/*
* ARM translation
- *
+ *
* Copyright (c) 2003 Fabrice Bellard
* Copyright (c) 2005 CodeSourcery, LLC
+ * Copyright (c) 2007 OpenedHand, Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#include "exec-all.h"
#include "disas.h"
+#define ENABLE_ARCH_5J 0
+#define ENABLE_ARCH_6 1
+#define ENABLE_ARCH_6T2 1
+
+#define ARCH(x) if (!ENABLE_ARCH_##x) goto illegal_op;
+
/* internal defines */
typedef struct DisasContext {
target_ulong pc;
int is_jmp;
+ /* Nonzero if this instruction has been conditionally skipped. */
+ int condjmp;
+ /* The label that will be jumped to when the instruction is skipped. */
+ int condlabel;
struct TranslationBlock *tb;
int singlestep_enabled;
+ int thumb;
+ int is_mem;
+#if !defined(CONFIG_USER_ONLY)
+ int user;
+#endif
} DisasContext;
+#if defined(CONFIG_USER_ONLY)
+#define IS_USER(s) 1
+#else
+#define IS_USER(s) (s->user)
+#endif
+
#define DISAS_JUMP_NEXT 4
+#ifdef USE_DIRECT_JUMP
+#define TBPARAM(x)
+#else
+#define TBPARAM(x) (long)(x)
+#endif
+
/* XXX: move that elsewhere */
static uint16_t *gen_opc_ptr;
static uint32_t *gen_opparam_ptr;
#include "gen-op.h"
-static GenOpFunc2 *gen_test_cc[14] = {
+static GenOpFunc1 *gen_test_cc[14] = {
gen_op_test_eq,
gen_op_test_ne,
gen_op_test_cs,
1, /* bic */
1, /* mvn */
};
-
+
static GenOpFunc1 *gen_shift_T1_im[4] = {
gen_op_shll_T1_im,
gen_op_shrl_T1_im,
gen_op_bx_T0();
}
+
+#if defined(CONFIG_USER_ONLY)
+#define gen_ldst(name, s) gen_op_##name##_raw()
+#else
+#define gen_ldst(name, s) do { \
+ s->is_mem = 1; \
+ if (IS_USER(s)) \
+ gen_op_##name##_user(); \
+ else \
+ gen_op_##name##_kernel(); \
+ } while (0)
+#endif
+
static inline void gen_movl_TN_reg(DisasContext *s, int reg, int t)
{
int val;
if (reg == 15) {
- /* normaly, since we updated PC, we need only to add 4 */
- val = (long)s->pc + 4;
+ /* normaly, since we updated PC, we need only to add one insn */
+ if (s->thumb)
+ val = (long)s->pc + 2;
+ else
+ val = (long)s->pc + 4;
gen_op_movl_TN_im[t](val);
} else {
gen_op_movl_TN_reg[t][reg]();
gen_movl_reg_TN(s, reg, 1);
}
+/* Force a TB lookup after an instruction that changes the CPU state. */
+static inline void gen_lookup_tb(DisasContext *s)
+{
+ gen_op_movl_T0_im(s->pc);
+ gen_movl_reg_T0(s, 15);
+ s->is_jmp = DISAS_UPDATE;
+}
+
static inline void gen_add_data_offset(DisasContext *s, unsigned int insn)
{
int val, rm, shift, shiftop;
}
}
-static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn)
+static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn,
+ int extra)
{
int val, rm;
-
+
if (insn & (1 << 22)) {
/* immediate */
val = (insn & 0xf) | ((insn >> 4) & 0xf0);
if (!(insn & (1 << 23)))
val = -val;
+ val += extra;
if (val != 0)
gen_op_addl_T1_im(val);
} else {
/* register */
+ if (extra)
+ gen_op_addl_T1_im(extra);
rm = (insn) & 0xf;
gen_movl_T2_reg(s, rm);
if (!(insn & (1 << 23)))
VFP_OP(touiz)
VFP_OP(tosi)
VFP_OP(tosiz)
-VFP_OP(ld)
-VFP_OP(st)
#undef VFP_OP
+static inline void gen_vfp_ld(DisasContext *s, int dp)
+{
+ if (dp)
+ gen_ldst(vfp_ldd, s);
+ else
+ gen_ldst(vfp_lds, s);
+}
+
+static inline void gen_vfp_st(DisasContext *s, int dp)
+{
+ if (dp)
+ gen_ldst(vfp_std, s);
+ else
+ gen_ldst(vfp_sts, s);
+}
+
static inline long
vfp_reg_offset (int dp, int reg)
{
static inline void gen_mov_F1_vreg(int dp, int reg)
{
- if (dp)
- gen_op_vfp_getreg_F1d(vfp_reg_offset(dp, reg));
- else
- gen_op_vfp_getreg_F1s(vfp_reg_offset(dp, reg));
+ if (dp)
+ gen_op_vfp_getreg_F1d(vfp_reg_offset(dp, reg));
+ else
+ gen_op_vfp_getreg_F1s(vfp_reg_offset(dp, reg));
+}
+
+static inline void gen_mov_vreg_F0(int dp, int reg)
+{
+ if (dp)
+ gen_op_vfp_setreg_F0d(vfp_reg_offset(dp, reg));
+ else
+ gen_op_vfp_setreg_F0s(vfp_reg_offset(dp, reg));
+}
+
+#define ARM_CP_RW_BIT (1 << 20)
+
+static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn)
+{
+ int rd;
+ uint32_t offset;
+
+ rd = (insn >> 16) & 0xf;
+ gen_movl_T1_reg(s, rd);
+
+ offset = (insn & 0xff) << ((insn >> 7) & 2);
+ if (insn & (1 << 24)) {
+ /* Pre indexed */
+ if (insn & (1 << 23))
+ gen_op_addl_T1_im(offset);
+ else
+ gen_op_addl_T1_im(-offset);
+
+ if (insn & (1 << 21))
+ gen_movl_reg_T1(s, rd);
+ } else if (insn & (1 << 21)) {
+ /* Post indexed */
+ if (insn & (1 << 23))
+ gen_op_movl_T0_im(offset);
+ else
+ gen_op_movl_T0_im(- offset);
+ gen_op_addl_T0_T1();
+ gen_movl_reg_T0(s, rd);
+ } else if (!(insn & (1 << 23)))
+ return 1;
+ return 0;
+}
+
+static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask)
+{
+ int rd = (insn >> 0) & 0xf;
+
+ if (insn & (1 << 8))
+ if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3)
+ return 1;
+ else
+ gen_op_iwmmxt_movl_T0_wCx(rd);
+ else
+ gen_op_iwmmxt_movl_T0_T1_wRn(rd);
+
+ gen_op_movl_T1_im(mask);
+ gen_op_andl_T0_T1();
+ return 0;
+}
+
+/* Disassemble an iwMMXt instruction. Returns nonzero if an error occured
+ (ie. an undefined instruction). */
+static int disas_iwmmxt_insn(CPUState *env, DisasContext *s, uint32_t insn)
+{
+ int rd, wrd;
+ int rdhi, rdlo, rd0, rd1, i;
+
+ if ((insn & 0x0e000e00) == 0x0c000000) {
+ if ((insn & 0x0fe00ff0) == 0x0c400000) {
+ wrd = insn & 0xf;
+ rdlo = (insn >> 12) & 0xf;
+ rdhi = (insn >> 16) & 0xf;
+ if (insn & ARM_CP_RW_BIT) { /* TMRRC */
+ gen_op_iwmmxt_movl_T0_T1_wRn(wrd);
+ gen_movl_reg_T0(s, rdlo);
+ gen_movl_reg_T1(s, rdhi);
+ } else { /* TMCRR */
+ gen_movl_T0_reg(s, rdlo);
+ gen_movl_T1_reg(s, rdhi);
+ gen_op_iwmmxt_movl_wRn_T0_T1(wrd);
+ gen_op_iwmmxt_set_mup();
+ }
+ return 0;
+ }
+
+ wrd = (insn >> 12) & 0xf;
+ if (gen_iwmmxt_address(s, insn))
+ return 1;
+ if (insn & ARM_CP_RW_BIT) {
+ if ((insn >> 28) == 0xf) { /* WLDRW wCx */
+ gen_ldst(ldl, s);
+ gen_op_iwmmxt_movl_wCx_T0(wrd);
+ } else {
+ if (insn & (1 << 8))
+ if (insn & (1 << 22)) /* WLDRD */
+ gen_ldst(iwmmxt_ldq, s);
+ else /* WLDRW wRd */
+ gen_ldst(iwmmxt_ldl, s);
+ else
+ if (insn & (1 << 22)) /* WLDRH */
+ gen_ldst(iwmmxt_ldw, s);
+ else /* WLDRB */
+ gen_ldst(iwmmxt_ldb, s);
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ }
+ } else {
+ if ((insn >> 28) == 0xf) { /* WSTRW wCx */
+ gen_op_iwmmxt_movl_T0_wCx(wrd);
+ gen_ldst(stl, s);
+ } else {
+ gen_op_iwmmxt_movq_M0_wRn(wrd);
+ if (insn & (1 << 8))
+ if (insn & (1 << 22)) /* WSTRD */
+ gen_ldst(iwmmxt_stq, s);
+ else /* WSTRW wRd */
+ gen_ldst(iwmmxt_stl, s);
+ else
+ if (insn & (1 << 22)) /* WSTRH */
+ gen_ldst(iwmmxt_ldw, s);
+ else /* WSTRB */
+ gen_ldst(iwmmxt_stb, s);
+ }
+ }
+ return 0;
+ }
+
+ if ((insn & 0x0f000000) != 0x0e000000)
+ return 1;
+
+ switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) {
+ case 0x000: /* WOR */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 0) & 0xf;
+ rd1 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ gen_op_iwmmxt_orq_M0_wRn(rd1);
+ gen_op_iwmmxt_setpsr_nz();
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x011: /* TMCR */
+ if (insn & 0xf)
+ return 1;
+ rd = (insn >> 12) & 0xf;
+ wrd = (insn >> 16) & 0xf;
+ switch (wrd) {
+ case ARM_IWMMXT_wCID:
+ case ARM_IWMMXT_wCASF:
+ break;
+ case ARM_IWMMXT_wCon:
+ gen_op_iwmmxt_set_cup();
