* THE SOFTWARE.
*/
+#if defined(__ARM_ARCH_7__) || \
+ defined(__ARM_ARCH_7A__) || \
+ defined(__ARM_ARCH_7EM__) || \
+ defined(__ARM_ARCH_7M__) || \
+ defined(__ARM_ARCH_7R__)
+#define USE_ARMV7_INSTRUCTIONS
+#endif
+
+#if defined(USE_ARMV7_INSTRUCTIONS) || \
+ defined(__ARM_ARCH_6J__) || \
+ defined(__ARM_ARCH_6K__) || \
+ defined(__ARM_ARCH_6T2__) || \
+ defined(__ARM_ARCH_6Z__) || \
+ defined(__ARM_ARCH_6ZK__)
+#define USE_ARMV6_INSTRUCTIONS
+#endif
+
+#if defined(USE_ARMV6_INSTRUCTIONS) || \
+ defined(__ARM_ARCH_5T__) || \
+ defined(__ARM_ARCH_5TE__) || \
+ defined(__ARM_ARCH_5TEJ__)
+#define USE_ARMV5_INSTRUCTIONS
+#endif
+
+#ifdef USE_ARMV5_INSTRUCTIONS
+static const int use_armv5_instructions = 1;
+#else
+static const int use_armv5_instructions = 0;
+#endif
+#undef USE_ARMV5_INSTRUCTIONS
+
+#ifdef USE_ARMV6_INSTRUCTIONS
+static const int use_armv6_instructions = 1;
+#else
+static const int use_armv6_instructions = 0;
+#endif
+#undef USE_ARMV6_INSTRUCTIONS
+
+#ifdef USE_ARMV7_INSTRUCTIONS
+static const int use_armv7_instructions = 1;
+#else
+static const int use_armv7_instructions = 0;
+#endif
+#undef USE_ARMV7_INSTRUCTIONS
+
#ifndef NDEBUG
static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
"%r0",
"%r12",
"%r13",
"%r14",
+ "%pc",
};
#endif
static const int tcg_target_reg_alloc_order[] = {
- TCG_REG_R0,
- TCG_REG_R1,
- TCG_REG_R2,
- TCG_REG_R3,
TCG_REG_R4,
TCG_REG_R5,
TCG_REG_R6,
TCG_REG_R9,
TCG_REG_R10,
TCG_REG_R11,
- TCG_REG_R12,
TCG_REG_R13,
+ TCG_REG_R0,
+ TCG_REG_R1,
+ TCG_REG_R2,
+ TCG_REG_R3,
+ TCG_REG_R12,
TCG_REG_R14,
};
break;
case 'r':
-#ifndef CONFIG_SOFTMMU
- case 'd':
- case 'D':
- case 'x':
- case 'X':
-#endif
ct->ct |= TCG_CT_REG;
tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
break;
-#ifdef CONFIG_SOFTMMU
- /* qemu_ld/st inputs (unless 'X', 'd' or 'D') */
- case 'x':
+ /* qemu_ld address */
+ case 'l':
ct->ct |= TCG_CT_REG;
tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
+#ifdef CONFIG_SOFTMMU
+ /* r0 and r1 will be overwritten when reading the tlb entry,
+ so don't use these. */
tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
+#endif
break;
-
- /* qemu_ld64 data_reg */
- case 'd':
+ case 'L':
ct->ct |= TCG_CT_REG;
tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- /* r1 is still needed to load data_reg2, so don't use it. */
+#ifdef CONFIG_SOFTMMU
+ /* r1 is still needed to load data_reg or data_reg2,
+ so don't use it. */
tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
+#endif
break;
- /* qemu_ld/st64 data_reg2 */
- case 'D':
+ /* qemu_st address & data_reg */
+ case 's':
ct->ct |= TCG_CT_REG;
tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- /* r0, r1 and optionally r2 will be overwritten by the address
- * and the low word of data, so don't use these. */
+ /* r0 and r1 will be overwritten when reading the tlb entry
+ (softmmu only) and doing the byte swapping, so don't
+ use these. */
tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
-# if TARGET_LONG_BITS == 64
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R2);
-# endif
break;
-
-# if TARGET_LONG_BITS == 64
- /* qemu_ld/st addr_reg2 */
- case 'X':
+ /* qemu_st64 data_reg2 */
+ case 'S':
ct->ct |= TCG_CT_REG;
tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- /* r0 will be overwritten by the low word of base, so don't use it. */
+ /* r0 and r1 will be overwritten when reading the tlb entry
+ (softmmu only) and doing the byte swapping, so don't
+ use these. */
tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
- break;
-# endif
+#ifdef CONFIG_SOFTMMU
+ /* r2 is still needed to load data_reg, so don't use it. */
+ tcg_regset_reset_reg(ct->u.regs, TCG_REG_R2);
#endif
-
- case '1':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
- break;
-
- case '2':
- ct->ct |= TCG_CT_REG;
- tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R0);
- tcg_regset_reset_reg(ct->u.regs, TCG_REG_R1);
break;
default:
return 0;
}
+static inline uint32_t rotl(uint32_t val, int n)
+{
+ return (val << n) | (val >> (32 - n));
+}
+
+/* ARM immediates for ALU instructions are made of an unsigned 8-bit
+ right-rotated by an even amount between 0 and 30. */
+static inline int encode_imm(uint32_t imm)
+{
+ int shift;
+
+ /* simple case, only lower bits */
+ if ((imm & ~0xff) == 0)
+ return 0;
+ /* then try a simple even shift */
+ shift = ctz32(imm) & ~1;
+ if (((imm >> shift) & ~0xff) == 0)
+ return 32 - shift;
+ /* now try harder with rotations */
+ if ((rotl(imm, 2) & ~0xff) == 0)
+ return 2;
+ if ((rotl(imm, 4) & ~0xff) == 0)
+ return 4;
+ if ((rotl(imm, 6) & ~0xff) == 0)
+ return 6;
+ /* imm can't be encoded */
+ return -1;
+}
static inline int check_fit_imm(uint32_t imm)
{
- /* XXX: use rotation */
- return (imm & ~0xff) == 0;
+ return encode_imm(imm) >= 0;
}
/* Test if a constant matches the constraint.
