/*
* ARM micro operations
- *
+ *
* Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2005-2007 CodeSourcery, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#define REGNAME r15
#define REG (env->regs[15])
+#define SET_REG(x) REG = x & ~(uint32_t)1
#include "op_template.h"
+void OPPROTO op_bx_T0(void)
+{
+ env->regs[15] = T0 & ~(uint32_t)1;
+ env->thumb = (T0 & 1) != 0;
+}
+
void OPPROTO op_movl_T0_0(void)
{
T0 = 0;
T1 = PARAM1;
}
+void OPPROTO op_mov_CF_T1(void)
+{
+ env->CF = ((uint32_t)T1) >> 31;
+}
+
void OPPROTO op_movl_T2_im(void)
{
T2 = PARAM1;
src1 = T0; \
if (!env->CF) { \
T0 = T0 - T1 - 1; \
- env->CF = src1 >= T1; \
+ env->CF = src1 > T1; \
} else { \
T0 = T0 - T1; \
- env->CF = src1 > T1; \
+ env->CF = src1 >= T1; \
} \
env->VF = (src1 ^ T1) & (src1 ^ T0); \
env->NZF = T0; \
T0 &= ~T1;
}
+void OPPROTO op_notl_T0(void)
+{
+ T0 = ~T0;
+}
+
void OPPROTO op_notl_T1(void)
{
T1 = ~T1;
void OPPROTO op_test_eq(void)
{
if (env->NZF == 0)
- JUMP_TB(op_test_eq, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);;
FORCE_RET();
}
void OPPROTO op_test_ne(void)
{
if (env->NZF != 0)
- JUMP_TB(op_test_ne, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);;
FORCE_RET();
}
void OPPROTO op_test_cs(void)
{
if (env->CF != 0)
- JUMP_TB(op_test_cs, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_cc(void)
{
if (env->CF == 0)
- JUMP_TB(op_test_cc, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_mi(void)
{
if ((env->NZF & 0x80000000) != 0)
- JUMP_TB(op_test_mi, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_pl(void)
{
if ((env->NZF & 0x80000000) == 0)
- JUMP_TB(op_test_pl, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_vs(void)
{
if ((env->VF & 0x80000000) != 0)
- JUMP_TB(op_test_vs, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_vc(void)
{
if ((env->VF & 0x80000000) == 0)
- JUMP_TB(op_test_vc, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_hi(void)
{
if (env->CF != 0 && env->NZF != 0)
- JUMP_TB(op_test_hi, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_ls(void)
{
if (env->CF == 0 || env->NZF == 0)
- JUMP_TB(op_test_ls, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_ge(void)
{
if (((env->VF ^ env->NZF) & 0x80000000) == 0)
- JUMP_TB(op_test_ge, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_lt(void)
{
if (((env->VF ^ env->NZF) & 0x80000000) != 0)
- JUMP_TB(op_test_lt, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_gt(void)
{
if (env->NZF != 0 && ((env->VF ^ env->NZF) & 0x80000000) == 0)
- JUMP_TB(op_test_gt, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO op_test_le(void)
{
if (env->NZF == 0 || ((env->VF ^ env->NZF) & 0x80000000) != 0)
- JUMP_TB(op_test_le, PARAM1, 0, PARAM2);
+ GOTO_LABEL_PARAM(1);
+ FORCE_RET();
+}
+
+void OPPROTO op_test_T0(void)
+{
+ if (T0)
+ GOTO_LABEL_PARAM(1);
+ FORCE_RET();
+}
+void OPPROTO op_testn_T0(void)
+{
+ if (!T0)
+ GOTO_LABEL_PARAM(1);
FORCE_RET();
}
-void OPPROTO op_jmp(void)
+void OPPROTO op_movl_T0_cpsr(void)
{
- JUMP_TB(op_jmp, PARAM1, 1, PARAM2);
+ /* Execution state bits always read as zero. */
+ T0 = cpsr_read(env) & ~CPSR_EXEC;
+ FORCE_RET();
}
-void OPPROTO op_exit_tb(void)
+void OPPROTO op_movl_T0_spsr(void)
{
- EXIT_TB();
+ T0 = env->spsr;
}
-void OPPROTO op_movl_T0_psr(void)
+void OPPROTO op_movl_spsr_T0(void)
{
- T0 = compute_cpsr();
+ uint32_t mask = PARAM1;
+ env->spsr = (env->spsr & ~mask) | (T0 & mask);
}
-/* NOTE: N = 1 and Z = 1 cannot be stored currently */
-void OPPROTO op_movl_psr_T0(void)
+void OPPROTO op_movl_cpsr_T0(void)
{
- unsigned int psr;
- psr = T0;
- env->CF = (psr >> 29) & 1;
- env->NZF = (psr & 0xc0000000) ^ 0x40000000;
- env->VF = (psr << 3) & 0x80000000;
- /* for user mode we do not update other state info */
+ cpsr_write(env, T0, PARAM1);
+ FORCE_RET();
}
void OPPROTO op_mul_T0_T1(void)
void OPPROTO op_mull_T0_T1(void)
{
uint64_t res;
- res = T0 * T1;
+ res = (uint64_t)T0 * (uint64_t)T1;
T1 = res >> 32;