+ /* Fall through. */
+ case ARM_IWMMXT_wCSSF:
+ gen_op_iwmmxt_movl_T0_wCx(wrd);
+ gen_movl_T1_reg(s, rd);
+ gen_op_bicl_T0_T1();
+ gen_op_iwmmxt_movl_wCx_T0(wrd);
+ break;
+ case ARM_IWMMXT_wCGR0:
+ case ARM_IWMMXT_wCGR1:
+ case ARM_IWMMXT_wCGR2:
+ case ARM_IWMMXT_wCGR3:
+ gen_op_iwmmxt_set_cup();
+ gen_movl_reg_T0(s, rd);
+ gen_op_iwmmxt_movl_wCx_T0(wrd);
+ break;
+ default:
+ return 1;
+ }
+ break;
+ case 0x100: /* WXOR */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 0) & 0xf;
+ rd1 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ gen_op_iwmmxt_xorq_M0_wRn(rd1);
+ gen_op_iwmmxt_setpsr_nz();
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x111: /* TMRC */
+ if (insn & 0xf)
+ return 1;
+ rd = (insn >> 12) & 0xf;
+ wrd = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movl_T0_wCx(wrd);
+ gen_movl_reg_T0(s, rd);
+ break;
+ case 0x300: /* WANDN */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 0) & 0xf;
+ rd1 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ gen_op_iwmmxt_negq_M0();
+ gen_op_iwmmxt_andq_M0_wRn(rd1);
+ gen_op_iwmmxt_setpsr_nz();
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x200: /* WAND */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 0) & 0xf;
+ rd1 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ gen_op_iwmmxt_andq_M0_wRn(rd1);
+ gen_op_iwmmxt_setpsr_nz();
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x810: case 0xa10: /* WMADD */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 0) & 0xf;
+ rd1 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_maddsq_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_madduq_M0_wRn(rd1);
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ gen_op_iwmmxt_unpacklb_M0_wRn(rd1);
+ break;
+ case 1:
+ gen_op_iwmmxt_unpacklw_M0_wRn(rd1);
+ break;
+ case 2:
+ gen_op_iwmmxt_unpackll_M0_wRn(rd1);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ gen_op_iwmmxt_unpackhb_M0_wRn(rd1);
+ break;
+ case 1:
+ gen_op_iwmmxt_unpackhw_M0_wRn(rd1);
+ break;
+ case 2:
+ gen_op_iwmmxt_unpackhl_M0_wRn(rd1);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (insn & (1 << 22))
+ gen_op_iwmmxt_sadw_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_sadb_M0_wRn(rd1);
+ if (!(insn & (1 << 20)))
+ gen_op_iwmmxt_addl_M0_wRn(wrd);
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_mulsw_M0_wRn(rd1, (insn & (1 << 20)) ? 16 : 0);
+ else
+ gen_op_iwmmxt_muluw_M0_wRn(rd1, (insn & (1 << 20)) ? 16 : 0);
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_macsw_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_macuw_M0_wRn(rd1);
+ if (!(insn & (1 << 20))) {
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_addsq_M0_wRn(wrd);
+ else
+ gen_op_iwmmxt_adduq_M0_wRn(wrd);
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ gen_op_iwmmxt_cmpeqb_M0_wRn(rd1);
+ break;
+ case 1:
+ gen_op_iwmmxt_cmpeqw_M0_wRn(rd1);
+ break;
+ case 2:
+ gen_op_iwmmxt_cmpeql_M0_wRn(rd1);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (insn & (1 << 22))
+ gen_op_iwmmxt_avgw_M0_wRn(rd1, (insn >> 20) & 1);
+ else
+ gen_op_iwmmxt_avgb_M0_wRn(rd1, (insn >> 20) & 1);
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ gen_op_iwmmxt_movl_T0_wCx(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3));
+ gen_op_movl_T1_im(7);
+ gen_op_andl_T0_T1();
+ gen_op_iwmmxt_align_M0_T0_wRn(rd1);
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */
+ rd = (insn >> 12) & 0xf;
+ wrd = (insn >> 16) & 0xf;
+ gen_movl_T0_reg(s, rd);
+ gen_op_iwmmxt_movq_M0_wRn(wrd);
+ switch ((insn >> 6) & 3) {
+ case 0:
+ gen_op_movl_T1_im(0xff);
+ gen_op_iwmmxt_insr_M0_T0_T1((insn & 7) << 3);
+ break;
+ case 1:
+ gen_op_movl_T1_im(0xffff);
+ gen_op_iwmmxt_insr_M0_T0_T1((insn & 3) << 4);
+ break;
+ case 2:
+ gen_op_movl_T1_im(0xffffffff);
+ gen_op_iwmmxt_insr_M0_T0_T1((insn & 1) << 5);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */
+ rd = (insn >> 12) & 0xf;
+ wrd = (insn >> 16) & 0xf;
+ if (rd == 15)
+ return 1;
+ gen_op_iwmmxt_movq_M0_wRn(wrd);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ if (insn & 8)
+ gen_op_iwmmxt_extrsb_T0_M0((insn & 7) << 3);
+ else {
+ gen_op_movl_T1_im(0xff);
+ gen_op_iwmmxt_extru_T0_M0_T1((insn & 7) << 3);
+ }
+ break;
+ case 1:
+ if (insn & 8)
+ gen_op_iwmmxt_extrsw_T0_M0((insn & 3) << 4);
+ else {
+ gen_op_movl_T1_im(0xffff);
+ gen_op_iwmmxt_extru_T0_M0_T1((insn & 3) << 4);
+ }
+ break;
+ case 2:
+ gen_op_movl_T1_im(0xffffffff);
+ gen_op_iwmmxt_extru_T0_M0_T1((insn & 1) << 5);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_movl_reg_TN[0][rd]();
+ break;
+ case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */
+ if ((insn & 0x000ff008) != 0x0003f000)
+ return 1;
+ gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ gen_op_shrl_T1_im(((insn & 7) << 2) + 0);
+ break;
+ case 1:
+ gen_op_shrl_T1_im(((insn & 3) << 3) + 4);
+ break;
+ case 2:
+ gen_op_shrl_T1_im(((insn & 1) << 4) + 12);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_shll_T1_im(28);
+ gen_op_movl_T0_T1();
+ gen_op_movl_cpsr_T0(0xf0000000);
+ break;
+ case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */
+ rd = (insn >> 12) & 0xf;
+ wrd = (insn >> 16) & 0xf;
+ gen_movl_T0_reg(s, rd);
+ switch ((insn >> 6) & 3) {
+ case 0:
+ gen_op_iwmmxt_bcstb_M0_T0();
+ break;
+ case 1:
+ gen_op_iwmmxt_bcstw_M0_T0();
+ break;
+ case 2:
+ gen_op_iwmmxt_bcstl_M0_T0();
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */
+ if ((insn & 0x000ff00f) != 0x0003f000)
+ return 1;
+ gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ for (i = 0; i < 7; i ++) {
+ gen_op_shll_T1_im(4);
+ gen_op_andl_T0_T1();
+ }
+ break;
+ case 1:
+ for (i = 0; i < 3; i ++) {
+ gen_op_shll_T1_im(8);
+ gen_op_andl_T0_T1();
+ }
+ break;
+ case 2:
+ gen_op_shll_T1_im(16);
+ gen_op_andl_T0_T1();
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_movl_cpsr_T0(0xf0000000);
+ break;
+ case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ gen_op_iwmmxt_addcb_M0();
+ break;
+ case 1:
+ gen_op_iwmmxt_addcw_M0();
+ break;
+ case 2:
+ gen_op_iwmmxt_addcl_M0();
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */
+ if ((insn & 0x000ff00f) != 0x0003f000)
+ return 1;
+ gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ for (i = 0; i < 7; i ++) {
+ gen_op_shll_T1_im(4);
+ gen_op_orl_T0_T1();
+ }
+ break;
+ case 1:
+ for (i = 0; i < 3; i ++) {
+ gen_op_shll_T1_im(8);
+ gen_op_orl_T0_T1();
+ }
+ break;
+ case 2:
+ gen_op_shll_T1_im(16);
+ gen_op_orl_T0_T1();
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_movl_T1_im(0xf0000000);
+ gen_op_andl_T0_T1();
+ gen_op_movl_cpsr_T0(0xf0000000);
+ break;
+ case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */
+ rd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ if ((insn & 0xf) != 0)
+ return 1;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ gen_op_iwmmxt_msbb_T0_M0();
+ break;
+ case 1:
+ gen_op_iwmmxt_msbw_T0_M0();
+ break;
+ case 2:
+ gen_op_iwmmxt_msbl_T0_M0();
+ break;
+ case 3:
+ return 1;
+ }
+ gen_movl_reg_T0(s, rd);
+ break;