(((offset - 8) >> 2) & 0x00ffffff));
}
+static inline void tcg_out_blx(TCGContext *s, int cond, int rn)
+{
+ tcg_out32(s, (cond << 28) | 0x012fff30 | rn);
+}
+
static inline void tcg_out_dat_reg(TCGContext *s,
int cond, int opc, int rd, int rn, int rm, int shift)
{
tcg_out_dat_imm(s, cond, ARITH_ADD, rd, 15, offset) :
tcg_out_dat_imm(s, cond, ARITH_SUB, rd, 15, -offset);
-#ifdef __ARM_ARCH_7A__
- /* use movw/movt */
- /* movw */
- tcg_out32(s, (cond << 28) | 0x03000000 | (rd << 12)
- | ((arg << 4) & 0x000f0000) | (arg & 0xfff));
- if (arg & 0xffff0000)
- /* movt */
- tcg_out32(s, (cond << 28) | 0x03400000 | (rd << 12)
- | ((arg >> 12) & 0x000f0000) | ((arg >> 16) & 0xfff));
-#else
- tcg_out_dat_imm(s, cond, ARITH_MOV, rd, 0, arg & 0xff);
- if (arg & 0x0000ff00)
- tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
- ((arg >> 8) & 0xff) | 0xc00);
- if (arg & 0x00ff0000)
- tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
- ((arg >> 16) & 0xff) | 0x800);
- if (arg & 0xff000000)
- tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
- ((arg >> 24) & 0xff) | 0x400);
-#endif
+ if (use_armv7_instructions) {
+ /* use movw/movt */
+ /* movw */
+ tcg_out32(s, (cond << 28) | 0x03000000 | (rd << 12)
+ | ((arg << 4) & 0x000f0000) | (arg & 0xfff));
+ if (arg & 0xffff0000)
+ /* movt */
+ tcg_out32(s, (cond << 28) | 0x03400000 | (rd << 12)
+ | ((arg >> 12) & 0x000f0000) | ((arg >> 16) & 0xfff));
+ } else {
+ tcg_out_dat_imm(s, cond, ARITH_MOV, rd, 0, arg & 0xff);
+ if (arg & 0x0000ff00)
+ tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
+ ((arg >> 8) & 0xff) | 0xc00);
+ if (arg & 0x00ff0000)
+ tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
+ ((arg >> 16) & 0xff) | 0x800);
+ if (arg & 0xff000000)
+ tcg_out_dat_imm(s, cond, ARITH_ORR, rd, rd,
+ ((arg >> 24) & 0xff) | 0x400);
+ }
}
static inline void tcg_out_mul32(TCGContext *s,
tcg_out32(s, (cond << 28) | ( 8 << 16) | (0 << 12) |
(rs << 8) | 0x90 | rm);
tcg_out_dat_reg(s, cond, ARITH_MOV,
- rd, 0, 8, SHIFT_IMM_LSL(0));
+ rd, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
}
}
}
}
+static inline void tcg_out_ext8s(TCGContext *s, int cond,
+ int rd, int rn)
+{
+ if (use_armv6_instructions) {
+ /* sxtb */
+ tcg_out32(s, 0x06af0070 | (cond << 28) | (rd << 12) | rn);
+ } else {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ rd, 0, rn, SHIFT_IMM_LSL(24));
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ rd, 0, rd, SHIFT_IMM_ASR(24));
+ }
+}
+
+static inline void tcg_out_ext8u(TCGContext *s, int cond,
+ int rd, int rn)
+{
+ tcg_out_dat_imm(s, cond, ARITH_AND, rd, rn, 0xff);
+}
+
+static inline void tcg_out_ext16s(TCGContext *s, int cond,
+ int rd, int rn)
+{
+ if (use_armv6_instructions) {
+ /* sxth */
+ tcg_out32(s, 0x06bf0070 | (cond << 28) | (rd << 12) | rn);
+ } else {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ rd, 0, rn, SHIFT_IMM_LSL(16));
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ rd, 0, rd, SHIFT_IMM_ASR(16));
+ }
+}
+
+static inline void tcg_out_ext16u(TCGContext *s, int cond,
+ int rd, int rn)
+{
+ if (use_armv6_instructions) {
+ /* uxth */
+ tcg_out32(s, 0x06ff0070 | (cond << 28) | (rd << 12) | rn);
+ } else {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ rd, 0, rn, SHIFT_IMM_LSL(16));
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ rd, 0, rd, SHIFT_IMM_LSR(16));
+ }
+}
+
+static inline void tcg_out_bswap16s(TCGContext *s, int cond, int rd, int rn)
+{
+ if (use_armv6_instructions) {
+ /* revsh */
+ tcg_out32(s, 0x06ff0fb0 | (cond << 28) | (rd << 12) | rn);
+ } else {
+ tcg_out_dat_reg(s, cond, ARITH_MOV,
+ TCG_REG_R8, 0, rn, SHIFT_IMM_LSL(24));
+ tcg_out_dat_reg(s, cond, ARITH_MOV,
+ TCG_REG_R8, 0, TCG_REG_R8, SHIFT_IMM_ASR(16));
+ tcg_out_dat_reg(s, cond, ARITH_ORR,
+ rd, TCG_REG_R8, rn, SHIFT_IMM_LSR(8));
+ }
+}
+
+static inline void tcg_out_bswap16(TCGContext *s, int cond, int rd, int rn)
+{
+ if (use_armv6_instructions) {
+ /* rev16 */
+ tcg_out32(s, 0x06bf0fb0 | (cond << 28) | (rd << 12) | rn);
+ } else {
+ tcg_out_dat_reg(s, cond, ARITH_MOV,
+ TCG_REG_R8, 0, rn, SHIFT_IMM_LSL(24));
+ tcg_out_dat_reg(s, cond, ARITH_MOV,
+ TCG_REG_R8, 0, TCG_REG_R8, SHIFT_IMM_LSR(16));
+ tcg_out_dat_reg(s, cond, ARITH_ORR,
+ rd, TCG_REG_R8, rn, SHIFT_IMM_LSR(8));
+ }
+}
+
+static inline void tcg_out_bswap32(TCGContext *s, int cond, int rd, int rn)
+{
+ if (use_armv6_instructions) {
+ /* rev */
+ tcg_out32(s, 0x06bf0f30 | (cond << 28) | (rd << 12) | rn);
+ } else {
+ tcg_out_dat_reg(s, cond, ARITH_EOR,
+ TCG_REG_R8, rn, rn, SHIFT_IMM_ROR(16));
+ tcg_out_dat_imm(s, cond, ARITH_BIC,
+ TCG_REG_R8, TCG_REG_R8, 0xff | 0x800);
+ tcg_out_dat_reg(s, cond, ARITH_MOV,
+ rd, 0, rn, SHIFT_IMM_ROR(8));
+ tcg_out_dat_reg(s, cond, ARITH_EOR,
+ rd, rd, TCG_REG_R8, SHIFT_IMM_LSR(8));
+ }
+}
+
static inline void tcg_out_ld32_12(TCGContext *s, int cond,
int rd, int rn, tcg_target_long im)
{
(((-im) & 0xf0) << 4) | ((-im) & 0xf));
}
-static inline void tcg_out_st16u_8(TCGContext *s, int cond,
+static inline void tcg_out_st16_8(TCGContext *s, int cond,
int rd, int rn, tcg_target_long im)
{
if (im >= 0)
(rn << 16) | (rd << 12) | rm);
}
-static inline void tcg_out_st16u_r(TCGContext *s, int cond,
+static inline void tcg_out_st16_r(TCGContext *s, int cond,
int rd, int rn, int rm)
{
tcg_out32(s, (cond << 28) | 0x018000b0 |
(((-im) & 0xf0) << 4) | ((-im) & 0xf));
}
-static inline void tcg_out_st16s_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01c000f0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x014000f0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
static inline void tcg_out_ld16s_r(TCGContext *s, int cond,
int rd, int rn, int rm)
{
(rn << 16) | (rd << 12) | rm);
}
-static inline void tcg_out_st16s_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x018000f0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
static inline void tcg_out_ld8_12(TCGContext *s, int cond,
int rd, int rn, tcg_target_long im)
{
(((-im) & 0xf0) << 4) | ((-im) & 0xf));
}
-static inline void tcg_out_st8s_8(TCGContext *s, int cond,
- int rd, int rn, tcg_target_long im)
-{
- if (im >= 0)
- tcg_out32(s, (cond << 28) | 0x01c000d0 |
- (rn << 16) | (rd << 12) |
- ((im & 0xf0) << 4) | (im & 0xf));
- else
- tcg_out32(s, (cond << 28) | 0x014000d0 |
- (rn << 16) | (rd << 12) |
- (((-im) & 0xf0) << 4) | ((-im) & 0xf));
-}
-
static inline void tcg_out_ld8s_r(TCGContext *s, int cond,
int rd, int rn, int rm)
{
(rn << 16) | (rd << 12) | rm);
}
-static inline void tcg_out_st8s_r(TCGContext *s, int cond,