T0 = res;
}
void OPPROTO op_imull_T0_T1(void)
{
uint64_t res;
- res = (int32_t)T0 * (int32_t)T1;
+ res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
T1 = res >> 32;
T0 = res;
}
+/* 48 bit signed mul, top 32 bits */
+void OPPROTO op_imulw_T0_T1(void)
+{
+ uint64_t res;
+ res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
+ T0 = res >> 16;
+}
+
void OPPROTO op_addq_T0_T1(void)
{
uint64_t res;
T0 = res;
}
-void OPPROTO op_logicq_cc(void)
-{
- env->NZF = (T1 & 0x80000000) | ((T0 | T1) != 0);
-}
-
-/* memory access */
-
-void OPPROTO op_ldub_T0_T1(void)
-{
- T0 = ldub((void *)T1);
-}
-
-void OPPROTO op_ldsb_T0_T1(void)
+void OPPROTO op_addq_lo_T0_T1(void)
{
- T0 = ldsb((void *)T1);
+ uint64_t res;
+ res = ((uint64_t)T1 << 32) | T0;
+ res += (uint64_t)(env->regs[PARAM1]);
+ T1 = res >> 32;
+ T0 = res;
}
-void OPPROTO op_lduw_T0_T1(void)
+/* Dual 16-bit accumulate. */
+void OPPROTO op_addq_T0_T1_dual(void)
{
- T0 = lduw((void *)T1);
+ uint64_t res;
+ res = ((uint64_t)(env->regs[PARAM2]) << 32) | (env->regs[PARAM1]);
+ res += (int32_t)T0;
+ res += (int32_t)T1;
+ env->regs[PARAM1] = (uint32_t)res;
+ env->regs[PARAM2] = res >> 32;
}
-void OPPROTO op_ldsw_T0_T1(void)
+/* Dual 16-bit subtract accumulate. */
+void OPPROTO op_subq_T0_T1_dual(void)
{
- T0 = ldsw((void *)T1);
+ uint64_t res;
+ res = ((uint64_t)(env->regs[PARAM2]) << 32) | (env->regs[PARAM1]);
+ res += (int32_t)T0;
+ res -= (int32_t)T1;
+ env->regs[PARAM1] = (uint32_t)res;
+ env->regs[PARAM2] = res >> 32;
}
-void OPPROTO op_ldl_T0_T1(void)
+void OPPROTO op_logicq_cc(void)
{
- T0 = ldl((void *)T1);
+ env->NZF = (T1 & 0x80000000) | ((T0 | T1) != 0);
}
-void OPPROTO op_stb_T0_T1(void)
-{
- stb((void *)T1, T0);
-}
+/* memory access */
-void OPPROTO op_stw_T0_T1(void)
-{
- stw((void *)T1, T0);
-}
+#define MEMSUFFIX _raw
+#include "op_mem.h"
-void OPPROTO op_stl_T0_T1(void)
-{
- stl((void *)T1, T0);
-}
+#if !defined(CONFIG_USER_ONLY)
+#define MEMSUFFIX _user
+#include "op_mem.h"
+#define MEMSUFFIX _kernel
+#include "op_mem.h"
+#endif
-void OPPROTO op_swpb_T0_T1(void)
+void OPPROTO op_clrex(void)
{
- int tmp;
-
cpu_lock();
- tmp = ldub((void *)T1);
- stb((void *)T1, T0);
- T0 = tmp;
+ helper_clrex(env);
cpu_unlock();
}
-void OPPROTO op_swpl_T0_T1(void)
-{
- int tmp;
+/* shifts */
- cpu_lock();
- tmp = ldl((void *)T1);
- stl((void *)T1, T0);
- T0 = tmp;
- cpu_unlock();
+/* Used by NEON. */
+void OPPROTO op_shll_T0_im(void)
+{
+ T1 = T1 << PARAM1;
}
-/* shifts */
-
/* T1 based */
+
void OPPROTO op_shll_T1_im(void)
{
T1 = T1 << PARAM1;
T1 = (uint32_t)T1 >> PARAM1;
}
+void OPPROTO op_shrl_T1_0(void)
+{
+ T1 = 0;
+}
+
void OPPROTO op_sarl_T1_im(void)
{
T1 = (int32_t)T1 >> PARAM1;
}
+void OPPROTO op_sarl_T1_0(void)
+{
+ T1 = (int32_t)T1 >> 31;
+}
+
void OPPROTO op_rorl_T1_im(void)
{
int shift;
T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
}
+void OPPROTO op_rrxl_T1(void)
+{
+ T1 = ((uint32_t)T1 >> 1) | ((uint32_t)env->CF << 31);
+}
+
/* T1 based, set C flag */
void OPPROTO op_shll_T1_im_cc(void)
{
T1 = (uint32_t)T1 >> PARAM1;
}
+void OPPROTO op_shrl_T1_0_cc(void)
+{
+ env->CF = (T1 >> 31) & 1;
+ T1 = 0;
+}
+
void OPPROTO op_sarl_T1_im_cc(void)
{
env->CF = (T1 >> (PARAM1 - 1)) & 1;
T1 = (int32_t)T1 >> PARAM1;
}
+void OPPROTO op_sarl_T1_0_cc(void)
+{
+ env->CF = (T1 >> 31) & 1;
+ T1 = (int32_t)T1 >> 31;
+}
+
void OPPROTO op_rorl_T1_im_cc(void)
{
int shift;
T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
}
+void OPPROTO op_rrxl_T1_cc(void)
+{
+ uint32_t c;
+ c = T1 & 1;
+ T1 = ((uint32_t)T1 >> 1) | ((uint32_t)env->CF << 31);
+ env->CF = c;
+}
+
/* T2 based */
void OPPROTO op_shll_T2_im(void)
{
T2 = (uint32_t)T2 >> PARAM1;
}
+void OPPROTO op_shrl_T2_0(void)
+{
+ T2 = 0;
+}
+
void OPPROTO op_sarl_T2_im(void)
{
T2 = (int32_t)T2 >> PARAM1;
}
+void OPPROTO op_sarl_T2_0(void)
+{
+ T2 = (int32_t)T2 >> 31;
+}
+
void OPPROTO op_rorl_T2_im(void)
{
int shift;