+ case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */
+ case 0x906: case 0xb06: case 0xd06: case 0xf06:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_cmpgtub_M0_wRn(rd1);
+ break;
+ case 1:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1);
+ break;
+ case 2:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_cmpgtul_M0_wRn(rd1);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */
+ case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_unpacklsb_M0();
+ else
+ gen_op_iwmmxt_unpacklub_M0();
+ break;
+ case 1:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_unpacklsw_M0();
+ else
+ gen_op_iwmmxt_unpackluw_M0();
+ break;
+ case 2:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_unpacklsl_M0();
+ else
+ gen_op_iwmmxt_unpacklul_M0();
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */
+ case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_unpackhsb_M0();
+ else
+ gen_op_iwmmxt_unpackhub_M0();
+ break;
+ case 1:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_unpackhsw_M0();
+ else
+ gen_op_iwmmxt_unpackhuw_M0();
+ break;
+ case 2:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_unpackhsl_M0();
+ else
+ gen_op_iwmmxt_unpackhul_M0();
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */
+ case 0x214: case 0x614: case 0xa14: case 0xe14:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (gen_iwmmxt_shift(insn, 0xff))
+ return 1;
+ switch ((insn >> 22) & 3) {
+ case 0:
+ return 1;
+ case 1:
+ gen_op_iwmmxt_srlw_M0_T0();
+ break;
+ case 2:
+ gen_op_iwmmxt_srll_M0_T0();
+ break;
+ case 3:
+ gen_op_iwmmxt_srlq_M0_T0();
+ break;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */
+ case 0x014: case 0x414: case 0x814: case 0xc14:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (gen_iwmmxt_shift(insn, 0xff))
+ return 1;
+ switch ((insn >> 22) & 3) {
+ case 0:
+ return 1;
+ case 1:
+ gen_op_iwmmxt_sraw_M0_T0();
+ break;
+ case 2:
+ gen_op_iwmmxt_sral_M0_T0();
+ break;
+ case 3:
+ gen_op_iwmmxt_sraq_M0_T0();
+ break;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */
+ case 0x114: case 0x514: case 0x914: case 0xd14:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (gen_iwmmxt_shift(insn, 0xff))
+ return 1;
+ switch ((insn >> 22) & 3) {
+ case 0:
+ return 1;
+ case 1:
+ gen_op_iwmmxt_sllw_M0_T0();
+ break;
+ case 2:
+ gen_op_iwmmxt_slll_M0_T0();
+ break;
+ case 3:
+ gen_op_iwmmxt_sllq_M0_T0();
+ break;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */
+ case 0x314: case 0x714: case 0xb14: case 0xf14:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ return 1;
+ case 1:
+ if (gen_iwmmxt_shift(insn, 0xf))
+ return 1;
+ gen_op_iwmmxt_rorw_M0_T0();
+ break;
+ case 2:
+ if (gen_iwmmxt_shift(insn, 0x1f))
+ return 1;
+ gen_op_iwmmxt_rorl_M0_T0();
+ break;
+ case 3:
+ if (gen_iwmmxt_shift(insn, 0x3f))
+ return 1;
+ gen_op_iwmmxt_rorq_M0_T0();
+ break;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */
+ case 0x916: case 0xb16: case 0xd16: case 0xf16:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_minsb_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_minub_M0_wRn(rd1);
+ break;
+ case 1:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_minsw_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_minuw_M0_wRn(rd1);
+ break;
+ case 2:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_minsl_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_minul_M0_wRn(rd1);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */
+ case 0x816: case 0xa16: case 0xc16: case 0xe16:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 22) & 3) {
+ case 0:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_maxsb_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_maxub_M0_wRn(rd1);
+ break;
+ case 1:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_maxsw_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_maxuw_M0_wRn(rd1);
+ break;
+ case 2:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_maxsl_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_maxul_M0_wRn(rd1);
+ break;
+ case 3:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */
+ case 0x402: case 0x502: case 0x602: case 0x702:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ gen_op_movl_T0_im((insn >> 20) & 3);
+ gen_op_iwmmxt_align_M0_T0_wRn(rd1);
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */
+ case 0x41a: case 0x51a: case 0x61a: case 0x71a:
+ case 0x81a: case 0x91a: case 0xa1a: case 0xb1a:
+ case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 20) & 0xf) {
+ case 0x0:
+ gen_op_iwmmxt_subnb_M0_wRn(rd1);
+ break;
+ case 0x1:
+ gen_op_iwmmxt_subub_M0_wRn(rd1);
+ break;
+ case 0x3:
+ gen_op_iwmmxt_subsb_M0_wRn(rd1);
+ break;
+ case 0x4:
+ gen_op_iwmmxt_subnw_M0_wRn(rd1);
+ break;
+ case 0x5:
+ gen_op_iwmmxt_subuw_M0_wRn(rd1);
+ break;
+ case 0x7:
+ gen_op_iwmmxt_subsw_M0_wRn(rd1);
+ break;
+ case 0x8:
+ gen_op_iwmmxt_subnl_M0_wRn(rd1);
+ break;
+ case 0x9:
+ gen_op_iwmmxt_subul_M0_wRn(rd1);
+ break;
+ case 0xb:
+ gen_op_iwmmxt_subsl_M0_wRn(rd1);
+ break;
+ default:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */
+ case 0x41e: case 0x51e: case 0x61e: case 0x71e:
+ case 0x81e: case 0x91e: case 0xa1e: case 0xb1e:
+ case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ gen_op_movl_T0_im(((insn >> 16) & 0xf0) | (insn & 0x0f));
+ gen_op_iwmmxt_shufh_M0_T0();
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */
+ case 0x418: case 0x518: case 0x618: case 0x718:
+ case 0x818: case 0x918: case 0xa18: case 0xb18:
+ case 0xc18: case 0xd18: case 0xe18: case 0xf18:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ switch ((insn >> 20) & 0xf) {
+ case 0x0:
+ gen_op_iwmmxt_addnb_M0_wRn(rd1);
+ break;
+ case 0x1:
+ gen_op_iwmmxt_addub_M0_wRn(rd1);
+ break;
+ case 0x3:
+ gen_op_iwmmxt_addsb_M0_wRn(rd1);
+ break;
+ case 0x4:
+ gen_op_iwmmxt_addnw_M0_wRn(rd1);
+ break;
+ case 0x5:
+ gen_op_iwmmxt_adduw_M0_wRn(rd1);
+ break;
+ case 0x7:
+ gen_op_iwmmxt_addsw_M0_wRn(rd1);
+ break;
+ case 0x8:
+ gen_op_iwmmxt_addnl_M0_wRn(rd1);
+ break;
+ case 0x9:
+ gen_op_iwmmxt_addul_M0_wRn(rd1);
+ break;
+ case 0xb:
+ gen_op_iwmmxt_addsl_M0_wRn(rd1);
+ break;
+ default:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ break;
+ case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */
+ case 0x408: case 0x508: case 0x608: case 0x708:
+ case 0x808: case 0x908: case 0xa08: case 0xb08:
+ case 0xc08: case 0xd08: case 0xe08: case 0xf08:
+ wrd = (insn >> 12) & 0xf;
+ rd0 = (insn >> 16) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ gen_op_iwmmxt_movq_M0_wRn(rd0);
+ if (!(insn & (1 << 20)))
+ return 1;
+ switch ((insn >> 22) & 3) {
+ case 0:
+ return 1;
+ case 1:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_packsw_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_packuw_M0_wRn(rd1);
+ break;
+ case 2:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_packsl_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_packul_M0_wRn(rd1);
+ break;
+ case 3:
+ if (insn & (1 << 21))
