return 1;
}
#endif
-
-/* UniCore-F64 support. We follow the convention used for F64 instrunctions:
- Single precition routines have a "s" suffix, double precision a
- "d" suffix. */
-
-/* Convert host exception flags to f64 form. */
-static inline int ucf64_exceptbits_from_host(int host_bits)
-{
- int target_bits = 0;
-
- if (host_bits & float_flag_invalid) {
- target_bits |= UCF64_FPSCR_FLAG_INVALID;
- }
- if (host_bits & float_flag_divbyzero) {
- target_bits |= UCF64_FPSCR_FLAG_DIVZERO;
- }
- if (host_bits & float_flag_overflow) {
- target_bits |= UCF64_FPSCR_FLAG_OVERFLOW;
- }
- if (host_bits & float_flag_underflow) {
- target_bits |= UCF64_FPSCR_FLAG_UNDERFLOW;
- }
- if (host_bits & float_flag_inexact) {
- target_bits |= UCF64_FPSCR_FLAG_INEXACT;
- }
- return target_bits;
-}
-
-uint32_t HELPER(ucf64_get_fpscr)(CPUUniCore32State *env)
-{
- int i;
- uint32_t fpscr;
-
- fpscr = (env->ucf64.xregs[UC32_UCF64_FPSCR] & UCF64_FPSCR_MASK);
- i = get_float_exception_flags(&env->ucf64.fp_status);
- fpscr |= ucf64_exceptbits_from_host(i);
- return fpscr;
-}
-
-/* Convert ucf64 exception flags to target form. */
-static inline int ucf64_exceptbits_to_host(int target_bits)
-{
- int host_bits = 0;
-
- if (target_bits & UCF64_FPSCR_FLAG_INVALID) {
- host_bits |= float_flag_invalid;
- }
- if (target_bits & UCF64_FPSCR_FLAG_DIVZERO) {
- host_bits |= float_flag_divbyzero;
- }
- if (target_bits & UCF64_FPSCR_FLAG_OVERFLOW) {
- host_bits |= float_flag_overflow;
- }
- if (target_bits & UCF64_FPSCR_FLAG_UNDERFLOW) {
- host_bits |= float_flag_underflow;
- }
- if (target_bits & UCF64_FPSCR_FLAG_INEXACT) {
- host_bits |= float_flag_inexact;
- }
- return host_bits;
-}
-
-void HELPER(ucf64_set_fpscr)(CPUUniCore32State *env, uint32_t val)
-{
- int i;
- uint32_t changed;
-
- changed = env->ucf64.xregs[UC32_UCF64_FPSCR];
- env->ucf64.xregs[UC32_UCF64_FPSCR] = (val & UCF64_FPSCR_MASK);
-
- changed ^= val;
- if (changed & (UCF64_FPSCR_RND_MASK)) {
- i = UCF64_FPSCR_RND(val);
- switch (i) {
- case 0:
- i = float_round_nearest_even;
- break;
- case 1:
- i = float_round_to_zero;
- break;
- case 2:
- i = float_round_up;
- break;
- case 3:
- i = float_round_down;
- break;
- default: /* 100 and 101 not implement */
- cpu_abort(env, "Unsupported UniCore-F64 round mode");
- }
- set_float_rounding_mode(i, &env->ucf64.fp_status);
- }
-
- i = ucf64_exceptbits_to_host(UCF64_FPSCR_TRAPEN(val));
- set_float_exception_flags(i, &env->ucf64.fp_status);
-}
-
-float32 HELPER(ucf64_adds)(float32 a, float32 b, CPUUniCore32State *env)
-{
- return float32_add(a, b, &env->ucf64.fp_status);
-}
-
-float64 HELPER(ucf64_addd)(float64 a, float64 b, CPUUniCore32State *env)
-{
- return float64_add(a, b, &env->ucf64.fp_status);
-}
-
-float32 HELPER(ucf64_subs)(float32 a, float32 b, CPUUniCore32State *env)
-{
- return float32_sub(a, b, &env->ucf64.fp_status);
-}
-
-float64 HELPER(ucf64_subd)(float64 a, float64 b, CPUUniCore32State *env)
-{
- return float64_sub(a, b, &env->ucf64.fp_status);
-}
-
-float32 HELPER(ucf64_muls)(float32 a, float32 b, CPUUniCore32State *env)
-{
- return float32_mul(a, b, &env->ucf64.fp_status);
-}
-
-float64 HELPER(ucf64_muld)(float64 a, float64 b, CPUUniCore32State *env)
-{
- return float64_mul(a, b, &env->ucf64.fp_status);
-}
-
-float32 HELPER(ucf64_divs)(float32 a, float32 b, CPUUniCore32State *env)
-{
- return float32_div(a, b, &env->ucf64.fp_status);
-}
-
-float64 HELPER(ucf64_divd)(float64 a, float64 b, CPUUniCore32State *env)
-{
- return float64_div(a, b, &env->ucf64.fp_status);
-}
-
