| /* |
| * QEMU TCG support -- s390x vector integer instruction support |
| * |
| * Copyright (C) 2019 Red Hat Inc |
| * |
| * Authors: |
| * David Hildenbrand <david@redhat.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| */ |
| #include "qemu/osdep.h" |
| #include "qemu-common.h" |
| #include "cpu.h" |
| #include "vec.h" |
| #include "exec/helper-proto.h" |
| #include "tcg/tcg-gvec-desc.h" |
| |
| static bool s390_vec_is_zero(const S390Vector *v) |
| { |
| return !v->doubleword[0] && !v->doubleword[1]; |
| } |
| |
| static void s390_vec_xor(S390Vector *res, const S390Vector *a, |
| const S390Vector *b) |
| { |
| res->doubleword[0] = a->doubleword[0] ^ b->doubleword[0]; |
| res->doubleword[1] = a->doubleword[1] ^ b->doubleword[1]; |
| } |
| |
| static void s390_vec_and(S390Vector *res, const S390Vector *a, |
| const S390Vector *b) |
| { |
| res->doubleword[0] = a->doubleword[0] & b->doubleword[0]; |
| res->doubleword[1] = a->doubleword[1] & b->doubleword[1]; |
| } |
| |
| static bool s390_vec_equal(const S390Vector *a, const S390Vector *b) |
| { |
| return a->doubleword[0] == b->doubleword[0] && |
| a->doubleword[1] == b->doubleword[1]; |
| } |
| |
| static void s390_vec_shl(S390Vector *d, const S390Vector *a, uint64_t count) |
| { |
| uint64_t tmp; |
| |
| g_assert(count < 128); |
| if (count == 0) { |
| d->doubleword[0] = a->doubleword[0]; |
| d->doubleword[1] = a->doubleword[1]; |
| } else if (count == 64) { |
| d->doubleword[0] = a->doubleword[1]; |
| d->doubleword[1] = 0; |
| } else if (count < 64) { |
| tmp = extract64(a->doubleword[1], 64 - count, count); |
| d->doubleword[1] = a->doubleword[1] << count; |
| d->doubleword[0] = (a->doubleword[0] << count) | tmp; |
| } else { |
| d->doubleword[0] = a->doubleword[1] << (count - 64); |
| d->doubleword[1] = 0; |
| } |
| } |
| |
| static void s390_vec_sar(S390Vector *d, const S390Vector *a, uint64_t count) |
| { |
| uint64_t tmp; |
| |
| if (count == 0) { |
| d->doubleword[0] = a->doubleword[0]; |
| d->doubleword[1] = a->doubleword[1]; |
| } else if (count == 64) { |
| d->doubleword[1] = a->doubleword[0]; |
| d->doubleword[0] = 0; |
| } else if (count < 64) { |
| tmp = a->doubleword[1] >> count; |
| d->doubleword[1] = deposit64(tmp, 64 - count, count, a->doubleword[0]); |
| d->doubleword[0] = (int64_t)a->doubleword[0] >> count; |
| } else { |
| d->doubleword[1] = (int64_t)a->doubleword[0] >> (count - 64); |
| d->doubleword[0] = 0; |
| } |
| } |
| |
| static void s390_vec_shr(S390Vector *d, const S390Vector *a, uint64_t count) |
| { |
| uint64_t tmp; |
| |
| g_assert(count < 128); |
| if (count == 0) { |
| d->doubleword[0] = a->doubleword[0]; |
| d->doubleword[1] = a->doubleword[1]; |
| } else if (count == 64) { |
| d->doubleword[1] = a->doubleword[0]; |
| d->doubleword[0] = 0; |
| } else if (count < 64) { |
| tmp = a->doubleword[1] >> count; |
| d->doubleword[1] = deposit64(tmp, 64 - count, count, a->doubleword[0]); |
| d->doubleword[0] = a->doubleword[0] >> count; |
| } else { |
| d->doubleword[1] = a->doubleword[0] >> (count - 64); |
| d->doubleword[0] = 0; |
| } |
| } |
| #define DEF_VAVG(BITS) \ |