+ gen_op_iwmmxt_packsq_M0_wRn(rd1);
+ else
+ gen_op_iwmmxt_packuq_M0_wRn(rd1);
+ break;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ gen_op_iwmmxt_set_cup();
+ 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:
+ wrd = (insn >> 5) & 0xf;
+ rd0 = (insn >> 12) & 0xf;
+ rd1 = (insn >> 0) & 0xf;
+ if (rd0 == 0xf || rd1 == 0xf)
+ return 1;
+ gen_op_iwmmxt_movq_M0_wRn(wrd);
+ switch ((insn >> 16) & 0xf) {
+ case 0x0: /* TMIA */
+ gen_op_movl_TN_reg[0][rd0]();
+ gen_op_movl_TN_reg[1][rd1]();
+ gen_op_iwmmxt_muladdsl_M0_T0_T1();
+ break;
+ case 0x8: /* TMIAPH */
+ gen_op_movl_TN_reg[0][rd0]();
+ gen_op_movl_TN_reg[1][rd1]();
+ gen_op_iwmmxt_muladdsw_M0_T0_T1();
+ break;
+ case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */
+ gen_op_movl_TN_reg[1][rd0]();
+ if (insn & (1 << 16))
+ gen_op_shrl_T1_im(16);
+ gen_op_movl_T0_T1();
+ gen_op_movl_TN_reg[1][rd1]();
+ if (insn & (1 << 17))
+ gen_op_shrl_T1_im(16);
+ gen_op_iwmmxt_muladdswl_M0_T0_T1();
+ break;
+ default:
+ return 1;
+ }
+ gen_op_iwmmxt_movq_wRn_M0(wrd);
+ gen_op_iwmmxt_set_mup();
+ break;
+ default:
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Disassemble an XScale DSP instruction. Returns nonzero if an error occured
+ (ie. an undefined instruction). */
+static int disas_dsp_insn(CPUState *env, DisasContext *s, uint32_t insn)
+{
+ int acc, rd0, rd1, rdhi, rdlo;
+
+ if ((insn & 0x0ff00f10) == 0x0e200010) {
+ /* Multiply with Internal Accumulate Format */
+ rd0 = (insn >> 12) & 0xf;
+ rd1 = insn & 0xf;
+ acc = (insn >> 5) & 7;
+
+ if (acc != 0)
+ return 1;
+
+ switch ((insn >> 16) & 0xf) {
+ case 0x0: /* MIA */
+ gen_op_movl_TN_reg[0][rd0]();
+ gen_op_movl_TN_reg[1][rd1]();
+ gen_op_iwmmxt_muladdsl_M0_T0_T1();
+ break;
+ case 0x8: /* MIAPH */
+ gen_op_movl_TN_reg[0][rd0]();
+ gen_op_movl_TN_reg[1][rd1]();
+ gen_op_iwmmxt_muladdsw_M0_T0_T1();
+ break;
+ case 0xc: /* MIABB */
+ case 0xd: /* MIABT */
+ case 0xe: /* MIATB */
+ case 0xf: /* MIATT */
+ gen_op_movl_TN_reg[1][rd0]();
+ if (insn & (1 << 16))
+ gen_op_shrl_T1_im(16);
+ gen_op_movl_T0_T1();
+ gen_op_movl_TN_reg[1][rd1]();
+ if (insn & (1 << 17))
+ gen_op_shrl_T1_im(16);
+ gen_op_iwmmxt_muladdswl_M0_T0_T1();
+ break;
+ default:
+ return 1;
+ }
+
+ gen_op_iwmmxt_movq_wRn_M0(acc);
+ return 0;
+ }
+
+ if ((insn & 0x0fe00ff8) == 0x0c400000) {
+ /* Internal Accumulator Access Format */
+ rdhi = (insn >> 16) & 0xf;
+ rdlo = (insn >> 12) & 0xf;
+ acc = insn & 7;
+
+ if (acc != 0)
+ return 1;
+
+ if (insn & ARM_CP_RW_BIT) { /* MRA */
+ gen_op_iwmmxt_movl_T0_T1_wRn(acc);
+ gen_op_movl_reg_TN[0][rdlo]();
+ gen_op_movl_T0_im((1 << (40 - 32)) - 1);
+ gen_op_andl_T0_T1();
+ gen_op_movl_reg_TN[0][rdhi]();
+ } else { /* MAR */
+ gen_op_movl_TN_reg[0][rdlo]();
+ gen_op_movl_TN_reg[1][rdhi]();
+ gen_op_iwmmxt_movl_wRn_T0_T1(acc);
+ }
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Disassemble system coprocessor instruction. Return nonzero if
+ instruction is not defined. */
+static int disas_cp_insn(CPUState *env, DisasContext *s, uint32_t insn)
+{
+ uint32_t rd = (insn >> 12) & 0xf;
+ uint32_t cp = (insn >> 8) & 0xf;
+ if (IS_USER(s)) {
+ return 1;
+ }
+
+ if (insn & ARM_CP_RW_BIT) {
+ if (!env->cp[cp].cp_read)
+ return 1;
+ gen_op_movl_T0_im((uint32_t) s->pc);
+ gen_op_movl_reg_TN[0][15]();
+ gen_op_movl_T0_cp(insn);
+ gen_movl_reg_T0(s, rd);
+ } else {
+ if (!env->cp[cp].cp_write)
+ return 1;
+ gen_op_movl_T0_im((uint32_t) s->pc);
+ gen_op_movl_reg_TN[0][15]();
+ gen_movl_T0_reg(s, rd);
+ gen_op_movl_cp_T0(insn);
+ }
+ return 0;
}
-static inline void gen_mov_vreg_F0(int dp, int reg)
+/* Disassemble system coprocessor (cp15) instruction. Return nonzero if
+ instruction is not defined. */
+static int disas_cp15_insn(CPUState *env, DisasContext *s, uint32_t insn)
{
- if (dp)
- gen_op_vfp_setreg_F0d(vfp_reg_offset(dp, reg));
- else
- gen_op_vfp_setreg_F0s(vfp_reg_offset(dp, reg));
+ uint32_t rd;
+
+ /* ??? Some cp15 registers are accessible from userspace. */
+ if (IS_USER(s)) {
+ return 1;
+ }
+ if ((insn & 0x0fff0fff) == 0x0e070f90
+ || (insn & 0x0fff0fff) == 0x0e070f58) {
+ /* Wait for interrupt. */
+ gen_op_movl_T0_im((long)s->pc);
+ gen_op_movl_reg_TN[0][15]();
+ gen_op_wfi();
+ s->is_jmp = DISAS_JUMP;
+ return 0;
+ }
+ rd = (insn >> 12) & 0xf;
+ if (insn & ARM_CP_RW_BIT) {
+ gen_op_movl_T0_cp15(insn);
+ /* If the destination register is r15 then sets condition codes. */
+ if (rd != 15)
+ gen_movl_reg_T0(s, rd);
+ } else {
+ gen_movl_T0_reg(s, rd);
+ gen_op_movl_cp15_T0(insn);
+ /* Normally we would always end the TB here, but Linux
+ * arch/arm/mach-pxa/sleep.S expects two instructions following
+ * an MMU enable to execute from cache. Imitate this behaviour. */
+ if (!arm_feature(env, ARM_FEATURE_XSCALE) ||
+ (insn & 0x0fff0fff) != 0x0e010f10)
+ gen_lookup_tb(s);
+ }
+ return 0;
}
/* Disassemble a VFP instruction. Returns nonzero if an error occured
uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask;
int dp, veclen;
+ if (!arm_feature(env, ARM_FEATURE_VFP))
+ return 1;
+
+ if ((env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) == 0) {
+ /* VFP disabled. Only allow fmxr/fmrx to/from fpexc and fpsid. */
+ if ((insn & 0x0fe00fff) != 0x0ee00a10)
+ return 1;
+ rn = (insn >> 16) & 0xf;
+ if (rn != 0 && rn != 8)
+ return 1;
+ }
dp = ((insn & 0xf00) == 0xb00);
switch ((insn >> 24) & 0xf) {
case 0xe:
we only set half the register. */
gen_mov_F0_vreg(1, rn);
gen_op_vfp_mrrd();
- if (insn & (1 << 20)) {
+ if (insn & ARM_CP_RW_BIT) {
/* vfp->arm */
if (insn & (1 << 21))
gen_movl_reg_T1(s, rd);
}
} else {
rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1);
- if (insn & (1 << 20)) {
+ if (insn & ARM_CP_RW_BIT) {
/* vfp->arm */
if (insn & (1 << 21)) {
/* system register */
+ rn >>= 1;
switch (rn) {
- case 0: /* fpsid */
- n = 0x0091A0000;
+ case ARM_VFP_FPSID:
+ case ARM_VFP_FPEXC:
+ case ARM_VFP_FPINST:
+ case ARM_VFP_FPINST2:
+ gen_op_vfp_movl_T0_xreg(rn);
break;
- case 2: /* fpscr */
+ case ARM_VFP_FPSCR:
if (rd == 15)
gen_op_vfp_movl_T0_fpscr_flags();
else
gen_op_vfp_mrs();
}
if (rd == 15) {
- /* This will only set the 4 flag bits */
- gen_op_movl_psr_T0();
+ /* Set the 4 flag bits in the CPSR. */
+ gen_op_movl_cpsr_T0(0xf0000000);
} else
gen_movl_reg_T0(s, rd);
} else {
/* arm->vfp */
gen_movl_T0_reg(s, rd);
if (insn & (1 << 21)) {
+ rn >>= 1;
/* system register */
switch (rn) {
- case 0: /* fpsid */
+ case ARM_VFP_FPSID:
/* Writes are ignored. */
break;
- case 2: /* fpscr */
+ case ARM_VFP_FPSCR:
gen_op_vfp_movl_fpscr_T0();
- /* This could change vector settings, so jump to
- the next instuction. */
- gen_op_movl_T0_im(s->pc);
- gen_movl_reg_T0(s, 15);
- s->is_jmp = DISAS_UPDATE;
+ gen_lookup_tb(s);
+ break;
+ case ARM_VFP_FPEXC:
+ gen_op_vfp_movl_xreg_T0(rn);
+ gen_lookup_tb(s);
+ break;
+ case ARM_VFP_FPINST:
+ case ARM_VFP_FPINST2:
+ gen_op_vfp_movl_xreg_T0(rn);
break;
default:
return 1;
delta_m = 0;
delta_d = 0;
bank_mask = 0;
-
+
if (veclen > 0) {
if (dp)
bank_mask = 0xc;
} else
rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1);
