mask) && !(a1 & sign_mask) && !(a2 & sign_mask))
+ || (!(result & sign_mask) && (a1 & sign_mask) && (a2 & sign_mask)));
+
+ return result;
+}
+
+static ARMdword
+AddS32 (ARMdword a1, ARMdword a2, int * carry_ptr, int * overflow_ptr)
+{
+ ARMdword result;
+ unsigned int uresult;
+ unsigned int ua1;
+
+ a1 = EXTEND32 (a1);
+ a2 = EXTEND32 (a2);
+
+ result = a1 + a2;
+ uresult = (unsigned int) result;
+ ua1 = (unsigned int) a1;
+
+ * carry_ptr = ((uresult == a1) ? (a2 != 0) : (uresult < ua1));
+
+ * overflow_ptr = ( ( (result & 0x80000000ULL) && !(a1 & 0x80000000ULL) && !(a2 & 0x80000000ULL))
+ || (!(result & 0x80000000ULL) && (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL)));
+
+ return result;
+}
+
+static ARMdword
+AddU32 (ARMdword a1, ARMdword a2, int * carry_ptr, int * overflow_ptr)
+{
+ ARMdword result;
+ unsigned int uresult;
+ unsigned int ua1;
+
+ a1 &= 0xffffffff;
+ a2 &= 0xffffffff;
+
+ result = a1 + a2;
+ uresult = (unsigned int) result;
+ ua1 = (unsigned int) a1;
+
+ * carry_ptr = ((uresult == a1) ? (a2 != 0) : (uresult < ua1));
+
+ * overflow_ptr = ( ( (result & 0x80000000ULL) && !(a1 & 0x80000000ULL) && !(a2 & 0x80000000ULL))
+ || (!(result & 0x80000000ULL) && (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL)));
+
+ return result;
+}
+
+static ARMword
+AddS16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 = EXTEND16 (a1);
+ a2 = EXTEND16 (a2);
+
+ return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
+}
+
+static ARMword
+AddU16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 &= 0xffff;
+ a2 &= 0xffff;
+
+ return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
+}
+
+static ARMword
+AddS8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 = EXTEND8 (a1);
+ a2 = EXTEND8 (a2);
+
+ return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
+}
+
+static ARMword
+AddU8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 &= 0xff;
+ a2 &= 0xff;
+
+ return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
+}
+
+static ARMword
+Sub32 (ARMword a1,
+ ARMword a2,
+ int * borrow_ptr,
+ int * overflow_ptr,
+ ARMword sign_mask)
+{
+ ARMword result = (a1 - a2);
+ unsigned int ua1 = (unsigned int) a1;
+ unsigned int ua2 = (unsigned int) a2;
+
+ /* A borrow occurs if a2 is (unsigned) larger than a1.
+ However the carry flag is *cleared* if a borrow occurs. */
+ * borrow_ptr = ! (ua2 > ua1);
+
+ /* Overflow occurs when a negative number is subtracted from a
+ positive number and the result is negative or a positive
+ number is subtracted from a negative number and the result is
+ positive. */
+ * overflow_ptr = ( (! (a1 & sign_mask) && (a2 & sign_mask) && (result & sign_mask))
+ || ((a1 & sign_mask) && ! (a2 & sign_mask) && ! (result & sign_mask)));
+
+ return result;
+}
+
+static ARMdword
+SubS32 (ARMdword a1, ARMdword a2, int * borrow_ptr, int * overflow_ptr)
+{
+ ARMdword result;
+ unsigned int ua1;
+ unsigned int ua2;
+
+ a1 = EXTEND32 (a1);
+ a2 = EXTEND32 (a2);
+
+ result = a1 - a2;
+ ua1 = (unsigned int) a1;
+ ua2 = (unsigned int) a2;
+
+ * borrow_ptr = ! (ua2 > ua1);
+
+ * overflow_ptr = ( (! (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL) && (result & 0x80000000ULL))
+ || ((a1 & 0x80000000ULL) && ! (a2 & 0x80000000ULL) && ! (result & 0x80000000ULL)));
+
+ return result;
+}
+
+static ARMword
+SubS16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 = EXTEND16 (a1);
+ a2 = EXTEND16 (a2);
+
+ return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
+}
+
+static ARMword
+SubS8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 = EXTEND8 (a1);
+ a2 = EXTEND8 (a2);
+
+ return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
+}
+
+static ARMword
+SubU16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 &= 0xffff;
+ a2 &= 0xffff;
+
+ return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
+}
+
+static ARMword
+SubU8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
+{
+ a1 &= 0xff;
+ a2 &= 0xff;
+
+ return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
+}
+
+static ARMdword
+SubU32 (ARMdword a1, ARMdword a2, int * borrow_ptr, int * overflow_ptr)
+{
+ ARMdword result;
+ unsigned int ua1;
+ unsigned int ua2;
+
+ a1 &= 0xffffffff;
+ a2 &= 0xffffffff;
+
+ result = a1 - a2;
+ ua1 = (unsigned int) a1;
+ ua2 = (unsigned int) a2;
+
+ * borrow_ptr = ! (ua2 > ua1);
+
+ * overflow_ptr = ( (! (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL) && (result & 0x80000000ULL))
+ || ((a1 & 0x80000000ULL) && ! (a2 & 0x80000000ULL) && ! (result & 0x80000000ULL)));
+
+ return result;
+}
+
+/* For the saturation. */
+
+static unsigned char
+IwmmxtSaturateU8 (signed short val, int * sat)
+{
+ unsigned char rv;
+
+ if (val < 0)
+ {
+ rv = 0;
+ *sat = 1;
+ }
+ else if (val > 0xff)
+ {
+ rv = 0xff;
+ *sat = 1;
+ }
+ else
+ {
+ rv = val & 0xff;
+ *sat = 0;
+ }
+ return rv;
+}
+
+static signed char
+IwmmxtSaturateS8 (signed short val, int * sat)
+{
+ signed char rv;
+
+ if (val < -0x80)
+ {
+ rv = -0x80;
+ *sat = 1;
+ }
+ else if (val > 0x7f)
+ {
+ rv = 0x7f;
+ *sat = 1;
+ }
+ else
+ {
+ rv = val & 0xff;
+ *sat = 0;
+ }
+ return rv;
+}
+
+static unsigned short
+IwmmxtSaturateU16 (signed int val, int * sat)
+{
+ unsigned short rv;
+
+ if (val < 0)
+ {
+ rv = 0;
+ *sat = 1;
+ }
+ else if (val > 0xffff)
+ {
+ rv = 0xffff;
+ *sat = 1;
+ }
+ else
+ {
+ rv = val & 0xffff;
+ *sat = 0;
+ }
+ return rv;
+}
+
+static signed short
+IwmmxtSaturateS16 (signed int val, int * sat)
+{
+ signed short rv;
+
+ if (val < -0x8000)
+ {
+ rv = - 0x8000;
+ *sat = 1;
+ }
+ else if (val > 0x7fff)
+ {
+ rv = 0x7fff;
+ *sat = 1;
+ }
+ else
+ {
+ rv = val & 0xffff;
+ *sat = 0;
+ }
+ return rv;
+}
+
+static unsigned long
+IwmmxtSaturateU32 (signed long long val, int * sat)
+{
+ unsigned long rv;
+
+ if (val < 0)
+ {
+ rv = 0;
+ *sat = 1;
+ }
+ else if (val > 0xffffffff)
+ {
+ rv = 0xffffffff;
+ *sat = 1;
+ }
+ else
+ {
+ rv = val & 0xffffffff;
+ *sat = 0;
+ }
+ return rv;
+}
+
+static signed long
+IwmmxtSaturateS32 (signed long long val, int * sat)
+{
+ signed long rv;
+
+ if (val < -0x80000000LL)
+ {
+ rv = -0x80000000;
+ *sat = 1;
+ }
+ else if (val > 0x7fffffff)
+ {
+ rv = 0x7fffffff;
+ *sat = 1;
+ }
+ else
+ {
+ rv = val & 0xffffffff;
+ *sat = 0;
+ }
+ return rv;
+}
+
+/* Intel(r) Wireless MMX(tm) technology Acessor functions. */
+
+unsigned
+IwmmxtLDC (ARMul_State * state ATTRIBUTE_UNUSED,
+ unsigned type ATTRIBUTE_UNUSED,
+ ARMword instr,
+ ARMword data)
+{
+ return ARMul_CANT;
+}