- int rd, int rn, int rm)
-{
- tcg_out32(s, (cond << 28) | 0x018000d0 |
- (rn << 16) | (rd << 12) | rm);
-}
-
static inline void tcg_out_ld32u(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
tcg_out_ld16s_8(s, cond, rd, rn, offset);
}
-static inline void tcg_out_st16u(TCGContext *s, int cond,
+static inline void tcg_out_st16(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xff || offset < -0xff) {
tcg_out_movi32(s, cond, TCG_REG_R8, offset);
- tcg_out_st16u_r(s, cond, rd, rn, TCG_REG_R8);
+ tcg_out_st16_r(s, cond, rd, rn, TCG_REG_R8);
} else
- tcg_out_st16u_8(s, cond, rd, rn, offset);
+ tcg_out_st16_8(s, cond, rd, rn, offset);
}
static inline void tcg_out_ld8u(TCGContext *s, int cond,
tcg_out_ld8s_8(s, cond, rd, rn, offset);
}
-static inline void tcg_out_st8u(TCGContext *s, int cond,
+static inline void tcg_out_st8(TCGContext *s, int cond,
int rd, int rn, int32_t offset)
{
if (offset > 0xfff || offset < -0xfff) {
tcg_abort();
#else
if (cond == COND_AL) {
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
tcg_out32(s, addr); /* XXX: This is l->u.value, can we use it? */
} else {
tcg_out_movi32(s, cond, TCG_REG_R8, val - 8);
tcg_out_dat_reg(s, cond, ARITH_ADD,
- 15, 15, TCG_REG_R8, SHIFT_IMM_LSL(0));
+ TCG_REG_PC, TCG_REG_PC,
+ TCG_REG_R8, SHIFT_IMM_LSL(0));
}
#endif
}
{
int32_t val;
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R8, 0, 14, SHIFT_IMM_LSL(0));
-#endif
-
val = addr - (tcg_target_long) s->code_ptr;
if (val < 0x01fffffd && val > -0x01fffffd)
tcg_out_bl(s, cond, val);
tcg_abort();
#else
if (cond == COND_AL) {
- tcg_out_dat_imm(s, cond, ARITH_ADD, 14, 15, 4);
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
+ tcg_out_dat_imm(s, cond, ARITH_ADD, TCG_REG_R14, TCG_REG_PC, 4);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
tcg_out32(s, addr); /* XXX: This is l->u.value, can we use it? */
} else {
tcg_out_movi32(s, cond, TCG_REG_R9, addr);
- tcg_out_dat_imm(s, cond, ARITH_MOV, 14, 0, 15);
+ tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R14, 0,
+ TCG_REG_PC, SHIFT_IMM_LSL(0));
tcg_out_bx(s, cond, TCG_REG_R9);
}
#endif
}
-
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
-#endif
}
static inline void tcg_out_callr(TCGContext *s, int cond, int arg)
{
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R8, 0, 14, SHIFT_IMM_LSL(0));
-#endif
- /* TODO: on ARMv5 and ARMv6 replace with tcg_out_blx(s, cond, arg); */
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, 15, SHIFT_IMM_LSL(0));
- tcg_out_bx(s, cond, arg);
-#ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, TCG_REG_R8, SHIFT_IMM_LSL(0));
-#endif
+ if (use_armv5_instructions) {
+ tcg_out_blx(s, cond, arg);
+ } else {
+ tcg_out_dat_reg(s, cond, ARITH_MOV, TCG_REG_R14, 0,
+ TCG_REG_PC, SHIFT_IMM_LSL(0));
+ tcg_out_bx(s, cond, arg);
+ }
}
static inline void tcg_out_goto_label(TCGContext *s, int cond, int label_index)
if (l->has_value)
tcg_out_goto(s, cond, l->u.value);
else if (cond == COND_AL) {
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
tcg_out_reloc(s, s->code_ptr, R_ARM_ABS32, label_index, 31337);
s->code_ptr += 4;
} else {
}
}
-static void tcg_out_div_helper(TCGContext *s, int cond, const TCGArg *args,
- void *helper_div, void *helper_rem, int shift)
-{
- int div_reg = args[0];
- int rem_reg = args[1];
-
- /* stmdb sp!, { r0 - r3, ip, lr } */
- /* (Note that we need an even number of registers as per EABI) */
- tcg_out32(s, (cond << 28) | 0x092d500f);
-
- tcg_out_dat_reg(s, cond, ARITH_MOV, 0, 0, args[2], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 1, 0, args[3], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 2, 0, args[4], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 3, 0, 2, shift);
-
- tcg_out_call(s, cond, (uint32_t) helper_div);
- tcg_out_dat_reg(s, cond, ARITH_MOV, 8, 0, 0, SHIFT_IMM_LSL(0));
-
- /* ldmia sp, { r0 - r3, fp, lr } */
- tcg_out32(s, (cond << 28) | 0x089d500f);
-
- tcg_out_dat_reg(s, cond, ARITH_MOV, 0, 0, args[2], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 1, 0, args[3], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 2, 0, args[4], SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, 3, 0, 2, shift);
-
- tcg_out_call(s, cond, (uint32_t) helper_rem);
-
- tcg_out_dat_reg(s, cond, ARITH_MOV, rem_reg, 0, 0, SHIFT_IMM_LSL(0));
- tcg_out_dat_reg(s, cond, ARITH_MOV, div_reg, 0, 8, SHIFT_IMM_LSL(0));
-
- /* ldr r0, [sp], #4 */
- if (rem_reg != 0 && div_reg != 0)
- tcg_out32(s, (cond << 28) | 0x04bd0004);
- /* ldr r1, [sp], #4 */
- if (rem_reg != 1 && div_reg != 1)
- tcg_out32(s, (cond << 28) | 0x04bd1004);
- /* ldr r2, [sp], #4 */
- if (rem_reg != 2 && div_reg != 2)
- tcg_out32(s, (cond << 28) | 0x04bd2004);
- /* ldr r3, [sp], #4 */
- if (rem_reg != 3 && div_reg != 3)
- tcg_out32(s, (cond << 28) | 0x04bd3004);
- /* ldr ip, [sp], #4 */
- if (rem_reg != 12 && div_reg != 12)
- tcg_out32(s, (cond << 28) | 0x04bdc004);
- /* ldr lr, [sp], #4 */
- if (rem_reg != 14 && div_reg != 14)
- tcg_out32(s, (cond << 28) | 0x04bde004);
-}
-
#ifdef CONFIG_SOFTMMU
#include "../../softmmu_defs.h"
#define TLB_SHIFT (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS)
-static inline void tcg_out_qemu_ld(TCGContext *s, int cond,
- const TCGArg *args, int opc)
+static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc)
{
- int addr_reg, data_reg, data_reg2;
+ int addr_reg, data_reg, data_reg2, bswap;
#ifdef CONFIG_SOFTMMU
int mem_index, s_bits;
# if TARGET_LONG_BITS == 64
uint32_t *label_ptr;
#endif
+#ifdef TARGET_WORDS_BIGENDIAN
+ bswap = 1;
+#else
+ bswap = 0;
+#endif
data_reg = *args++;
if (opc == 3)
data_reg2 = *args++;
else
- data_reg2 = 0; /* surpress warning */
+ data_reg2 = 0; /* suppress warning */
addr_reg = *args++;
#ifdef CONFIG_SOFTMMU
# if TARGET_LONG_BITS == 64
# if CPU_TLB_BITS > 8
# error
# endif
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- 8, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV, TCG_REG_R8,
+ 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
tcg_out_dat_imm(s, COND_AL, ARITH_AND,
- 0, 8, CPU_TLB_SIZE - 1);
- tcg_out_dat_reg(s, COND_AL, ARITH_ADD,
- 0, TCG_AREG0, 0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
+ TCG_REG_R0, TCG_REG_R8, CPU_TLB_SIZE - 1);
+ tcg_out_dat_reg(s, COND_AL, ARITH_ADD, TCG_REG_R0, TCG_AREG0,
+ TCG_REG_R0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
/* In the
* ldr r1 [r0, #(offsetof(CPUState, tlb_table[mem_index][0].addr_read))]
* below, the offset is likely to exceed 12 bits if mem_index != 0 and
* before.
