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/*
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* ARM micro operations
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2005-2007 CodeSourcery, LLC
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "exec.h" |
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void OPPROTO op_addl_T0_T1_cc(void) |
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{
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unsigned int src1; |
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src1 = T0; |
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T0 += T1; |
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env->NZF = T0; |
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env->CF = T0 < src1; |
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env->VF = (src1 ^ T1 ^ -1) & (src1 ^ T0);
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} |
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void OPPROTO op_adcl_T0_T1_cc(void) |
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{
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unsigned int src1; |
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src1 = T0; |
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if (!env->CF) {
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T0 += T1; |
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env->CF = T0 < src1; |
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} else {
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T0 += T1 + 1;
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env->CF = T0 <= src1; |
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} |
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env->VF = (src1 ^ T1 ^ -1) & (src1 ^ T0);
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env->NZF = T0; |
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FORCE_RET(); |
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} |
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|
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#define OPSUB(sub, sbc, res, T0, T1) \
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\ |
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void OPPROTO op_ ## sub ## l_T0_T1_cc(void) \ |
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{ \
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unsigned int src1; \ |
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src1 = T0; \ |
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T0 -= T1; \ |
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env->NZF = T0; \ |
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env->CF = src1 >= T1; \ |
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env->VF = (src1 ^ T1) & (src1 ^ T0); \ |
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res = T0; \ |
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} \ |
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\ |
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void OPPROTO op_ ## sbc ## l_T0_T1(void) \ |
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{ \
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res = T0 - T1 + env->CF - 1; \
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} \ |
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\ |
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void OPPROTO op_ ## sbc ## l_T0_T1_cc(void) \ |
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{ \
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unsigned int src1; \ |
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src1 = T0; \ |
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if (!env->CF) { \
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T0 = T0 - T1 - 1; \
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env->CF = src1 > T1; \ |
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} else { \
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T0 = T0 - T1; \ |
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env->CF = src1 >= T1; \ |
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} \ |
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env->VF = (src1 ^ T1) & (src1 ^ T0); \ |
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env->NZF = T0; \ |
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res = T0; \ |
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FORCE_RET(); \ |
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} |
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|
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OPSUB(sub, sbc, T0, T0, T1) |
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|
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OPSUB(rsb, rsc, T0, T1, T0) |
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|
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#define EIP (env->regs[15]) |
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|
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void OPPROTO op_test_eq(void) |
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{
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if (env->NZF == 0) |
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GOTO_LABEL_PARAM(1);;
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_test_ne(void) |
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{
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if (env->NZF != 0) |
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GOTO_LABEL_PARAM(1);;
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_test_cs(void) |
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{
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if (env->CF != 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_test_cc(void) |
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{
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if (env->CF == 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_test_mi(void) |
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{
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if ((env->NZF & 0x80000000) != 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_test_pl(void) |
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{
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if ((env->NZF & 0x80000000) == 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_test_vs(void) |
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{
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if ((env->VF & 0x80000000) != 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_test_vc(void) |
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{
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if ((env->VF & 0x80000000) == 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_test_hi(void) |
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{
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if (env->CF != 0 && env->NZF != 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_test_ls(void) |
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{
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if (env->CF == 0 || env->NZF == 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_test_ge(void) |
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{
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if (((env->VF ^ env->NZF) & 0x80000000) == 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_test_lt(void) |
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{
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if (((env->VF ^ env->NZF) & 0x80000000) != 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_test_gt(void) |
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{
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if (env->NZF != 0 && ((env->VF ^ env->NZF) & 0x80000000) == 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_test_le(void) |