| void HELPER(gvec_vavg##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const int32_t a = (int##BITS##_t)s390_vec_read_element##BITS(v2, i); \ |
| const int32_t b = (int##BITS##_t)s390_vec_read_element##BITS(v3, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, (a + b + 1) >> 1); \ |
| } \ |
| } |
| DEF_VAVG(8) |
| DEF_VAVG(16) |
| |
| #define DEF_VAVGL(BITS) \ |
| void HELPER(gvec_vavgl##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| const uint##BITS##_t b = s390_vec_read_element##BITS(v3, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, (a + b + 1) >> 1); \ |
| } \ |
| } |
| DEF_VAVGL(8) |
| DEF_VAVGL(16) |
| |
| #define DEF_VCLZ(BITS) \ |
| void HELPER(gvec_vclz##BITS)(void *v1, const void *v2, uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, clz32(a) - 32 + BITS); \ |
| } \ |
| } |
| DEF_VCLZ(8) |
| DEF_VCLZ(16) |
| |
| #define DEF_VCTZ(BITS) \ |
| void HELPER(gvec_vctz##BITS)(void *v1, const void *v2, uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, a ? ctz32(a) : BITS); \ |
| } \ |
| } |
| DEF_VCTZ(8) |
| DEF_VCTZ(16) |
| |
| /* like binary multiplication, but XOR instead of addition */ |
| #define DEF_GALOIS_MULTIPLY(BITS, TBITS) \ |
| static uint##TBITS##_t galois_multiply##BITS(uint##TBITS##_t a, \ |
| uint##TBITS##_t b) \ |
| { \ |
| uint##TBITS##_t res = 0; \ |
| \ |
| while (b) { \ |
| if (b & 0x1) { \ |
| res = res ^ a; \ |
| } \ |
| a = a << 1; \ |
| b = b >> 1; \ |
| } \ |
| return res; \ |
| } |
| DEF_GALOIS_MULTIPLY(8, 16) |
| DEF_GALOIS_MULTIPLY(16, 32) |
| DEF_GALOIS_MULTIPLY(32, 64) |
| |
| static S390Vector galois_multiply64(uint64_t a, uint64_t b) |
| { |
| S390Vector res = {}; |
| S390Vector va = { |
| .doubleword[1] = a, |
| }; |
| S390Vector vb = { |
| .doubleword[1] = b, |
| }; |
| |
| while (!s390_vec_is_zero(&vb)) { |
| if (vb.doubleword[1] & 0x1) { |
| s390_vec_xor(&res, &res, &va); |
| } |
| s390_vec_shl(&va, &va, 1); |
| s390_vec_shr(&vb, &vb, 1); |
| } |
| return res; |
| } |
| |
| #define DEF_VGFM(BITS, TBITS) \ |
| void HELPER(gvec_vgfm##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / TBITS); i++) { \ |
| uint##BITS##_t a = s390_vec_read_element##BITS(v2, i * 2); \ |
| uint##BITS##_t b = s390_vec_read_element##BITS(v3, i * 2); \ |
| uint##TBITS##_t d = galois_multiply##BITS(a, b); \ |
| \ |
| a = s390_vec_read_element##BITS(v2, i * 2 + 1); \ |
| b = s390_vec_read_element##BITS(v3, i * 2 + 1); \ |
| d = d ^ galois_multiply32(a, b); \ |
| s390_vec_write_element##TBITS(v1, i, d); \ |
| } \ |
| } |
| DEF_VGFM(8, 16) |
| DEF_VGFM(16, 32) |
| DEF_VGFM(32, 64) |
| |
| void HELPER(gvec_vgfm64)(void *v1, const void *v2, const void *v3, |
| uint32_t desc) |
| { |
| S390Vector tmp1, tmp2; |
| uint64_t a, b; |
| |
| a = s390_vec_read_element64(v2, 0); |
| b = s390_vec_read_element64(v3, 0); |
| tmp1 = galois_multiply64(a, b); |
| a = s390_vec_read_element64(v2, 1); |
| b = s390_vec_read_element64(v3, 1); |
| tmp2 = galois_multiply64(a, b); |
| s390_vec_xor(v1, &tmp1, &tmp2); |
| } |
| |
| #define DEF_VGFMA(BITS, TBITS) \ |
| void HELPER(gvec_vgfma##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / TBITS); i++) { \ |