-float32 HELPER(ucf64_negs)(float32 a)
-{
- return float32_chs(a);
-}
-
-float64 HELPER(ucf64_negd)(float64 a)
-{
- return float64_chs(a);
-}
-
-float32 HELPER(ucf64_abss)(float32 a)
-{
- return float32_abs(a);
-}
-
-float64 HELPER(ucf64_absd)(float64 a)
-{
- return float64_abs(a);
-}
-
-/* XXX: check quiet/signaling case */
-void HELPER(ucf64_cmps)(float32 a, float32 b, uint32_t c, CPUUniCore32State *env)
-{
- int flag;
- flag = float32_compare_quiet(a, b, &env->ucf64.fp_status);
- env->CF = 0;
- switch (c & 0x7) {
- case 0: /* F */
- break;
- case 1: /* UN */
- if (flag == 2) {
- env->CF = 1;
- }
- break;
- case 2: /* EQ */
- if (flag == 0) {
- env->CF = 1;
- }
- break;
- case 3: /* UEQ */
- if ((flag == 0) || (flag == 2)) {
- env->CF = 1;
- }
- break;
- case 4: /* OLT */
- if (flag == -1) {
- env->CF = 1;
- }
- break;
- case 5: /* ULT */
- if ((flag == -1) || (flag == 2)) {
- env->CF = 1;
- }
- break;
- case 6: /* OLE */
- if ((flag == -1) || (flag == 0)) {
- env->CF = 1;
- }
- break;
- case 7: /* ULE */
- if (flag != 1) {
- env->CF = 1;
- }
- break;
- }
- env->ucf64.xregs[UC32_UCF64_FPSCR] = (env->CF << 29)
- | (env->ucf64.xregs[UC32_UCF64_FPSCR] & 0x0fffffff);
-}
-
-void HELPER(ucf64_cmpd)(float64 a, float64 b, uint32_t c, CPUUniCore32State *env)
-{
- int flag;
- flag = float64_compare_quiet(a, b, &env->ucf64.fp_status);
- env->CF = 0;
- switch (c & 0x7) {
- case 0: /* F */
- break;
- case 1: /* UN */
- if (flag == 2) {
- env->CF = 1;
- }
- break;
- case 2: /* EQ */
- if (flag == 0) {
- env->CF = 1;
- }
- break;
- case 3: /* UEQ */
- if ((flag == 0) || (flag == 2)) {
- env->CF = 1;
- }
- break;
- case 4: /* OLT */
- if (flag == -1) {
- env->CF = 1;
- }
- break;
- case 5: /* ULT */
- if ((flag == -1) || (flag == 2)) {
- env->CF = 1;
- }
- break;
- case 6: /* OLE */
- if ((flag == -1) || (flag == 0)) {
- env->CF = 1;
- }
- break;
- case 7: /* ULE */
- if (flag != 1) {
- env->CF = 1;
- }
- break;
- }
- env->ucf64.xregs[UC32_UCF64_FPSCR] = (env->CF << 29)
- | (env->ucf64.xregs[UC32_UCF64_FPSCR] & 0x0fffffff);
-}
-
-/* Helper routines to perform bitwise copies between float and int. */
-static inline float32 ucf64_itos(uint32_t i)
-{
- union {
- uint32_t i;
- float32 s;
- } v;
-
- v.i = i;
- return v.s;
-}
-
-static inline uint32_t ucf64_stoi(float32 s)
-{
- union {
- uint32_t i;
- float32 s;
- } v;
-
- v.s = s;
- return v.i;
-}
-
-static inline float64 ucf64_itod(uint64_t i)
-{
- union {
- uint64_t i;
- float64 d;
- } v;
-
- v.i = i;
- return v.d;
-}
-
-static inline uint64_t ucf64_dtoi(float64 d)
-{
- union {
- uint64_t i;
- float64 d;
- } v;
-
- v.d = d;
- return v.i;
-}
-
-/* Integer to float conversion. */
-float32 HELPER(ucf64_si2sf)(float32 x, CPUUniCore32State *env)
-{
- return int32_to_float32(ucf64_stoi(x), &env->ucf64.fp_status);
-}
-
-float64 HELPER(ucf64_si2df)(float32 x, CPUUniCore32State *env)
-{
- return int32_to_float64(ucf64_stoi(x), &env->ucf64.fp_status);
-}
-
-/* Float to integer conversion. */
-float32 HELPER(ucf64_sf2si)(float32 x, CPUUniCore32State *env)
-{
- return ucf64_itos(float32_to_int32(x, &env->ucf64.fp_status));
-}
-
-float32 HELPER(ucf64_df2si)(float64 x, CPUUniCore32State *env)
-{
- return ucf64_itos(float64_to_int32(x, &env->ucf64.fp_status));
-}
-
-/* floating point conversion */
-float64 HELPER(ucf64_sf2df)(float32 x, CPUUniCore32State *env)
-{
- return float32_to_float64(x, &env->ucf64.fp_status);
-}
-
-float32 HELPER(ucf64_df2sf)(float64 x, CPUUniCore32State *env)
-{
- return float64_to_float32(x, &env->ucf64.fp_status);
-}
projects / qemu.git / blobdiff