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{
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if (env->NZF == 0 || ((env->VF ^ env->NZF) & 0x80000000) != 0) |
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_test_T0(void) |
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{
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if (T0)
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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void OPPROTO op_testn_T0(void) |
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{
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if (!T0)
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GOTO_LABEL_PARAM(1);
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_movl_T0_cpsr(void) |
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{
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/* Execution state bits always read as zero. */
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T0 = cpsr_read(env) & ~CPSR_EXEC; |
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_movl_T0_spsr(void) |
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{
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T0 = env->spsr; |
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} |
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void OPPROTO op_movl_spsr_T0(void) |
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{
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uint32_t mask = PARAM1; |
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env->spsr = (env->spsr & ~mask) | (T0 & mask); |
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} |
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void OPPROTO op_movl_cpsr_T0(void) |
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{
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cpsr_write(env, T0, PARAM1); |
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_mul_T0_T1(void) |
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{
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T0 = T0 * T1; |
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} |
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/* 64 bit unsigned mul */
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void OPPROTO op_mull_T0_T1(void) |
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{
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uint64_t res; |
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res = (uint64_t)T0 * (uint64_t)T1; |
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T1 = res >> 32;
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T0 = res; |
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} |
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/* 64 bit signed mul */
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void OPPROTO op_imull_T0_T1(void) |
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{
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uint64_t res; |
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res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1); |
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T1 = res >> 32;
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T0 = res; |
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} |
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/* 48 bit signed mul, top 32 bits */
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void OPPROTO op_imulw_T0_T1(void) |
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{
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uint64_t res; |
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res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1); |
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T0 = res >> 16;
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} |
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void OPPROTO op_addq_T0_T1(void) |
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{
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uint64_t res; |
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res = ((uint64_t)T1 << 32) | T0;
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res += ((uint64_t)(env->regs[PARAM2]) << 32) | (env->regs[PARAM1]);
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T1 = res >> 32;
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T0 = res; |
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} |
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|
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void OPPROTO op_addq_lo_T0_T1(void) |
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{
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uint64_t res; |
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res = ((uint64_t)T1 << 32) | T0;
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res += (uint64_t)(env->regs[PARAM1]); |
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T1 = res >> 32;
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T0 = res; |
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} |
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/* Dual 16-bit accumulate. */
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void OPPROTO op_addq_T0_T1_dual(void) |
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{
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uint64_t res; |
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res = ((uint64_t)(env->regs[PARAM2]) << 32) | (env->regs[PARAM1]);
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res += (int32_t)T0; |
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res += (int32_t)T1; |
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env->regs[PARAM1] = (uint32_t)res; |
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env->regs[PARAM2] = res >> 32;
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} |
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/* Dual 16-bit subtract accumulate. */
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void OPPROTO op_subq_T0_T1_dual(void) |
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{
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uint64_t res; |
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res = ((uint64_t)(env->regs[PARAM2]) << 32) | (env->regs[PARAM1]);
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res += (int32_t)T0; |
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res -= (int32_t)T1; |
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env->regs[PARAM1] = (uint32_t)res; |
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env->regs[PARAM2] = res >> 32;
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} |
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void OPPROTO op_logicq_cc(void) |
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{
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env->NZF = (T1 & 0x80000000) | ((T0 | T1) != 0); |
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} |
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/* memory access */
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#define MEMSUFFIX _raw
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#include "op_mem.h" |
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|
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#if !defined(CONFIG_USER_ONLY)
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#define MEMSUFFIX _user
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#include "op_mem.h" |
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#define MEMSUFFIX _kernel
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#include "op_mem.h" |
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#endif
|
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|
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void OPPROTO op_clrex(void) |