*/
if (mem_index)
- tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 0, 0,
+ tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R0, TCG_REG_R0,
(mem_index << (TLB_SHIFT & 1)) |
((16 - (TLB_SHIFT >> 1)) << 8));
- tcg_out_ld32_12(s, COND_AL, 1, 0,
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_R1, TCG_REG_R0,
offsetof(CPUState, tlb_table[0][0].addr_read));
- tcg_out_dat_reg(s, COND_AL, ARITH_CMP,
- 0, 1, 8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
+ tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, TCG_REG_R1,
+ TCG_REG_R8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
/* Check alignment. */
if (s_bits)
tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
# if TARGET_LONG_BITS == 64
/* XXX: possibly we could use a block data load or writeback in
* the first access. */
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
+ tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
offsetof(CPUState, tlb_table[0][0].addr_read) + 4);
- tcg_out_dat_reg(s, COND_EQ, ARITH_CMP,
- 0, 1, addr_reg2, SHIFT_IMM_LSL(0));
+ tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
+ TCG_REG_R1, addr_reg2, SHIFT_IMM_LSL(0));
# endif
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
+ tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
offsetof(CPUState, tlb_table[0][0].addend));
switch (opc) {
case 0:
- tcg_out_ld8_r(s, COND_EQ, data_reg, addr_reg, 1);
+ tcg_out_ld8_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
break;
case 0 | 4:
- tcg_out_ld8s_r(s, COND_EQ, data_reg, addr_reg, 1);
+ tcg_out_ld8s_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
break;
case 1:
- tcg_out_ld16u_r(s, COND_EQ, data_reg, addr_reg, 1);
+ tcg_out_ld16u_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
+ if (bswap) {
+ tcg_out_bswap16(s, COND_EQ, data_reg, data_reg);
+ }
break;
case 1 | 4:
- tcg_out_ld16s_r(s, COND_EQ, data_reg, addr_reg, 1);
+ if (bswap) {
+ tcg_out_ld16u_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
+ tcg_out_bswap16s(s, COND_EQ, data_reg, data_reg);
+ } else {
+ tcg_out_ld16s_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
+ }
break;
case 2:
default:
- tcg_out_ld32_r(s, COND_EQ, data_reg, addr_reg, 1);
+ tcg_out_ld32_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
+ if (bswap) {
+ tcg_out_bswap32(s, COND_EQ, data_reg, data_reg);
+ }
break;
case 3:
- tcg_out_ld32_rwb(s, COND_EQ, data_reg, 1, addr_reg);
- tcg_out_ld32_12(s, COND_EQ, data_reg2, 1, 4);
+ if (bswap) {
+ tcg_out_ld32_rwb(s, COND_EQ, data_reg2, TCG_REG_R1, addr_reg);
+ tcg_out_ld32_12(s, COND_EQ, data_reg, TCG_REG_R1, 4);
+ tcg_out_bswap32(s, COND_EQ, data_reg2, data_reg2);
+ tcg_out_bswap32(s, COND_EQ, data_reg, data_reg);
+ } else {
+ tcg_out_ld32_rwb(s, COND_EQ, data_reg, TCG_REG_R1, addr_reg);
+ tcg_out_ld32_12(s, COND_EQ, data_reg2, TCG_REG_R1, 4);
+ }
break;
}
label_ptr = (void *) s->code_ptr;
tcg_out_b(s, COND_EQ, 8);
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 8, 0, 14, SHIFT_IMM_LSL(0));
-# endif
-
/* TODO: move this code to where the constants pool will be */
- if (addr_reg)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, addr_reg, SHIFT_IMM_LSL(0));
+ if (addr_reg != TCG_REG_R0) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R0, 0, addr_reg, SHIFT_IMM_LSL(0));
+ }
# if TARGET_LONG_BITS == 32
- tcg_out_dat_imm(s, cond, ARITH_MOV, 1, 0, mem_index);
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R1, 0, mem_index);
# else
- if (addr_reg2 != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, addr_reg2, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0));
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
# endif
- tcg_out_bl(s, cond, (tcg_target_long) qemu_ld_helpers[s_bits] -
+ tcg_out_bl(s, COND_AL, (tcg_target_long) qemu_ld_helpers[s_bits] -
(tcg_target_long) s->code_ptr);
switch (opc) {
case 0 | 4:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, 0, SHIFT_IMM_LSL(24));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_ASR(24));
+ tcg_out_ext8s(s, COND_AL, data_reg, TCG_REG_R0);
break;
case 1 | 4:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, 0, SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_ASR(16));
+ tcg_out_ext16s(s, COND_AL, data_reg, TCG_REG_R0);
break;
case 0:
case 1:
case 2:
default:
- if (data_reg)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_LSL(0));
+ if (data_reg != TCG_REG_R0) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ data_reg, 0, TCG_REG_R0, SHIFT_IMM_LSL(0));
+ }
break;
case 3:
- if (data_reg != 0)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg, 0, 0, SHIFT_IMM_LSL(0));
- if (data_reg2 != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- data_reg2, 0, 1, SHIFT_IMM_LSL(0));
+ if (data_reg != TCG_REG_R0) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ data_reg, 0, TCG_REG_R0, SHIFT_IMM_LSL(0));
+ }
+ if (data_reg2 != TCG_REG_R1) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ data_reg2, 0, TCG_REG_R1, SHIFT_IMM_LSL(0));
+ }
break;
}
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, 8, SHIFT_IMM_LSL(0));
-# endif
-
*label_ptr += ((void *) s->code_ptr - (void *) label_ptr - 8) >> 2;
#else /* !CONFIG_SOFTMMU */
if (GUEST_BASE) {
i = ctz32(offset) & ~1;
rot = ((32 - i) << 7) & 0xf00;
- tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 8, addr_reg,
+ tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R8, addr_reg,
((offset >> i) & 0xff) | rot);
- addr_reg = 8;
+ addr_reg = TCG_REG_R8;
offset &= ~(0xff << i);
}
}
break;
case 1:
tcg_out_ld16u_8(s, COND_AL, data_reg, addr_reg, 0);
+ if (bswap) {
+ tcg_out_bswap16(s, COND_AL, data_reg, data_reg);
+ }
break;
case 1 | 4:
- tcg_out_ld16s_8(s, COND_AL, data_reg, addr_reg, 0);
+ if (bswap) {