T2 = ((uint32_t)T2 >> shift) | (T2 << (32 - shift));
}
+void OPPROTO op_rrxl_T2(void)
+{
+ T2 = ((uint32_t)T2 >> 1) | ((uint32_t)env->CF << 31);
+}
+
/* T1 based, use T0 as shift count */
void OPPROTO op_shll_T1_T0(void)
if (shift >= 32) {
env->CF = (T1 >> 31) & 1;
T1 = (int32_t)T1 >> 31;
- } else {
+ } else if (shift != 0) {
env->CF = (T1 >> (shift - 1)) & 1;
T1 = (int32_t)T1 >> shift;
}
FORCE_RET();
}
+/* misc */
+void OPPROTO op_clz_T0(void)
+{
+ int count;
+ for (count = 32; T0 > 0; count--)
+ T0 = T0 >> 1;
+ T0 = count;
+ FORCE_RET();
+}
+
+void OPPROTO op_sarl_T0_im(void)
+{
+ T0 = (int32_t)T0 >> PARAM1;
+}
+
+/* Sign/zero extend */
+void OPPROTO op_sxth_T0(void)
+{
+ T0 = (int16_t)T0;
+}
+
+void OPPROTO op_sxth_T1(void)
+{
+ T1 = (int16_t)T1;
+}
+
+void OPPROTO op_sxtb_T1(void)
+{
+ T1 = (int8_t)T1;
+}
+
+void OPPROTO op_uxtb_T1(void)
+{
+ T1 = (uint8_t)T1;
+}
+
+void OPPROTO op_uxth_T1(void)
+{
+ T1 = (uint16_t)T1;
+}
+
+void OPPROTO op_sxtb16_T1(void)
+{
+ uint32_t res;
+ res = (uint16_t)(int8_t)T1;
+ res |= (uint32_t)(int8_t)(T1 >> 16) << 16;
+ T1 = res;
+}
+
+void OPPROTO op_uxtb16_T1(void)
+{
+ uint32_t res;
+ res = (uint16_t)(uint8_t)T1;
+ res |= (uint32_t)(uint8_t)(T1 >> 16) << 16;
+ T1 = res;
+}
+
+#define SIGNBIT (uint32_t)0x80000000
+/* saturating arithmetic */
+void OPPROTO op_addl_T0_T1_setq(void)
+{
+ uint32_t res;
+
+ res = T0 + T1;
+ if (((res ^ T0) & SIGNBIT) && !((T0 ^ T1) & SIGNBIT))
+ env->QF = 1;
+
+ T0 = res;
+ FORCE_RET();
+}
+
+void OPPROTO op_addl_T0_T1_saturate(void)
+{
+ uint32_t res;
+
+ res = T0 + T1;
+ if (((res ^ T0) & SIGNBIT) && !((T0 ^ T1) & SIGNBIT)) {
+ env->QF = 1;
+ if (T0 & SIGNBIT)
+ T0 = 0x80000000;
+ else
+ T0 = 0x7fffffff;
+ }
+ else
+ T0 = res;
+
+ FORCE_RET();
+}
+
+void OPPROTO op_subl_T0_T1_saturate(void)
+{
+ uint32_t res;
+
+ res = T0 - T1;
+ if (((res ^ T0) & SIGNBIT) && ((T0 ^ T1) & SIGNBIT)) {
+ env->QF = 1;
+ if (T0 & SIGNBIT)
+ T0 = 0x80000000;
+ else
+ T0 = 0x7fffffff;
+ }
+ else
+ T0 = res;
+
+ FORCE_RET();
+}
+
+void OPPROTO op_double_T1_saturate(void)
+{
+ int32_t val;
+
+ val = T1;
+ if (val >= 0x40000000) {
+ T1 = 0x7fffffff;
+ env->QF = 1;
+ } else if (val <= (int32_t)0xc0000000) {
+ T1 = 0x80000000;
+ env->QF = 1;
+ } else {
+ T1 = val << 1;
+ }
+ FORCE_RET();
+}
+
+/* Unsigned saturating arithmetic for NEON. */
+void OPPROTO op_addl_T0_T1_usaturate(void)
+{
+ uint32_t res;
+
+ res = T0 + T1;
+ if (res < T0) {
+ env->QF = 1;
+ T0 = 0xffffffff;
+ } else {
+ T0 = res;
+ }
+
+ FORCE_RET();
+}
+
+void OPPROTO op_subl_T0_T1_usaturate(void)
+{
+ uint32_t res;
+
+ res = T0 - T1;
+ if (res > T0) {
+ env->QF = 1;
+ T0 = 0;
+ } else {
+ T0 = res;
+ }
+
+ FORCE_RET();
+}
+
+/* Thumb shift by immediate */
+void OPPROTO op_shll_T0_im_thumb_cc(void)
+{
+ int shift;
+ shift = PARAM1;
+ if (shift != 0) {
+ env->CF = (T0 >> (32 - shift)) & 1;
+ T0 = T0 << shift;
+ }
+ env->NZF = T0;
+ FORCE_RET();
+}
+
+void OPPROTO op_shll_T0_im_thumb(void)
+{
+ T0 = T0 << PARAM1;
+ FORCE_RET();
+}
+
+void OPPROTO op_shrl_T0_im_thumb_cc(void)
+{
+ int shift;
+
+ shift = PARAM1;
+ if (shift == 0) {
+ env->CF = ((uint32_t)T0) >> 31;
+ T0 = 0;
+ } else {
+ env->CF = (T0 >> (shift - 1)) & 1;
+ T0 = T0 >> shift;
+ }
+ env->NZF = T0;
+ FORCE_RET();
+}
+
+void OPPROTO op_shrl_T0_im_thumb(void)
+{
+ int shift;
+
+ shift = PARAM1;
+ if (shift == 0) {
+ T0 = 0;
+ } else {
+ T0 = T0 >> shift;
+ }
+ FORCE_RET();
+}
+
+void OPPROTO op_sarl_T0_im_thumb_cc(void)
+{
+ int shift;
+
+ shift = PARAM1;
+ if (shift == 0) {
+ T0 = ((int32_t)T0) >> 31;
+ env->CF = T0 & 1;
+ } else {
+ env->CF = (T0 >> (shift - 1)) & 1;
+ T0 = ((int32_t)T0) >> shift;
+ }
+ env->NZF = T0;
+ FORCE_RET();
+}
+
+void OPPROTO op_sarl_T0_im_thumb(void)
+{
+ int shift;
+
+ shift = PARAM1;
+ if (shift == 0) {
+ env->CF = T0 & 1;
+ } else {
+ T0 = ((int32_t)T0) >> shift;
+ }
+ FORCE_RET();
+}
+
/* exceptions */
void OPPROTO op_swi(void)
cpu_loop_exit();
}
-/* thread support */