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{
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cpu_lock(); |
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helper_clrex(env); |
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cpu_unlock(); |
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} |
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|
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/* shifts */
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/* T1 based, set C flag */
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void OPPROTO op_shll_T1_im_cc(void) |
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{
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env->CF = (T1 >> (32 - PARAM1)) & 1; |
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T1 = T1 << PARAM1; |
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} |
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void OPPROTO op_shrl_T1_im_cc(void) |
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{
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env->CF = (T1 >> (PARAM1 - 1)) & 1; |
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T1 = (uint32_t)T1 >> PARAM1; |
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} |
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|
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void OPPROTO op_shrl_T1_0_cc(void) |
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{
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env->CF = (T1 >> 31) & 1; |
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T1 = 0;
|
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} |
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|
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void OPPROTO op_sarl_T1_im_cc(void) |
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{
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env->CF = (T1 >> (PARAM1 - 1)) & 1; |
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T1 = (int32_t)T1 >> PARAM1; |
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} |
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|
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void OPPROTO op_sarl_T1_0_cc(void) |
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{
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env->CF = (T1 >> 31) & 1; |
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T1 = (int32_t)T1 >> 31;
|
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} |
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|
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void OPPROTO op_rorl_T1_im_cc(void) |
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{
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int shift;
|
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shift = PARAM1; |
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env->CF = (T1 >> (shift - 1)) & 1; |
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T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
|
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} |
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|
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void OPPROTO op_rrxl_T1_cc(void) |
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{
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uint32_t c; |
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c = T1 & 1;
|
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T1 = ((uint32_t)T1 >> 1) | ((uint32_t)env->CF << 31); |
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env->CF = c; |
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} |
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|
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/* T1 based, use T0 as shift count */
|
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|
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void OPPROTO op_shll_T1_T0(void) |
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{
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int shift;
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shift = T0 & 0xff;
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if (shift >= 32) |
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T1 = 0;
|
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else
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T1 = T1 << shift; |
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FORCE_RET(); |
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} |
| 381 |
|
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void OPPROTO op_shrl_T1_T0(void) |
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{
|
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int shift;
|
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shift = T0 & 0xff;
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if (shift >= 32) |
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T1 = 0;
|
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else
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T1 = (uint32_t)T1 >> shift; |
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FORCE_RET(); |
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} |
| 392 |
|
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void OPPROTO op_sarl_T1_T0(void) |
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{
|
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int shift;
|
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shift = T0 & 0xff;
|
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if (shift >= 32) |
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shift = 31;
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T1 = (int32_t)T1 >> shift; |
| 400 |
} |
| 401 |
|
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void OPPROTO op_rorl_T1_T0(void) |
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{
|
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int shift;
|
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shift = T0 & 0x1f;
|
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if (shift) {
|
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T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
|
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} |
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FORCE_RET(); |
| 410 |
} |
| 411 |
|
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/* T1 based, use T0 as shift count and compute CF */
|
| 413 |
|
| 414 |
void OPPROTO op_shll_T1_T0_cc(void) |
| 415 |
{
|
| 416 |
int shift;
|
| 417 |
shift = T0 & 0xff;
|
| 418 |
if (shift >= 32) { |
| 419 |
if (shift == 32) |
| 420 |
env->CF = T1 & 1;
|
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else
|
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env->CF = 0;
|
| 423 |
T1 = 0;
|
| 424 |
} else if (shift != 0) { |
| 425 |
env->CF = (T1 >> (32 - shift)) & 1; |
| 426 |
T1 = T1 << shift; |
| 427 |
} |
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FORCE_RET(); |
| 429 |
} |
| 430 |
|
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void OPPROTO op_shrl_T1_T0_cc(void) |
| 432 |
{
|
| 433 |
int shift;
|
| 434 |
shift = T0 & 0xff;
|
| 435 |
if (shift >= 32) { |
| 436 |
if (shift == 32) |
| 437 |
env->CF = (T1 >> 31) & 1; |
| 438 |
else
|
| 439 |
env->CF = 0;
|
| 440 |
T1 = 0;
|
| 441 |
} else if (shift != 0) { |
| 442 |
env->CF = (T1 >> (shift - 1)) & 1; |
| 443 |
T1 = (uint32_t)T1 >> shift; |
| 444 |
} |
| 445 |
FORCE_RET(); |
| 446 |
} |
| 447 |
|
| 448 |
void OPPROTO op_sarl_T1_T0_cc(void) |
| 449 |
{
|
| 450 |
int shift;
|
| 451 |
shift = T0 & 0xff;
|
| 452 |
if (shift >= 32) { |
| 453 |
env->CF = (T1 >> 31) & 1; |
| 454 |
T1 = (int32_t)T1 >> 31;
|
| 455 |
} else if (shift != 0) { |
| 456 |
env->CF = (T1 >> (shift - 1)) & 1; |
| 457 |
T1 = (int32_t)T1 >> shift; |
| 458 |