+
+unsigned
+IwmmxtSTC (ARMul_State * state ATTRIBUTE_UNUSED,
+ unsigned type ATTRIBUTE_UNUSED,
+ ARMword instr,
+ ARMword * data)
+{
+ return ARMul_CANT;
+}
+
+unsigned
+IwmmxtMRC (ARMul_State * state ATTRIBUTE_UNUSED,
+ unsigned type ATTRIBUTE_UNUSED,
+ ARMword instr,
+ ARMword * value)
+{
+ return ARMul_CANT;
+}
+
+unsigned
+IwmmxtMCR (ARMul_State * state ATTRIBUTE_UNUSED,
+ unsigned type ATTRIBUTE_UNUSED,
+ ARMword instr,
+ ARMword value)
+{
+ return ARMul_CANT;
+}
+
+unsigned
+IwmmxtCDP (ARMul_State * state, unsigned type, ARMword instr)
+{
+ return ARMul_CANT;
+}
+
+/* Intel(r) Wireless MMX(tm) technology instruction implementations. */
+
+static int
+TANDC (ARMul_State * state, ARMword instr)
+{
+ ARMword cpsr;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tandc\n");
+#endif
+
+ /* The Rd field must be r15. */
+ if (BITS (12, 15) != 15)
+ return ARMul_CANT;
+
+ /* The CRn field must be r3. */
+ if (BITS (16, 19) != 3)
+ return ARMul_CANT;
+
+ /* The CRm field must be r0. */
+ if (BITS (0, 3) != 0)
+ return ARMul_CANT;
+
+ cpsr = ARMul_GetCPSR (state) & 0x0fffffff;
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ cpsr |= ( (wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 24, 27)
+ & wCBITS (wCASF, 20, 23) & wCBITS (wCASF, 16, 19)
+ & wCBITS (wCASF, 12, 15) & wCBITS (wCASF, 8, 11)
+ & wCBITS (wCASF, 4, 7) & wCBITS (wCASF, 0, 3)) << 28);
+ break;
+
+ case Hqual:
+ cpsr |= ( (wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 20, 23)
+ & wCBITS (wCASF, 12, 15) & wCBITS (wCASF, 4, 7)) << 28);
+ break;
+
+ case Wqual:
+ cpsr |= ((wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 12, 15)) << 28);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ ARMul_SetCPSR (state, cpsr);
+
+ return ARMul_DONE;
+}
+
+static int
+TBCST (ARMul_State * state, ARMword instr)
+{
+ ARMdword Rn;
+ int wRd;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tbcst\n");
+#endif
+
+ Rn = state->Reg [BITS (12, 15)];
+ if (BITS (12, 15) == 15)
+ Rn &= 0xfffffffc;
+
+ wRd = BITS (16, 19);
+
+ switch (BITS (6, 7))
+ {
+ case Bqual:
+ Rn &= 0xff;
+ wR [wRd] = (Rn << 56) | (Rn << 48) | (Rn << 40) | (Rn << 32)
+ | (Rn << 24) | (Rn << 16) | (Rn << 8) | Rn;
+ break;
+
+ case Hqual:
+ Rn &= 0xffff;
+ wR [wRd] = (Rn << 48) | (Rn << 32) | (Rn << 16) | Rn;
+ break;
+
+ case Wqual:
+ Rn &= 0xffffffff;
+ wR [wRd] = (Rn << 32) | Rn;
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ break;
+ }
+
+ wC [wCon] |= WCON_MUP;
+ return ARMul_DONE;
+}
+
+static int
+TEXTRC (ARMul_State * state, ARMword instr)
+{
+ ARMword cpsr;
+ ARMword selector;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "textrc\n");
+#endif
+
+ /* The Rd field must be r15. */
+ if (BITS (12, 15) != 15)
+ return ARMul_CANT;
+
+ /* The CRn field must be r3. */
+ if (BITS (16, 19) != 3)
+ return ARMul_CANT;
+
+ /* The CRm field must be 0xxx. */
+ if (BIT (3) != 0)
+ return ARMul_CANT;
+
+ selector = BITS (0, 2);
+ cpsr = ARMul_GetCPSR (state) & 0x0fffffff;
+
+ switch (BITS (22, 23))
+ {
+ case Bqual: selector *= 4; break;
+ case Hqual: selector = ((selector & 3) * 8) + 4; break;
+ case Wqual: selector = ((selector & 1) * 16) + 12; break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ cpsr |= wCBITS (wCASF, selector, selector + 3) << 28;
+ ARMul_SetCPSR (state, cpsr);
+
+ return ARMul_DONE;
+}
+
+static int
+TEXTRM (ARMul_State * state, ARMword instr)
+{
+ ARMword Rd;
+ int offset;
+ int wRn;
+ int sign;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "textrm\n");
+#endif
+
+ wRn = BITS (16, 19);
+ sign = BIT (3);
+ offset = BITS (0, 2);
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ offset *= 8;
+ Rd = wRBITS (wRn, offset, offset + 7);
+ if (sign)
+ Rd = EXTEND8 (Rd);
+ break;
+
+ case Hqual:
+ offset = (offset & 3) * 16;
+ Rd = wRBITS (wRn, offset, offset + 15);
+ if (sign)
+ Rd = EXTEND16 (Rd);
+ break;
+
+ case Wqual:
+ offset = (offset & 1) * 32;
+ Rd = wRBITS (wRn, offset, offset + 31);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ if (BITS (12, 15) == 15)
+ ARMul_UndefInstr (state, instr);
+ else
+ state->Reg [BITS (12, 15)] = Rd;
+
+ return ARMul_DONE;
+}
+
+static int
+TINSR (ARMul_State * state, ARMword instr)
+{
+ ARMdword data;
+ ARMword offset;
+ int wRd;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tinsr\n");
+#endif
+
+ wRd = BITS (16, 19);
+ data = state->Reg [BITS (12, 15)];
+ offset = BITS (0, 2);
+
+ switch (BITS (6, 7))
+ {
+ case Bqual:
+ data &= 0xff;
+ switch (offset)
+ {
+ case 0: wR [wRd] = data | (wRBITS (wRd, 8, 63) << 8); break;
+ case 1: wR [wRd] = wRBITS (wRd, 0, 7) | (data << 8) | (wRBITS (wRd, 16, 63) << 16); break;
+ case 2: wR [wRd] = wRBITS (wRd, 0, 15) | (data << 16) | (wRBITS (wRd, 24, 63) << 24); break;
+ case 3: wR [wRd] = wRBITS (wRd, 0, 23) | (data << 24) | (wRBITS (wRd, 32, 63) << 32); break;
+ case 4: wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32) | (wRBITS (wRd, 40, 63) << 40); break;
+ case 5: wR [wRd] = wRBITS (wRd, 0, 39) | (data << 40) | (wRBITS (wRd, 48, 63) << 48); break;
+ case 6: wR [wRd] = wRBITS (wRd, 0, 47) | (data << 48) | (wRBITS (wRd, 56, 63) << 56); break;
+ case 7: wR [wRd] = wRBITS (wRd, 0, 55) | (data << 56); break;
+ }
+ break;
+
+ case Hqual:
+ data &= 0xffff;
+
+ switch (offset & 3)
+ {
+ case 0: wR [wRd] = data | (wRBITS (wRd, 16, 63) << 16); break;
+ case 1: wR [wRd] = wRBITS (wRd, 0, 15) | (data << 16) | (wRBITS (wRd, 32, 63) << 32); break;
+ case 2: wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32) | (wRBITS (wRd, 48, 63) << 48); break;
+ case 3: wR [wRd] = wRBITS (wRd, 0, 47) | (data << 48); break;
+ }
+ break;
+
+ case Wqual:
+ if (offset & 1)
+ wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32);
+ else
+ wR [wRd] = (wRBITS (wRd, 32, 63) << 32) | data;
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ break;
+ }
+
+ wC [wCon] |= WCON_MUP;
+ return ARMul_DONE;
+}
+
+static int
+TMCR (ARMul_State * state, ARMword instr)
+{
+ ARMword val;
+ int wCreg;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmcr\n");
+#endif
+
+ if (BITS (0, 3) != 0)
+ return ARMul_CANT;
+
+ val = state->Reg [BITS (12, 15)];
+ if (BITS (12, 15) == 15)
+ val &= 0xfffffffc;
+
+ wCreg = BITS (16, 19);
+
+ switch (wCreg)
+ {
+ case wCID:
+ /* The wCID register is read only. */
+ break;
+
+ case wCon:
+ /* Writing to the MUP or CUP bits clears them. */
+ wC [wCon] &= ~ (val & 0x3);
+ break;
+
+ case wCSSF:
+ /* Only the bottom 8 bits can be written to.