+void OPPROTO op_debug(void)
+{
+ env->exception_index = EXCP_DEBUG;
+ cpu_loop_exit();
+}
+
+void OPPROTO op_wfi(void)
+{
+ env->exception_index = EXCP_HLT;
+ env->halted = 1;
+ cpu_loop_exit();
+}
+
+void OPPROTO op_bkpt(void)
+{
+ env->exception_index = EXCP_BKPT;
+ cpu_loop_exit();
+}
+
+void OPPROTO op_exception_exit(void)
+{
+ env->exception_index = EXCP_EXCEPTION_EXIT;
+ cpu_loop_exit();
+}
+
+/* VFP support. We follow the convention used for VFP instrunctions:
+ Single precition routines have a "s" suffix, double precision a
+ "d" suffix. */
+
+#define VFP_OP(name, p) void OPPROTO op_vfp_##name##p(void)
+
+#define VFP_BINOP(name) \
+VFP_OP(name, s) \
+{ \
+ FT0s = float32_ ## name (FT0s, FT1s, &env->vfp.fp_status); \
+} \
+VFP_OP(name, d) \
+{ \
+ FT0d = float64_ ## name (FT0d, FT1d, &env->vfp.fp_status); \
+}
+VFP_BINOP(add)
+VFP_BINOP(sub)
+VFP_BINOP(mul)
+VFP_BINOP(div)
+#undef VFP_BINOP
+
+#define VFP_HELPER(name) \
+VFP_OP(name, s) \
+{ \
+ do_vfp_##name##s(); \
+} \
+VFP_OP(name, d) \
+{ \
+ do_vfp_##name##d(); \
+}
+VFP_HELPER(abs)
+VFP_HELPER(sqrt)
+VFP_HELPER(cmp)
+VFP_HELPER(cmpe)
+#undef VFP_HELPER
+
+/* XXX: Will this do the right thing for NANs. Should invert the signbit
+ without looking at the rest of the value. */
+VFP_OP(neg, s)
+{
+ FT0s = float32_chs(FT0s);
+}
+
+VFP_OP(neg, d)
+{
+ FT0d = float64_chs(FT0d);
+}
+
+VFP_OP(F1_ld0, s)
+{
+ union {
+ uint32_t i;
+ float32 s;
+ } v;
+ v.i = 0;
+ FT1s = v.s;
+}
+
+VFP_OP(F1_ld0, d)
+{
+ union {
+ uint64_t i;
+ float64 d;
+ } v;
+ v.i = 0;
+ FT1d = v.d;
+}
+
+/* Helper routines to perform bitwise copies between float and int. */
+static inline float32 vfp_itos(uint32_t i)
+{
+ union {
+ uint32_t i;
+ float32 s;
+ } v;
+
+ v.i = i;
+ return v.s;
+}
+
+static inline uint32_t vfp_stoi(float32 s)
+{
+ union {
+ uint32_t i;
+ float32 s;
+ } v;
+
+ v.s = s;
+ return v.i;
+}
+
+static inline float64 vfp_itod(uint64_t i)
+{
+ union {
+ uint64_t i;
+ float64 d;
+ } v;
+
+ v.i = i;
+ return v.d;
+}
+
+static inline uint64_t vfp_dtoi(float64 d)
+{
+ union {
+ uint64_t i;
+ float64 d;
+ } v;
+
+ v.d = d;
+ return v.i;
+}
+
+/* Integer to float conversion. */
+VFP_OP(uito, s)
+{
+ FT0s = uint32_to_float32(vfp_stoi(FT0s), &env->vfp.fp_status);
+}
-spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
+VFP_OP(uito, d)
+{
+ FT0d = uint32_to_float64(vfp_stoi(FT0s), &env->vfp.fp_status);
+}
-void cpu_lock(void)
+VFP_OP(sito, s)
{
- spin_lock(&global_cpu_lock);
+ FT0s = int32_to_float32(vfp_stoi(FT0s), &env->vfp.fp_status);
}
-void cpu_unlock(void)
+VFP_OP(sito, d)
{
- spin_unlock(&global_cpu_lock);
+ FT0d = int32_to_float64(vfp_stoi(FT0s), &env->vfp.fp_status);
}
+/* Float to integer conversion. */
+VFP_OP(toui, s)
+{
+ FT0s = vfp_itos(float32_to_uint32(FT0s, &env->vfp.fp_status));
+}
+
+VFP_OP(toui, d)
+{
+ FT0s = vfp_itos(float64_to_uint32(FT0d, &env->vfp.fp_status));
+}
+
+VFP_OP(tosi, s)
+{
+ FT0s = vfp_itos(float32_to_int32(FT0s, &env->vfp.fp_status));
+}
+
+VFP_OP(tosi, d)
+{
+ FT0s = vfp_itos(float64_to_int32(FT0d, &env->vfp.fp_status));
+}
+
+/* TODO: Set rounding mode properly. */
+VFP_OP(touiz, s)
+{
+ FT0s = vfp_itos(float32_to_uint32_round_to_zero(FT0s, &env->vfp.fp_status));
+}
+
+VFP_OP(touiz, d)
+{
+ FT0s = vfp_itos(float64_to_uint32_round_to_zero(FT0d, &env->vfp.fp_status));
+}
+
+VFP_OP(tosiz, s)
+{
+ FT0s = vfp_itos(float32_to_int32_round_to_zero(FT0s, &env->vfp.fp_status));
+}
+
+VFP_OP(tosiz, d)
+{
+ FT0s = vfp_itos(float64_to_int32_round_to_zero(FT0d, &env->vfp.fp_status));
+}
+
+/* floating point conversion */
+VFP_OP(fcvtd, s)
+{
+ FT0d = float32_to_float64(FT0s, &env->vfp.fp_status);
+}
+
+VFP_OP(fcvts, d)
+{
+ FT0s = float64_to_float32(FT0d, &env->vfp.fp_status);
+}
+
+/* VFP3 fixed point conversion. */
+#define VFP_CONV_FIX(name, p, ftype, itype, sign) \
+VFP_OP(name##to, p) \
+{ \
+ ftype tmp; \
+ tmp = sign##int32_to_##ftype ((itype)vfp_##p##toi(FT0##p), \