- if (insn & (1 << 20)) {
+ if (insn & ARM_CP_RW_BIT) {
/* vfp->arm */
if (dp) {
gen_mov_F0_vreg(1, rm);
offset = -offset;
gen_op_addl_T1_im(offset);
if (insn & (1 << 20)) {
- gen_vfp_ld(dp);
+ gen_vfp_ld(s, dp);
gen_mov_vreg_F0(dp, rd);
} else {
gen_mov_F0_vreg(dp, rd);
- gen_vfp_st(dp);
+ gen_vfp_st(s, dp);
}
} else {
/* load/store multiple */
else
offset = 4;
for (i = 0; i < n; i++) {
- if (insn & (1 << 20)) {
+ if (insn & ARM_CP_RW_BIT) {
/* load */
- gen_vfp_ld(dp);
+ gen_vfp_ld(s, dp);
gen_mov_vreg_F0(dp, rd + i);
} else {
/* store */
gen_mov_F0_vreg(dp, rd + i);
- gen_vfp_st(dp);
+ gen_vfp_st(s, dp);
}
gen_op_addl_T1_im(offset);
}
return 0;
}
+static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest)
+{
+ TranslationBlock *tb;
+
+ tb = s->tb;
+ if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
+ if (n == 0)
+ gen_op_goto_tb0(TBPARAM(tb));
+ else
+ gen_op_goto_tb1(TBPARAM(tb));
+ gen_op_movl_T0_im(dest);
+ gen_op_movl_r15_T0();
+ gen_op_movl_T0_im((long)tb + n);
+ gen_op_exit_tb();
+ } else {
+ gen_op_movl_T0_im(dest);
+ gen_op_movl_r15_T0();
+ gen_op_movl_T0_0();
+ gen_op_exit_tb();
+ }
+}
+
static inline void gen_jmp (DisasContext *s, uint32_t dest)
{
if (__builtin_expect(s->singlestep_enabled, 0)) {
/* An indirect jump so that we still trigger the debug exception. */
+ if (s->thumb)
+ dest |= 1;
gen_op_movl_T0_im(dest);
gen_bx(s);
} else {
- gen_op_jmp((long)s->tb, dest);
+ gen_goto_tb(s, 0, dest);
s->is_jmp = DISAS_TB_JUMP;
}
}
+static inline void gen_mulxy(int x, int y)
+{
+ if (x)
+ gen_op_sarl_T0_im(16);
+ else
+ gen_op_sxth_T0();
+ if (y)
+ gen_op_sarl_T1_im(16);
+ else
+ gen_op_sxth_T1();
+ gen_op_mul_T0_T1();
+}
+
+/* Return the mask of PSR bits set by a MSR instruction. */
+static uint32_t msr_mask(DisasContext *s, int flags, int spsr) {
+ uint32_t mask;
+
+ mask = 0;
+ if (flags & (1 << 0))
+ mask |= 0xff;
+ if (flags & (1 << 1))
+ mask |= 0xff00;
+ if (flags & (1 << 2))
+ mask |= 0xff0000;
+ if (flags & (1 << 3))
+ mask |= 0xff000000;
+ /* Mask out undefined bits. */
+ mask &= 0xf90f03ff;
+ /* Mask out state bits. */
+ if (!spsr)
+ mask &= ~0x01000020;
+ /* Mask out privileged bits. */
+ if (IS_USER(s))
+ mask &= 0xf80f0200;
+ return mask;
+}
+
+/* Returns nonzero if access to the PSR is not permitted. */
+static int gen_set_psr_T0(DisasContext *s, uint32_t mask, int spsr)
+{
+ if (spsr) {
+ /* ??? This is also undefined in system mode. */
+ if (IS_USER(s))
+ return 1;
+ gen_op_movl_spsr_T0(mask);
+ } else {
+ gen_op_movl_cpsr_T0(mask);
+ }
+ gen_lookup_tb(s);
+ return 0;
+}
+
+static void gen_exception_return(DisasContext *s)
+{
+ gen_op_movl_reg_TN[0][15]();
+ gen_op_movl_T0_spsr();
+ gen_op_movl_cpsr_T0(0xffffffff);
+ s->is_jmp = DISAS_UPDATE;
+}
+
static void disas_arm_insn(CPUState * env, DisasContext *s)
{
unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh;
-
- insn = ldl(s->pc);
+
+ insn = ldl_code(s->pc);
s->pc += 4;
-
+
cond = insn >> 28;
if (cond == 0xf){
/* Unconditional instructions. */
gen_op_movl_T0_im(val);
gen_bx(s);
return;
+ } else if ((insn & 0x0e000f00) == 0x0c000100) {
+ if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
+ /* iWMMXt register transfer. */
+ if (env->cp15.c15_cpar & (1 << 1))
+ if (!disas_iwmmxt_insn(env, s, insn))
+ return;
+ }
} else if ((insn & 0x0fe00000) == 0x0c400000) {
/* Coprocessor double register transfer. */
} else if ((insn & 0x0f000010) == 0x0e000010) {
/* Additional coprocessor register transfer. */
+ } else if ((insn & 0x0ff10010) == 0x01000000) {
+ /* cps (privileged) */
+ } else if ((insn & 0x0ffffdff) == 0x01010000) {
+ /* setend */
+ if (insn & (1 << 9)) {
+ /* BE8 mode not implemented. */
+ goto illegal_op;
+ }
+ return;
}
goto illegal_op;
}
if (cond != 0xe) {
/* if not always execute, we generate a conditional jump to
next instruction */
- gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
- s->is_jmp = DISAS_JUMP_NEXT;
+ s->condlabel = gen_new_label();
+ gen_test_cc[cond ^ 1](s->condlabel);
+ s->condjmp = 1;
+ //gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
+ //s->is_jmp = DISAS_JUMP_NEXT;
}
if ((insn & 0x0f900000) == 0x03000000) {
- if ((insn & 0x0ff0f000) != 0x0360f000)
+ if ((insn & 0x0fb0f000) != 0x0320f000)
goto illegal_op;
/* CPSR = immediate */
val = insn & 0xff;
if (shift)
val = (val >> shift) | (val << (32 - shift));
gen_op_movl_T0_im(val);
- if (insn & (1 << 19))
- gen_op_movl_psr_T0();
+ i = ((insn & (1 << 22)) != 0);
+ if (gen_set_psr_T0(s, msr_mask(s, (insn >> 16) & 0xf, i), i))
+ goto illegal_op;
} else if ((insn & 0x0f900000) == 0x01000000
&& (insn & 0x00000090) != 0x00000090) {
/* miscellaneous instructions */
rm = insn & 0xf;
switch (sh) {
case 0x0: /* move program status register */
- if (op1 & 2) {
- /* SPSR not accessible in user mode */
- goto illegal_op;
- }
if (op1 & 1) {
- /* CPSR = reg */
+ /* PSR = reg */
gen_movl_T0_reg(s, rm);
- if (insn & (1 << 19))
- gen_op_movl_psr_T0();
+ i = ((op1 & 2) != 0);
+ if (gen_set_psr_T0(s, msr_mask(s, (insn >> 16) & 0xf, i), i))
+ goto illegal_op;
} else {
- /* reg = CPSR */
+ /* reg = PSR */
rd = (insn >> 12) & 0xf;
- gen_op_movl_T0_psr();
+ if (op1 & 2) {
+ if (IS_USER(s))
+ goto illegal_op;
+ gen_op_movl_T0_spsr();
+ } else {
+ gen_op_movl_T0_cpsr();
+ }
gen_movl_reg_T0(s, rd);
}
break;
goto illegal_op;
}
break;
+ case 0x2:
+ if (op1 == 1) {
+ ARCH(5J); /* bxj */
+ /* Trivial implementation equivalent to bx. */
+ gen_movl_T0_reg(s, rm);
+ gen_bx(s);
+ } else {
+ goto illegal_op;
+ }
+ break;
case 0x3:
if (op1 != 1)
goto illegal_op;
/* branch link/exchange thumb (blx) */
val = (uint32_t)s->pc;
- gen_op_movl_T0_im(val);
- gen_movl_reg_T0(s, 14);
+ gen_op_movl_T1_im(val);
gen_movl_T0_reg(s, rm);
+ gen_movl_reg_T1(s, 14);
gen_bx(s);
break;
case 0x5: /* saturating add/subtract */
rd = (insn >> 12) & 0xf;
rn = (insn >> 16) & 0xf;
- gen_movl_T0_reg(s, rn);
- if (op1 & 2) {
- gen_movl_T1_reg(s, rn);
- if (op1 & 1)
- gen_op_subl_T0_T1_saturate();
- else
- gen_op_addl_T0_T1_saturate();
- }
- gen_movl_T1_reg(s, rm);
+ gen_movl_T0_reg(s, rm);
+ gen_movl_T1_reg(s, rn);
+ if (op1 & 2)
+ gen_op_double_T1_saturate();
if (op1 & 1)
gen_op_subl_T0_T1_saturate();
else
gen_op_addl_T0_T1_saturate();
- gen_movl_reg_T0(s, rn);
+ gen_movl_reg_T0(s, rd);
+ break;
+ case 7: /* bkpt */
+ gen_op_movl_T0_im((long)s->pc - 4);
+ gen_op_movl_reg_TN[0][15]();
+ gen_op_bkpt();
+ s->is_jmp = DISAS_JUMP;
break;
case 0x8: /* signed multiply */
case 0xa:
if (sh & 4)
gen_op_sarl_T1_im(16);
else
- gen_op_sxl_T1();
+ gen_op_sxth_T1();
gen_op_imulw_T0_T1();
if ((sh & 2) == 0) {
gen_movl_T1_reg(s, rn);
} else {
/* 16 * 16 */
gen_movl_T0_reg(s, rm);
- if (sh & 2)
- gen_op_sarl_T0_im(16);
- else
- gen_op_sxl_T0();
gen_movl_T1_reg(s, rs);
- if (sh & 4)
- gen_op_sarl_T1_im(16);
- else
- gen_op_sxl_T1();
+ gen_mulxy(sh & 2, sh & 4);
if (op1 == 2) {
- gen_op_imull_T0_T1();
+ gen_op_signbit_T1_T0();
gen_op_addq_T0_T1(rn, rd);
gen_movl_reg_T0(s, rn);
gen_movl_reg_T1(s, rd);
} else {