+ The higher bits write as zero. */
+ wC [wCSSF] = (val & 0xff);
+ wC [wCon] |= WCON_CUP;
+ break;
+
+ default:
+ wC [wCreg] = val;
+ wC [wCon] |= WCON_CUP;
+ break;
+ }
+
+ return ARMul_DONE;
+}
+
+static int
+TMCRR (ARMul_State * state, ARMword instr)
+{
+ ARMdword RdHi = state->Reg [BITS (16, 19)];
+ ARMword RdLo = state->Reg [BITS (12, 15)];
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmcrr\n");
+#endif
+
+ if ((BITS (16, 19) == 15) || (BITS (12, 15) == 15))
+ return ARMul_CANT;
+
+ wR [BITS (0, 3)] = (RdHi << 32) | RdLo;
+
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+TMIA (ARMul_State * state, ARMword instr)
+{
+ signed long long a, b;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmia\n");
+#endif
+
+ if ((BITS (0, 3) == 15) || (BITS (12, 15) == 15))
+ {
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ a = state->Reg [BITS (0, 3)];
+ b = state->Reg [BITS (12, 15)];
+
+ a = EXTEND32 (a);
+ b = EXTEND32 (b);
+
+ wR [BITS (5, 8)] += a * b;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+TMIAPH (ARMul_State * state, ARMword instr)
+{
+ signed long a, b, result;
+ signed long long r;
+ ARMword Rm = state->Reg [BITS (0, 3)];
+ ARMword Rs = state->Reg [BITS (12, 15)];
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmiaph\n");
+#endif
+
+ if (BITS (0, 3) == 15 || BITS (12, 15) == 15)
+ {
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ a = SUBSTR (Rs, ARMword, 16, 31);
+ b = SUBSTR (Rm, ARMword, 16, 31);
+
+ a = EXTEND16 (a);
+ b = EXTEND16 (b);
+
+ result = a * b;
+
+ r = result;
+ r = EXTEND32 (r);
+
+ wR [BITS (5, 8)] += r;
+
+ a = SUBSTR (Rs, ARMword, 0, 15);
+ b = SUBSTR (Rm, ARMword, 0, 15);
+
+ a = EXTEND16 (a);
+ b = EXTEND16 (b);
+
+ result = a * b;
+
+ r = result;
+ r = EXTEND32 (r);
+
+ wR [BITS (5, 8)] += r;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+TMIAxy (ARMul_State * state, ARMword instr)
+{
+ ARMword Rm;
+ ARMword Rs;
+ long long temp;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmiaxy\n");
+#endif
+
+ if (BITS (0, 3) == 15 || BITS (12, 15) == 15)
+ {
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ Rm = state->Reg [BITS (0, 3)];
+ if (BIT (17))
+ Rm >>= 16;
+ else
+ Rm &= 0xffff;
+
+ Rs = state->Reg [BITS (12, 15)];
+ if (BIT (16))
+ Rs >>= 16;
+ else
+ Rs &= 0xffff;
+
+ if (Rm & (1 << 15))
+ Rm -= 1 << 16;
+
+ if (Rs & (1 << 15))
+ Rs -= 1 << 16;
+
+ Rm *= Rs;
+ temp = Rm;
+
+ if (temp & (1 << 31))
+ temp -= 1ULL << 32;
+
+ wR [BITS (5, 8)] += temp;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+TMOVMSK (ARMul_State * state, ARMword instr)
+{
+ ARMdword result;
+ int wRn;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmovmsk\n");
+#endif
+
+ /* The CRm field must be r0. */
+ if (BITS (0, 3) != 0)
+ return ARMul_CANT;
+
+ wRn = BITS (16, 19);
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ result = ( (wRBITS (wRn, 63, 63) << 7)
+ | (wRBITS (wRn, 55, 55) << 6)
+ | (wRBITS (wRn, 47, 47) << 5)
+ | (wRBITS (wRn, 39, 39) << 4)
+ | (wRBITS (wRn, 31, 31) << 3)
+ | (wRBITS (wRn, 23, 23) << 2)
+ | (wRBITS (wRn, 15, 15) << 1)
+ | (wRBITS (wRn, 7, 7) << 0));
+ break;
+
+ case Hqual:
+ result = ( (wRBITS (wRn, 63, 63) << 3)
+ | (wRBITS (wRn, 47, 47) << 2)
+ | (wRBITS (wRn, 31, 31) << 1)
+ | (wRBITS (wRn, 15, 15) << 0));
+ break;
+
+ case Wqual:
+ result = (wRBITS (wRn, 63, 63) << 1) | wRBITS (wRn, 31, 31);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ state->Reg [BITS (12, 15)] = result;
+
+ return ARMul_DONE;
+}
+
+static int
+TMRC (ARMul_State * state, ARMword instr)
+{
+ int reg = BITS (12, 15);
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmrc\n");
+#endif
+
+ if (BITS (0, 3) != 0)
+ return ARMul_CANT;
+
+ if (reg == 15)
+ ARMul_UndefInstr (state, instr);
+ else
+ state->Reg [reg] = wC [BITS (16, 19)];
+
+ return ARMul_DONE;
+}
+
+static int
+TMRRC (ARMul_State * state, ARMword instr)
+{
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "tmrrc\n");
+#endif
+
+ if ((BITS (16, 19) == 15) || (BITS (12, 15) == 15) || (BITS (4, 11) != 0))
+ ARMul_UndefInstr (state, instr);
+ else
+ {
+ state->Reg [BITS (16, 19)] = wRBITS (BITS (0, 3), 32, 63);
+ state->Reg [BITS (12, 15)] = wRBITS (BITS (0, 3), 0, 31);
+ }
+
+ return ARMul_DONE;
+}
+
+static int
+TORC (ARMul_State * state, ARMword instr)
+{
+ ARMword cpsr = ARMul_GetCPSR (state);
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "torc\n");
+#endif
+
+ /* The Rd field must be r15. */
+ if (BITS (12, 15) != 15)
+ return ARMul_CANT;
+
+ /* The CRn field must be r3. */
+ if (BITS (16, 19) != 3)
+ return ARMul_CANT;
+
+ /* The CRm field must be r0. */
+ if (BITS (0, 3) != 0)
+ return ARMul_CANT;
+
+ cpsr &= 0x0fffffff;
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ cpsr |= ( (wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 24, 27)
+ | wCBITS (wCASF, 20, 23) | wCBITS (wCASF, 16, 19)
+ | wCBITS (wCASF, 12, 15) | wCBITS (wCASF, 8, 11)
+ | wCBITS (wCASF, 4, 7) | wCBITS (wCASF, 0, 3)) << 28);
+ break;
+
+ case Hqual:
+ cpsr |= ( (wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 20, 23)
+ | wCBITS (wCASF, 12, 15) | wCBITS (wCASF, 4, 7)) << 28);
+ break;
+
+ case Wqual:
+ cpsr |= ((wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 12, 15)) << 28);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ ARMul_SetCPSR (state, cpsr);
+
+ return ARMul_DONE;
+}
+
+static int
+WACC (ARMul_State * state, ARMword instr)
+{
+ int wRn;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wacc\n");
+#endif
+
+ wRn = BITS (16, 19);
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ wR [BITS (12, 15)] =
+ wRBITS (wRn, 56, 63) + wRBITS (wRn, 48, 55)
+ + wRBITS (wRn, 40, 47) + wRBITS (wRn, 32, 39)
+ + wRBITS (wRn, 24, 31) + wRBITS (wRn, 16, 23)
+ + wRBITS (wRn, 8, 15) + wRBITS (wRn, 0, 7);
+ break;
+
+ case Hqual:
+ wR [BITS (12, 15)] =
+ wRBITS (wRn, 48, 63) + wRBITS (wRn, 32, 47)
+ + wRBITS (wRn, 16, 31) + wRBITS (wRn, 0, 15);
+ break;
+
+ case Wqual:
+ wR [BITS (12, 15)] = wRBITS (wRn, 32, 63) + wRBITS (wRn, 0, 31);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ break;
+ }
+
+ wC [wCon] |= WCON_MUP;
+ return ARMul_DONE;
+}
+
+static int
+WADD (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword x;
+ ARMdword s;
+ ARMword psr = 0;
+ int i;
+ int carry;
+ int overflow;
+ int satrv[8];
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wadd\n");
+#endif
+
+ /* Add two numbers using the specified function,
+ leaving setting the carry bit as required. */
+#define ADDx(x, y, m, f) \
+ (*f) (wRBITS (BITS (16, 19), (x), (y)) & (m), \
+ wRBITS (BITS ( 0, 3), (x), (y)) & (m), \
+ & carry, & overflow)
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 8; i++)
+ {
+ switch (BITS (20, 21))
+ {
+ case NoSaturation:
+ s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddS8);
+ satrv [BITIDX8 (i)] = 0;
+ r |= (s & 0xff) << (i * 8);
+ SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
+ SIMD8_SET (psr, carry, SIMD_CBIT, i);
+ SIMD8_SET (psr, overflow, SIMD_VBIT, i);
+ break;
+
+ case UnsignedSaturation:
+ s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddU8);
+ x = IwmmxtSaturateU8 (s, satrv + BITIDX8 (i));
+ r |= (x & 0xff) << (i * 8);
+ SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX8 (i)])
+ {
+ SIMD8_SET (psr, carry, SIMD_CBIT, i);
+ SIMD8_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ case SignedSaturation:
+ s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddS8);
+ x = IwmmxtSaturateS8 (s, satrv + BITIDX8 (i));
+ r |= (x & 0xff) << (i * 8);
+ SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX8 (i)])
+ {
+ SIMD8_SET (psr, carry, SIMD_CBIT, i);
+ SIMD8_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+ }
+ break;
+
+ case Hqual:
+ satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0;
+
+ for (i = 0; i < 4; i++)
+ {
+ switch (BITS (20, 21))
+ {
+ case NoSaturation:
+ s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddS16);
+ satrv [BITIDX16 (i)] = 0;
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ SIMD16_SET (psr, carry, SIMD_CBIT, i);
+ SIMD16_SET (psr, overflow, SIMD_VBIT, i);
+ break;
+
+ case UnsignedSaturation:
+ s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddU16);
+ x = IwmmxtSaturateU16 (s, satrv + BITIDX16 (i));
+ r |= (x & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX16 (i)])
+ {
+ SIMD16_SET (psr, carry, SIMD_CBIT, i);
+ SIMD16_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ case SignedSaturation:
+ s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddS16);
+ x = IwmmxtSaturateS16 (s, satrv + BITIDX16 (i));
+ r |= (x & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX16 (i)])
+ {
+ SIMD16_SET (psr, carry, SIMD_CBIT, i);
+ SIMD16_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+ }
+ break;
+
+ case Wqual:
+ satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0;
+
+ for (i = 0; i < 2; i++)
+ {
+ switch (BITS (20, 21))
+ {
+ case NoSaturation:
+ s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddS32);
+ satrv [BITIDX32 (i)] = 0;
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ SIMD32_SET (psr, carry, SIMD_CBIT, i);
+ SIMD32_SET (psr, overflow, SIMD_VBIT, i);
+ break;
+
+ case UnsignedSaturation:
+ s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddU32);
+ x = IwmmxtSaturateU32 (s, satrv + BITIDX32 (i));
+ r |= (x & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX32 (i)])
+ {
+ SIMD32_SET (psr, carry, SIMD_CBIT, i);
+ SIMD32_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ case SignedSaturation:
+ s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddS32);
+ x = IwmmxtSaturateS32 (s, satrv + BITIDX32 (i));
+ r |= (x & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX32 (i)])
+ {
+ SIMD32_SET (psr, carry, SIMD_CBIT, i);
+ SIMD32_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_MUP | WCON_CUP);
+
+ SET_wCSSFvec (satrv);
+
+#undef ADDx
+
+ return ARMul_DONE;
+}
+
+static int
+WALIGNI (ARMword instr)
+{
+ int shift = BITS (20, 22) * 8;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "waligni\n");
+#endif
+
+ if (shift)
+ wR [BITS (12, 15)] =
+ wRBITS (BITS (16, 19), shift, 63)
+ | (wRBITS (BITS (0, 3), 0, shift) << ((64 - shift)));
+ else
+ wR [BITS (12, 15)] = wR [BITS (16, 19)];
+
+ wC [wCon] |= WCON_MUP;
+ return ARMul_DONE;
+}
+
+static int
+WALIGNR (ARMul_State * state, ARMword instr)
+{
+ int shift = (wC [BITS (20, 21) + 8] & 0x7) * 8;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "walignr\n");
+#endif
+
+ if (shift)
+ wR [BITS (12, 15)] =
+ wRBITS (BITS (16, 19), shift, 63)
+ | (wRBITS (BITS (0, 3), 0, shift) << ((64 - shift)));
+ else
+ wR [BITS (12, 15)] = wR [BITS (16, 19)];
+
+ wC [wCon] |= WCON_MUP;
+ return ARMul_DONE;
+}
+
+static int
+WAND (ARMword instr)
+{
+ ARMdword result;
+ ARMword psr = 0;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wand\n");
+#endif
+
+ result = wR [BITS (16, 19)] & wR [BITS (0, 3)];
+ wR [BITS (12, 15)] = result;
+
+ SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
+ SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
+
+ wC [wCASF] = psr;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WANDN (ARMword instr)
+{
+ ARMdword result;
+ ARMword psr = 0;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wandn\n");
+#endif
+
+ result = wR [BITS (16, 19)] & ~ wR [BITS (0, 3)];
+ wR [BITS (12, 15)] = result;
+
+ SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
+ SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
+
+ wC [wCASF] = psr;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WAVG2 (ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+ int round = BIT (20) ? 1 : 0;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wavg2\n");
+#endif
+
+#define AVG2x(x, y, m) (((wRBITS (BITS (16, 19), (x), (y)) & (m)) \
+ + (wRBITS (BITS ( 0, 3), (x), (y)) & (m)) \
+ + round) / 2)
+
+ if (BIT (22))
+ {
+ for (i = 0; i < 4; i++)
+ {
+ s = AVG2x ((i * 16), (i * 16) + 15, 0xffff) & 0xffff;
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ r |= s << (i * 16);
+ }
+ }
+ else
+ {
+ for (i = 0; i < 8; i++)
+ {
+ s = AVG2x ((i * 8), (i * 8) + 7, 0xff) & 0xff;
+ SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
+ r |= s << (i * 8);
+ }
+ }
+
+ wR [BITS (12, 15)] = r;
+ wC [wCASF] = psr;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WCMPEQ (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wcmpeq\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 8; i++)
+ {
+ s = wRBYTE (BITS (16, 19), i) == wRBYTE (BITS (0, 3), i) ? 0xff : 0;
+ r |= s << (i * 8);
+ SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Hqual:
+ for (i = 0; i < 4; i++)
+ {
+ s = wRHALF (BITS (16, 19), i) == wRHALF (BITS (0, 3), i) ? 0xffff : 0;
+ r |= s << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ for (i = 0; i < 2; i++)
+ {
+ s = wRWORD (BITS (16, 19), i) == wRWORD (BITS (0, 3), i) ? 0xffffffff : 0;
+ r |= s << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WCMPGT (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wcmpgt\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ if (BIT (21))
+ {
+ /* Use a signed comparison. */
+ for (i = 0; i < 8; i++)
+ {
+ signed char a, b;
+
+ a = wRBYTE (BITS (16, 19), i);
+ b = wRBYTE (BITS (0, 3), i);
+
+ s = (a > b) ? 0xff : 0;
+ r |= s << (i * 8);
+ SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
+ }
+ }
+ else
+ {
+ for (i = 0; i < 8; i++)
+ {
+ s = (wRBYTE (BITS (16, 19), i) > wRBYTE (BITS (0, 3), i))
+ ? 0xff : 0;
+ r |= s << (i * 8);
+ SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
+ }
+ }
+ break;
+
+ case Hqual:
+ if (BIT (21))
+ {
+ for (i = 0; i < 4; i++)
+ {
+ signed int a, b;
+
+ a = wRHALF (BITS (16, 19), i);
+ a = EXTEND16 (a);
+
+ b = wRHALF (BITS (0, 3), i);
+ b = EXTEND16 (b);
+
+ s = (a > b) ? 0xffff : 0;
+ r |= s << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ }
+ else
+ {
+ for (i = 0; i < 4; i++)
+ {
+ s = (wRHALF (BITS (16, 19), i) > wRHALF (BITS (0, 3), i))
+ ? 0xffff : 0;
+ r |= s << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ }
+ break;
+
+ case Wqual:
+ if (BIT (21))
+ {
+ for (i = 0; i < 2; i++)
+ {
+ signed long a, b;
+
+ a = wRWORD (BITS (16, 19), i);
+ b = wRWORD (BITS (0, 3), i);
+
+ s = (a > b) ? 0xffffffff : 0;
+ r |= s << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ }
+ else
+ {
+ for (i = 0; i < 2; i++)
+ {
+ s = (wRWORD (BITS (16, 19), i) > wRWORD (BITS (0, 3), i))
+ ? 0xffffffff : 0;
+ r |= s << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static ARMword
+Compute_Iwmmxt_Address (ARMul_State * state, ARMword instr, int * pFailed)
+{
+ ARMword Rn;
+ ARMword addr;
+ ARMword offset;
+ ARMword multiplier;
+
+ * pFailed = 0;
+ Rn = BITS (16, 19);
+ addr = state->Reg [Rn];
+ offset = BITS (0, 7);
+ multiplier = BIT (8) ? 4 : 1;
+
+ if (BIT (24)) /* P */
+ {
+ /* Pre Indexed Addressing. */
+ if (BIT (23))
+ addr += offset * multiplier;
+ else
+ addr -= offset * multiplier;
+
+ /* Immediate Pre-Indexed. */
+ if (BIT (21)) /* W */
+ {
+ if (Rn == 15)
+ {
+ /* Writeback into R15 is UNPREDICTABLE. */
+#ifdef DEBUG
+ fprintf (stderr, "iWMMXt: writeback into r15\n");
+#endif
+ * pFailed = 1;
+ }
+ else
+ state->Reg [Rn] = addr;
+ }
+ }
+ else
+ {
+ /* Post Indexed Addressing. */
+ if (BIT (21)) /* W */
+ {
+ /* Handle the write back of the final address. */
+ if (Rn == 15)
+ {
+ /* Writeback into R15 is UNPREDICTABLE. */
+#ifdef DEBUG
+ fprintf (stderr, "iWMMXt: writeback into r15\n");
+#endif
+ * pFailed = 1;
+ }
+ else
+ {
+ ARMword increment;
+
+ if (BIT (23))
+ increment = offset * multiplier;
+ else
+ increment = - (offset * multiplier);
+
+ state->Reg [Rn] = addr + increment;
+ }
+ }
+ else
+ {
+ /* P == 0, W == 0, U == 0 is UNPREDICTABLE. */
+ if (BIT (23) == 0)
+ {
+#ifdef DEBUG
+ fprintf (stderr, "iWMMXt: undefined addressing mode\n");
+#endif
+ * pFailed = 1;
+ }
+ }
+ }
+
+ return addr;
+}
+
+static ARMdword
+Iwmmxt_Load_Double_Word (ARMul_State * state, ARMword address)
+{
+ ARMdword value;
+
+ /* The address must be aligned on a 8 byte boundary. */
+ if (address & 0x7)
+ {
+ fprintf (stderr, "iWMMXt: At addr 0x%x: Unaligned double word load from 0x%x\n",
+ (state->Reg[15] - 8) & ~0x3, address);
+#ifdef DEBUG
+#endif
+ /* No need to check for alignment traps. An unaligned