| uint##BITS##_t a = s390_vec_read_element##BITS(v2, i * 2); \ |
| uint##BITS##_t b = s390_vec_read_element##BITS(v3, i * 2); \ |
| uint##TBITS##_t d = galois_multiply##BITS(a, b); \ |
| \ |
| a = s390_vec_read_element##BITS(v2, i * 2 + 1); \ |
| b = s390_vec_read_element##BITS(v3, i * 2 + 1); \ |
| d = d ^ galois_multiply32(a, b); \ |
| d = d ^ s390_vec_read_element##TBITS(v4, i); \ |
| s390_vec_write_element##TBITS(v1, i, d); \ |
| } \ |
| } |
| DEF_VGFMA(8, 16) |
| DEF_VGFMA(16, 32) |
| DEF_VGFMA(32, 64) |
| |
| void HELPER(gvec_vgfma64)(void *v1, const void *v2, const void *v3, |
| const void *v4, uint32_t desc) |
| { |
| S390Vector tmp1, tmp2; |
| uint64_t a, b; |
| |
| a = s390_vec_read_element64(v2, 0); |
| b = s390_vec_read_element64(v3, 0); |
| tmp1 = galois_multiply64(a, b); |
| a = s390_vec_read_element64(v2, 1); |
| b = s390_vec_read_element64(v3, 1); |
| tmp2 = galois_multiply64(a, b); |
| s390_vec_xor(&tmp1, &tmp1, &tmp2); |
| s390_vec_xor(v1, &tmp1, v4); |
| } |
| |
| #define DEF_VMAL(BITS) \ |
| void HELPER(gvec_vmal##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| const uint##BITS##_t b = s390_vec_read_element##BITS(v3, i); \ |
| const uint##BITS##_t c = s390_vec_read_element##BITS(v4, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, a * b + c); \ |
| } \ |
| } |
| DEF_VMAL(8) |
| DEF_VMAL(16) |
| |
| #define DEF_VMAH(BITS) \ |
| void HELPER(gvec_vmah##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const int32_t a = (int##BITS##_t)s390_vec_read_element##BITS(v2, i); \ |
| const int32_t b = (int##BITS##_t)s390_vec_read_element##BITS(v3, i); \ |
| const int32_t c = (int##BITS##_t)s390_vec_read_element##BITS(v4, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, (a * b + c) >> BITS); \ |
| } \ |
| } |
| DEF_VMAH(8) |
| DEF_VMAH(16) |
| |
| #define DEF_VMALH(BITS) \ |
| void HELPER(gvec_vmalh##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| const uint##BITS##_t b = s390_vec_read_element##BITS(v3, i); \ |
| const uint##BITS##_t c = s390_vec_read_element##BITS(v4, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, (a * b + c) >> BITS); \ |
| } \ |
| } |
| DEF_VMALH(8) |
| DEF_VMALH(16) |
| |
| #define DEF_VMAE(BITS, TBITS) \ |
| void HELPER(gvec_vmae##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 0; i < (128 / TBITS); i++, j += 2) { \ |
| int##TBITS##_t a = (int##BITS##_t)s390_vec_read_element##BITS(v2, j); \ |
| int##TBITS##_t b = (int##BITS##_t)s390_vec_read_element##BITS(v3, j); \ |
| int##TBITS##_t c = (int##BITS##_t)s390_vec_read_element##BITS(v4, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b + c); \ |
| } \ |
| } |
| DEF_VMAE(8, 16) |
| DEF_VMAE(16, 32) |
| DEF_VMAE(32, 64) |
| |
| #define DEF_VMALE(BITS, TBITS) \ |
| void HELPER(gvec_vmale##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 0; i < (128 / TBITS); i++, j += 2) { \ |
| uint##TBITS##_t a = s390_vec_read_element##BITS(v2, j); \ |
| uint##TBITS##_t b = s390_vec_read_element##BITS(v3, j); \ |
| uint##TBITS##_t c = s390_vec_read_element##BITS(v4, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b + c); \ |