+ tcg_out_ld16u_8(s, COND_AL, data_reg, addr_reg, 0);
+ tcg_out_bswap16s(s, COND_AL, data_reg, data_reg);
+ } else {
+ tcg_out_ld16s_8(s, COND_AL, data_reg, addr_reg, 0);
+ }
break;
case 2:
default:
tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
+ if (bswap) {
+ tcg_out_bswap32(s, COND_AL, data_reg, data_reg);
+ }
break;
case 3:
/* TODO: use block load -
* check that data_reg2 > data_reg or the other way */
if (data_reg == addr_reg) {
- tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4);
- tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
+ tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, bswap ? 0 : 4);
+ tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, bswap ? 4 : 0);
} else {
- tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
- tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4);
+ tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, bswap ? 4 : 0);
+ tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, bswap ? 0 : 4);
+ }
+ if (bswap) {
+ tcg_out_bswap32(s, COND_AL, data_reg, data_reg);
+ tcg_out_bswap32(s, COND_AL, data_reg2, data_reg2);
}
break;
}
#endif
}
-static inline void tcg_out_qemu_st(TCGContext *s, int cond,
- const TCGArg *args, int opc)
+static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc)
{
- int addr_reg, data_reg, data_reg2;
+ int addr_reg, data_reg, data_reg2, bswap;
#ifdef CONFIG_SOFTMMU
int mem_index, s_bits;
# if TARGET_LONG_BITS == 64
uint32_t *label_ptr;
#endif
+#ifdef TARGET_WORDS_BIGENDIAN
+ bswap = 1;
+#else
+ bswap = 0;
+#endif
data_reg = *args++;
if (opc == 3)
data_reg2 = *args++;
else
- data_reg2 = 0; /* surpress warning */
+ data_reg2 = 0; /* suppress warning */
addr_reg = *args++;
#ifdef CONFIG_SOFTMMU
# if TARGET_LONG_BITS == 64
* add r0, env, r0 lsl #CPU_TLB_ENTRY_BITS
*/
tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- 8, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
+ TCG_REG_R8, 0, addr_reg, SHIFT_IMM_LSR(TARGET_PAGE_BITS));
tcg_out_dat_imm(s, COND_AL, ARITH_AND,
- 0, 8, CPU_TLB_SIZE - 1);
- tcg_out_dat_reg(s, COND_AL, ARITH_ADD,
- 0, TCG_AREG0, 0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
+ TCG_REG_R0, TCG_REG_R8, CPU_TLB_SIZE - 1);
+ tcg_out_dat_reg(s, COND_AL, ARITH_ADD, TCG_REG_R0,
+ TCG_AREG0, TCG_REG_R0, SHIFT_IMM_LSL(CPU_TLB_ENTRY_BITS));
/* In the
* ldr r1 [r0, #(offsetof(CPUState, tlb_table[mem_index][0].addr_write))]
* below, the offset is likely to exceed 12 bits if mem_index != 0 and
* before.
*/
if (mem_index)
- tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 0, 0,
+ tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R0, TCG_REG_R0,
(mem_index << (TLB_SHIFT & 1)) |
((16 - (TLB_SHIFT >> 1)) << 8));
- tcg_out_ld32_12(s, COND_AL, 1, 0,
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_R1, TCG_REG_R0,
offsetof(CPUState, tlb_table[0][0].addr_write));
- tcg_out_dat_reg(s, COND_AL, ARITH_CMP,
- 0, 1, 8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
+ tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0, TCG_REG_R1,
+ TCG_REG_R8, SHIFT_IMM_LSL(TARGET_PAGE_BITS));
/* Check alignment. */
if (s_bits)
tcg_out_dat_imm(s, COND_EQ, ARITH_TST,
# if TARGET_LONG_BITS == 64
/* XXX: possibly we could use a block data load or writeback in
* the first access. */
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
- offsetof(CPUState, tlb_table[0][0].addr_write)
- + 4);
- tcg_out_dat_reg(s, COND_EQ, ARITH_CMP,
- 0, 1, addr_reg2, SHIFT_IMM_LSL(0));
+ tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
+ offsetof(CPUState, tlb_table[0][0].addr_write) + 4);
+ tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
+ TCG_REG_R1, addr_reg2, SHIFT_IMM_LSL(0));
# endif
- tcg_out_ld32_12(s, COND_EQ, 1, 0,
+ tcg_out_ld32_12(s, COND_EQ, TCG_REG_R1, TCG_REG_R0,
offsetof(CPUState, tlb_table[0][0].addend));
switch (opc) {
case 0:
- tcg_out_st8_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 0 | 4:
- tcg_out_st8s_r(s, COND_EQ, data_reg, addr_reg, 1);
+ tcg_out_st8_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
break;
case 1:
- tcg_out_st16u_r(s, COND_EQ, data_reg, addr_reg, 1);
- break;
- case 1 | 4:
- tcg_out_st16s_r(s, COND_EQ, data_reg, addr_reg, 1);
+ if (bswap) {
+ tcg_out_bswap16(s, COND_EQ, TCG_REG_R0, data_reg);
+ tcg_out_st16_r(s, COND_EQ, TCG_REG_R0, addr_reg, TCG_REG_R1);
+ } else {
+ tcg_out_st16_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
+ }
break;
case 2:
default:
- tcg_out_st32_r(s, COND_EQ, data_reg, addr_reg, 1);
+ if (bswap) {
+ tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg);
+ tcg_out_st32_r(s, COND_EQ, TCG_REG_R0, addr_reg, TCG_REG_R1);
+ } else {
+ tcg_out_st32_r(s, COND_EQ, data_reg, addr_reg, TCG_REG_R1);
+ }
break;
case 3:
- tcg_out_st32_rwb(s, COND_EQ, data_reg, 1, addr_reg);
- tcg_out_st32_12(s, COND_EQ, data_reg2, 1, 4);
+ if (bswap) {
+ tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg2);
+ tcg_out_st32_rwb(s, COND_EQ, TCG_REG_R0, TCG_REG_R1, addr_reg);
+ tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg);
+ tcg_out_st32_12(s, COND_EQ, data_reg, TCG_REG_R1, 4);
+ } else {
+ tcg_out_st32_rwb(s, COND_EQ, data_reg, TCG_REG_R1, addr_reg);
+ tcg_out_st32_12(s, COND_EQ, data_reg2, TCG_REG_R1, 4);
+ }
break;
}
tcg_out_b(s, COND_EQ, 8);
/* TODO: move this code to where the constants pool will be */
- if (addr_reg)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 0, 0, addr_reg, SHIFT_IMM_LSL(0));
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R0, 0, addr_reg, SHIFT_IMM_LSL(0));
# if TARGET_LONG_BITS == 32
switch (opc) {
case 0:
- tcg_out_dat_imm(s, cond, ARITH_AND, 1, data_reg, 0xff);
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
+ tcg_out_ext8u(s, COND_AL, TCG_REG_R1, data_reg);