+ double word load with alignment trapping disabled is
+ UNPREDICTABLE. */
+ ARMul_Abort (state, ARMul_DataAbortV);
+ }
+
+ /* Load the words. */
+ if (! state->bigendSig)
+ {
+ value = ARMul_LoadWordN (state, address + 4);
+ value <<= 32;
+ value |= ARMul_LoadWordN (state, address);
+ }
+ else
+ {
+ value = ARMul_LoadWordN (state, address);
+ value <<= 32;
+ value |= ARMul_LoadWordN (state, address + 4);
+ }
+
+ /* Check for data aborts. */
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ ARMul_Icycles (state, 2, 0L);
+
+ return value;
+}
+
+static ARMword
+Iwmmxt_Load_Word (ARMul_State * state, ARMword address)
+{
+ ARMword value;
+
+ /* Check for a misaligned address. */
+ if (address & 3)
+ {
+ if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ address &= ~ 3;
+ }
+
+ value = ARMul_LoadWordN (state, address);
+
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ ARMul_Icycles (state, 1, 0L);
+
+ return value;
+}
+
+static ARMword
+Iwmmxt_Load_Half_Word (ARMul_State * state, ARMword address)
+{
+ ARMword value;
+
+ /* Check for a misaligned address. */
+ if (address & 1)
+ {
+ if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ address &= ~ 1;
+ }
+
+ value = ARMul_LoadHalfWord (state, address);
+
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ ARMul_Icycles (state, 1, 0L);
+
+ return value;
+}
+
+static ARMword
+Iwmmxt_Load_Byte (ARMul_State * state, ARMword address)
+{
+ ARMword value;
+
+ value = ARMul_LoadByte (state, address);
+
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ ARMul_Icycles (state, 1, 0L);
+
+ return value;
+}
+
+static void
+Iwmmxt_Store_Double_Word (ARMul_State * state, ARMword address, ARMdword value)
+{
+ /* The address must be aligned on a 8 byte boundary. */
+ if (address & 0x7)
+ {
+ fprintf (stderr, "iWMMXt: At addr 0x%x: Unaligned double word store to 0x%x\n",
+ (state->Reg[15] - 8) & ~0x3, address);
+#ifdef DEBUG
+#endif
+ /* No need to check for alignment traps. An unaligned
+ double word store with alignment trapping disabled is
+ UNPREDICTABLE. */
+ ARMul_Abort (state, ARMul_DataAbortV);
+ }
+
+ /* Store the words. */
+ if (! state->bigendSig)
+ {
+ ARMul_StoreWordN (state, address, value);
+ ARMul_StoreWordN (state, address + 4, value >> 32);
+ }
+ else
+ {
+ ARMul_StoreWordN (state, address + 4, value);
+ ARMul_StoreWordN (state, address, value >> 32);
+ }
+
+ /* Check for data aborts. */
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ ARMul_Icycles (state, 2, 0L);
+}
+
+static void
+Iwmmxt_Store_Word (ARMul_State * state, ARMword address, ARMword value)
+{
+ /* Check for a misaligned address. */
+ if (address & 3)
+ {
+ if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ address &= ~ 3;
+ }
+
+ ARMul_StoreWordN (state, address, value);
+
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+}
+
+static void
+Iwmmxt_Store_Half_Word (ARMul_State * state, ARMword address, ARMword value)
+{
+ /* Check for a misaligned address. */
+ if (address & 1)
+ {
+ if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
+ ARMul_Abort (state, ARMul_DataAbortV);
+ else
+ address &= ~ 1;
+ }
+
+ ARMul_StoreHalfWord (state, address, value);
+
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+}
+
+static void
+Iwmmxt_Store_Byte (ARMul_State * state, ARMword address, ARMword value)
+{
+ ARMul_StoreByte (state, address, value);
+
+ if (state->Aborted)
+ ARMul_Abort (state, ARMul_DataAbortV);
+}
+
+static int
+WLDR (ARMul_State * state, ARMword instr)
+{
+ ARMword address;
+ int failed;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wldr\n");
+#endif
+
+ address = Compute_Iwmmxt_Address (state, instr, & failed);
+ if (failed)
+ return ARMul_CANT;
+
+ if (BITS (28, 31) == 0xf)
+ {
+ /* WLDRW wCx */
+ wC [BITS (12, 15)] = Iwmmxt_Load_Word (state, address);
+ }
+ else if (BIT (8) == 0)
+ {
+ if (BIT (22) == 0)
+ /* WLDRB */
+ wR [BITS (12, 15)] = Iwmmxt_Load_Byte (state, address);
+ else
+ /* WLDRH */
+ wR [BITS (12, 15)] = Iwmmxt_Load_Half_Word (state, address);
+ }
+ else
+ {
+ if (BIT (22) == 0)
+ /* WLDRW wRd */
+ wR [BITS (12, 15)] = Iwmmxt_Load_Word (state, address);
+ else
+ /* WLDRD */
+ wR [BITS (12, 15)] = Iwmmxt_Load_Double_Word (state, address);
+ }
+
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+WMAC (ARMword instr)
+{
+ int i;
+ ARMdword t = 0;
+ ARMword a, b;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wmac\n");
+#endif
+
+ for (i = 0; i < 4; i++)
+ {
+ if (BIT (21))
+ {
+ /* Signed. */
+ signed long s;
+
+ a = wRHALF (BITS (16, 19), i);
+ a = EXTEND16 (a);
+
+ b = wRHALF (BITS (0, 3), i);
+ b = EXTEND16 (b);
+
+ s = (signed long) a * (signed long) b;
+
+ (signed long long) t += s;
+ }
+ else
+ {
+ /* Unsigned. */
+ a = wRHALF (BITS (16, 19), i);
+ b = wRHALF (BITS ( 0, 3), i);
+
+ t += a * b;
+ }
+ }
+
+ if (BIT (20))
+ wR [BITS (12, 15)] = 0;
+
+ if (BIT (21)) /* Signed. */
+ (signed long long) wR[BITS (12, 15)] += (signed long long) t;
+ else
+ wR [BITS (12, 15)] += t;
+
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+WMADD (ARMword instr)
+{
+ ARMdword r = 0;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wmadd\n");
+#endif
+
+ for (i = 0; i < 2; i++)
+ {
+ ARMdword s1, s2;
+
+ if (BIT (21)) /* Signed. */
+ {
+ signed long a, b;
+
+ a = wRHALF (BITS (16, 19), i * 2);
+ a = EXTEND16 (a);
+
+ b = wRHALF (BITS (0, 3), i * 2);
+ b = EXTEND16 (b);
+
+ (signed long) s1 = a * b;
+
+ a = wRHALF (BITS (16, 19), i * 2 + 1);
+ a = EXTEND16 (a);
+
+ b = wRHALF (BITS (0, 3), i * 2 + 1);
+ b = EXTEND16 (b);
+
+ (signed long) s2 = a * b;
+ }
+ else /* Unsigned. */
+ {
+ unsigned long a, b;
+
+ a = wRHALF (BITS (16, 19), i * 2);
+ b = wRHALF (BITS ( 0, 3), i * 2);
+
+ (unsigned long) s1 = a * b;
+
+ a = wRHALF (BITS (16, 19), i * 2 + 1);
+ b = wRHALF (BITS ( 0, 3), i * 2 + 1);
+
+ (signed long) s2 = a * b;
+ }
+
+ r |= (ARMdword) ((s1 + s2) & 0xffffffff) << (i ? 32 : 0);
+ }
+
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+WMAX (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wmax\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 8; i++)
+ if (BIT (21)) /* Signed. */
+ {
+ int a, b;
+
+ a = wRBYTE (BITS (16, 19), i);
+ a = EXTEND8 (a);
+
+ b = wRBYTE (BITS (0, 3), i);
+ b = EXTEND8 (b);
+
+ if (a > b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xff) << (i * 8);
+ }
+ else /* Unsigned. */
+ {
+ unsigned int a, b;
+
+ a = wRBYTE (BITS (16, 19), i);
+ b = wRBYTE (BITS (0, 3), i);
+
+ if (a > b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xff) << (i * 8);
+ }
+ break;
+
+ case Hqual:
+ for (i = 0; i < 4; i++)
+ if (BIT (21)) /* Signed. */
+ {
+ int a, b;
+
+ a = wRHALF (BITS (16, 19), i);
+ a = EXTEND16 (a);
+
+ b = wRHALF (BITS (0, 3), i);
+ b = EXTEND16 (b);
+
+ if (a > b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffff) << (i * 16);
+ }
+ else /* Unsigned. */
+ {
+ unsigned int a, b;
+
+ a = wRHALF (BITS (16, 19), i);
+ b = wRHALF (BITS (0, 3), i);
+
+ if (a > b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffff) << (i * 16);
+ }
+ break;
+
+ case Wqual:
+ for (i = 0; i < 2; i++)
+ if (BIT (21)) /* Signed. */
+ {
+ int a, b;
+
+ a = wRWORD (BITS (16, 19), i);
+ b = wRWORD (BITS (0, 3), i);
+
+ if (a > b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffffffff) << (i * 32);
+ }
+ else
+ {
+ unsigned int a, b;
+
+ a = wRWORD (BITS (16, 19), i);
+ b = wRWORD (BITS (0, 3), i);
+
+ if (a > b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffffffff) << (i * 32);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+WMIN (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wmin\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 8; i++)
+ if (BIT (21)) /* Signed. */
+ {
+ int a, b;
+
+ a = wRBYTE (BITS (16, 19), i);
+ a = EXTEND8 (a);
+
+ b = wRBYTE (BITS (0, 3), i);
+ b = EXTEND8 (b);
+
+ if (a < b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xff) << (i * 8);
+ }
+ else /* Unsigned. */
+ {
+ unsigned int a, b;
+
+ a = wRBYTE (BITS (16, 19), i);
+ b = wRBYTE (BITS (0, 3), i);
+
+ if (a < b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xff) << (i * 8);
+ }
+ break;
+
+ case Hqual:
+ for (i = 0; i < 4; i++)
+ if (BIT (21)) /* Signed. */
+ {
+ int a, b;
+
+ a = wRHALF (BITS (16, 19), i);
+ a = EXTEND16 (a);
+
+ b = wRHALF (BITS (0, 3), i);
+ b = EXTEND16 (b);
+
+ if (a < b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffff) << (i * 16);
+ }
+ else
+ {
+ /* Unsigned. */
+ unsigned int a, b;
+
+ a = wRHALF (BITS (16, 19), i);
+ b = wRHALF (BITS ( 0, 3), i);
+
+ if (a < b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffff) << (i * 16);
+ }
+ break;
+
+ case Wqual:
+ for (i = 0; i < 2; i++)
+ if (BIT (21)) /* Signed. */
+ {
+ int a, b;
+
+ a = wRWORD (BITS (16, 19), i);
+ b = wRWORD (BITS ( 0, 3), i);
+
+ if (a < b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffffffff) << (i * 32);
+ }
+ else
+ {
+ unsigned int a, b;
+
+ a = wRWORD (BITS (16, 19), i);
+ b = wRWORD (BITS (0, 3), i);
+
+ if (a < b)
+ s = a;
+ else
+ s = b;
+
+ r |= (s & 0xffffffff) << (i * 32);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+WMUL (ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wmul\n");
+#endif
+
+ for (i = 0; i < 4; i++)
+ if (BIT (21)) /* Signed. */
+ {
+ long a, b;
+
+ a = wRHALF (BITS (16, 19), i);
+ a = EXTEND16 (a);
+
+ b = wRHALF (BITS (0, 3), i);
+ b = EXTEND16 (b);
+
+ s = a * b;
+
+ if (BIT (20))
+ r |= ((s >> 16) & 0xffff) << (i * 16);
+ else
+ r |= (s & 0xffff) << (i * 16);
+ }
+ else /* Unsigned. */
+ {
+ unsigned long a, b;
+
+ a = wRHALF (BITS (16, 19), i);
+ b = wRHALF (BITS (0, 3), i);
+
+ s = a * b;
+
+ if (BIT (20))
+ r |= ((s >> 16) & 0xffff) << (i * 16);
+ else
+ r |= (s & 0xffff) << (i * 16);
+ }
+
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+WOR (ARMword instr)
+{
+ ARMword psr = 0;
+ ARMdword result;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wor\n");
+#endif
+
+ result = wR [BITS (16, 19)] | wR [BITS (0, 3)];
+ wR [BITS (12, 15)] = result;
+
+ SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
+ SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
+
+ wC [wCASF] = psr;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WPACK (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword x;
+ ARMdword s;
+ int i;
+ int satrv[8];
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wpack\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Hqual:
+ for (i = 0; i < 8; i++)
+ {
+ x = wRHALF (i < 4 ? BITS (16, 19) : BITS (0, 3), i & 3);
+
+ switch (BITS (20, 21))
+ {
+ case UnsignedSaturation:
+ s = IwmmxtSaturateU8 (x, satrv + BITIDX8 (i));
+ break;
+
+ case SignedSaturation:
+ s = IwmmxtSaturateS8 (x, satrv + BITIDX8 (i));
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ r |= (s & 0xff) << (i * 8);
+ SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0;
+
+ for (i = 0; i < 4; i++)
+ {
+ x = wRWORD (i < 2 ? BITS (16, 19) : BITS (0, 3), i & 1);
+
+ switch (BITS (20, 21))
+ {
+ case UnsignedSaturation:
+ s = IwmmxtSaturateU16 (x, satrv + BITIDX16 (i));
+ break;
+
+ case SignedSaturation:
+ s = IwmmxtSaturateS16 (x, satrv + BITIDX16 (i));
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Dqual:
+ satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0;
+
+ for (i = 0; i < 2; i++)
+ {
+ x = wR [i ? BITS (0, 3) : BITS (16, 19)];
+
+ switch (BITS (20, 21))
+ {
+ case UnsignedSaturation:
+ s = IwmmxtSaturateU32 (x, satrv + BITIDX32 (i));
+ break;
+
+ case SignedSaturation:
+ s = IwmmxtSaturateS32 (x, satrv + BITIDX32 (i));
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ SET_wCSSFvec (satrv);
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WROR (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword s;
+ ARMword psr = 0;
+ int i;
+ int shift;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wror\n");
+#endif
+
+ DECODE_G_BIT (state, instr, shift);
+
+ switch (BITS (22, 23))
+ {
+ case Hqual:
+ shift &= 0xf;
+ for (i = 0; i < 4; i++)
+ {
+ s = ((wRHALF (BITS (16, 19), i) & 0xffff) << (16 - shift))
+ | ((wRHALF (BITS (16, 19), i) & 0xffff) >> shift);
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ shift &= 0x1f;
+ for (i = 0; i < 2; i++)
+ {
+ s = ((wRWORD (BITS (16, 19), i) & 0xffffffff) << (32 - shift))
+ | ((wRWORD (BITS (16, 19), i) & 0xffffffff) >> shift);
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Dqual:
+ shift &= 0x3f;
+ r = (wR [BITS (16, 19)] >> shift)
+ | (wR [BITS (16, 19)] << (64 - shift));
+
+ SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
+ SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WSAD (ARMword instr)
+{
+ ARMdword r;
+ int s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wsad\n");
+#endif
+
+ /* Z bit. */
+ r = BIT (20) ? 0 : (wR [BITS (12, 15)] & 0xffffffff);
+
+ if (BIT (22))
+ /* Half. */
+ for (i = 0; i < 4; i++)
+ {
+ s = (wRHALF (BITS (16, 19), i) - wRHALF (BITS (0, 3), i));
+ r += abs (s);
+ }
+ else
+ /* Byte. */
+ for (i = 0; i < 8; i++)
+ {
+ s = (wRBYTE (BITS (16, 19), i) - wRBYTE (BITS (0, 3), i));
+ r += abs (s);
+ }
+
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= WCON_MUP;
+
+ return ARMul_DONE;
+}
+
+static int
+WSHUFH (ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+ int imm8;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wshufh\n");
+#endif
+
+ imm8 = (BITS (20, 23) << 4) | BITS (0, 3);
+
+ for (i = 0; i < 4; i++)
+ {
+ s = wRHALF (BITS (16, 19), ((imm8 >> (i * 2) & 3)) & 0xff);
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WSLL (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword s;
+ ARMword psr = 0;
+ int i;
+ unsigned shift;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wsll\n");
+#endif
+
+ DECODE_G_BIT (state, instr, shift);
+
+ switch (BITS (22, 23))
+ {
+ case Hqual:
+ for (i = 0; i < 4; i++)
+ {
+ if (shift > 15)
+ s = 0;
+ else
+ s = ((wRHALF (BITS (16, 19), i) & 0xffff) << shift);
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ for (i = 0; i < 2; i++)
+ {
+ if (shift > 31)
+ s = 0;
+ else
+ s = ((wRWORD (BITS (16, 19), i) & 0xffffffff) << shift);
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Dqual:
+ if (shift > 63)
+ r = 0;
+ else
+ r = ((wR[BITS (16, 19)] & 0xffffffffffffffff) << shift);
+
+ SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
+ SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WSRA (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword s;
+ ARMword psr = 0;
+ int i;
+ unsigned shift;
+ signed long t;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wsra\n");
+#endif
+
+ DECODE_G_BIT (state, instr, shift);
+
+ switch (BITS (22, 23))
+ {
+ case Hqual:
+ for (i = 0; i < 4; i++)
+ {
+ if (shift > 15)
+ t = (wRHALF (BITS (16, 19), i) & 0x8000) ? 0xffff : 0;
+ else
+ {
+ t = wRHALF (BITS (16, 19), i);
+ t = EXTEND16 (t);
+ t >>= shift;
+ }
+
+ s = t;
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ for (i = 0; i < 2; i++)
+ {
+ if (shift > 31)
+ t = (wRWORD (BITS (16, 19), i) & 0x80000000) ? 0xffffffff : 0;
+ else
+ {
+ t = wRWORD (BITS (16, 19), i);
+ t >>= shift;
+ }
+ s = t;
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Dqual:
+ if (shift > 63)
+ r = (wR [BITS (16, 19)] & 0x8000000000000000) ? 0xffffffffffffffff : 0;
+ else
+ r = ((signed long long) (wR[BITS (16, 19)] & 0xffffffffffffffff) >> shift);
+ SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
+ SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WSRL (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMdword s;
+ ARMword psr = 0;
+ int i;
+ unsigned int shift;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wsrl\n");
+#endif
+
+ DECODE_G_BIT (state, instr, shift);
+
+ switch (BITS (22, 23))
+ {
+ case Hqual:
+ for (i = 0; i < 4; i++)
+ {
+ if (shift > 15)
+ s = 0;
+ else
+ s = ((unsigned) (wRHALF (BITS (16, 19), i) & 0xffff) >> shift);
+
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ for (i = 0; i < 2; i++)
+ {
+ if (shift > 31)
+ s = 0;
+ else
+ s = ((unsigned long) (wRWORD (BITS (16, 19), i) & 0xffffffff) >> shift);
+
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Dqual:
+ if (shift > 63)
+ r = 0;
+ else
+ r = (wR [BITS (16, 19)] & 0xffffffffffffffff) >> shift;
+
+ SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
+ SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WSTR (ARMul_State * state, ARMword instr)