- gen_op_mul_T0_T1();
if (op1 == 0) {
gen_movl_T1_reg(s, rn);
gen_op_addl_T0_T1_setq();
(insn & 0x00000090) != 0x90) ||
((insn & 0x0e000000) == (1 << 25))) {
int set_cc, logic_cc, shiftop;
-
+
op1 = (insn >> 21) & 0xf;
set_cc = (insn >> 20) & 1;
logic_cc = table_logic_cc[op1] & set_cc;
gen_op_logic_T0_cc();
break;
case 0x02:
- if (set_cc)
+ if (set_cc && rd == 15) {
+ /* SUBS r15, ... is used for exception return. */
+ if (IS_USER(s))
+ goto illegal_op;
gen_op_subl_T0_T1_cc();
- else
- gen_op_subl_T0_T1();
- gen_movl_reg_T0(s, rd);
+ gen_exception_return(s);
+ } else {
+ if (set_cc)
+ gen_op_subl_T0_T1_cc();
+ else
+ gen_op_subl_T0_T1();
+ gen_movl_reg_T0(s, rd);
+ }
break;
case 0x03:
if (set_cc)
gen_op_logic_T0_cc();
break;
case 0x0d:
- gen_movl_reg_T1(s, rd);
- if (logic_cc)
- gen_op_logic_T1_cc();
+ if (logic_cc && rd == 15) {
+ /* MOVS r15, ... is used for exception return. */
+ if (IS_USER(s))
+ goto illegal_op;
+ gen_op_movl_T0_T1();
+ gen_exception_return(s);
+ } else {
+ gen_movl_reg_T1(s, rd);
+ if (logic_cc)
+ gen_op_logic_T1_cc();
+ }
break;
case 0x0e:
gen_op_bicl_T0_T1();
gen_movl_T1_reg(s, rn);
gen_op_addl_T0_T1();
}
- if (insn & (1 << 20))
+ if (insn & (1 << 20))
gen_op_logic_T0_cc();
gen_movl_reg_T0(s, rd);
} else {
/* 64 bit mul */
gen_movl_T0_reg(s, rs);
gen_movl_T1_reg(s, rm);
- if (insn & (1 << 22))
+ if (insn & (1 << 22))
gen_op_imull_T0_T1();
else
gen_op_mull_T0_T1();
if (insn & (1 << 21)) /* mult accumulate */
gen_op_addq_T0_T1(rn, rd);
if (!(insn & (1 << 23))) { /* double accumulate */
+ ARCH(6);
gen_op_addq_lo_T0_T1(rn);
gen_op_addq_lo_T0_T1(rd);
}
- if (insn & (1 << 20))
+ if (insn & (1 << 20))
gen_op_logicq_cc();
gen_movl_reg_T0(s, rn);
gen_movl_reg_T1(s, rd);
} else {
/* SWP instruction */
rm = (insn) & 0xf;
-
+
gen_movl_T0_reg(s, rm);
gen_movl_T1_reg(s, rn);
if (insn & (1 << 22)) {
- gen_op_swpb_T0_T1();
+ gen_ldst(swpb, s);
} else {
- gen_op_swpl_T0_T1();
+ gen_ldst(swpl, s);
}
gen_movl_reg_T0(s, rd);
}
}
} else {
+ int address_offset;
+ int load;
/* Misc load/store */
rn = (insn >> 16) & 0xf;
rd = (insn >> 12) & 0xf;
gen_movl_T1_reg(s, rn);
if (insn & (1 << 24))
- gen_add_datah_offset(s, insn);
+ gen_add_datah_offset(s, insn, 0);
+ address_offset = 0;
if (insn & (1 << 20)) {
/* load */
switch(sh) {
case 1:
- gen_op_lduw_T0_T1();
+ gen_ldst(lduw, s);
break;
case 2:
- gen_op_ldsb_T0_T1();
+ gen_ldst(ldsb, s);
break;
default:
case 3:
- gen_op_ldsw_T0_T1();
+ gen_ldst(ldsw, s);
break;
}
- gen_movl_reg_T0(s, rd);
+ load = 1;
} else if (sh & 2) {
/* doubleword */
if (sh & 1) {
/* store */
gen_movl_T0_reg(s, rd);
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
gen_op_addl_T1_im(4);
gen_movl_T0_reg(s, rd + 1);
- gen_op_stl_T0_T1();
- if ((insn & (1 << 24)) || (insn & (1 << 20)))
- gen_op_addl_T1_im(-4);
+ gen_ldst(stl, s);
+ load = 0;
} else {
/* load */
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
gen_movl_reg_T0(s, rd);
gen_op_addl_T1_im(4);
- gen_op_ldl_T0_T1();
- gen_movl_reg_T0(s, rd + 1);
- if ((insn & (1 << 24)) || (insn & (1 << 20)))
- gen_op_addl_T1_im(-4);
+ gen_ldst(ldl, s);
+ rd++;
+ load = 1;
}
+ address_offset = -4;
} else {
/* store */
gen_movl_T0_reg(s, rd);
- gen_op_stw_T0_T1();
+ gen_ldst(stw, s);
+ load = 0;
}
+ /* Perform base writeback before the loaded value to
+ ensure correct behavior with overlapping index registers.
+ ldrd with base writeback is is undefined if the
+ destination and index registers overlap. */
if (!(insn & (1 << 24))) {
- gen_add_datah_offset(s, insn);
+ gen_add_datah_offset(s, insn, address_offset);
gen_movl_reg_T1(s, rn);
} else if (insn & (1 << 21)) {
+ if (address_offset)
+ gen_op_addl_T1_im(address_offset);
gen_movl_reg_T1(s, rn);
}
+ if (load) {
+ /* Complete the load. */
+ gen_movl_reg_T0(s, rd);
+ }
}
break;
case 0x4:
case 0x5:
case 0x6:
case 0x7:
+ /* Check for undefined extension instructions
+ * per the ARM Bible IE:
+ * xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx
+ */
+ sh = (0xf << 20) | (0xf << 4);
+ if (op1 == 0x7 && ((insn & sh) == sh))
+ {
+ goto illegal_op;
+ }
/* load/store byte/word */
rn = (insn >> 16) & 0xf;
rd = (insn >> 12) & 0xf;
gen_movl_T1_reg(s, rn);
+ i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000);
if (insn & (1 << 24))
gen_add_data_offset(s, insn);
if (insn & (1 << 20)) {
/* load */
+ s->is_mem = 1;
+#if defined(CONFIG_USER_ONLY)
if (insn & (1 << 22))
- gen_op_ldub_T0_T1();
- else
- gen_op_ldl_T0_T1();
- if (rd == 15)
- gen_bx(s);
+ gen_op_ldub_raw();
else
- gen_movl_reg_T0(s, rd);
+ gen_op_ldl_raw();
+#else
+ if (insn & (1 << 22)) {
+ if (i)
+ gen_op_ldub_user();
+ else
+ gen_op_ldub_kernel();
+ } else {
+ if (i)
+ gen_op_ldl_user();
+ else
+ gen_op_ldl_kernel();
+ }
+#endif
} else {
/* store */
gen_movl_T0_reg(s, rd);
+#if defined(CONFIG_USER_ONLY)
if (insn & (1 << 22))
- gen_op_stb_T0_T1();
+ gen_op_stb_raw();
else
- gen_op_stl_T0_T1();
+ gen_op_stl_raw();
+#else
+ if (insn & (1 << 22)) {
+ if (i)
+ gen_op_stb_user();
+ else
+ gen_op_stb_kernel();
+ } else {
+ if (i)
+ gen_op_stl_user();
+ else
+ gen_op_stl_kernel();
+ }
+#endif
}
if (!(insn & (1 << 24))) {
gen_add_data_offset(s, insn);
} else if (insn & (1 << 21))
gen_movl_reg_T1(s, rn); {
}
+ if (insn & (1 << 20)) {
+ /* Complete the load. */
+ if (rd == 15)
+ gen_bx(s);
+ else
+ gen_movl_reg_T0(s, rd);
+ }
break;
case 0x08:
case 0x09:
{
- int j, n;
+ int j, n, user, loaded_base;
/* load/store multiple words */
/* XXX: store correct base if write back */
- if (insn & (1 << 22))
- goto illegal_op; /* only usable in supervisor mode */
+ user = 0;
+ if (insn & (1 << 22)) {
+ if (IS_USER(s))
+ goto illegal_op; /* only usable in supervisor mode */
+
+ if ((insn & (1 << 15)) == 0)
+ user = 1;
+ }
rn = (insn >> 16) & 0xf;
gen_movl_T1_reg(s, rn);
-
+
/* compute total size */
+ loaded_base = 0;
n = 0;
for(i=0;i<16;i++) {
if (insn & (1 << i))
if (insn & (1 << i)) {
if (insn & (1 << 20)) {
/* load */
- gen_op_ldl_T0_T1();
- if (i == 15)
+ gen_ldst(ldl, s);
+ if (i == 15) {
gen_bx(s);
- else
+ } else if (user) {
+ gen_op_movl_user_T0(i);
+ } else if (i == rn) {
+ gen_op_movl_T2_T0();
+ loaded_base = 1;
+ } else {
gen_movl_reg_T0(s, i);
+ }
} else {
/* store */
if (i == 15) {
- /* special case: r15 = PC + 12 */
- val = (long)s->pc + 8;
+ /* special case: r15 = PC + 8 */
+ val = (long)s->pc + 4;
gen_op_movl_TN_im[0](val);
+ } else if (user) {
+ gen_op_movl_T0_user(i);
} else {
gen_movl_T0_reg(s, i);
}
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
}
j++;
/* no need to add after the last transfer */
}
gen_movl_reg_T1(s, rn);
}
+ if (loaded_base) {
+ gen_op_movl_T0_T2();
+ gen_movl_reg_T0(s, rn);
+ }
+ if ((insn & (1 << 22)) && !user) {
+ /* Restore CPSR from SPSR. */
+ gen_op_movl_T0_spsr();
+ gen_op_movl_cpsr_T0(0xffffffff);
+ s->is_jmp = DISAS_UPDATE;
+ }
}
break;
case 0xa:
case 0xb:
{
int32_t offset;
-
+
/* branch (and link) */
val = (int32_t)s->pc;
if (insn & (1 << 24)) {
case 0xe:
/* Coprocessor. */
op1 = (insn >> 8) & 0xf;
+ if (arm_feature(env, ARM_FEATURE_XSCALE) &&
