diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/s390x/helper.h | 6 | ||||
| -rw-r--r-- | target/s390x/tcg/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/tcg/translate.c | 3 | ||||
| -rw-r--r-- | target/s390x/tcg/translate_vx.c.inc | 25 | ||||
| -rw-r--r-- | target/s390x/tcg/vec_string_helper.c | 99 |
5 files changed, 134 insertions, 1 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 7cbcbd7f0b..7412130883 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -246,6 +246,12 @@ DEF_HELPER_6(gvec_vstrc_cc32, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_6(gvec_vstrc_cc_rt8, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_6(gvec_vstrc_cc_rt16, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_6(gvec_vstrc_cc_rt32, void, ptr, cptr, cptr, cptr, env, i32) +DEF_HELPER_6(gvec_vstrs_8, void, ptr, cptr, cptr, cptr, env, i32) +DEF_HELPER_6(gvec_vstrs_16, void, ptr, cptr, cptr, cptr, env, i32) +DEF_HELPER_6(gvec_vstrs_32, void, ptr, cptr, cptr, cptr, env, i32) +DEF_HELPER_6(gvec_vstrs_zs8, void, ptr, cptr, cptr, cptr, env, i32) +DEF_HELPER_6(gvec_vstrs_zs16, void, ptr, cptr, cptr, cptr, env, i32) +DEF_HELPER_6(gvec_vstrs_zs32, void, ptr, cptr, cptr, cptr, env, i32) /* === Vector Floating-Point Instructions */ DEF_HELPER_FLAGS_5(gvec_vfa32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) diff --git a/target/s390x/tcg/insn-data.def b/target/s390x/tcg/insn-data.def index 6c8a8b229f..46add91a0e 100644 --- a/target/s390x/tcg/insn-data.def +++ b/target/s390x/tcg/insn-data.def @@ -1246,6 +1246,8 @@ F(0xe75c, VISTR, VRR_a, V, 0, 0, 0, 0, vistr, 0, IF_VEC) /* VECTOR STRING RANGE COMPARE */ F(0xe78a, VSTRC, VRR_d, V, 0, 0, 0, 0, vstrc, 0, IF_VEC) +/* VECTOR STRING SEARCH */ + F(0xe78b, VSTRS, VRR_d, VE2, 0, 0, 0, 0, vstrs, 0, IF_VEC) /* === Vector Floating-Point Instructions */ diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c index 8f092dab95..b40cb84bae 100644 --- a/target/s390x/tcg/translate.c +++ b/target/s390x/tcg/translate.c @@ -6222,7 +6222,8 @@ enum DisasInsnEnum { #define FAC_PCI S390_FEAT_ZPCI /* z/PCI facility */ #define FAC_AIS S390_FEAT_ADAPTER_INT_SUPPRESSION #define FAC_V S390_FEAT_VECTOR /* vector facility */ -#define FAC_VE S390_FEAT_VECTOR_ENH /* vector enhancements facility 1 */ +#define FAC_VE S390_FEAT_VECTOR_ENH /* vector enhancements facility 1 */ +#define FAC_VE2 S390_FEAT_VECTOR_ENH2 /* vector enhancements facility 2 */ #define FAC_MIE2 S390_FEAT_MISC_INSTRUCTION_EXT2 /* miscellaneous-instruction-extensions facility 2 */ #define FAC_MIE3 S390_FEAT_MISC_INSTRUCTION_EXT3 /* miscellaneous-instruction-extensions facility 3 */ diff --git a/target/s390x/tcg/translate_vx.c.inc b/target/s390x/tcg/translate_vx.c.inc index be9407d1ed..8ddbd440e2 100644 --- a/target/s390x/tcg/translate_vx.c.inc +++ b/target/s390x/tcg/translate_vx.c.inc @@ -2497,6 +2497,31 @@ static DisasJumpType op_vstrc(DisasContext *s, DisasOps *o) return DISAS_NEXT; } +static DisasJumpType op_vstrs(DisasContext *s, DisasOps *o) +{ + typedef void (*helper_vstrs)(TCGv_ptr, TCGv_ptr, TCGv_ptr, + TCGv_ptr, TCGv_ptr, TCGv_i32); + static const helper_vstrs fns[3][2] = { + { gen_helper_gvec_vstrs_8, gen_helper_gvec_vstrs_zs8 }, + { gen_helper_gvec_vstrs_16, gen_helper_gvec_vstrs_zs16 }, + { gen_helper_gvec_vstrs_32, gen_helper_gvec_vstrs_zs32 }, + }; + const uint8_t es = get_field(s, m5); + const uint8_t m6 = get_field(s, m6); + const bool zs = extract32(m6, 1, 1); + + if (es > ES_32 || m6 & ~2) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + gen_gvec_4_ptr(get_field(s, v1), get_field(s, v2), + get_field(s, v3), get_field(s, v4), + cpu_env, 0, fns[es][zs]); + set_cc_static(s); + return DISAS_NEXT; +} + static DisasJumpType op_vfa(DisasContext *s, DisasOps *o) { const uint8_t fpf = get_field(s, m4); diff --git a/target/s390x/tcg/vec_string_helper.c b/target/s390x/tcg/vec_string_helper.c index f8b54bba4a..9b85becdfb 100644 --- a/target/s390x/tcg/vec_string_helper.c +++ b/target/s390x/tcg/vec_string_helper.c @@ -470,3 +470,102 @@ void HELPER(gvec_vstrc_cc_rt##BITS)(void *v1, const void *v2, const void *v3, \ DEF_VSTRC_CC_RT_HELPER(8) DEF_VSTRC_CC_RT_HELPER(16) DEF_VSTRC_CC_RT_HELPER(32) + +static int vstrs(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, + const S390Vector *v4, uint8_t es, bool zs) +{ + int substr_elen, substr_0, str_elen, i, j, k, cc; + int nelem = 16 >> es; + bool eos = false; + + substr_elen = s390_vec_read_element8(v4, 7) >> es; + + /* If ZS, bound substr length by min(nelem, strlen(v3)). */ + if (zs) { + substr_elen = MIN(substr_elen, nelem); + for (i = 0; i < substr_elen; i++) { + if (s390_vec_read_element(v3, i, es) == 0) { + substr_elen = i; + break; + } + } + } + + if (substr_elen == 0) { + cc = 2; /* full match for degenerate case of empty substr */ + k = 0; + goto done; + } + + /* If ZS, look for eos in the searched string. */ + if (zs) { + for (k = 0; k < nelem; k++) { + if (s390_vec_read_element(v2, k, es) == 0) { + eos = true; + break; + } + } + str_elen = k; + } else { + str_elen = nelem; + } + + substr_0 = s390_vec_read_element(v3, 0, es); + + for (k = 0; ; k++) { + for (; k < str_elen; k++) { + if (s390_vec_read_element(v2, k, es) == substr_0) { + break; + } + } + + /* If we reached the end of the string, no match. */ + if (k == str_elen) { + cc = eos; /* no match (with or without zero char) */ + goto done; + } + + /* If the substring is only one char, match. */ + if (substr_elen == 1) { + cc = 2; /* full match */ + goto done; + } + + /* If the match begins at the last char, we have a partial match. */ + if (k == str_elen - 1) { + cc = 3; /* partial match */ + goto done; + } + + i = MIN(nelem, k + substr_elen); + for (j = k + 1; j < i; j++) { + uint32_t e2 = s390_vec_read_element(v2, j, es); + uint32_t e3 = s390_vec_read_element(v3, j - k, es); + if (e2 != e3) { + break; + } + } + if (j == i) { + /* Matched up until "end". */ + cc = i - k == substr_elen ? 2 : 3; /* full or partial match */ + goto done; + } + } + + done: + s390_vec_write_element64(v1, 0, k << es); + s390_vec_write_element64(v1, 1, 0); + return cc; +} + +#define DEF_VSTRS_HELPER(BITS) \ +void QEMU_FLATTEN HELPER(gvec_vstrs_##BITS)(void *v1, const void *v2, \ + const void *v3, const void *v4, CPUS390XState *env, uint32_t desc) \ + { env->cc_op = vstrs(v1, v2, v3, v4, MO_##BITS, false); } \ +void QEMU_FLATTEN HELPER(gvec_vstrs_zs##BITS)(void *v1, const void *v2, \ + const void *v3, const void *v4, CPUS390XState *env, uint32_t desc) \ + { env->cc_op = vstrs(v1, v2, v3, v4, MO_##BITS, true); } + +DEF_VSTRS_HELPER(8) +DEF_VSTRS_HELPER(16) +DEF_VSTRS_HELPER(32) |