+{
+ ARMword address;
+ int failed;
+
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wstr\n");
+#endif
+
+ address = Compute_Iwmmxt_Address (state, instr, & failed);
+ if (failed)
+ return ARMul_CANT;
+
+ if (BITS (28, 31) == 0xf)
+ {
+ /* WSTRW wCx */
+ Iwmmxt_Store_Word (state, address, wC [BITS (12, 15)]);
+ }
+ else if (BIT (8) == 0)
+ {
+ if (BIT (22) == 0)
+ /* WSTRB */
+ Iwmmxt_Store_Byte (state, address, wR [BITS (12, 15)]);
+ else
+ /* WSTRH */
+ Iwmmxt_Store_Half_Word (state, address, wR [BITS (12, 15)]);
+ }
+ else
+ {
+ if (BIT (22) == 0)
+ /* WSTRW wRd */
+ Iwmmxt_Store_Word (state, address, wR [BITS (12, 15)]);
+ else
+ /* WSTRD */
+ Iwmmxt_Store_Double_Word (state, address, wR [BITS (12, 15)]);
+ }
+
+ return ARMul_DONE;
+}
+
+static int
+WSUB (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword x;
+ ARMdword s;
+ int i;
+ int carry;
+ int overflow;
+ int satrv[8];
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wsub\n");
+#endif
+
+/* Subtract two numbers using the specified function,
+ leaving setting the carry bit as required. */
+#define SUBx(x, y, m, f) \
+ (*f) (wRBITS (BITS (16, 19), (x), (y)) & (m), \
+ wRBITS (BITS ( 0, 3), (x), (y)) & (m), & carry, & overflow)
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 8; i++)
+ {
+ switch (BITS (20, 21))
+ {
+ case NoSaturation:
+ s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubS8);
+ satrv [BITIDX8 (i)] = 0;
+ r |= (s & 0xff) << (i * 8);
+ SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
+ SIMD8_SET (psr, carry, SIMD_CBIT, i);
+ SIMD8_SET (psr, overflow, SIMD_VBIT, i);
+ break;
+
+ case UnsignedSaturation:
+ s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubU8);
+ x = IwmmxtSaturateU8 (s, satrv + BITIDX8 (i));
+ r |= (x & 0xff) << (i * 8);
+ SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX8 (i)])
+ {
+ SIMD8_SET (psr, carry, SIMD_CBIT, i);
+ SIMD8_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ case SignedSaturation:
+ s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubS8);
+ x = IwmmxtSaturateS8 (s, satrv + BITIDX8 (i));
+ r |= (x & 0xff) << (i * 8);
+ SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
+ SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX8 (i)])
+ {
+ SIMD8_SET (psr, carry, SIMD_CBIT, i);
+ SIMD8_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+ }
+ break;
+
+ case Hqual:
+ satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0;
+
+ for (i = 0; i < 4; i++)
+ {
+ switch (BITS (20, 21))
+ {
+ case NoSaturation:
+ s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubU16);
+ satrv [BITIDX16 (i)] = 0;
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ SIMD16_SET (psr, carry, SIMD_CBIT, i);
+ SIMD16_SET (psr, overflow, SIMD_VBIT, i);
+ break;
+
+ case UnsignedSaturation:
+ s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubU16);
+ x = IwmmxtSaturateU16 (s, satrv + BITIDX16 (i));
+ r |= (x & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (x & 0xffff), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX16 (i)])
+ {
+ SIMD16_SET (psr, carry, SIMD_CBIT, i);
+ SIMD16_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ case SignedSaturation:
+ s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubS16);
+ x = IwmmxtSaturateS16 (s, satrv + BITIDX16 (i));
+ r |= (x & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX16 (i)])
+ {
+ SIMD16_SET (psr, carry, SIMD_CBIT, i);
+ SIMD16_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+ }
+ break;
+
+ case Wqual:
+ satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0;
+
+ for (i = 0; i < 2; i++)
+ {
+ switch (BITS (20, 21))
+ {
+ case NoSaturation:
+ s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubU32);
+ satrv[BITIDX32 (i)] = 0;
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ SIMD32_SET (psr, carry, SIMD_CBIT, i);
+ SIMD32_SET (psr, overflow, SIMD_VBIT, i);
+ break;
+
+ case UnsignedSaturation:
+ s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubU32);
+ x = IwmmxtSaturateU32 (s, satrv + BITIDX32 (i));
+ r |= (x & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX32 (i)])
+ {
+ SIMD32_SET (psr, carry, SIMD_CBIT, i);
+ SIMD32_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ case SignedSaturation:
+ s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubS32);
+ x = IwmmxtSaturateS32 (s, satrv + BITIDX32 (i));
+ r |= (x & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
+ if (! satrv [BITIDX32 (i)])
+ {
+ SIMD32_SET (psr, carry, SIMD_CBIT, i);
+ SIMD32_SET (psr, overflow, SIMD_VBIT, i);
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+ }
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wR [BITS (12, 15)] = r;
+ wC [wCASF] = psr;
+ SET_wCSSFvec (satrv);
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+#undef SUBx
+
+ return ARMul_DONE;
+}
+
+static int
+WUNPCKEH (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wunpckeh\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 4; i++)
+ {
+ s = wRBYTE (BITS (16, 19), i + 4);
+
+ if (BIT (21) && NBIT8 (s))
+ s |= 0xff00;
+
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Hqual:
+ for (i = 0; i < 2; i++)
+ {
+ s = wRHALF (BITS (16, 19), i + 2);
+
+ if (BIT (21) && NBIT16 (s))
+ s |= 0xffff0000;
+
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ r = wRWORD (BITS (16, 19), 1);
+
+ if (BIT (21) && NBIT32 (r))
+ r |= 0xffffffff00000000;
+
+ SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
+ SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WUNPCKEL (ARMul_State * state, ARMword instr)
+{
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wunpckel\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 4; i++)
+ {
+ s = wRBYTE (BITS (16, 19), i);
+
+ if (BIT (21) && NBIT8 (s))
+ s |= 0xff00;
+
+ r |= (s & 0xffff) << (i * 16);
+ SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
+ SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Hqual:
+ for (i = 0; i < 2; i++)
+ {
+ s = wRHALF (BITS (16, 19), i);
+
+ if (BIT (21) && NBIT16 (s))
+ s |= 0xffff0000;
+
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
+ }
+ break;
+
+ case Wqual:
+ r = wRWORD (BITS (16, 19), 0);
+
+ if (BIT (21) && NBIT32 (r))
+ r |= 0xffffffff00000000;
+
+ SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
+ SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WUNPCKIH (ARMul_State * state, ARMword instr)
+{
+ ARMword a, b;
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wunpckih\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 4; i++)
+ {
+ a = wRBYTE (BITS (16, 19), i + 4);
+ b = wRBYTE (BITS ( 0, 3), i + 4);
+ s = a | (b << 8);
+ r |= (s & 0xffff) << (i * 16);
+ SIMD8_SET (psr, NBIT8 (a), SIMD_NBIT, i * 2);
+ SIMD8_SET (psr, ZBIT8 (a), SIMD_ZBIT, i * 2);
+ SIMD8_SET (psr, NBIT8 (b), SIMD_NBIT, (i * 2) + 1);
+ SIMD8_SET (psr, ZBIT8 (b), SIMD_ZBIT, (i * 2) + 1);
+ }
+ break;
+
+ case Hqual:
+ for (i = 0; i < 2; i++)
+ {
+ a = wRHALF (BITS (16, 19), i + 2);
+ b = wRHALF (BITS ( 0, 3), i + 2);
+ s = a | (b << 16);
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD16_SET (psr, NBIT16 (a), SIMD_NBIT, (i * 2));
+ SIMD16_SET (psr, ZBIT16 (a), SIMD_ZBIT, (i * 2));
+ SIMD16_SET (psr, NBIT16 (b), SIMD_NBIT, (i * 2) + 1);
+ SIMD16_SET (psr, ZBIT16 (b), SIMD_ZBIT, (i * 2) + 1);
+ }
+ break;
+
+ case Wqual:
+ a = wRWORD (BITS (16, 19), 1);
+ s = wRWORD (BITS ( 0, 3), 1);
+ r = a | (s << 32);
+
+ SIMD32_SET (psr, NBIT32 (a), SIMD_NBIT, 0);
+ SIMD32_SET (psr, ZBIT32 (a), SIMD_ZBIT, 0);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, 1);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, 1);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WUNPCKIL (ARMul_State * state, ARMword instr)
+{
+ ARMword a, b;
+ ARMdword r = 0;
+ ARMword psr = 0;
+ ARMdword s;
+ int i;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wunpckil\n");
+#endif
+
+ switch (BITS (22, 23))
+ {
+ case Bqual:
+ for (i = 0; i < 4; i++)
+ {
+ a = wRBYTE (BITS (16, 19), i);
+ b = wRBYTE (BITS ( 0, 3), i);
+ s = a | (b << 8);
+ r |= (s & 0xffff) << (i * 16);
+ SIMD8_SET (psr, NBIT8 (a), SIMD_NBIT, i * 2);