+ ((env->cp15.c15_cpar ^ 0x3fff) & (1 << op1)))
+ goto illegal_op;
switch (op1) {
+ case 0 ... 1:
+ if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
+ if (disas_iwmmxt_insn(env, s, insn))
+ goto illegal_op;
+ } else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
+ if (disas_dsp_insn(env, s, insn))
+ goto illegal_op;
+ } else
+ goto illegal_op;
+ break;
+ case 2 ... 9:
+ case 12 ... 14:
+ if (disas_cp_insn (env, s, insn))
+ goto illegal_op;
+ break;
case 10:
case 11:
if (disas_vfp_insn (env, s, insn))
goto illegal_op;
break;
+ case 15:
+ if (disas_cp15_insn (env, s, insn))
+ goto illegal_op;
+ break;
default:
/* unknown coprocessor. */
goto illegal_op;
int32_t offset;
int i;
- insn = lduw(s->pc);
+ insn = lduw_code(s->pc);
s->pc += 2;
-
+
switch (insn >> 12) {
case 0: case 1:
rd = insn & 7;
gen_movl_T1_reg(s, rm);
}
if (insn & (1 << 9))
- gen_op_addl_T0_T1_cc();
+ gen_op_subl_T0_T1_cc();
else
gen_op_addl_T0_T1_cc();
gen_movl_reg_T0(s, rd);
case 4:
if (insn & (1 << 11)) {
rd = (insn >> 8) & 7;
- /* load pc-relative */
- val = (insn & 0xff) * 4;
+ /* load pc-relative. Bit 1 of PC is ignored. */
+ val = s->pc + 2 + ((insn & 0xff) * 4);
+ val &= ~(uint32_t)2;
gen_op_movl_T1_im(val);
- gen_movl_T2_reg(s, 15);
- gen_op_addl_T1_T2();
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
gen_movl_reg_T0(s, rd);
break;
}
gen_movl_T0_reg(s, rd);
gen_movl_T1_reg(s, rm);
- switch (insn >> 6) {
+ switch (op) {
case 0x0: /* and */
gen_op_andl_T0_T1();
gen_op_logic_T0_cc();
break;
case 0x2: /* lsl */
gen_op_shll_T1_T0_cc();
+ gen_op_logic_T1_cc();
break;
case 0x3: /* lsr */
gen_op_shrl_T1_T0_cc();
+ gen_op_logic_T1_cc();
break;
case 0x4: /* asr */
gen_op_sarl_T1_T0_cc();
+ gen_op_logic_T1_cc();
break;
case 0x5: /* adc */
gen_op_adcl_T0_T1_cc();
break;
case 0x7: /* ror */
gen_op_rorl_T1_T0_cc();
+ gen_op_logic_T1_cc();
break;
case 0x8: /* tst */
gen_op_andl_T0_T1();
gen_op_logic_T0_cc();
rd = 16;
+ break;
case 0x9: /* neg */
- gen_op_rsbl_T0_T1_cc();
+ gen_op_subl_T0_T1_cc();
break;
case 0xa: /* cmp */
gen_op_subl_T0_T1_cc();
gen_op_notl_T1();
gen_op_logic_T1_cc();
val = 1;
+ rm = rd;
break;
}
if (rd != 16) {
if (val)
- gen_movl_reg_T1(s, rd);
+ gen_movl_reg_T1(s, rm);
else
gen_movl_reg_T0(s, rd);
}
switch (op) {
case 0: /* str */
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
break;
case 1: /* strh */
- gen_op_stw_T0_T1();
+ gen_ldst(stw, s);
break;
case 2: /* strb */
- gen_op_stb_T0_T1();
+ gen_ldst(stb, s);
break;
case 3: /* ldrsb */
- gen_op_ldsb_T0_T1();
+ gen_ldst(ldsb, s);
break;
case 4: /* ldr */
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
break;
case 5: /* ldrh */
- gen_op_ldsw_T0_T1();
+ gen_ldst(lduw, s);
break;
case 6: /* ldrb */
- gen_op_ldub_T0_T1();
+ gen_ldst(ldub, s);
break;
case 7: /* ldrsh */
- gen_op_ldsw_T0_T1();
+ gen_ldst(ldsw, s);
break;
}
if (op >= 3) /* load */
if (insn & (1 << 11)) {
/* load */
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
}
break;
if (insn & (1 << 11)) {
/* load */
- gen_op_ldub_T0_T1();
+ gen_ldst(ldub, s);
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
- gen_op_stb_T0_T1();
+ gen_ldst(stb, s);
}
break;
if (insn & (1 << 11)) {
/* load */
- gen_op_lduw_T0_T1();
+ gen_ldst(lduw, s);
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
- gen_op_stw_T0_T1();
+ gen_ldst(stw, s);
}
break;
if (insn & (1 << 11)) {
/* load */
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
gen_movl_reg_T0(s, rd);
} else {
/* store */
gen_movl_T0_reg(s, rd);
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
}
break;
case 10:
/* add to high reg */
rd = (insn >> 8) & 7;
- if (insn & (1 << 11))
- rm = 13; /* sp */
- else
- rm = 15; /* pc */
- gen_movl_T0_reg(s, rm);
+ if (insn & (1 << 11)) {
+ /* SP */
+ gen_movl_T0_reg(s, 13);
+ } else {
+ /* PC. bit 1 is ignored. */
+ gen_op_movl_T0_im((s->pc + 2) & ~(uint32_t)2);
+ }
val = (insn & 0xff) * 4;
gen_op_movl_T1_im(val);
gen_op_addl_T0_T1();
case 4: case 5: case 0xc: case 0xd:
/* push/pop */
gen_movl_T1_reg(s, 13);
- if (insn & (1 << 11))
- val = 4;
+ if (insn & (1 << 8))
+ offset = 4;
else
- val = -4;
- gen_op_movl_T2_im(val);
+ offset = 0;
+ for (i = 0; i < 8; i++) {
+ if (insn & (1 << i))
+ offset += 4;
+ }
+ if ((insn & (1 << 11)) == 0) {
+ gen_op_movl_T2_im(-offset);
+ gen_op_addl_T1_T2();
+ }
+ gen_op_movl_T2_im(4);
for (i = 0; i < 8; i++) {
if (insn & (1 << i)) {
if (insn & (1 << 11)) {
/* pop */
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
gen_movl_reg_T0(s, i);
} else {
/* push */
gen_movl_T0_reg(s, i);
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
}
- /* move to the next address */
+ /* advance to the next address. */
gen_op_addl_T1_T2();
}
}
if (insn & (1 << 8)) {
if (insn & (1 << 11)) {
/* pop pc */
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
/* don't set the pc until the rest of the instruction
has completed */
} else {
/* push lr */
gen_movl_T0_reg(s, 14);
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
}
gen_op_addl_T1_T2();
}
-
+ if ((insn & (1 << 11)) == 0) {
+ gen_op_movl_T2_im(-offset);
+ gen_op_addl_T1_T2();
+ }
/* write back the new stack pointer */
gen_movl_reg_T1(s, 13);
/* set the new PC value */
gen_bx(s);
break;
+ case 0xe: /* bkpt */
+ gen_op_movl_T0_im((long)s->pc - 2);
+ gen_op_movl_reg_TN[0][15]();
+ gen_op_bkpt();
+ s->is_jmp = DISAS_JUMP;
+ break;
+
default:
goto undef;
}
rn = (insn >> 8) & 0x7;
gen_movl_T1_reg(s, rn);
gen_op_movl_T2_im(4);
- val = 0;
for (i = 0; i < 8; i++) {
if (insn & (1 << i)) {
- /* advance to the next address */
- if (val)
- gen_op_addl_T1_T2();
- else
- val = 1;
if (insn & (1 << 11)) {
/* load */
- gen_op_ldl_T0_T1();
+ gen_ldst(ldl, s);
gen_movl_reg_T0(s, i);
} else {
/* store */
gen_movl_T0_reg(s, i);
- gen_op_stl_T0_T1();
+ gen_ldst(stl, s);
}
+ /* advance to the next address */
+ gen_op_addl_T1_T2();
}
}
+ /* Base register writeback. */
+ if ((insn & (1 << rn)) == 0)
+ gen_movl_reg_T1(s, rn);
break;
case 13:
break;
}
/* generate a conditional jump to next instruction */
- gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
- s->is_jmp = DISAS_JUMP_NEXT;
+ s->condlabel = gen_new_label();
+ gen_test_cc[cond ^ 1](s->condlabel);
+ s->condjmp = 1;
+ //gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
+ //s->is_jmp = DISAS_JUMP_NEXT;
gen_movl_T1_reg(s, 15);
/* jump to the offset */
- val = (uint32_t)s->pc;
+ val = (uint32_t)s->pc + 2;
offset = ((int32_t)insn << 24) >> 24;
- val += (offset << 1) + 2;
+ val += offset << 1;
gen_jmp(s, val);
break;
case 14:
/* unconditional branch */
- if (insn & (1 << 11))
- goto undef; /* Second half of a blx */
+ if (insn & (1 << 11)) {
+ /* Second half of blx. */
+ offset = ((insn & 0x7ff) << 1);
+ gen_movl_T0_reg(s, 14);
+ gen_op_movl_T1_im(offset);
+ gen_op_addl_T0_T1();
+ gen_op_movl_T1_im(0xfffffffc);
+ gen_op_andl_T0_T1();
+
+ val = (uint32_t)s->pc;
+ gen_op_movl_T1_im(val | 1);
+ gen_movl_reg_T1(s, 14);
+ gen_bx(s);
+ break;
+ }
val = (uint32_t)s->pc;
offset = ((int32_t)insn << 21) >> 21;