+ &env->vfp.fp_status); \
+ FT0##p = ftype##_scalbn(tmp, PARAM1, &env->vfp.fp_status); \
+} \
+VFP_OP(to##name, p) \
+{ \
+ ftype tmp; \
+ tmp = ftype##_scalbn(FT0##p, PARAM1, &env->vfp.fp_status); \
+ FT0##p = vfp_ito##p((itype)ftype##_to_##sign##int32_round_to_zero(tmp, \
+ &env->vfp.fp_status)); \
+}
+
+VFP_CONV_FIX(sh, d, float64, int16, )
+VFP_CONV_FIX(sl, d, float64, int32, )
+VFP_CONV_FIX(uh, d, float64, uint16, u)
+VFP_CONV_FIX(ul, d, float64, uint32, u)
+VFP_CONV_FIX(sh, s, float32, int16, )
+VFP_CONV_FIX(sl, s, float32, int32, )
+VFP_CONV_FIX(uh, s, float32, uint16, u)
+VFP_CONV_FIX(ul, s, float32, uint32, u)
+
+/* Get and Put values from registers. */
+VFP_OP(getreg_F0, d)
+{
+ FT0d = *(float64 *)((char *) env + PARAM1);
+}
+
+VFP_OP(getreg_F0, s)
+{
+ FT0s = *(float32 *)((char *) env + PARAM1);
+}
+
+VFP_OP(getreg_F1, d)
+{
+ FT1d = *(float64 *)((char *) env + PARAM1);
+}
+
+VFP_OP(getreg_F1, s)
+{
+ FT1s = *(float32 *)((char *) env + PARAM1);
+}
+
+VFP_OP(setreg_F0, d)
+{
+ *(float64 *)((char *) env + PARAM1) = FT0d;
+}
+
+VFP_OP(setreg_F0, s)
+{
+ *(float32 *)((char *) env + PARAM1) = FT0s;
+}
+
+void OPPROTO op_vfp_movl_T0_fpscr(void)
+{
+ do_vfp_get_fpscr ();
+}
+
+void OPPROTO op_vfp_movl_T0_fpscr_flags(void)
+{
+ T0 = env->vfp.xregs[ARM_VFP_FPSCR] & (0xf << 28);
+}
+
+void OPPROTO op_vfp_movl_fpscr_T0(void)
+{
+ do_vfp_set_fpscr();
+}
+
+void OPPROTO op_vfp_movl_T0_xreg(void)
+{
+ T0 = env->vfp.xregs[PARAM1];
+}
+
+void OPPROTO op_vfp_movl_xreg_T0(void)
+{
+ env->vfp.xregs[PARAM1] = T0;
+}
+
+/* Move between FT0s to T0 */
+void OPPROTO op_vfp_mrs(void)
+{
+ T0 = vfp_stoi(FT0s);
+}
+
+void OPPROTO op_vfp_msr(void)
+{
+ FT0s = vfp_itos(T0);
+}
+
+/* Move between FT0d and {T0,T1} */
+void OPPROTO op_vfp_mrrd(void)
+{
+ CPU_DoubleU u;
+
+ u.d = FT0d;
+ T0 = u.l.lower;
+ T1 = u.l.upper;
+}
+
+void OPPROTO op_vfp_mdrr(void)
+{
+ CPU_DoubleU u;
+
+ u.l.lower = T0;
+ u.l.upper = T1;
+ FT0d = u.d;
+}
+
+/* Load immediate. PARAM1 is the 32 most significant bits of the value. */
+void OPPROTO op_vfp_fconstd(void)
+{
+ CPU_DoubleU u;
+ u.l.upper = PARAM1;
+ u.l.lower = 0;
+ FT0d = u.d;
+}
+
+void OPPROTO op_vfp_fconsts(void)
+{
+ FT0s = vfp_itos(PARAM1);
+}
+
+/* Copy the most significant bit of T0 to all bits of T1. */
+void OPPROTO op_signbit_T1_T0(void)
+{
+ T1 = (int32_t)T0 >> 31;
+}
+
+void OPPROTO op_movl_cp_T0(void)
+{
+ helper_set_cp(env, PARAM1, T0);
+ FORCE_RET();
+}
+
+void OPPROTO op_movl_T0_cp(void)
+{
+ T0 = helper_get_cp(env, PARAM1);
+ FORCE_RET();
+}
+
+void OPPROTO op_movl_cp15_T0(void)
+{
+ helper_set_cp15(env, PARAM1, T0);
+ FORCE_RET();
+}
+
+void OPPROTO op_movl_T0_cp15(void)
+{
+ T0 = helper_get_cp15(env, PARAM1);
+ FORCE_RET();
+}
+
+/* Access to user mode registers from privileged modes. */
+void OPPROTO op_movl_T0_user(void)
+{
+ int regno = PARAM1;
+ if (regno == 13) {
+ T0 = env->banked_r13[0];
+ } else if (regno == 14) {
+ T0 = env->banked_r14[0];
+ } else if ((env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_FIQ) {
+ T0 = env->usr_regs[regno - 8];
+ } else {
+ T0 = env->regs[regno];
+ }
+ FORCE_RET();
+}
+
+
+void OPPROTO op_movl_user_T0(void)
+{
+ int regno = PARAM1;
+ if (regno == 13) {
+ env->banked_r13[0] = T0;
+ } else if (regno == 14) {
+ env->banked_r14[0] = T0;
+ } else if ((env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_FIQ) {
+ env->usr_regs[regno - 8] = T0;
+ } else {
+ env->regs[regno] = T0;
+ }
+ FORCE_RET();
+}
+
+void OPPROTO op_movl_T0_T1(void)
+{
+ T0 = T1;
+}
+
+void OPPROTO op_movl_T0_T2(void)
+{
+ T0 = T2;
+}
+
+void OPPROTO op_movl_T1_T0(void)
+{
+ T1 = T0;
+}
+
+void OPPROTO op_movl_T1_T2(void)
+{
+ T1 = T2;
+}
+
+void OPPROTO op_movl_T2_T0(void)
+{
+ T2 = T0;
+}
+
+/* ARMv6 Media instructions. */
+
+/* Note that signed overflow is undefined in C. The following routines are
+ careful to use unsigned types where modulo arithmetic is required.