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
break;
case 1:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, data_reg, SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, 1, SHIFT_IMM_LSR(16));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
+ tcg_out_ext16u(s, COND_AL, TCG_REG_R1, data_reg);
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
break;
case 2:
- if (data_reg != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, data_reg, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 2, 0, mem_index);
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R1, 0, data_reg, SHIFT_IMM_LSL(0));
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index);
break;
case 3:
- if (data_reg != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, data_reg, SHIFT_IMM_LSL(0));
- if (data_reg2 != 2)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg2, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R8, 0, mem_index);
+ tcg_out32(s, (COND_AL << 28) | 0x052d8010); /* str r8, [sp, #-0x10]! */
+ if (data_reg != TCG_REG_R2) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R2, 0, data_reg, SHIFT_IMM_LSL(0));
+ }
+ if (data_reg2 != TCG_REG_R3) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R3, 0, data_reg2, SHIFT_IMM_LSL(0));
+ }
break;
}
# else
- if (addr_reg2 != 1)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 1, 0, addr_reg2, SHIFT_IMM_LSL(0));
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0));
switch (opc) {
case 0:
- tcg_out_dat_imm(s, cond, ARITH_AND, 2, data_reg, 0xff);
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
+ tcg_out_ext8u(s, COND_AL, TCG_REG_R2, data_reg);
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R3, 0, mem_index);
break;
case 1:
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg, SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, 2, SHIFT_IMM_LSR(16));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
+ tcg_out_ext16u(s, COND_AL, TCG_REG_R2, data_reg);
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R3, 0, mem_index);
break;
case 2:
- if (data_reg != 2)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg, SHIFT_IMM_LSL(0));
- tcg_out_dat_imm(s, cond, ARITH_MOV, 3, 0, mem_index);
+ if (data_reg != TCG_REG_R2) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R2, 0, data_reg, SHIFT_IMM_LSL(0));
+ }
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R3, 0, mem_index);
break;
case 3:
- tcg_out_dat_imm(s, cond, ARITH_MOV, 8, 0, mem_index);
- tcg_out32(s, (cond << 28) | 0x052d8010); /* str r8, [sp, #-0x10]! */
- if (data_reg != 2)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 2, 0, data_reg, SHIFT_IMM_LSL(0));
- if (data_reg2 != 3)
- tcg_out_dat_reg(s, cond, ARITH_MOV,
- 3, 0, data_reg2, SHIFT_IMM_LSL(0));
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R8, 0, mem_index);
+ tcg_out32(s, (COND_AL << 28) | 0x052d8010); /* str r8, [sp, #-0x10]! */
+ if (data_reg != TCG_REG_R2) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R2, 0, data_reg, SHIFT_IMM_LSL(0));
+ }
+ if (data_reg2 != TCG_REG_R3) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
+ TCG_REG_R3, 0, data_reg2, SHIFT_IMM_LSL(0));
+ }
break;
}
# endif
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 8, 0, 14, SHIFT_IMM_LSL(0));
-# endif
-
- tcg_out_bl(s, cond, (tcg_target_long) qemu_st_helpers[s_bits] -
+ tcg_out_bl(s, COND_AL, (tcg_target_long) qemu_st_helpers[s_bits] -
(tcg_target_long) s->code_ptr);
-# if TARGET_LONG_BITS == 64
if (opc == 3)
- tcg_out_dat_imm(s, cond, ARITH_ADD, 13, 13, 0x10);
-# endif
-
-# ifdef SAVE_LR
- tcg_out_dat_reg(s, cond, ARITH_MOV, 14, 0, 8, SHIFT_IMM_LSL(0));
-# endif
+ tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R13, TCG_REG_R13, 0x10);
*label_ptr += ((void *) s->code_ptr - (void *) label_ptr - 8) >> 2;
#else /* !CONFIG_SOFTMMU */
i = ctz32(offset) & ~1;
rot = ((32 - i) << 7) & 0xf00;
- tcg_out_dat_imm(s, COND_AL, ARITH_ADD, 8, addr_reg,
+ tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R1, addr_reg,
((offset >> i) & 0xff) | rot);
- addr_reg = 8;
+ addr_reg = TCG_REG_R1;
offset &= ~(0xff << i);
}
}
case 0:
tcg_out_st8_12(s, COND_AL, data_reg, addr_reg, 0);
break;
- case 0 | 4:
- tcg_out_st8s_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
case 1:
- tcg_out_st16u_8(s, COND_AL, data_reg, addr_reg, 0);
- break;
- case 1 | 4:
- tcg_out_st16s_8(s, COND_AL, data_reg, addr_reg, 0);
+ if (bswap) {
+ tcg_out_bswap16(s, COND_AL, TCG_REG_R0, data_reg);
+ tcg_out_st16_8(s, COND_AL, TCG_REG_R0, addr_reg, 0);
+ } else {
+ tcg_out_st16_8(s, COND_AL, data_reg, addr_reg, 0);
+ }
break;
case 2:
default:
- tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
+ if (bswap) {
+ tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg);
+ tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 0);
+ } else {
+ tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
+ }
break;
case 3:
/* TODO: use block store -
* check that data_reg2 > data_reg or the other way */
- tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
- tcg_out_st32_12(s, COND_AL, data_reg2, addr_reg, 4);
+ if (bswap) {
+ tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg2);
+ tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 0);
+ tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg);
+ tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 4);
+ } else {
+ tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0);
+ tcg_out_st32_12(s, COND_AL, data_reg2, addr_reg, 4);
+ }
break;
}
#endif
static uint8_t *tb_ret_addr;
-static inline void tcg_out_op(TCGContext *s, int opc,
+static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
const TCGArg *args, const int *const_args)
{
int c;
switch (opc) {
case INDEX_op_exit_tb:
-#ifdef SAVE_LR