val += (offset << 1) + 2;
case 15:
/* branch and link [and switch to arm] */
+ if ((s->pc & ~TARGET_PAGE_MASK) == 0) {
+ /* Instruction spans a page boundary. Implement it as two
+ 16-bit instructions in case the second half causes an
+ prefetch abort. */
+ offset = ((int32_t)insn << 21) >> 9;
+ val = s->pc + 2 + offset;
+ gen_op_movl_T0_im(val);
+ gen_movl_reg_T0(s, 14);
+ break;
+ }
+ if (insn & (1 << 11)) {
+ /* Second half of bl. */
+ offset = ((insn & 0x7ff) << 1) | 1;
+ gen_movl_T0_reg(s, 14);
+ gen_op_movl_T1_im(offset);
+ gen_op_addl_T0_T1();
+
+ val = (uint32_t)s->pc;
+ gen_op_movl_T1_im(val | 1);
+ gen_movl_reg_T1(s, 14);
+ gen_bx(s);
+ break;
+ }
offset = ((int32_t)insn << 21) >> 10;
- insn = lduw(s->pc);
+ insn = lduw_code(s->pc);
offset |= insn & 0x7ff;
val = (uint32_t)s->pc + 2;
gen_op_movl_T1_im(val | 1);
gen_movl_reg_T1(s, 14);
-
- val += offset;
- if (insn & (1 << 11)) {
+
+ val += offset << 1;
+ if (insn & (1 << 12)) {
/* bl */
gen_jmp(s, val);
} else {
/* blx */
+ val &= ~(uint32_t)2;
gen_op_movl_T0_im(val);
gen_bx(s);
}
}
return;
undef:
- gen_op_movl_T0_im((long)s->pc - 4);
+ gen_op_movl_T0_im((long)s->pc - 2);
gen_op_movl_reg_TN[0][15]();
gen_op_undef_insn();
s->is_jmp = DISAS_JUMP;
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
basic block 'tb'. If search_pc is TRUE, also generate PC
information for each intermediate instruction. */
-static inline int gen_intermediate_code_internal(CPUState *env,
- TranslationBlock *tb,
+static inline int gen_intermediate_code_internal(CPUState *env,
+ TranslationBlock *tb,
int search_pc)
{
DisasContext dc1, *dc = &dc1;
uint16_t *gen_opc_end;
int j, lj;
target_ulong pc_start;
-
+ uint32_t next_page_start;
+
/* generate intermediate code */
pc_start = tb->pc;
-
+
dc->tb = tb;
gen_opc_ptr = gen_opc_buf;
dc->is_jmp = DISAS_NEXT;
dc->pc = pc_start;
dc->singlestep_enabled = env->singlestep_enabled;
+ dc->condjmp = 0;
+ dc->thumb = env->thumb;
+ dc->is_mem = 0;
+#if !defined(CONFIG_USER_ONLY)
+ dc->user = (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR;
+#endif
+ next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
+ nb_gen_labels = 0;
lj = -1;
do {
if (env->nb_breakpoints > 0) {
gen_opc_pc[lj] = dc->pc;
gen_opc_instr_start[lj] = 1;
}
+
if (env->thumb)
disas_thumb_insn(dc);
else
disas_arm_insn(env, dc);
+
+ if (dc->condjmp && !dc->is_jmp) {
+ gen_set_label(dc->condlabel);
+ dc->condjmp = 0;
+ }
+ /* Terminate the TB on memory ops if watchpoints are present. */
+ /* FIXME: This should be replacd by the deterministic execution
+ * IRQ raising bits. */
+ if (dc->is_mem && env->nb_watchpoints)
+ break;
+
+ /* Translation stops when a conditional branch is enoutered.
+ * Otherwise the subsequent code could get translated several times.
+ * Also stop translation when a page boundary is reached. This
+ * ensures prefech aborts occur at the right place. */
} while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
!env->singlestep_enabled &&
- (dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32));
+ dc->pc < next_page_start);
+ /* At this stage dc->condjmp will only be set when the skipped
+ * instruction was a conditional branch, and the PC has already been
+ * written. */
if (__builtin_expect(env->singlestep_enabled, 0)) {
/* Make sure the pc is updated, and raise a debug exception. */
- if (dc->is_jmp == DISAS_NEXT || dc->is_jmp == DISAS_JUMP_NEXT) {
+ if (dc->condjmp) {
+ gen_op_debug();
+ gen_set_label(dc->condlabel);
+ }
+ if (dc->condjmp || !dc->is_jmp) {
gen_op_movl_T0_im((long)dc->pc);
gen_op_movl_reg_TN[0][15]();
+ dc->condjmp = 0;
}
gen_op_debug();
} else {
switch(dc->is_jmp) {
- case DISAS_JUMP_NEXT:
case DISAS_NEXT:
- gen_op_jmp((long)dc->tb, (long)dc->pc);
+ gen_goto_tb(dc, 1, dc->pc);
break;
default:
case DISAS_JUMP:
/* nothing more to generate */
break;
}
+ if (dc->condjmp) {
+ gen_set_label(dc->condlabel);
+ gen_goto_tb(dc, 1, dc->pc);
+ dc->condjmp = 0;
+ }
}
*gen_opc_ptr = INDEX_op_end;
if (loglevel & CPU_LOG_TB_IN_ASM) {
fprintf(logfile, "----------------\n");
fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
- target_disas(logfile, pc_start, dc->pc - pc_start, 0);
+ target_disas(logfile, pc_start, dc->pc - pc_start, env->thumb);
fprintf(logfile, "\n");
if (loglevel & (CPU_LOG_TB_OP)) {
fprintf(logfile, "OP:\n");
}
}
#endif
- if (!search_pc)
+ if (search_pc) {
+ j = gen_opc_ptr - gen_opc_buf;
+ lj++;
+ while (lj <= j)
+ gen_opc_instr_start[lj++] = 0;
+ } else {
tb->size = dc->pc - pc_start;
+ }
return 0;
}
return gen_intermediate_code_internal(env, tb, 1);
}
-CPUARMState *cpu_arm_init(void)
-{
- CPUARMState *env;
-
- cpu_exec_init();
-
- env = malloc(sizeof(CPUARMState));
- if (!env)
- return NULL;
- memset(env, 0, sizeof(CPUARMState));
- cpu_single_env = env;
- return env;
-}
-
-void cpu_arm_close(CPUARMState *env)
-{
- free(env);
-}
-
-void cpu_dump_state(CPUState *env, FILE *f,
+static const char *cpu_mode_names[16] = {
+ "usr", "fiq", "irq", "svc", "???", "???", "???", "abt",
+ "???", "???", "???", "und", "???", "???", "???", "sys"
+};
+void cpu_dump_state(CPUState *env, FILE *f,
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
int flags)
{
int i;
- struct {
+ union {
uint32_t i;
float s;
} s0, s1;
CPU_DoubleU d;
+ /* ??? This assumes float64 and double have the same layout.
+ Oh well, it's only debug dumps. */
+ union {
+ float64 f64;
+ double d;
+ } d0;
+ uint32_t psr;
for(i=0;i<16;i++) {
cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
else
cpu_fprintf(f, " ");
}
- cpu_fprintf(f, "PSR=%08x %c%c%c%c\n",
- env->cpsr,
- env->cpsr & (1 << 31) ? 'N' : '-',
- env->cpsr & (1 << 30) ? 'Z' : '-',
- env->cpsr & (1 << 29) ? 'C' : '-',
- env->cpsr & (1 << 28) ? 'V' : '-');
+ psr = cpsr_read(env);
+ cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n",
+ psr,
+ psr & (1 << 31) ? 'N' : '-',
+ psr & (1 << 30) ? 'Z' : '-',
+ psr & (1 << 29) ? 'C' : '-',
+ psr & (1 << 28) ? 'V' : '-',
+ psr & CPSR_T ? 'T' : 'A',
+ cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26);
for (i = 0; i < 16; i++) {
d.d = env->vfp.regs[i];
s0.i = d.l.lower;
s1.i = d.l.upper;
- cpu_fprintf(f, "s%02d=%08x(%8f) s%02d=%08x(%8f) d%02d=%08x%08x(%8f)\n",
+ d0.f64 = d.d;
+ cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g) d%02d=%08x%08x(%8g)\n",
i * 2, (int)s0.i, s0.s,
- i * 2 + 1, (int)s0.i, s0.s,
+ i * 2 + 1, (int)s1.i, s1.s,
i, (int)(uint32_t)d.l.upper, (int)(uint32_t)d.l.lower,
- d.d);
- }
- cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.fpscr);
-}
-
-target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
-{
- return addr;
-}
-
-#if defined(CONFIG_USER_ONLY)
-
-int cpu_arm_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
- int is_user, int is_softmmu)
-{
- env->cp15_6 = address;
- if (rw == 2) {
- env->exception_index = EXCP_PREFETCH_ABORT;
- } else {
- env->exception_index = EXCP_DATA_ABORT;
+ d0.d);
}
- return 1;
+ cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]);
}
-#else
-
-#error not implemented
-
-#endif
projects / qemu / blobdiff