| } \ |
| } |
| DEF_VMALE(8, 16) |
| DEF_VMALE(16, 32) |
| DEF_VMALE(32, 64) |
| |
| #define DEF_VMAO(BITS, TBITS) \ |
| void HELPER(gvec_vmao##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 1; i < (128 / TBITS); i++, j += 2) { \ |
| int##TBITS##_t a = (int##BITS##_t)s390_vec_read_element##BITS(v2, j); \ |
| int##TBITS##_t b = (int##BITS##_t)s390_vec_read_element##BITS(v3, j); \ |
| int##TBITS##_t c = (int##BITS##_t)s390_vec_read_element##BITS(v4, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b + c); \ |
| } \ |
| } |
| DEF_VMAO(8, 16) |
| DEF_VMAO(16, 32) |
| DEF_VMAO(32, 64) |
| |
| #define DEF_VMALO(BITS, TBITS) \ |
| void HELPER(gvec_vmalo##BITS)(void *v1, const void *v2, const void *v3, \ |
| const void *v4, uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 1; i < (128 / TBITS); i++, j += 2) { \ |
| uint##TBITS##_t a = s390_vec_read_element##BITS(v2, j); \ |
| uint##TBITS##_t b = s390_vec_read_element##BITS(v3, j); \ |
| uint##TBITS##_t c = s390_vec_read_element##BITS(v4, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b + c); \ |
| } \ |
| } |
| DEF_VMALO(8, 16) |
| DEF_VMALO(16, 32) |
| DEF_VMALO(32, 64) |
| |
| #define DEF_VMH(BITS) \ |
| void HELPER(gvec_vmh##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const int32_t a = (int##BITS##_t)s390_vec_read_element##BITS(v2, i); \ |
| const int32_t b = (int##BITS##_t)s390_vec_read_element##BITS(v3, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, (a * b) >> BITS); \ |
| } \ |
| } |
| DEF_VMH(8) |
| DEF_VMH(16) |
| |
| #define DEF_VMLH(BITS) \ |
| void HELPER(gvec_vmlh##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| const uint##BITS##_t b = s390_vec_read_element##BITS(v3, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, (a * b) >> BITS); \ |
| } \ |
| } |
| DEF_VMLH(8) |
| DEF_VMLH(16) |
| |
| #define DEF_VME(BITS, TBITS) \ |
| void HELPER(gvec_vme##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 0; i < (128 / TBITS); i++, j += 2) { \ |
| int##TBITS##_t a = (int##BITS##_t)s390_vec_read_element##BITS(v2, j); \ |
| int##TBITS##_t b = (int##BITS##_t)s390_vec_read_element##BITS(v3, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b); \ |
| } \ |
| } |
| DEF_VME(8, 16) |
| DEF_VME(16, 32) |
| DEF_VME(32, 64) |
| |
| #define DEF_VMLE(BITS, TBITS) \ |
| void HELPER(gvec_vmle##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 0; i < (128 / TBITS); i++, j += 2) { \ |
| const uint##TBITS##_t a = s390_vec_read_element##BITS(v2, j); \ |
| const uint##TBITS##_t b = s390_vec_read_element##BITS(v3, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b); \ |
| } \ |
| } |
| DEF_VMLE(8, 16) |
| DEF_VMLE(16, 32) |
| DEF_VMLE(32, 64) |
| |
| #define DEF_VMO(BITS, TBITS) \ |
| void HELPER(gvec_vmo##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 1; i < (128 / TBITS); i++, j += 2) { \ |
| int##TBITS##_t a = (int##BITS##_t)s390_vec_read_element##BITS(v2, j); \ |
| int##TBITS##_t b = (int##BITS##_t)s390_vec_read_element##BITS(v3, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b); \ |
| } \ |
| } |
| DEF_VMO(8, 16) |