+ Failure to do so _will_ break on newer gcc. */
+
+/* Signed saturating arithmetic. */
+
+/* Perform 16-bit signed satruating addition. */
+static inline uint16_t add16_sat(uint16_t a, uint16_t b)
+{
+ uint16_t res;
+
+ res = a + b;
+ if (((res ^ a) & 0x8000) && !((a ^ b) & 0x8000)) {
+ if (a & 0x8000)
+ res = 0x8000;
+ else
+ res = 0x7fff;
+ }
+ return res;
+}
+
+/* Perform 8-bit signed satruating addition. */
+static inline uint8_t add8_sat(uint8_t a, uint8_t b)
+{
+ uint8_t res;
+
+ res = a + b;
+ if (((res ^ a) & 0x80) && !((a ^ b) & 0x80)) {
+ if (a & 0x80)
+ res = 0x80;
+ else
+ res = 0x7f;
+ }
+ return res;
+}
+
+/* Perform 16-bit signed satruating subtraction. */
+static inline uint16_t sub16_sat(uint16_t a, uint16_t b)
+{
+ uint16_t res;
+
+ res = a - b;
+ if (((res ^ a) & 0x8000) && ((a ^ b) & 0x8000)) {
+ if (a & 0x8000)
+ res = 0x8000;
+ else
+ res = 0x7fff;
+ }
+ return res;
+}
+
+/* Perform 8-bit signed satruating subtraction. */
+static inline uint8_t sub8_sat(uint8_t a, uint8_t b)
+{
+ uint8_t res;
+
+ res = a - b;
+ if (((res ^ a) & 0x80) && ((a ^ b) & 0x80)) {
+ if (a & 0x80)
+ res = 0x80;
+ else
+ res = 0x7f;
+ }
+ return res;
+}
+
+#define ADD16(a, b, n) RESULT(add16_sat(a, b), n, 16);
+#define SUB16(a, b, n) RESULT(sub16_sat(a, b), n, 16);
+#define ADD8(a, b, n) RESULT(add8_sat(a, b), n, 8);
+#define SUB8(a, b, n) RESULT(sub8_sat(a, b), n, 8);
+#define PFX q
+
+#include "op_addsub.h"
+
+/* Unsigned saturating arithmetic. */
+static inline uint16_t add16_usat(uint16_t a, uint8_t b)
+{
+ uint16_t res;
+ res = a + b;
+ if (res < a)
+ res = 0xffff;
+ return res;
+}
+
+static inline uint16_t sub16_usat(uint16_t a, uint8_t b)
+{
+ if (a < b)
+ return a - b;
+ else
+ return 0;
+}
+
+static inline uint8_t add8_usat(uint8_t a, uint8_t b)
+{
+ uint8_t res;
+ res = a + b;
+ if (res < a)
+ res = 0xff;
+ return res;
+}
+
+static inline uint8_t sub8_usat(uint8_t a, uint8_t b)
+{
+ if (a < b)
+ return a - b;
+ else
+ return 0;
+}
+
+#define ADD16(a, b, n) RESULT(add16_usat(a, b), n, 16);
+#define SUB16(a, b, n) RESULT(sub16_usat(a, b), n, 16);
+#define ADD8(a, b, n) RESULT(add8_usat(a, b), n, 8);
+#define SUB8(a, b, n) RESULT(sub8_usat(a, b), n, 8);
+#define PFX uq
+
+#include "op_addsub.h"
+
+/* Signed modulo arithmetic. */
+#define SARITH16(a, b, n, op) do { \
+ int32_t sum; \
+ sum = (int16_t)((uint16_t)(a) op (uint16_t)(b)); \
+ RESULT(sum, n, 16); \
+ if (sum >= 0) \
+ ge |= 3 << (n * 2); \
+ } while(0)
+
+#define SARITH8(a, b, n, op) do { \
+ int32_t sum; \
+ sum = (int8_t)((uint8_t)(a) op (uint8_t)(b)); \
+ RESULT(sum, n, 8); \
+ if (sum >= 0) \
+ ge |= 1 << n; \
+ } while(0)
+
+
+#define ADD16(a, b, n) SARITH16(a, b, n, +)
+#define SUB16(a, b, n) SARITH16(a, b, n, -)
+#define ADD8(a, b, n) SARITH8(a, b, n, +)
+#define SUB8(a, b, n) SARITH8(a, b, n, -)
+#define PFX s
+#define ARITH_GE
+
+#include "op_addsub.h"
+
+/* Unsigned modulo arithmetic. */
+#define ADD16(a, b, n) do { \
+ uint32_t sum; \
+ sum = (uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b); \
+ RESULT(sum, n, 16); \
+ if ((sum >> 16) == 0) \
+ ge |= 3 << (n * 2); \
+ } while(0)
+
+#define ADD8(a, b, n) do { \
+ uint32_t sum; \
+ sum = (uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b); \
+ RESULT(sum, n, 8); \
+ if ((sum >> 8) == 0) \
+ ge |= 3 << (n * 2); \
+ } while(0)
+
+#define SUB16(a, b, n) do { \
+ uint32_t sum; \
