diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/s390x/helper.h | 6 | ||||
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/translate_vx.inc.c | 31 | ||||
| -rw-r--r-- | target/s390x/vec.h | 19 | ||||
| -rw-r--r-- | target/s390x/vec_string_helper.c | 74 |
5 files changed, 132 insertions, 0 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index a1b169b666..fb50b404db 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -224,6 +224,12 @@ DEF_HELPER_FLAGS_4(gvec_vfee32, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) DEF_HELPER_5(gvec_vfee_cc8, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfee_cc16, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfee_cc32, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_4(gvec_vfene8, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) +DEF_HELPER_FLAGS_4(gvec_vfene16, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) +DEF_HELPER_FLAGS_4(gvec_vfene32, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) +DEF_HELPER_5(gvec_vfene_cc8, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfene_cc16, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfene_cc32, void, ptr, cptr, cptr, env, i32) #ifndef CONFIG_USER_ONLY DEF_HELPER_3(servc, i32, env, i64, i64) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index d8907ef6a5..d03c1ee0b3 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1197,6 +1197,8 @@ F(0xe782, VFAE, VRR_b, V, 0, 0, 0, 0, vfae, 0, IF_VEC) /* VECTOR FIND ELEMENT EQUAL */ F(0xe780, VFEE, VRR_b, V, 0, 0, 0, 0, vfee, 0, IF_VEC) +/* VECTOR FIND ELEMENT NOT EQUAL */ + F(0xe781, VFENE, VRR_b, V, 0, 0, 0, 0, vfene, 0, IF_VEC) #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c index b25afbc011..1ad0b62517 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -2414,3 +2414,34 @@ static DisasJumpType op_vfee(DisasContext *s, DisasOps *o) } return DISAS_NEXT; } + +static DisasJumpType op_vfene(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s->fields, m4); + const uint8_t m5 = get_field(s->fields, m5); + static gen_helper_gvec_3 * const g[3] = { + gen_helper_gvec_vfene8, + gen_helper_gvec_vfene16, + gen_helper_gvec_vfene32, + }; + static gen_helper_gvec_3_ptr * const g_cc[3] = { + gen_helper_gvec_vfene_cc8, + gen_helper_gvec_vfene_cc16, + gen_helper_gvec_vfene_cc32, + }; + + if (es > ES_32 || m5 & ~0x3) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + if (extract32(m5, 0, 1)) { + gen_gvec_3_ptr(get_field(s->fields, v1), get_field(s->fields, v2), + get_field(s->fields, v3), cpu_env, m5, g_cc[es]); + set_cc_static(s); + } else { + gen_gvec_3_ool(get_field(s->fields, v1), get_field(s->fields, v2), + get_field(s->fields, v3), m5, g[es]); + } + return DISAS_NEXT; +} diff --git a/target/s390x/vec.h b/target/s390x/vec.h index 3313fb43ee..affc62874c 100644 --- a/target/s390x/vec.h +++ b/target/s390x/vec.h @@ -12,6 +12,8 @@ #ifndef S390X_VEC_H #define S390X_VEC_H +#include "tcg/tcg.h" + typedef union S390Vector { uint64_t doubleword[2]; uint32_t word[4]; @@ -70,6 +72,23 @@ static inline uint64_t s390_vec_read_element64(const S390Vector *v, uint8_t enr) return v->doubleword[enr]; } +static inline uint64_t s390_vec_read_element(const S390Vector *v, uint8_t enr, + uint8_t es) +{ + switch (es) { + case MO_8: + return s390_vec_read_element8(v, enr); + case MO_16: + return s390_vec_read_element16(v, enr); + case MO_32: + return s390_vec_read_element32(v, enr); + case MO_64: + return s390_vec_read_element64(v, enr); + default: + g_assert_not_reached(); + } +} + static inline void s390_vec_write_element8(S390Vector *v, uint8_t enr, uint8_t data) { diff --git a/target/s390x/vec_string_helper.c b/target/s390x/vec_string_helper.c index 05ad99e173..0ee3470112 100644 --- a/target/s390x/vec_string_helper.c +++ b/target/s390x/vec_string_helper.c @@ -28,6 +28,15 @@ static inline uint64_t zero_search(uint64_t a, uint64_t mask) } /* + * Returns a bit set in the MSB of each element that is not zero, + * as defined by the mask. + */ +static inline uint64_t nonzero_search(uint64_t a, uint64_t mask) +{ + return (((a & mask) + mask) | a) & ~mask; +} + +/* * Returns the byte offset for the first match, or 16 for no match. */ static inline int match_index(uint64_t c0, uint64_t c1) @@ -209,3 +218,68 @@ void HELPER(gvec_vfee_cc##BITS)(void *v1, const void *v2, const void *v3, \ DEF_VFEE_CC_HELPER(8) DEF_VFEE_CC_HELPER(16) DEF_VFEE_CC_HELPER(32) + +static int vfene(void *v1, const void *v2, const void *v3, bool zs, uint8_t es) +{ + const uint64_t mask = get_element_lsbs_mask(es); + uint64_t a0, a1, b0, b1, e0, e1, z0, z1; + uint64_t first_zero = 16; + uint64_t first_inequal; + bool smaller = false; + + a0 = s390_vec_read_element64(v2, 0); + a1 = s390_vec_read_element64(v2, 1); + b0 = s390_vec_read_element64(v3, 0); + b1 = s390_vec_read_element64(v3, 1); + e0 = nonzero_search(a0 ^ b0, mask); + e1 = nonzero_search(a1 ^ b1, mask); + first_inequal = match_index(e0, e1); + + /* identify the smaller element */ + if (first_inequal < 16) { + uint8_t enr = first_inequal / (1 << es); + uint32_t a = s390_vec_read_element(v2, enr, es); + uint32_t b = s390_vec_read_element(v3, enr, es); + + smaller = a < b; + } + + if (zs) { + z0 = zero_search(a0, mask); + z1 = zero_search(a1, mask); + first_zero = match_index(z0, z1); + } + + s390_vec_write_element64(v1, 0, MIN(first_inequal, first_zero)); + s390_vec_write_element64(v1, 1, 0); + if (first_zero == 16 && first_inequal == 16) { + return 3; + } else if (first_zero < first_inequal) { + return 0; + } + return smaller ? 1 : 2; +} + +#define DEF_VFENE_HELPER(BITS) \ +void HELPER(gvec_vfene##BITS)(void *v1, const void *v2, const void *v3, \ + uint32_t desc) \ +{ \ + const bool zs = extract32(simd_data(desc), 1, 1); \ + \ + vfene(v1, v2, v3, zs, MO_##BITS); \ +} +DEF_VFENE_HELPER(8) +DEF_VFENE_HELPER(16) +DEF_VFENE_HELPER(32) + +#define DEF_VFENE_CC_HELPER(BITS) \ +void HELPER(gvec_vfene_cc##BITS)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool zs = extract32(simd_data(desc), 1, 1); \ + \ + env->cc_op = vfene(v1, v2, v3, zs, MO_##BITS); \ +} +DEF_VFENE_CC_HELPER(8) +DEF_VFENE_CC_HELPER(16) +DEF_VFENE_CC_HELPER(32) |