+ SIMD8_SET (psr, ZBIT8 (a), SIMD_ZBIT, i * 2);
+ SIMD8_SET (psr, NBIT8 (b), SIMD_NBIT, (i * 2) + 1);
+ SIMD8_SET (psr, ZBIT8 (b), SIMD_ZBIT, (i * 2) + 1);
+ }
+ break;
+
+ case Hqual:
+ for (i = 0; i < 2; i++)
+ {
+ a = wRHALF (BITS (16, 19), i);
+ b = wRHALF (BITS ( 0, 3), i);
+ s = a | (b << 16);
+ r |= (s & 0xffffffff) << (i * 32);
+ SIMD16_SET (psr, NBIT16 (a), SIMD_NBIT, (i * 2));
+ SIMD16_SET (psr, ZBIT16 (a), SIMD_ZBIT, (i * 2));
+ SIMD16_SET (psr, NBIT16 (b), SIMD_NBIT, (i * 2) + 1);
+ SIMD16_SET (psr, ZBIT16 (b), SIMD_ZBIT, (i * 2) + 1);
+ }
+ break;
+
+ case Wqual:
+ a = wRWORD (BITS (16, 19), 0);
+ s = wRWORD (BITS ( 0, 3), 0);
+ r = a | (s << 32);
+
+ SIMD32_SET (psr, NBIT32 (a), SIMD_NBIT, 0);
+ SIMD32_SET (psr, ZBIT32 (a), SIMD_ZBIT, 0);
+ SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, 1);
+ SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, 1);
+ break;
+
+ default:
+ ARMul_UndefInstr (state, instr);
+ return ARMul_DONE;
+ }
+
+ wC [wCASF] = psr;
+ wR [BITS (12, 15)] = r;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+static int
+WXOR (ARMword instr)
+{
+ ARMword psr = 0;
+ ARMdword result;
+
+ if ((read_cp15_reg (15, 0, 1) & 3) != 3)
+ return ARMul_CANT;
+
+#ifdef DEBUG
+ fprintf (stderr, "wxor\n");
+#endif
+
+ result = wR [BITS (16, 19)] ^ wR [BITS (0, 3)];
+ wR [BITS (12, 15)] = result;
+
+ SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
+ SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
+
+ wC [wCASF] = psr;
+ wC [wCon] |= (WCON_CUP | WCON_MUP);
+
+ return ARMul_DONE;
+}
+
+/* This switch table is moved to a seperate function in order
+ to work around a compiler bug in the host compiler... */
+
+static int
+Process_Instruction (ARMul_State * state, ARMword instr)
+{
+ int status = ARMul_BUSY;
+
+ switch ((BITS (20, 23) << 8) | BITS (4, 11))
+ {
+ case 0x000: status = WOR (instr); break;
+ case 0x011: status = TMCR (state, instr); break;
+ case 0x100: status = WXOR (instr); break;
+ case 0x111: status = TMRC (state, instr); break;
+ case 0x300: status = WANDN (instr); break;
+ case 0x200: status = WAND (instr); break;
+
+ case 0x810: case 0xa10:
+ status = WMADD (instr); break;
+
+ case 0x10e: case 0x50e: case 0x90e: case 0xd0e:
+ status = WUNPCKIL (state, instr); break;
+ case 0x10c: case 0x50c: case 0x90c: case 0xd0c:
+ status = WUNPCKIH (state, instr); break;
+ case 0x012: case 0x112: case 0x412: case 0x512:
+ status = WSAD (instr); break;
+ case 0x010: case 0x110: case 0x210: case 0x310:
+ status = WMUL (instr); break;
+ case 0x410: case 0x510: case 0x610: case 0x710:
+ status = WMAC (instr); break;
+ case 0x006: case 0x406: case 0x806: case 0xc06:
+ status = WCMPEQ (state, instr); break;
+ case 0x800: case 0x900: case 0xc00: case 0xd00:
+ status = WAVG2 (instr); break;
+ case 0x802: case 0x902: case 0xa02: case 0xb02:
+ status = WALIGNR (state, instr); break;
+ case 0x601: case 0x605: case 0x609: case 0x60d:
+ status = TINSR (state, instr); break;
+ case 0x107: case 0x507: case 0x907: case 0xd07:
+ status = TEXTRM (state, instr); break;
+ case 0x117: case 0x517: case 0x917: case 0xd17:
+ status = TEXTRC (state, instr); break;
+ case 0x401: case 0x405: case 0x409: case 0x40d:
+ status = TBCST (state, instr); break;
+ case 0x113: case 0x513: case 0x913: case 0xd13:
+ status = TANDC (state, instr); break;
+ case 0x01c: case 0x41c: case 0x81c: case 0xc1c:
+ status = WACC (state, instr); break;
+ case 0x115: case 0x515: case 0x915: case 0xd15:
+ status = TORC (state, instr); break;
+ case 0x103: case 0x503: case 0x903: case 0xd03:
+ status = TMOVMSK (state, instr); break;
+ case 0x106: case 0x306: case 0x506: case 0x706:
+ case 0x906: case 0xb06: case 0xd06: case 0xf06:
+ status = WCMPGT (state, instr); break;
+ case 0x00e: case 0x20e: case 0x40e: case 0x60e:
+ case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e:
+ status = WUNPCKEL (state, instr); break;
+ case 0x00c: case 0x20c: case 0x40c: case 0x60c:
+ case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c:
+ status = WUNPCKEH (state, instr); break;
+ case 0x204: case 0x604: case 0xa04: case 0xe04:
+ case 0x214: case 0x614: case 0xa14: case 0xe14:
+ status = WSRL (state, instr); break;
+ case 0x004: case 0x404: case 0x804: case 0xc04:
+ case 0x014: case 0x414: case 0x814: case 0xc14:
+ status = WSRA (state, instr); break;
+ case 0x104: case 0x504: case 0x904: case 0xd04:
+ case 0x114: case 0x514: case 0x914: case 0xd14:
+ status = WSLL (state, instr); break;
+ case 0x304: case 0x704: case 0xb04: case 0xf04:
+ case 0x314: case 0x714: case 0xb14: case 0xf14:
+ status = WROR (state, instr); break;
+ case 0x116: case 0x316: case 0x516: case 0x716:
+ case 0x916: case 0xb16: case 0xd16: case 0xf16:
+ status = WMIN (state, instr); break;
+ case 0x016: case 0x216: case 0x416: case 0x616:
+ case 0x816: case 0xa16: case 0xc16: case 0xe16:
+ status = WMAX (state, instr); break;
+ case 0x002: case 0x102: case 0x202: case 0x302:
+ case 0x402: case 0x502: case 0x602: case 0x702:
+ status = WALIGNI (instr); break;
+ case 0x01a: case 0x11a: case 0x21a: case 0x31a:
+ case 0x41a: case 0x51a: case 0x61a: case 0x71a:
+ case 0x81a: case 0x91a: case 0xa1a: case 0xb1a:
+ case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a:
+ status = WSUB (state, instr); break;
+ case 0x01e: case 0x11e: case 0x21e: case 0x31e:
+ case 0x41e: case 0x51e: case 0x61e: case 0x71e:
+ case 0x81e: case 0x91e: case 0xa1e: case 0xb1e:
+ case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e:
+ status = WSHUFH (instr); break;
+ case 0x018: case 0x118: case 0x218: case 0x318:
+ case 0x418: case 0x518: case 0x618: case 0x718:
+ case 0x818: case 0x918: case 0xa18: case 0xb18:
+ case 0xc18: case 0xd18: case 0xe18: case 0xf18:
+ status = WADD (state, instr); break;
+ case 0x008: case 0x108: case 0x208: case 0x308:
+ case 0x408: case 0x508: case 0x608: case 0x708:
+ case 0x808: case 0x908: case 0xa08: case 0xb08:
+ case 0xc08: case 0xd08: case 0xe08: case 0xf08:
+ status = WPACK (state, instr); break;
+ case 0x201: case 0x203: case 0x205: case 0x207:
+ case 0x209: case 0x20b: case 0x20d: case 0x20f:
+ case 0x211: case 0x213: case 0x215: case 0x217:
+ case 0x219: case 0x21b: case 0x21d: case 0x21f:
+ switch (BITS (16, 19))
+ {
+ case 0x0: status = TMIA (state, instr); break;
+ case 0x8: status = TMIAPH (state, instr); break;
+ case 0xc:
+ case 0xd:
+ case 0xe:
+ case 0xf: status = TMIAxy (state, instr); break;
+ default: break;
+ }
+ break;
+ default:
+ break;
+ }
+ return status;
+}
+
+/* Process a possibly Intel(r) Wireless MMX(tm) technology instruction.
+ Return true if the instruction was handled. */
+
+int
+ARMul_HandleIwmmxt (ARMul_State * state, ARMword instr)
+{
+ int status = ARMul_BUSY;
+
+ if (BITS (24, 27) == 0xe)
+ {
+ status = Process_Instruction (state, instr);
+ }
+ else if (BITS (25, 27) == 0x6)
+ {
+ if (BITS (4, 11) == 0x0 && BITS (20, 24) == 0x4)
+ status = TMCRR (state, instr);
+ else if (BITS (9, 11) == 0x0)
+ {
+ if (BIT (20) == 0x0)
+ status = WSTR (state, instr);
+ else if (BITS (20, 24) == 0x5)
+ status = TMRRC (state, instr);
+ else
+ status = WLDR (state, instr);
+ }
+ }
+
+ if (status == ARMul_CANT)
+ {
+ /* If the instruction was a recognised but illegal,
+ perform the abort here rather than returning false.
+ If we return false then ARMul_MRC may be called which
+ will still abort, but which also perform the register
+ transfer... */
+ ARMul_Abort (state, ARMul_UndefinedInstrV);
+ status = ARMul_DONE;
+ }
+
+ return status == ARMul_DONE;
+}
+
+int
+Fetch_Iwmmxt_Register (unsigned int regnum, unsigned char * memory)
+{
+ if (regnum >= 16)
+ {
+ memcpy (memory, wC + (regnum - 16), sizeof wC [0]);
+ return sizeof wC [0];
+ }
+ else
+ {
+ memcpy (memory, wR + regnum, sizeof wR [0]);
+ return sizeof wR [0];
+ }
+}
+
+int
+Store_Iwmmxt_Register (unsigned int regnum, unsigned char * memory)
+{
+ if (regnum >= 16)
+ {
+ memcpy (wC + (regnum - 16), memory, sizeof wC [0]);
+ return sizeof wC [0];
+ }
+ else
+ {
+ memcpy (wR + regnum, memory, sizeof wR [0]);
+ return sizeof wR [0];
+ }
+}
generated by cgit v1.1 at 2024-11-27 15:30:38 +0000