- if (args[0] >> 8)
- tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, 15, 0);
- else
- tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R0, 0, args[0]);
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV, 15, 0, 14, SHIFT_IMM_LSL(0));
- if (args[0] >> 8)
- tcg_out32(s, args[0]);
-#else
{
uint8_t *ld_ptr = s->code_ptr;
if (args[0] >> 8)
- tcg_out_ld32_12(s, COND_AL, 0, 15, 0);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, TCG_REG_PC, 0);
else
- tcg_out_dat_imm(s, COND_AL, ARITH_MOV, 0, 0, args[0]);
+ tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R0, 0, args[0]);
tcg_out_goto(s, COND_AL, (tcg_target_ulong) tb_ret_addr);
if (args[0] >> 8) {
*ld_ptr = (uint8_t) (s->code_ptr - ld_ptr) - 8;
tcg_out32(s, args[0]);
}
}
-#endif
break;
case INDEX_op_goto_tb:
if (s->tb_jmp_offset) {
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
tcg_out_b(s, COND_AL, 8);
#else
- tcg_out_ld32_12(s, COND_AL, 15, 15, -4);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, -4);
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
tcg_out32(s, 0);
#endif
if (c > 0xfff || c < -0xfff) {
tcg_out_movi32(s, COND_AL, TCG_REG_R0,
(tcg_target_long) (s->tb_next + args[0]));
- tcg_out_ld32_12(s, COND_AL, 15, TCG_REG_R0, 0);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_R0, 0);
} else
- tcg_out_ld32_12(s, COND_AL, 15, 15, c);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_PC, c);
#else
- tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, 15, 0);
- tcg_out_ld32_12(s, COND_AL, 15, TCG_REG_R0, 0);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_R0, TCG_REG_PC, 0);
+ tcg_out_ld32_12(s, COND_AL, TCG_REG_PC, TCG_REG_R0, 0);
tcg_out32(s, (tcg_target_long) (s->tb_next + args[0]));
#endif
}
tcg_out_ld32u(s, COND_AL, args[0], args[1], args[2]);
break;
case INDEX_op_st8_i32:
- tcg_out_st8u(s, COND_AL, args[0], args[1], args[2]);
+ tcg_out_st8(s, COND_AL, args[0], args[1], args[2]);
break;
case INDEX_op_st16_i32:
- tcg_out_st16u(s, COND_AL, args[0], args[1], args[2]);
+ tcg_out_st16(s, COND_AL, args[0], args[1], args[2]);
break;
case INDEX_op_st_i32:
tcg_out_st32(s, COND_AL, args[0], args[1], args[2]);
case INDEX_op_and_i32:
c = ARITH_AND;
goto gen_arith;
+ case INDEX_op_andc_i32:
+ c = ARITH_BIC;
+ goto gen_arith;
case INDEX_op_or_i32:
c = ARITH_ORR;
goto gen_arith;
c = ARITH_EOR;
/* Fall through. */
gen_arith:
- if (const_args[2])
+ if (const_args[2]) {
+ int rot;
+ rot = encode_imm(args[2]);
tcg_out_dat_imm(s, COND_AL, c,
- args[0], args[1], args[2]);
- else
+ args[0], args[1], rotl(args[2], rot) | (rot << 7));
+ } else
tcg_out_dat_reg(s, COND_AL, c,
args[0], args[1], args[2], SHIFT_IMM_LSL(0));
break;
case INDEX_op_mulu2_i32:
tcg_out_umull32(s, COND_AL, args[0], args[1], args[2], args[3]);
break;
- case INDEX_op_div2_i32:
- tcg_out_div_helper(s, COND_AL, args,
- tcg_helper_div_i64, tcg_helper_rem_i64,
- SHIFT_IMM_ASR(31));
- break;
- case INDEX_op_divu2_i32:
- tcg_out_div_helper(s, COND_AL, args,
- tcg_helper_divu_i64, tcg_helper_remu_i64,
- SHIFT_IMM_LSR(31));
- break;
/* XXX: Perhaps args[2] & 0x1f is wrong */
case INDEX_op_shl_i32:
c = const_args[2] ?
case INDEX_op_sar_i32:
c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_ASR(args[2] & 0x1f) :
SHIFT_IMM_LSL(0) : SHIFT_REG_ASR(args[2]);
+ goto gen_shift32;
+ case INDEX_op_rotr_i32:
+ c = const_args[2] ? (args[2] & 0x1f) ? SHIFT_IMM_ROR(args[2] & 0x1f) :
+ SHIFT_IMM_LSL(0) : SHIFT_REG_ROR(args[2]);
/* Fall through. */
gen_shift32:
tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1], c);
break;
+ case INDEX_op_rotl_i32:
+ if (const_args[2]) {
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1],
+ ((0x20 - args[2]) & 0x1f) ?
+ SHIFT_IMM_ROR((0x20 - args[2]) & 0x1f) :
+ SHIFT_IMM_LSL(0));
+ } else {
+ tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_R8, args[1], 0x20);
+ tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1],
+ SHIFT_REG_ROR(TCG_REG_R8));
+ }
+ break;
+
case INDEX_op_brcond_i32:
- tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
- args[0], args[1], SHIFT_IMM_LSL(0));
+ if (const_args[1]) {
+ int rot;
+ rot = encode_imm(args[1]);
+ tcg_out_dat_imm(s, COND_AL, ARITH_CMP, 0,
+ args[0], rotl(args[1], rot) | (rot << 7));
+ } else {
+ tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
+ args[0], args[1], SHIFT_IMM_LSL(0));
+ }
tcg_out_goto_label(s, tcg_cond_to_arm_cond[args[2]], args[3]);
break;
case INDEX_op_brcond2_i32:
args[0], args[2], SHIFT_IMM_LSL(0));
tcg_out_goto_label(s, tcg_cond_to_arm_cond[args[4]], args[5]);
break;
+ case INDEX_op_setcond_i32:
+ if (const_args[2]) {
+ int rot;
+ rot = encode_imm(args[2]);
+ tcg_out_dat_imm(s, COND_AL, ARITH_CMP, 0,
+ args[1], rotl(args[2], rot) | (rot << 7));
+ } else {
+ tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
+ args[1], args[2], SHIFT_IMM_LSL(0));
+ }
+ tcg_out_dat_imm(s, tcg_cond_to_arm_cond[args[3]],
+ ARITH_MOV, args[0], 0, 1);
+ tcg_out_dat_imm(s, tcg_cond_to_arm_cond[tcg_invert_cond(args[3])],
+ ARITH_MOV, args[0], 0, 0);
+ break;
+ case INDEX_op_setcond2_i32:
+ /* See brcond2_i32 comment */
+ tcg_out_dat_reg(s, COND_AL, ARITH_CMP, 0,
+ args[2], args[4], SHIFT_IMM_LSL(0));
+ tcg_out_dat_reg(s, COND_EQ, ARITH_CMP, 0,
+ args[1], args[3], SHIFT_IMM_LSL(0));
+ tcg_out_dat_imm(s, tcg_cond_to_arm_cond[args[5]],
+ ARITH_MOV, args[0], 0, 1);
+ tcg_out_dat_imm(s, tcg_cond_to_arm_cond[tcg_invert_cond(args[5])],
+ ARITH_MOV, args[0], 0, 0);
+ break;
case INDEX_op_qemu_ld8u:
- tcg_out_qemu_ld(s, COND_AL, args, 0);
+ tcg_out_qemu_ld(s, args, 0);
break;
case INDEX_op_qemu_ld8s:
- tcg_out_qemu_ld(s, COND_AL, args, 0 | 4);
+ tcg_out_qemu_ld(s, args, 0 | 4);
break;
case INDEX_op_qemu_ld16u:
- tcg_out_qemu_ld(s, COND_AL, args, 1);