} |
| 459 |
FORCE_RET(); |
| 460 |
} |
| 461 |
|
| 462 |
void OPPROTO op_rorl_T1_T0_cc(void) |
| 463 |
{
|
| 464 |
int shift1, shift;
|
| 465 |
shift1 = T0 & 0xff;
|
| 466 |
shift = shift1 & 0x1f;
|
| 467 |
if (shift == 0) { |
| 468 |
if (shift1 != 0) |
| 469 |
env->CF = (T1 >> 31) & 1; |
| 470 |
} else {
|
| 471 |
env->CF = (T1 >> (shift - 1)) & 1; |
| 472 |
T1 = ((uint32_t)T1 >> shift) | (T1 << (32 - shift));
|
| 473 |
} |
| 474 |
FORCE_RET(); |
| 475 |
} |
| 476 |
|
| 477 |
/* misc */
|
| 478 |
#define SIGNBIT (uint32_t)0x80000000 |
| 479 |
/* saturating arithmetic */
|
| 480 |
void OPPROTO op_addl_T0_T1_setq(void) |
| 481 |
{
|
| 482 |
uint32_t res; |
| 483 |
|
| 484 |
res = T0 + T1; |
| 485 |
if (((res ^ T0) & SIGNBIT) && !((T0 ^ T1) & SIGNBIT))
|
| 486 |
env->QF = 1;
|
| 487 |
|
| 488 |
T0 = res; |
| 489 |
FORCE_RET(); |
| 490 |
} |
| 491 |
|
| 492 |
void OPPROTO op_addl_T0_T1_saturate(void) |
| 493 |
{
|
| 494 |
uint32_t res; |
| 495 |
|
| 496 |
res = T0 + T1; |
| 497 |
if (((res ^ T0) & SIGNBIT) && !((T0 ^ T1) & SIGNBIT)) {
|
| 498 |
env->QF = 1;
|
| 499 |
if (T0 & SIGNBIT)
|
| 500 |
T0 = 0x80000000;
|
| 501 |
else
|
| 502 |
T0 = 0x7fffffff;
|
| 503 |
} |
| 504 |
else
|
| 505 |
T0 = res; |
| 506 |
|
| 507 |
FORCE_RET(); |
| 508 |
} |
| 509 |
|
| 510 |
void OPPROTO op_subl_T0_T1_saturate(void) |
| 511 |
{
|
| 512 |
uint32_t res; |
| 513 |
|
| 514 |
res = T0 - T1; |
| 515 |
if (((res ^ T0) & SIGNBIT) && ((T0 ^ T1) & SIGNBIT)) {
|
| 516 |
env->QF = 1;
|
| 517 |
if (T0 & SIGNBIT)
|
| 518 |
T0 = 0x80000000;
|
| 519 |
else
|
| 520 |
T0 = 0x7fffffff;
|
| 521 |
} |
| 522 |
else
|
| 523 |
T0 = res; |
| 524 |
|
| 525 |
FORCE_RET(); |
| 526 |
} |
| 527 |
|
| 528 |
void OPPROTO op_double_T1_saturate(void) |
| 529 |
{
|
| 530 |
int32_t val; |
| 531 |
|
| 532 |
val = T1; |
| 533 |
if (val >= 0x40000000) { |
| 534 |
T1 = 0x7fffffff;
|
| 535 |
env->QF = 1;
|
| 536 |
} else if (val <= (int32_t)0xc0000000) { |
| 537 |
T1 = 0x80000000;
|
| 538 |
env->QF = 1;
|
| 539 |
} else {
|
| 540 |
T1 = val << 1;
|
| 541 |
} |
| 542 |
FORCE_RET(); |
| 543 |
} |
| 544 |
|
| 545 |
/* Unsigned saturating arithmetic for NEON. */
|
| 546 |
void OPPROTO op_addl_T0_T1_usaturate(void) |
| 547 |
{
|
| 548 |
uint32_t res; |
| 549 |
|
| 550 |
res = T0 + T1; |
| 551 |
if (res < T0) {
|
| 552 |
env->QF = 1;
|
| 553 |
T0 = 0xffffffff;
|
| 554 |
} else {
|
| 555 |
T0 = res; |
| 556 |
} |
| 557 |
|
| 558 |
FORCE_RET(); |
| 559 |
} |
| 560 |
|
| 561 |
void OPPROTO op_subl_T0_T1_usaturate(void) |
| 562 |
{
|
| 563 |
uint32_t res; |
| 564 |
|
| 565 |
res = T0 - T1; |
| 566 |
if (res > T0) {
|
| 567 |
env->QF = 1;
|
| 568 |
T0 = 0;
|
| 569 |
} else {
|
| 570 |
T0 = res; |
| 571 |
} |
| 572 |
|
| 573 |
FORCE_RET(); |
| 574 |
} |
| 575 |
|
| 576 |
/* Thumb shift by immediate */
|
| 577 |
void OPPROTO op_shll_T0_im_thumb_cc(void) |
| 578 |
{
|
| 579 |
int shift;
|
| 580 |
shift = PARAM1; |
| 581 |
if (shift != 0) { |
| 582 |
env->CF = (T0 >> (32 - shift)) & 1; |
| 583 |
T0 = T0 << shift; |
| 584 |
} |
| 585 |
env->NZF = T0; |
| 586 |
FORCE_RET(); |
| 587 |
} |
| 588 |
|
| 589 |
void OPPROTO op_shll_T0_im_thumb(void) |
| 590 |
{
|
| 591 |
T0 = T0 << PARAM1; |
| 592 |
FORCE_RET(); |
| 593 |
} |
| 594 |
|
| 595 |
void OPPROTO op_shrl_T0_im_thumb_cc(void) |
| 596 |
{
|
| 597 |
int shift;
|
| 598 |
|
| 599 |
shift = PARAM1; |
| 600 |
if (shift == 0) { |
| 601 |
env->CF = ((uint32_t)T0) >> 31;
|
| 602 |
T0 = 0;
|
| 603 |
} else {
|
| 604 |
env->CF = (T0 >> (shift - 1)) & 1; |
| 605 |
T0 = T0 >> shift; |
| 606 |
} |
| 607 |
env->NZF = T0; |
| 608 |
FORCE_RET(); |
| 609 |
} |
| 610 |
|
| 611 |
void OPPROTO op_shrl_T0_im_thumb(void) |
| 612 |
{
|
| 613 |
int shift;
|
| 614 |
|
| 615 |
shift = PARAM1; |
| 616 |
if (shift == 0) { |
| 617 |
T0 = 0;
|
| 618 |
} else {
|
| 619 |
T0 = T0 >> shift; |
| 620 |
} |
| 621 |
FORCE_RET(); |
| 622 |
} |
| 623 |
|
| 624 |
void OPPROTO op_sarl_T0_im_thumb_cc(void) |
| 625 |
{
|
| 626 |
int shift;
|
| 627 |
|
| 628 |
shift = PARAM1; |
| 629 |
if (shift == 0) { |
| 630 |
T0 = ((int32_t)T0) >> 31;
|
| 631 |
env->CF = T0 & 1;
|
| 632 |
} else {
|
| 633 |
env->CF = (T0 >> (shift - 1)) & 1; |
| 634 |
T0 = ((int32_t)T0) >> shift; |
| 635 |
} |
| 636 |
env->NZF = T0; |
| 637 |
FORCE_RET(); |
| 638 |
} |
| 639 |
|
| 640 |
void OPPROTO op_sarl_T0_im_thumb(void) |
| 641 |
{
|
| 642 |
int shift;
|
| 643 |
|
| 644 |
shift = PARAM1; |
| 645 |
if (shift == 0) { |
| 646 |
env->CF = T0 & 1;
|
| 647 |
} else {
|
| 648 |
T0 = ((int32_t)T0) >> shift; |
| 649 |
} |
| 650 |
FORCE_RET(); |
| 651 |
} |
| 652 |
|
| 653 |
/* exceptions */
|
| 654 |
|
| 655 |
void OPPROTO op_swi(void) |
| 656 |
{
|
| 657 |
env->exception_index = EXCP_SWI; |
| 658 |
cpu_loop_exit(); |
| 659 |
} |
| 660 |
|
| 661 |
void OPPROTO op_undef_insn(void) |
| 662 |
{
|
| 663 |
env->exception_index = EXCP_UDEF; |
| 664 |
cpu_loop_exit(); |
| 665 |
} |
| 666 |
|
| 667 |
void OPPROTO op_debug(void) |
| 668 |
{
|
| 669 |
env->exception_index = EXCP_DEBUG; |
| 670 |
cpu_loop_exit(); |
| 671 |
} |
| 672 |
|
| 673 |
void OPPROTO op_wfi(void) |
| 674 |
{
|
| 675 |
env->exception_index = EXCP_HLT; |
| 676 |
env->halted = 1;
|
| 677 |
cpu_loop_exit(); |
| 678 |
} |
| 679 |
|
| 680 |
void OPPROTO op_bkpt(void) |
| 681 |
{
|
| 682 |
env->exception_index = EXCP_BKPT; |
| 683 |
cpu_loop_exit(); |
| 684 |
} |
| 685 |
|
| 686 |
void OPPROTO op_exception_exit(void) |
| 687 |
{
|
| 688 |
env->exception_index = EXCP_EXCEPTION_EXIT; |
| 689 |
cpu_loop_exit(); |
| 690 |
} |
| 691 |
|
| 692 |
/* VFP support. We follow the convention used for VFP instrunctions:
|
| 693 |
Single precition routines have a "s" suffix, double precision a
|
| 694 |
"d" suffix. */
|
| 695 |
|
| 696 |
#define VFP_OP(name, p) void OPPROTO op_vfp_##name##p(void) |
| 697 |
|
| 698 |
#define VFP_BINOP(name) \
|
| 699 |
VFP_OP(name, s) \ |
| 700 |
{ \
|
| 701 |
FT0s = float32_ ## name (FT0s, FT1s, &env->vfp.fp_status); \ |
| 702 |
} \ |
| 703 |
VFP_OP(name, d) \ |
| 704 |
{ \
|
| 705 |
FT0d = float64_ ## name (FT0d, FT1d, &env->vfp.fp_status); \ |
| 706 |
} |
| 707 |
VFP_BINOP(add) |
| 708 |
VFP_BINOP(sub) |
| 709 |
VFP_BINOP(mul) |
| 710 |
VFP_BINOP(div) |
| 711 |
#undef VFP_BINOP
|
| 712 |
|
| 713 |
#define VFP_HELPER(name) \
|
| 714 |
VFP_OP(name, s) \ |
| 715 |
{ \
|
| 716 |
do_vfp_##name##s(); \ |
| 717 |
} \ |
| 718 |
VFP_OP(name, d) \ |
| 719 |
{ \
|
| 720 |
do_vfp_##name##d(); \ |
| 721 |
} |
| 722 |
VFP_HELPER(abs) |
| 723 |
VFP_HELPER(sqrt) |
| 724 |
VFP_HELPER(cmp) |
| 725 |
VFP_HELPER(cmpe) |
| 726 |
#undef VFP_HELPER
|
| 727 |
|
| 728 |
/* XXX: Will this do the right thing for NANs. Should invert the signbit
|
| 729 |
without looking at the rest of the value. */
|
| 730 |
VFP_OP(neg, s) |
| 731 |
{
|
| 732 |
FT0s = float32_chs(FT0s); |
| 733 |
} |
| 734 |
|
| 735 |
VFP_OP(neg, d) |
| 736 |
{
|
| 737 |
FT0d = float64_chs(FT0d); |
| 738 |
} |
| 739 |
|
| 740 |
VFP_OP(F1_ld0, s) |
| 741 |
{
|
| 742 |
union {
|
| 743 |
uint32_t i; |
| 744 |
float32 s; |
| 745 |
} v; |
| 746 |
v.i = 0;
|
| 747 |
FT1s = v.s; |
| 748 |
} |
| 749 |
|
| 750 |
VFP_OP(F1_ld0, d) |
| 751 |
{
|
| 752 |
union {
|
| 753 |
uint64_t i; |
| 754 |
float64 d; |
| 755 |
} v; |
| 756 |
v.i = 0;
|
| 757 |
FT1d = v.d; |
| 758 |
} |
| 759 |
|
| 760 |
/* Helper routines to perform bitwise copies between float and int. */
|
| 761 |
static inline float32 vfp_itos(uint32_t i) |
| 762 |
{
|
| 763 |
union {
|
| 764 |
uint32_t i; |
| 765 |
float32 s; |
| 766 |
} v; |
| 767 |
|
| 768 |
v.i = i; |
| 769 |
return v.s;
|
| 770 |
} |
| 771 |
|
| 772 |
static inline uint32_t vfp_stoi(float32 s) |
| 773 |
{
|
| 774 |
union {
|
| 775 |
uint32_t i; |
| 776 |
float32 s; |
| 777 |
} v; |
| 778 |
|
| 779 |
v.s = s; |
| 780 |
return v.i;
|
| 781 |
} |
| 782 |
|
| 783 |
static inline float64 vfp_itod(uint64_t i) |
| 784 |
{
|
| 785 |
union {
|
| 786 |
uint64_t i; |
| 787 |
float64 d; |
| 788 |
} v; |