| DEF_VMO(16, 32) |
| DEF_VMO(32, 64) |
| |
| #define DEF_VMLO(BITS, TBITS) \ |
| void HELPER(gvec_vmlo##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i, j; \ |
| \ |
| for (i = 0, j = 0; i < (128 / TBITS); i++, j += 2) { \ |
| const uint##TBITS##_t a = s390_vec_read_element##BITS(v2, j); \ |
| const uint##TBITS##_t b = s390_vec_read_element##BITS(v3, j); \ |
| \ |
| s390_vec_write_element##TBITS(v1, i, a * b); \ |
| } \ |
| } |
| DEF_VMLO(8, 16) |
| DEF_VMLO(16, 32) |
| DEF_VMLO(32, 64) |
| |
| #define DEF_VPOPCT(BITS) \ |
| void HELPER(gvec_vpopct##BITS)(void *v1, const void *v2, uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, ctpop32(a)); \ |
| } \ |
| } |
| DEF_VPOPCT(8) |
| DEF_VPOPCT(16) |
| |
| #define DEF_VERLLV(BITS) \ |
| void HELPER(gvec_verllv##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| const uint##BITS##_t b = s390_vec_read_element##BITS(v3, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, rol##BITS(a, b)); \ |
| } \ |
| } |
| DEF_VERLLV(8) |
| DEF_VERLLV(16) |
| |
| #define DEF_VERLL(BITS) \ |
| void HELPER(gvec_verll##BITS)(void *v1, const void *v2, uint64_t count, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, rol##BITS(a, count)); \ |
| } \ |
| } |
| DEF_VERLL(8) |
| DEF_VERLL(16) |
| |
| #define DEF_VERIM(BITS) \ |
| void HELPER(gvec_verim##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| const uint8_t count = simd_data(desc); \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v1, i); \ |
| const uint##BITS##_t b = s390_vec_read_element##BITS(v2, i); \ |
| const uint##BITS##_t mask = s390_vec_read_element##BITS(v3, i); \ |
| const uint##BITS##_t d = (a & ~mask) | (rol##BITS(b, count) & mask); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, d); \ |
| } \ |
| } |
| DEF_VERIM(8) |
| DEF_VERIM(16) |
| |
| void HELPER(gvec_vsl)(void *v1, const void *v2, uint64_t count, |
| uint32_t desc) |
| { |
| s390_vec_shl(v1, v2, count); |
| } |
| |
| void HELPER(gvec_vsra)(void *v1, const void *v2, uint64_t count, |
| uint32_t desc) |
| { |
| s390_vec_sar(v1, v2, count); |
| } |
| |
| void HELPER(gvec_vsrl)(void *v1, const void *v2, uint64_t count, |
| uint32_t desc) |
| { |
| s390_vec_shr(v1, v2, count); |
| } |
| |
| #define DEF_VSCBI(BITS) \ |
| void HELPER(gvec_vscbi##BITS)(void *v1, const void *v2, const void *v3, \ |
| uint32_t desc) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < (128 / BITS); i++) { \ |
| const uint##BITS##_t a = s390_vec_read_element##BITS(v2, i); \ |
| const uint##BITS##_t b = s390_vec_read_element##BITS(v3, i); \ |
| \ |
| s390_vec_write_element##BITS(v1, i, a < b); \ |
| } \ |
| } |
| DEF_VSCBI(8) |
| DEF_VSCBI(16) |
| |
| void HELPER(gvec_vtm)(void *v1, const void *v2, CPUS390XState *env, |
| uint32_t desc) |
| { |
| S390Vector tmp; |
| |
| s390_vec_and(&tmp, v1, v2); |
| if (s390_vec_is_zero(&tmp)) { |
| /* Selected bits all zeros; or all mask bits zero */ |
| env->cc_op = 0; |
| } else if (s390_vec_equal(&tmp, v2)) { |
| /* Selected bits all ones */ |
| env->cc_op = 3; |
| } else { |
| /* Selected bits a mix of zeros and ones */ |
| env->cc_op = 1; |
| } |
| } |