+ sum = (uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b); \
+ RESULT(sum, n, 16); \
+ if ((sum >> 16) == 0) \
+ ge |= 3 << (n * 2); \
+ } while(0)
+
+#define SUB8(a, b, n) do { \
+ uint32_t sum; \
+ sum = (uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b); \
+ RESULT(sum, n, 8); \
+ if ((sum >> 8) == 0) \
+ ge |= 3 << (n * 2); \
+ } while(0)
+
+#define PFX u
+#define ARITH_GE
+
+#include "op_addsub.h"
+
+/* Halved signed arithmetic. */
+#define ADD16(a, b, n) \
+ RESULT(((int32_t)(int16_t)(a) + (int32_t)(int16_t)(b)) >> 1, n, 16)
+#define SUB16(a, b, n) \
+ RESULT(((int32_t)(int16_t)(a) - (int32_t)(int16_t)(b)) >> 1, n, 16)
+#define ADD8(a, b, n) \
+ RESULT(((int32_t)(int8_t)(a) + (int32_t)(int8_t)(b)) >> 1, n, 8)
+#define SUB8(a, b, n) \
+ RESULT(((int32_t)(int8_t)(a) - (int32_t)(int8_t)(b)) >> 1, n, 8)
+#define PFX sh
+
+#include "op_addsub.h"
+
+/* Halved unsigned arithmetic. */
+#define ADD16(a, b, n) \
+ RESULT(((uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b)) >> 1, n, 16)
+#define SUB16(a, b, n) \
+ RESULT(((uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b)) >> 1, n, 16)
+#define ADD8(a, b, n) \
+ RESULT(((uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b)) >> 1, n, 8)
+#define SUB8(a, b, n) \
+ RESULT(((uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b)) >> 1, n, 8)
+#define PFX uh
+
+#include "op_addsub.h"
+
+void OPPROTO op_pkhtb_T0_T1(void)
+{
+ T0 = (T0 & 0xffff0000) | (T1 & 0xffff);
+}
+
+void OPPROTO op_pkhbt_T0_T1(void)
+{
+ T0 = (T0 & 0xffff) | (T1 & 0xffff0000);
+}
+void OPPROTO op_rev_T0(void)
+{
+ T0 = ((T0 & 0xff000000) >> 24)
+ | ((T0 & 0x00ff0000) >> 8)
+ | ((T0 & 0x0000ff00) << 8)
+ | ((T0 & 0x000000ff) << 24);
+}
+
+void OPPROTO op_revh_T0(void)
+{
+ T0 = (T0 >> 16) | (T0 << 16);
+}
+
+void OPPROTO op_rev16_T0(void)
+{
+ T0 = ((T0 & 0xff000000) >> 8)
+ | ((T0 & 0x00ff0000) << 8)
+ | ((T0 & 0x0000ff00) >> 8)
+ | ((T0 & 0x000000ff) << 8);
+}
+
+void OPPROTO op_revsh_T0(void)
+{
+ T0 = (int16_t)( ((T0 & 0x0000ff00) >> 8)
+ | ((T0 & 0x000000ff) << 8));
+}
+
+void OPPROTO op_rbit_T0(void)
+{
+ T0 = ((T0 & 0xff000000) >> 24)
+ | ((T0 & 0x00ff0000) >> 8)
+ | ((T0 & 0x0000ff00) << 8)
+ | ((T0 & 0x000000ff) << 24);
+ T0 = ((T0 & 0xf0f0f0f0) >> 4)
+ | ((T0 & 0x0f0f0f0f) << 4);
+ T0 = ((T0 & 0x88888888) >> 3)
+ | ((T0 & 0x44444444) >> 1)
+ | ((T0 & 0x22222222) << 1)
+ | ((T0 & 0x11111111) << 3);
+}
+
+/* Swap low and high halfwords. */
+void OPPROTO op_swap_half_T1(void)
+{
+ T1 = (T1 >> 16) | (T1 << 16);
+ FORCE_RET();
+}
+
+/* Dual 16-bit signed multiply. */
+void OPPROTO op_mul_dual_T0_T1(void)
+{
+ int32_t low;
+ int32_t high;
+ low = (int32_t)(int16_t)T0 * (int32_t)(int16_t)T1;
+ high = (((int32_t)T0) >> 16) * (((int32_t)T1) >> 16);
+ T0 = low;
+ T1 = high;
+}
+
+void OPPROTO op_sel_T0_T1(void)
+{
+ uint32_t mask;
+ uint32_t flags;
+
+ flags = env->GE;
+ mask = 0;
+ if (flags & 1)
+ mask |= 0xff;
+ if (flags & 2)
+ mask |= 0xff00;
+ if (flags & 4)
+ mask |= 0xff0000;
+ if (flags & 8)
+ mask |= 0xff000000;
+ T0 = (T0 & mask) | (T1 & ~mask);
+ FORCE_RET();
+}
+
+void OPPROTO op_roundqd_T0_T1(void)
+{
+ T0 = T1 + ((uint32_t)T0 >> 31);
+}
+
+/* Signed saturation. */
+static inline uint32_t do_ssat(int32_t val, int shift)
+{
+ int32_t top;
+ uint32_t mask;
+
+ shift = PARAM1;
+ top = val >> shift;
+ mask = (1u << shift) - 1;
+ if (top > 0) {
+ env->QF = 1;