| 789 |
|
| 790 |
v.i = i; |
| 791 |
return v.d;
|
| 792 |
} |
| 793 |
|
| 794 |
static inline uint64_t vfp_dtoi(float64 d) |
| 795 |
{
|
| 796 |
union {
|
| 797 |
uint64_t i; |
| 798 |
float64 d; |
| 799 |
} v; |
| 800 |
|
| 801 |
v.d = d; |
| 802 |
return v.i;
|
| 803 |
} |
| 804 |
|
| 805 |
/* Integer to float conversion. */
|
| 806 |
VFP_OP(uito, s) |
| 807 |
{
|
| 808 |
FT0s = uint32_to_float32(vfp_stoi(FT0s), &env->vfp.fp_status); |
| 809 |
} |
| 810 |
|
| 811 |
VFP_OP(uito, d) |
| 812 |
{
|
| 813 |
FT0d = uint32_to_float64(vfp_stoi(FT0s), &env->vfp.fp_status); |
| 814 |
} |
| 815 |
|
| 816 |
VFP_OP(sito, s) |
| 817 |
{
|
| 818 |
FT0s = int32_to_float32(vfp_stoi(FT0s), &env->vfp.fp_status); |
| 819 |
} |
| 820 |
|
| 821 |
VFP_OP(sito, d) |
| 822 |
{
|
| 823 |
FT0d = int32_to_float64(vfp_stoi(FT0s), &env->vfp.fp_status); |
| 824 |
} |
| 825 |
|
| 826 |
/* Float to integer conversion. */
|
| 827 |
VFP_OP(toui, s) |
| 828 |
{
|
| 829 |
FT0s = vfp_itos(float32_to_uint32(FT0s, &env->vfp.fp_status)); |
| 830 |
} |
| 831 |
|
| 832 |
VFP_OP(toui, d) |
| 833 |
{
|
| 834 |
FT0s = vfp_itos(float64_to_uint32(FT0d, &env->vfp.fp_status)); |
| 835 |
} |
| 836 |
|
| 837 |
VFP_OP(tosi, s) |
| 838 |
{
|
| 839 |
FT0s = vfp_itos(float32_to_int32(FT0s, &env->vfp.fp_status)); |
| 840 |
} |
| 841 |
|
| 842 |
VFP_OP(tosi, d) |
| 843 |
{
|
| 844 |
FT0s = vfp_itos(float64_to_int32(FT0d, &env->vfp.fp_status)); |
| 845 |
} |
| 846 |
|
| 847 |
/* TODO: Set rounding mode properly. */
|
| 848 |
VFP_OP(touiz, s) |
| 849 |
{
|
| 850 |
FT0s = vfp_itos(float32_to_uint32_round_to_zero(FT0s, &env->vfp.fp_status)); |
| 851 |
} |
| 852 |
|
| 853 |
VFP_OP(touiz, d) |
| 854 |
{
|
| 855 |
FT0s = vfp_itos(float64_to_uint32_round_to_zero(FT0d, &env->vfp.fp_status)); |
| 856 |
} |
| 857 |
|
| 858 |
VFP_OP(tosiz, s) |
| 859 |
{
|
| 860 |
FT0s = vfp_itos(float32_to_int32_round_to_zero(FT0s, &env->vfp.fp_status)); |
| 861 |
} |
| 862 |
|
| 863 |
VFP_OP(tosiz, d) |
| 864 |
{
|
| 865 |
FT0s = vfp_itos(float64_to_int32_round_to_zero(FT0d, &env->vfp.fp_status)); |
| 866 |
} |
| 867 |
|
| 868 |
/* floating point conversion */
|
| 869 |
VFP_OP(fcvtd, s) |
| 870 |
{
|
| 871 |
FT0d = float32_to_float64(FT0s, &env->vfp.fp_status); |
| 872 |
} |
| 873 |
|
| 874 |
VFP_OP(fcvts, d) |
| 875 |
{
|
| 876 |
FT0s = float64_to_float32(FT0d, &env->vfp.fp_status); |
| 877 |
} |
| 878 |
|
| 879 |
/* VFP3 fixed point conversion. */
|
| 880 |
#define VFP_CONV_FIX(name, p, ftype, itype, sign) \
|
| 881 |
VFP_OP(name##to, p) \ |
| 882 |
{ \
|
| 883 |
ftype tmp; \ |
| 884 |
tmp = sign##int32_to_##ftype ((itype)vfp_##p##toi(FT0##p), \ |
| 885 |
&env->vfp.fp_status); \ |
| 886 |
FT0##p = ftype##_scalbn(tmp, PARAM1, &env->vfp.fp_status); \ |
| 887 |
} \ |
| 888 |
VFP_OP(to##name, p) \ |
| 889 |
{ \
|
| 890 |
ftype tmp; \ |
| 891 |
tmp = ftype##_scalbn(FT0##p, PARAM1, &env->vfp.fp_status); \ |
| 892 |
FT0##p = vfp_ito##p((itype)ftype##_to_##sign##int32_round_to_zero(tmp, \ |
| 893 |
&env->vfp.fp_status)); \ |
| 894 |
} |
| 895 |
|
| 896 |
VFP_CONV_FIX(sh, d, float64, int16, ) |
| 897 |
VFP_CONV_FIX(sl, d, float64, int32, ) |
| 898 |
VFP_CONV_FIX(uh, d, float64, uint16, u) |
| 899 |
VFP_CONV_FIX(ul, d, float64, uint32, u) |
| 900 |
VFP_CONV_FIX(sh, s, float32, int16, ) |
| 901 |
VFP_CONV_FIX(sl, s, float32, int32, ) |
| 902 |
VFP_CONV_FIX(uh, s, float32, uint16, u) |
| 903 |
VFP_CONV_FIX(ul, s, float32, uint32, u) |
| 904 |
|
| 905 |
/* Get and Put values from registers. */
|
| 906 |
VFP_OP(getreg_F0, d) |
| 907 |
{
|
| 908 |
FT0d = *(float64 *)((char *) env + PARAM1);
|
| 909 |
} |
| 910 |
|
| 911 |
VFP_OP(getreg_F0, s) |
| 912 |
{
|
| 913 |
FT0s = *(float32 *)((char *) env + PARAM1);
|
| 914 |
} |
| 915 |
|
| 916 |
VFP_OP(getreg_F1, d) |
| 917 |
{
|
| 918 |
FT1d = *(float64 *)((char *) env + PARAM1);
|
| 919 |
} |
| 920 |
|
| 921 |
VFP_OP(getreg_F1, s) |
| 922 |
{
|
| 923 |
FT1s = *(float32 *)((char *) env + PARAM1);
|
| 924 |
} |
| 925 |
|
| 926 |
VFP_OP(setreg_F0, d) |
| 927 |
{
|
| 928 |
*(float64 *)((char *) env + PARAM1) = FT0d;
|
| 929 |
} |
| 930 |
|
| 931 |
VFP_OP(setreg_F0, s) |
| 932 |
{
|
| 933 |
*(float32 *)((char *) env + PARAM1) = FT0s;
|
| 934 |
} |
| 935 |
|
| 936 |
void OPPROTO op_vfp_movl_T0_fpscr(void) |
| 937 |
{
|
| 938 |
do_vfp_get_fpscr (); |
| 939 |
} |
| 940 |
|
| 941 |
void OPPROTO op_vfp_movl_T0_fpscr_flags(void) |
| 942 |
{
|
| 943 |
T0 = env->vfp.xregs[ARM_VFP_FPSCR] & (0xf << 28); |
| 944 |
} |
| 945 |
|
| 946 |
void OPPROTO op_vfp_movl_fpscr_T0(void) |
| 947 |
{
|
| 948 |
do_vfp_set_fpscr(); |
| 949 |
} |
| 950 |
|
| 951 |
void OPPROTO op_vfp_movl_T0_xreg(void) |
| 952 |
{
|
| 953 |
T0 = env->vfp.xregs[PARAM1]; |
| 954 |
} |
| 955 |
|
| 956 |
void OPPROTO op_vfp_movl_xreg_T0(void) |
| 957 |
{
|
| 958 |
env->vfp.xregs[PARAM1] = T0; |
| 959 |
} |
| 960 |
|
| 961 |
/* Move between FT0s to T0 */
|
| 962 |
void OPPROTO op_vfp_mrs(void) |
| 963 |
{
|
| 964 |
T0 = vfp_stoi(FT0s); |
| 965 |
} |
| 966 |
|
| 967 |
void OPPROTO op_vfp_msr(void) |
| 968 |
{
|
| 969 |
FT0s = vfp_itos(T0); |
| 970 |
} |
| 971 |
|
| 972 |
/* Move between FT0d and {T0,T1} */
|
| 973 |
void OPPROTO op_vfp_mrrd(void) |
| 974 |
{
|
| 975 |
CPU_DoubleU u; |
| 976 |
|
| 977 |
u.d = FT0d; |
| 978 |
T0 = u.l.lower; |
| 979 |
T1 = u.l.upper; |
| 980 |
} |
| 981 |
|
| 982 |
void OPPROTO op_vfp_mdrr(void) |
| 983 |
{
|
| 984 |
CPU_DoubleU u; |
| 985 |
|
| 986 |
u.l.lower = T0; |
| 987 |
u.l.upper = T1; |
| 988 |
FT0d = u.d; |
| 989 |
} |
| 990 |
|
| 991 |
/* Load immediate. PARAM1 is the 32 most significant bits of the value. */
|
| 992 |
void OPPROTO op_vfp_fconstd(void) |
| 993 |
{
|
| 994 |
CPU_DoubleU u; |
| 995 |
u.l.upper = PARAM1; |
| 996 |
u.l.lower = 0;
|
| 997 |
FT0d = u.d; |
| 998 |
} |
| 999 |
|
| 1000 |
void OPPROTO op_vfp_fconsts(void) |
| 1001 |
{
|
| 1002 |
FT0s = vfp_itos(PARAM1); |
| 1003 |
} |
| 1004 |
|
| 1005 |
/* Copy the most significant bit of T0 to all bits of T1. */
|
| 1006 |
void OPPROTO op_signbit_T1_T0(void) |
| 1007 |
{
|
| 1008 |
T1 = (int32_t)T0 >> 31;
|
| 1009 |
} |
| 1010 |
|
| 1011 |
void OPPROTO op_movl_cp_T0(void) |
| 1012 |
{
|
| 1013 |
helper_set_cp(env, PARAM1, T0); |
| 1014 |
FORCE_RET(); |
| 1015 |
} |
| 1016 |
|
| 1017 |
void OPPROTO op_movl_T0_cp(void) |
| 1018 |
{
|
| 1019 |
T0 = helper_get_cp(env, PARAM1); |
| 1020 |
FORCE_RET(); |
| 1021 |
} |
| 1022 |
|
| 1023 |
void OPPROTO op_movl_cp15_T0(void) |
| 1024 |
{
|
| 1025 |
helper_set_cp15(env, PARAM1, T0); |
| 1026 |
FORCE_RET(); |
| 1027 |
} |
| 1028 |
|
| 1029 |
void OPPROTO op_movl_T0_cp15(void) |
| 1030 |
{
|
| 1031 |
T0 = helper_get_cp15(env, PARAM1); |
| 1032 |
FORCE_RET(); |
| 1033 |
} |
| 1034 |
|
| 1035 |
/* Access to user mode registers from privileged modes. */
|
| 1036 |
void OPPROTO op_movl_T0_user(void) |
| 1037 |
{
|
| 1038 |
int regno = PARAM1;
|
| 1039 |
if (regno == 13) { |
| 1040 |
T0 = env->banked_r13[0];
|
| 1041 |
} else if (regno == 14) { |
| 1042 |
T0 = env->banked_r14[0];
|
| 1043 |
} else if ((env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_FIQ) { |
| 1044 |
T0 = env->usr_regs[regno - 8];
|
| 1045 |
} else {
|
| 1046 |
T0 = env->regs[regno]; |
| 1047 |
} |
| 1048 |
FORCE_RET(); |
| 1049 |
} |
| 1050 |
|
| 1051 |
|
| 1052 |
void OPPROTO op_movl_user_T0(void) |
| 1053 |
{
|
| 1054 |
int regno = PARAM1;
|
| 1055 |
if (regno == 13) { |
| 1056 |
env->banked_r13[0] = T0;
|
| 1057 |
} else if (regno == 14) { |
| 1058 |
env->banked_r14[0] = T0;
|
| 1059 |
} else if ((env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_FIQ) { |
| 1060 |
env->usr_regs[regno - 8] = T0;
|
| 1061 |
} else {
|
| 1062 |
env->regs[regno] = T0; |
| 1063 |
} |
| 1064 |
FORCE_RET(); |
| 1065 |
} |
| 1066 |
|
| 1067 |
/* ARMv6 Media instructions. */
|
| 1068 |
|
| 1069 |
/* Note that signed overflow is undefined in C. The following routines are
|
| 1070 |
careful to use unsigned types where modulo arithmetic is required.