+ tcg_out_qemu_ld(s, args, 1);
break;
case INDEX_op_qemu_ld16s:
- tcg_out_qemu_ld(s, COND_AL, args, 1 | 4);
+ tcg_out_qemu_ld(s, args, 1 | 4);
break;
- case INDEX_op_qemu_ld32u:
- tcg_out_qemu_ld(s, COND_AL, args, 2);
+ case INDEX_op_qemu_ld32:
+ tcg_out_qemu_ld(s, args, 2);
break;
case INDEX_op_qemu_ld64:
- tcg_out_qemu_ld(s, COND_AL, args, 3);
+ tcg_out_qemu_ld(s, args, 3);
break;
case INDEX_op_qemu_st8:
- tcg_out_qemu_st(s, COND_AL, args, 0);
+ tcg_out_qemu_st(s, args, 0);
break;
case INDEX_op_qemu_st16:
- tcg_out_qemu_st(s, COND_AL, args, 1);
+ tcg_out_qemu_st(s, args, 1);
break;
case INDEX_op_qemu_st32:
- tcg_out_qemu_st(s, COND_AL, args, 2);
+ tcg_out_qemu_st(s, args, 2);
break;
case INDEX_op_qemu_st64:
- tcg_out_qemu_st(s, COND_AL, args, 3);
+ tcg_out_qemu_st(s, args, 3);
+ break;
+
+ case INDEX_op_bswap16_i32:
+ tcg_out_bswap16(s, COND_AL, args[0], args[1]);
+ break;
+ case INDEX_op_bswap32_i32:
+ tcg_out_bswap32(s, COND_AL, args[0], args[1]);
break;
case INDEX_op_ext8s_i32:
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[1], SHIFT_IMM_LSL(24));
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[0], SHIFT_IMM_ASR(24));
+ tcg_out_ext8s(s, COND_AL, args[0], args[1]);
break;
case INDEX_op_ext16s_i32:
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[1], SHIFT_IMM_LSL(16));
- tcg_out_dat_reg(s, COND_AL, ARITH_MOV,
- args[0], 0, args[0], SHIFT_IMM_ASR(16));
+ tcg_out_ext16s(s, COND_AL, args[0], args[1]);
+ break;
+ case INDEX_op_ext16u_i32:
+ tcg_out_ext16u(s, COND_AL, args[0], args[1]);
break;
default:
{ INDEX_op_sub_i32, { "r", "r", "rI" } },
{ INDEX_op_mul_i32, { "r", "r", "r" } },
{ INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
- { INDEX_op_div2_i32, { "r", "r", "r", "1", "2" } },
- { INDEX_op_divu2_i32, { "r", "r", "r", "1", "2" } },
{ INDEX_op_and_i32, { "r", "r", "rI" } },
+ { INDEX_op_andc_i32, { "r", "r", "rI" } },
{ INDEX_op_or_i32, { "r", "r", "rI" } },
{ INDEX_op_xor_i32, { "r", "r", "rI" } },
{ INDEX_op_neg_i32, { "r", "r" } },
{ INDEX_op_shl_i32, { "r", "r", "ri" } },
{ INDEX_op_shr_i32, { "r", "r", "ri" } },
{ INDEX_op_sar_i32, { "r", "r", "ri" } },
+ { INDEX_op_rotl_i32, { "r", "r", "ri" } },
+ { INDEX_op_rotr_i32, { "r", "r", "ri" } },
- { INDEX_op_brcond_i32, { "r", "r" } },
+ { INDEX_op_brcond_i32, { "r", "rI" } },
+ { INDEX_op_setcond_i32, { "r", "r", "rI" } },
/* TODO: "r", "r", "r", "r", "ri", "ri" */
{ INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } },
{ INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } },
{ INDEX_op_brcond2_i32, { "r", "r", "r", "r" } },
+ { INDEX_op_setcond2_i32, { "r", "r", "r", "r", "r" } },
+
+#if TARGET_LONG_BITS == 32
+ { INDEX_op_qemu_ld8u, { "r", "l" } },
+ { INDEX_op_qemu_ld8s, { "r", "l" } },
+ { INDEX_op_qemu_ld16u, { "r", "l" } },
+ { INDEX_op_qemu_ld16s, { "r", "l" } },
+ { INDEX_op_qemu_ld32, { "r", "l" } },
+ { INDEX_op_qemu_ld64, { "L", "L", "l" } },
+
+ { INDEX_op_qemu_st8, { "s", "s" } },
+ { INDEX_op_qemu_st16, { "s", "s" } },
+ { INDEX_op_qemu_st32, { "s", "s" } },
+ { INDEX_op_qemu_st64, { "S", "S", "s" } },
+#else
+ { INDEX_op_qemu_ld8u, { "r", "l", "l" } },
+ { INDEX_op_qemu_ld8s, { "r", "l", "l" } },
+ { INDEX_op_qemu_ld16u, { "r", "l", "l" } },
+ { INDEX_op_qemu_ld16s, { "r", "l", "l" } },
+ { INDEX_op_qemu_ld32, { "r", "l", "l" } },
+ { INDEX_op_qemu_ld64, { "L", "L", "l", "l" } },
+
+ { INDEX_op_qemu_st8, { "s", "s", "s" } },
+ { INDEX_op_qemu_st16, { "s", "s", "s" } },
+ { INDEX_op_qemu_st32, { "s", "s", "s" } },
+ { INDEX_op_qemu_st64, { "S", "S", "s", "s" } },
+#endif
- { INDEX_op_qemu_ld8u, { "r", "x", "X" } },
- { INDEX_op_qemu_ld8s, { "r", "x", "X" } },
- { INDEX_op_qemu_ld16u, { "r", "x", "X" } },
- { INDEX_op_qemu_ld16s, { "r", "x", "X" } },
- { INDEX_op_qemu_ld32u, { "r", "x", "X" } },
- { INDEX_op_qemu_ld64, { "d", "r", "x", "X" } },
-
- { INDEX_op_qemu_st8, { "x", "x", "X" } },
- { INDEX_op_qemu_st16, { "x", "x", "X" } },
- { INDEX_op_qemu_st32, { "x", "x", "X" } },
- { INDEX_op_qemu_st64, { "x", "D", "x", "X" } },
+ { INDEX_op_bswap16_i32, { "r", "r" } },
+ { INDEX_op_bswap32_i32, { "r", "r" } },
{ INDEX_op_ext8s_i32, { "r", "r" } },
{ INDEX_op_ext16s_i32, { "r", "r" } },
+ { INDEX_op_ext16u_i32, { "r", "r" } },
{ -1 },
};
void tcg_target_init(TCGContext *s)
{
+#if !defined(CONFIG_USER_ONLY)
/* fail safe */
if ((1 << CPU_TLB_ENTRY_BITS) != sizeof(CPUTLBEntry))
tcg_abort();
+#endif
- tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0,
- ((2 << TCG_REG_R14) - 1) & ~(1 << TCG_REG_R8));
+ tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff);
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
- ((2 << TCG_REG_R3) - 1) |
- (1 << TCG_REG_R12) | (1 << TCG_REG_R14));
+ (1 << TCG_REG_R0) |
+ (1 << TCG_REG_R1) |
+ (1 << TCG_REG_R2) |
+ (1 << TCG_REG_R3) |
+ (1 << TCG_REG_R12) |
+ (1 << TCG_REG_R14));
tcg_regset_clear(s->reserved_regs);
-#ifdef SAVE_LR
- tcg_regset_set_reg(s->reserved_regs, TCG_REG_R14);
-#endif
tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R8);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_PC);
tcg_add_target_add_op_defs(arm_op_defs);
}
void tcg_target_qemu_prologue(TCGContext *s)
{
- /* stmdb sp!, { r9 - r11, lr } */
- tcg_out32(s, (COND_AL << 28) | 0x092d4e00);
+ /* There is no need to save r7, it is used to store the address
+ of the env structure and is not modified by GCC. */
+
+ /* stmdb sp!, { r4 - r6, r8 - r11, lr } */
+ tcg_out32(s, (COND_AL << 28) | 0x092d4f70);
tcg_out_bx(s, COND_AL, TCG_REG_R0);
tb_ret_addr = s->code_ptr;
- /* ldmia sp!, { r9 - r11, pc } */
- tcg_out32(s, (COND_AL << 28) | 0x08bd8e00);
+ /* ldmia sp!, { r4 - r6, r8 - r11, pc } */
+ tcg_out32(s, (COND_AL << 28) | 0x08bd8f70);
}
projects / qemu.git / blobdiff