+ return mask;
+ } else if (top < -1) {
+ env->QF = 1;
+ return ~mask;
+ }
+ return val;
+}
+
+/* Unsigned saturation. */
+static inline uint32_t do_usat(int32_t val, int shift)
+{
+ uint32_t max;
+
+ shift = PARAM1;
+ max = (1u << shift) - 1;
+ if (val < 0) {
+ env->QF = 1;
+ return 0;
+ } else if (val > max) {
+ env->QF = 1;
+ return max;
+ }
+ return val;
+}
+
+/* Signed saturate. */
+void OPPROTO op_ssat_T1(void)
+{
+ T0 = do_ssat(T0, PARAM1);
+ FORCE_RET();
+}
+
+/* Dual halfword signed saturate. */
+void OPPROTO op_ssat16_T1(void)
+{
+ uint32_t res;
+
+ res = (uint16_t)do_ssat((int16_t)T0, PARAM1);
+ res |= do_ssat(((int32_t)T0) >> 16, PARAM1) << 16;
+ T0 = res;
+ FORCE_RET();
+}
+
+/* Unsigned saturate. */
+void OPPROTO op_usat_T1(void)
+{
+ T0 = do_usat(T0, PARAM1);
+ FORCE_RET();
+}
+
+/* Dual halfword unsigned saturate. */
+void OPPROTO op_usat16_T1(void)
+{
+ uint32_t res;
+
+ res = (uint16_t)do_usat((int16_t)T0, PARAM1);
+ res |= do_usat(((int32_t)T0) >> 16, PARAM1) << 16;
+ T0 = res;
+ FORCE_RET();
+}
+
+/* Dual 16-bit add. */
+void OPPROTO op_add16_T1_T2(void)
+{
+ uint32_t mask;
+ mask = (T0 & T1) & 0x8000;
+ T0 ^= ~0x8000;
+ T1 ^= ~0x8000;
+ T0 = (T0 + T1) ^ mask;
+}
+
+static inline uint8_t do_usad(uint8_t a, uint8_t b)
+{
+ if (a > b)
+ return a - b;
+ else
+ return b - a;
+}
+
+/* Unsigned sum of absolute byte differences. */
+void OPPROTO op_usad8_T0_T1(void)
+{
+ uint32_t sum;
+ sum = do_usad(T0, T1);
+ sum += do_usad(T0 >> 8, T1 >> 8);
+ sum += do_usad(T0 >> 16, T1 >>16);
+ sum += do_usad(T0 >> 24, T1 >> 24);
+ T0 = sum;
+}
+
+/* Thumb-2 instructions. */
+
+/* Insert T1 into T0. Result goes in T1. */
+void OPPROTO op_bfi_T1_T0(void)
+{
+ int shift = PARAM1;
+ uint32_t mask = PARAM2;
+ uint32_t bits;
+
+ bits = (T1 << shift) & mask;
+ T1 = (T0 & ~mask) | bits;
+}
+
+/* Unsigned bitfield extract. */
+void OPPROTO op_ubfx_T1(void)
+{
+ uint32_t shift = PARAM1;
+ uint32_t mask = PARAM2;
+
+ T1 >>= shift;
+ T1 &= mask;
+}
+
+/* Signed bitfield extract. */
+void OPPROTO op_sbfx_T1(void)
+{
+ uint32_t shift = PARAM1;
+ uint32_t width = PARAM2;
+ int32_t val;
+
+ val = T1 << (32 - (shift + width));
+ T1 = val >> (32 - width);
+}
+
+void OPPROTO op_movtop_T0_im(void)
+{
+ T0 = (T0 & 0xffff) | PARAM1;
+}
+
+/* Used by table branch instructions. */
+void OPPROTO op_jmp_T0_im(void)
+{
+ env->regs[15] = PARAM1 + (T0 << 1);
+}
+
+void OPPROTO op_set_condexec(void)
+{
+ env->condexec_bits = PARAM1;
+}
+
+void OPPROTO op_sdivl_T0_T1(void)
+{
+ int32_t num;
+ int32_t den;
+ num = T0;
+ den = T1;
+ if (den == 0)
+ T0 = 0;
+ else
+ T0 = num / den;
+ FORCE_RET();
+}
+
+void OPPROTO op_udivl_T0_T1(void)
+{
+ uint32_t num;
+ uint32_t den;
+ num = T0;
+ den = T1;
+ if (den == 0)
+ T0 = 0;
+ else
+ T0 = num / den;
+ FORCE_RET();
+}
+
+void OPPROTO op_movl_T1_r13_banked(void)
+{
+ T1 = helper_get_r13_banked(env, PARAM1);
+}
+
+void OPPROTO op_movl_r13_T1_banked(void)
+{
+ helper_set_r13_banked(env, PARAM1, T1);
+}
+
+void OPPROTO op_v7m_mrs_T0(void)
+{
+ T0 = helper_v7m_mrs(env, PARAM1);
+}
+
+void OPPROTO op_v7m_msr_T0(void)
+{
+ helper_v7m_msr(env, PARAM1, T0);
+}
+
+void OPPROTO op_movl_T0_sp(void)
+{
+ if (PARAM1 == env->v7m.current_sp)
+ T0 = env->regs[13];
+ else
+ T0 = env->v7m.other_sp;
+ FORCE_RET();
+}
+
+#include "op_neon.h"
+
+/* iwMMXt support */
+#include "op_iwmmxt.c"
projects / mirror_qemu.git / blobdiff