|
| 1071 |
Failure to do so _will_ break on newer gcc. */
|
| 1072 |
|
| 1073 |
/* Signed saturating arithmetic. */
|
| 1074 |
|
| 1075 |
/* Perform 16-bit signed satruating addition. */
|
| 1076 |
static inline uint16_t add16_sat(uint16_t a, uint16_t b) |
| 1077 |
{
|
| 1078 |
uint16_t res; |
| 1079 |
|
| 1080 |
res = a + b; |
| 1081 |
if (((res ^ a) & 0x8000) && !((a ^ b) & 0x8000)) { |
| 1082 |
if (a & 0x8000) |
| 1083 |
res = 0x8000;
|
| 1084 |
else
|
| 1085 |
res = 0x7fff;
|
| 1086 |
} |
| 1087 |
return res;
|
| 1088 |
} |
| 1089 |
|
| 1090 |
/* Perform 8-bit signed satruating addition. */
|
| 1091 |
static inline uint8_t add8_sat(uint8_t a, uint8_t b) |
| 1092 |
{
|
| 1093 |
uint8_t res; |
| 1094 |
|
| 1095 |
res = a + b; |
| 1096 |
if (((res ^ a) & 0x80) && !((a ^ b) & 0x80)) { |
| 1097 |
if (a & 0x80) |
| 1098 |
res = 0x80;
|
| 1099 |
else
|
| 1100 |
res = 0x7f;
|
| 1101 |
} |
| 1102 |
return res;
|
| 1103 |
} |
| 1104 |
|
| 1105 |
/* Perform 16-bit signed satruating subtraction. */
|
| 1106 |
static inline uint16_t sub16_sat(uint16_t a, uint16_t b) |
| 1107 |
{
|
| 1108 |
uint16_t res; |
| 1109 |
|
| 1110 |
res = a - b; |
| 1111 |
if (((res ^ a) & 0x8000) && ((a ^ b) & 0x8000)) { |
| 1112 |
if (a & 0x8000) |
| 1113 |
res = 0x8000;
|
| 1114 |
else
|
| 1115 |
res = 0x7fff;
|
| 1116 |
} |
| 1117 |
return res;
|
| 1118 |
} |
| 1119 |
|
| 1120 |
/* Perform 8-bit signed satruating subtraction. */
|
| 1121 |
static inline uint8_t sub8_sat(uint8_t a, uint8_t b) |
| 1122 |
{
|
| 1123 |
uint8_t res; |
| 1124 |
|
| 1125 |
res = a - b; |
| 1126 |
if (((res ^ a) & 0x80) && ((a ^ b) & 0x80)) { |
| 1127 |
if (a & 0x80) |
| 1128 |
res = 0x80;
|
| 1129 |
else
|
| 1130 |
res = 0x7f;
|
| 1131 |
} |
| 1132 |
return res;
|
| 1133 |
} |
| 1134 |
|
| 1135 |
#define ADD16(a, b, n) RESULT(add16_sat(a, b), n, 16); |
| 1136 |
#define SUB16(a, b, n) RESULT(sub16_sat(a, b), n, 16); |
| 1137 |
#define ADD8(a, b, n) RESULT(add8_sat(a, b), n, 8); |
| 1138 |
#define SUB8(a, b, n) RESULT(sub8_sat(a, b), n, 8); |
| 1139 |
#define PFX q
|
| 1140 |
|
| 1141 |
#include "op_addsub.h" |
| 1142 |
|
| 1143 |
/* Unsigned saturating arithmetic. */
|
| 1144 |
static inline uint16_t add16_usat(uint16_t a, uint8_t b) |
| 1145 |
{
|
| 1146 |
uint16_t res; |
| 1147 |
res = a + b; |
| 1148 |
if (res < a)
|
| 1149 |
res = 0xffff;
|
| 1150 |
return res;
|
| 1151 |
} |
| 1152 |
|
| 1153 |
static inline uint16_t sub16_usat(uint16_t a, uint8_t b) |
| 1154 |
{
|
| 1155 |
if (a < b)
|
| 1156 |
return a - b;
|
| 1157 |
else
|
| 1158 |
return 0; |
| 1159 |
} |
| 1160 |
|
| 1161 |
static inline uint8_t add8_usat(uint8_t a, uint8_t b) |
| 1162 |
{
|
| 1163 |
uint8_t res; |
| 1164 |
res = a + b; |
| 1165 |
if (res < a)
|
| 1166 |
res = 0xff;
|
| 1167 |
return res;
|
| 1168 |
} |
| 1169 |
|
| 1170 |
static inline uint8_t sub8_usat(uint8_t a, uint8_t b) |
| 1171 |
{
|
| 1172 |
if (a < b)
|
| 1173 |
return a - b;
|
| 1174 |
else
|
| 1175 |
return 0; |
| 1176 |
} |
| 1177 |
|
| 1178 |
#define ADD16(a, b, n) RESULT(add16_usat(a, b), n, 16); |
| 1179 |
#define SUB16(a, b, n) RESULT(sub16_usat(a, b), n, 16); |
| 1180 |
#define ADD8(a, b, n) RESULT(add8_usat(a, b), n, 8); |
| 1181 |
#define SUB8(a, b, n) RESULT(sub8_usat(a, b), n, 8); |
| 1182 |
#define PFX uq
|
| 1183 |
|
| 1184 |
#include "op_addsub.h" |
| 1185 |
|
| 1186 |
/* Signed modulo arithmetic. */
|
| 1187 |
#define SARITH16(a, b, n, op) do { \ |
| 1188 |
int32_t sum; \ |
| 1189 |
sum = (int16_t)((uint16_t)(a) op (uint16_t)(b)); \ |
| 1190 |
RESULT(sum, n, 16); \
|
| 1191 |
if (sum >= 0) \ |
| 1192 |
ge |= 3 << (n * 2); \ |
| 1193 |
} while(0) |
| 1194 |
|
| 1195 |
#define SARITH8(a, b, n, op) do { \ |
| 1196 |
int32_t sum; \ |
| 1197 |
sum = (int8_t)((uint8_t)(a) op (uint8_t)(b)); \ |
| 1198 |
RESULT(sum, n, 8); \
|
| 1199 |
if (sum >= 0) \ |
| 1200 |
ge |= 1 << n; \
|
| 1201 |
} while(0) |
| 1202 |
|
| 1203 |
|
| 1204 |
#define ADD16(a, b, n) SARITH16(a, b, n, +)
|
| 1205 |
#define SUB16(a, b, n) SARITH16(a, b, n, -)
|
| 1206 |
#define ADD8(a, b, n) SARITH8(a, b, n, +)
|
| 1207 |
#define SUB8(a, b, n) SARITH8(a, b, n, -)
|
| 1208 |
#define PFX s
|
| 1209 |
#define ARITH_GE
|
| 1210 |
|
| 1211 |
#include "op_addsub.h" |
| 1212 |
|
| 1213 |
/* Unsigned modulo arithmetic. */
|
| 1214 |
#define ADD16(a, b, n) do { \ |
| 1215 |
uint32_t sum; \ |
| 1216 |
sum = (uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b); \ |
| 1217 |
RESULT(sum, n, 16); \
|
| 1218 |
if ((sum >> 16) == 0) \ |
| 1219 |
ge |= 3 << (n * 2); \ |
| 1220 |
} while(0) |
| 1221 |
|
| 1222 |
#define ADD8(a, b, n) do { \ |
| 1223 |
uint32_t sum; \ |
| 1224 |
sum = (uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b); \ |
| 1225 |
RESULT(sum, n, 8); \
|
| 1226 |
if ((sum >> 8) == 0) \ |
| 1227 |
ge |= 3 << (n * 2); \ |
| 1228 |
} while(0) |
| 1229 |
|
| 1230 |
#define SUB16(a, b, n) do { \ |
| 1231 |
uint32_t sum; \ |
| 1232 |
sum = (uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b); \ |
| 1233 |
RESULT(sum, n, 16); \
|
| 1234 |
if ((sum >> 16) == 0) \ |
| 1235 |
ge |= 3 << (n * 2); \ |
| 1236 |
} while(0) |
| 1237 |
|
| 1238 |
#define SUB8(a, b, n) do { \ |
| 1239 |
uint32_t sum; \ |
| 1240 |
sum = (uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b); \ |
| 1241 |
RESULT(sum, n, 8); \
|
| 1242 |
if ((sum >> 8) == 0) \ |
| 1243 |
ge |= 3 << (n * 2); \ |
| 1244 |
} while(0) |
| 1245 |
|
| 1246 |
#define PFX u
|
| 1247 |
#define ARITH_GE
|
| 1248 |
|
| 1249 |
#include "op_addsub.h" |
| 1250 |
|
| 1251 |
/* Halved signed arithmetic. */
|
| 1252 |
#define ADD16(a, b, n) \
|
| 1253 |
RESULT(((int32_t)(int16_t)(a) + (int32_t)(int16_t)(b)) >> 1, n, 16) |
| 1254 |
#define SUB16(a, b, n) \
|
| 1255 |
RESULT(((int32_t)(int16_t)(a) - (int32_t)(int16_t)(b)) >> 1, n, 16) |
| 1256 |
#define ADD8(a, b, n) \
|
| 1257 |
RESULT(((int32_t)(int8_t)(a) + (int32_t)(int8_t)(b)) >> 1, n, 8) |
| 1258 |
#define SUB8(a, b, n) \
|
| 1259 |
RESULT(((int32_t)(int8_t)(a) - (int32_t)(int8_t)(b)) >> 1, n, 8) |
| 1260 |
#define PFX sh
|
| 1261 |
|
| 1262 |
#include "op_addsub.h" |
| 1263 |
|
| 1264 |
/* Halved unsigned arithmetic. */
|
| 1265 |
#define ADD16(a, b, n) \
|
| 1266 |
RESULT(((uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b)) >> 1, n, 16) |
| 1267 |
#define SUB16(a, b, n) \
|
| 1268 |
RESULT(((uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b)) >> 1, n, 16) |
| 1269 |
#define ADD8(a, b, n) \
|
| 1270 |
RESULT(((uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b)) >> 1, n, 8) |
| 1271 |
#define SUB8(a, b, n) \
|
| 1272 |
RESULT(((uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b)) >> 1, n, 8) |
| 1273 |
#define PFX uh
|
| 1274 |
|
| 1275 |
#include "op_addsub.h" |
| 1276 |
|
| 1277 |
void OPPROTO op_pkhtb_T0_T1(void) |
| 1278 |
{
|
| 1279 |
T0 = (T0 & 0xffff0000) | (T1 & 0xffff); |
| 1280 |
} |
| 1281 |
|
| 1282 |
void OPPROTO op_pkhbt_T0_T1(void) |
| 1283 |
{
|
| 1284 |
T0 = (T0 & 0xffff) | (T1 & 0xffff0000); |
| 1285 |
} |
| 1286 |
void OPPROTO op_rev_T0(void) |
| 1287 |
{
|
| 1288 |
T0 = ((T0 & 0xff000000) >> 24) |
| 1289 |
| ((T0 & 0x00ff0000) >> 8) |
| 1290 |
| ((T0 & 0x0000ff00) << 8) |
| 1291 |
| ((T0 & 0x000000ff) << 24); |
| 1292 |
} |
| 1293 |
|
| 1294 |
void OPPROTO op_revh_T0(void) |
| 1295 |
{
|
| 1296 |
T0 = (T0 >> 16) | (T0 << 16); |
| 1297 |
} |
| 1298 |
|
| 1299 |
void OPPROTO op_rev16_T0(void) |
| 1300 |
{
|
| 1301 |
T0 = ((T0 & 0xff000000) >> 8) |
| 1302 |
| ((T0 & 0x00ff0000) << 8) |
| 1303 |
| ((T0 & 0x0000ff00) >> 8) |
| 1304 |
| ((T0 & 0x000000ff) << 8); |
| 1305 |
} |
| 1306 |
|
| 1307 |
void OPPROTO op_revsh_T0(void) |
| 1308 |
{
|
| 1309 |
T0 = (int16_t)( ((T0 & 0x0000ff00) >> 8) |
| 1310 |
| ((T0 & 0x000000ff) << 8)); |
| 1311 |
} |
| 1312 |
|
| 1313 |
void OPPROTO op_rbit_T0(void) |
| 1314 |
{
|
| 1315 |
T0 = ((T0 & 0xff000000) >> 24) |
| 1316 |
| ((T0 & 0x00ff0000) >> 8) |
| 1317 |
| ((T0 & 0x0000ff00) << 8) |
| 1318 |
| ((T0 & 0x000000ff) << 24); |
| 1319 |
T0 = ((T0 & 0xf0f0f0f0) >> 4) |
| 1320 |
| ((T0 & 0x0f0f0f0f) << 4); |
| 1321 |
T0 = ((T0 & 0x88888888) >> 3) |
| 1322 |
| ((T0 & 0x44444444) >> 1) |
| 1323 |
| ((T0 & 0x22222222) << 1) |
| 1324 |
| ((T0 & 0x11111111) << 3); |
| 1325 |
} |
| 1326 |
|
| 1327 |
/* Swap low and high halfwords. */
|
| 1328 |
void OPPROTO op_swap_half_T1(void) |
| 1329 |
{
|
| 1330 |
T1 = (T1 >> 16) | (T1 << 16); |
| 1331 |
FORCE_RET(); |
| 1332 |
} |
| 1333 |
|
| 1334 |
/* Dual 16-bit signed multiply. */
|
| 1335 |
void OPPROTO op_mul_dual_T0_T1(void) |
| 1336 |
{
|
| 1337 |
int32_t low; |
| 1338 |
int32_t high; |
| 1339 |
low = (int32_t)(int16_t)T0 * (int32_t)(int16_t)T1; |
| 1340 |
high = (((int32_t)T0) >> 16) * (((int32_t)T1) >> 16); |
| 1341 |
T0 = low; |
| 1342 |
T1 = high; |
| 1343 |
} |
| 1344 |
|
| 1345 |
void OPPROTO op_sel_T0_T1(void) |
| 1346 |
{
|
| 1347 |
uint32_t mask; |
| 1348 |
uint32_t flags; |
| 1349 |
|
| 1350 |
flags = env->GE; |
| 1351 |
mask = 0;
|
| 1352 |
if (flags & 1) |
| 1353 |
mask |= 0xff;
|
| 1354 |
if (flags & 2) |
| 1355 |
mask |= 0xff00;
|
| 1356 |
if (flags & 4) |
| 1357 |
mask |= 0xff0000;
|
| 1358 |
if (flags & 8) |
| 1359 |
mask |= 0xff000000;
|
| 1360 |
T0 = (T0 & mask) | (T1 & ~mask); |
| 1361 |
FORCE_RET(); |
| 1362 |
} |
| 1363 |
|
| 1364 |
void OPPROTO op_roundqd_T0_T1(void) |
| 1365 |
{
|
| 1366 |
T0 = T1 + ((uint32_t)T0 >> 31);
|
| 1367 |
} |
| 1368 |
|
| 1369 |
/* Signed saturation. */
|
| 1370 |
static inline uint32_t do_ssat(int32_t val, int shift) |
| 1371 |
{
|
| 1372 |
int32_t top; |
| 1373 |
uint32_t mask; |
| 1374 |
|
| 1375 |
shift = PARAM1; |
| 1376 |
top = val >> shift; |
| 1377 |
mask = (1u << shift) - 1; |
| 1378 |
if (top > 0) { |
| 1379 |
env->QF = 1;
|
| 1380 |
return mask;
|
| 1381 |
} else if (top < -1) { |
| 1382 |
env->QF = 1;
|
| 1383 |
return ~mask;
|
| 1384 |
} |
| 1385 |
return val;
|
| 1386 |
} |
| 1387 |
|
| 1388 |
/* Unsigned saturation. */
|
| 1389 |
static inline uint32_t do_usat(int32_t val, int shift) |
| 1390 |
{
|
| 1391 |
uint32_t max; |
| 1392 |
|
| 1393 |
shift = PARAM1; |
| 1394 |
max = (1u << shift) - 1; |
| 1395 |
if (val < 0) { |
| 1396 |
env->QF = 1;
|
| 1397 |
return 0; |
| 1398 |
} else if (val > max) { |
| 1399 |
env->QF = 1;
|
| 1400 |
return max;
|
| 1401 |
} |
| 1402 |
return val;
|
| 1403 |
} |
| 1404 |
|
| 1405 |
/* Signed saturate. */
|
| 1406 |
void OPPROTO op_ssat_T1(void) |
| 1407 |
{
|
| 1408 |
T0 = do_ssat(T0, PARAM1); |
| 1409 |
FORCE_RET(); |
| 1410 |
} |
| 1411 |
|
| 1412 |
/* Dual halfword signed saturate. */
|
| 1413 |
void OPPROTO op_ssat16_T1(void) |
| 1414 |
{
|
| 1415 |
uint32_t res; |
| 1416 |
|
| 1417 |
res = (uint16_t)do_ssat((int16_t)T0, PARAM1); |
| 1418 |
res |= do_ssat(((int32_t)T0) >> 16, PARAM1) << 16; |
| 1419 |
T0 = res; |
| 1420 |
FORCE_RET(); |
| 1421 |
} |
| 1422 |
|
| 1423 |
/* Unsigned saturate. */
|
| 1424 |
void OPPROTO op_usat_T1(void) |
| 1425 |
{
|
| 1426 |
T0 = do_usat(T0, PARAM1); |
| 1427 |
FORCE_RET(); |
| 1428 |
} |
| 1429 |
|
| 1430 |
/* Dual halfword unsigned saturate. */
|
| 1431 |
void OPPROTO op_usat16_T1(void) |
| 1432 |
{
|
| 1433 |
uint32_t res; |
| 1434 |
|
| 1435 |
res = (uint16_t)do_usat((int16_t)T0, PARAM1); |
| 1436 |
res |= do_usat(((int32_t)T0) >> 16, PARAM1) << 16; |
| 1437 |
T0 = res; |
| 1438 |
FORCE_RET(); |
| 1439 |
} |
| 1440 |
|
| 1441 |
/* Dual 16-bit add. */
|
| 1442 |
static inline uint8_t do_usad(uint8_t a, uint8_t b) |
| 1443 |
{
|
| 1444 |
if (a > b)
|
| 1445 |
return a - b;
|
| 1446 |
else
|
| 1447 |
return b - a;
|
| 1448 |
} |
| 1449 |
|
| 1450 |
/* Unsigned sum of absolute byte differences. */
|
| 1451 |
void OPPROTO op_usad8_T0_T1(void) |
| 1452 |
{
|
| 1453 |
uint32_t sum; |
| 1454 |
sum = do_usad(T0, T1); |
| 1455 |
sum += do_usad(T0 >> 8, T1 >> 8); |
| 1456 |
sum += do_usad(T0 >> 16, T1 >>16); |
| 1457 |
sum += do_usad(T0 >> 24, T1 >> 24); |
| 1458 |
T0 = sum; |
| 1459 |
} |
| 1460 |
|
| 1461 |
/* Thumb-2 instructions. */
|
| 1462 |
|
| 1463 |
/* Insert T1 into T0. Result goes in T1. */
|
| 1464 |
void OPPROTO op_bfi_T1_T0(void) |
| 1465 |
{
|
| 1466 |
int shift = PARAM1;
|
| 1467 |
uint32_t mask = PARAM2; |
| 1468 |
uint32_t bits; |
| 1469 |
|
| 1470 |
bits = (T1 << shift) & mask; |
| 1471 |
T1 = (T0 & ~mask) | bits; |
| 1472 |
} |
| 1473 |
|
| 1474 |
/* Unsigned bitfield extract. */
|
| 1475 |
void OPPROTO op_ubfx_T1(void) |
| 1476 |
{
|
| 1477 |
uint32_t shift = PARAM1; |
| 1478 |
uint32_t mask = PARAM2; |
| 1479 |
|
| 1480 |
T1 >>= shift; |
| 1481 |
T1 &= mask; |
| 1482 |
} |
| 1483 |
|
| 1484 |
/* Signed bitfield extract. */
|
| 1485 |
void OPPROTO op_sbfx_T1(void) |
| 1486 |
{
|
| 1487 |
uint32_t shift = PARAM1; |
| 1488 |
uint32_t width = PARAM2; |
| 1489 |
int32_t val; |
| 1490 |
|
| 1491 |
val = T1 << (32 - (shift + width));
|
| 1492 |
T1 = val >> (32 - width);
|
| 1493 |
} |
| 1494 |
|
| 1495 |
void OPPROTO op_movtop_T0_im(void) |
| 1496 |
{
|
| 1497 |
T0 = (T0 & 0xffff) | PARAM1;
|
| 1498 |
} |
| 1499 |
|
| 1500 |
/* Used by table branch instructions. */
|
| 1501 |
void OPPROTO op_jmp_T0_im(void) |
| 1502 |
{
|
| 1503 |
env->regs[15] = PARAM1 + (T0 << 1); |
| 1504 |
} |
| 1505 |
|
| 1506 |
void OPPROTO op_set_condexec(void) |
| 1507 |
{
|
| 1508 |
env->condexec_bits = PARAM1; |
| 1509 |
} |
| 1510 |
|
| 1511 |
void OPPROTO op_sdivl_T0_T1(void) |
| 1512 |
{
|
| 1513 |
int32_t num; |
| 1514 |
int32_t den; |
| 1515 |
num = T0; |
| 1516 |
den = T1; |
| 1517 |
if (den == 0) |
| 1518 |
T0 = 0;
|
| 1519 |
else
|
| 1520 |
T0 = num / den; |
| 1521 |
FORCE_RET(); |
| 1522 |
} |
| 1523 |
|
| 1524 |
void OPPROTO op_udivl_T0_T1(void) |
| 1525 |
{
|
| 1526 |
uint32_t num; |
| 1527 |
uint32_t den; |
| 1528 |
num = T0; |
| 1529 |
den = T1; |
| 1530 |
if (den == 0) |
| 1531 |
T0 = 0;
|
| 1532 |
else
|
| 1533 |
T0 = num / den; |
| 1534 |
FORCE_RET(); |
| 1535 |
} |
| 1536 |
|
| 1537 |
void OPPROTO op_movl_T1_r13_banked(void) |
| 1538 |
{
|
| 1539 |
T1 = helper_get_r13_banked(env, PARAM1); |
| 1540 |
} |
| 1541 |
|
| 1542 |
void OPPROTO op_movl_r13_T1_banked(void) |
| 1543 |
{
|
| 1544 |
helper_set_r13_banked(env, PARAM1, T1); |
| 1545 |
} |
| 1546 |
|
| 1547 |
void OPPROTO op_v7m_mrs_T0(void) |
| 1548 |
{
|
| 1549 |
T0 = helper_v7m_mrs(env, PARAM1); |
| 1550 |
} |
| 1551 |
|
| 1552 |
void OPPROTO op_v7m_msr_T0(void) |
| 1553 |
{
|
| 1554 |
helper_v7m_msr(env, PARAM1, T0); |
| 1555 |
} |
| 1556 |
|
| 1557 |
void OPPROTO op_movl_T0_sp(void) |
| 1558 |
{
|
| 1559 |
if (PARAM1 == env->v7m.current_sp)
|
| 1560 |
T0 = env->regs[13];
|
| 1561 |
else
|
| 1562 |
T0 = env->v7m.other_sp; |
| 1563 |
FORCE_RET(); |
| 1564 |
} |
| 1565 |
|
| 1566 |
#include "op_neon.h" |
| 1567 |
|
| 1568 |
/* iwMMXt support */
|
| 1569 |
#include "op_iwmmxt.c" |