1322 lines
		
	
	
		
			43 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			1322 lines
		
	
	
		
			43 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
 | |
|  *  MIPS emulation helpers for qemu.
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|  *
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|  *  Copyright (c) 2004-2005 Jocelyn Mayer
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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
 | |
|  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 | |
|  */
 | |
| #include <stdlib.h>
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| #include "exec.h"
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| 
 | |
| #define GETPC() (__builtin_return_address(0))
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| 
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| /*****************************************************************************/
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| /* Exceptions processing helpers */
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| 
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| void do_raise_exception_err (uint32_t exception, int error_code)
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| {
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| #if 1
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|     if (logfile && exception < 0x100)
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|         fprintf(logfile, "%s: %d %d\n", __func__, exception, error_code);
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| #endif
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|     env->exception_index = exception;
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|     env->error_code = error_code;
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|     T0 = 0;
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|     cpu_loop_exit();
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| }
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| 
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| void do_raise_exception (uint32_t exception)
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| {
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|     do_raise_exception_err(exception, 0);
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| }
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| 
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| void do_restore_state (void *pc_ptr)
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| {
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|   TranslationBlock *tb;
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|   unsigned long pc = (unsigned long) pc_ptr;
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| 
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|   tb = tb_find_pc (pc);
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|   cpu_restore_state (tb, env, pc, NULL);
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| }
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| 
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| void do_raise_exception_direct_err (uint32_t exception, int error_code)
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| {
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|     do_restore_state (GETPC ());
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|     do_raise_exception_err (exception, error_code);
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| }
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| 
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| void do_raise_exception_direct (uint32_t exception)
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| {
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|     do_raise_exception_direct_err (exception, 0);
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| }
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| 
 | |
| #define MEMSUFFIX _raw
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| #include "op_helper_mem.c"
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| #undef MEMSUFFIX
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| #if !defined(CONFIG_USER_ONLY)
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| #define MEMSUFFIX _user
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| #include "op_helper_mem.c"
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| #undef MEMSUFFIX
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| #define MEMSUFFIX _kernel
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| #include "op_helper_mem.c"
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| #undef MEMSUFFIX
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| #endif
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| 
 | |
| #if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
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| #if TARGET_LONG_BITS > HOST_LONG_BITS
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| /* Those might call libgcc functions.  */
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| void do_dsll (void)
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| {
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|     T0 = T0 << T1;
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| }
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| 
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| void do_dsll32 (void)
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| {
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|     T0 = T0 << (T1 + 32);
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| }
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| 
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| void do_dsra (void)
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| {
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|     T0 = (int64_t)T0 >> T1;
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| }
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| 
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| void do_dsra32 (void)
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| {
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|     T0 = (int64_t)T0 >> (T1 + 32);
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| }
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| 
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| void do_dsrl (void)
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| {
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|     T0 = T0 >> T1;
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| }
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| 
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| void do_dsrl32 (void)
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| {
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|     T0 = T0 >> (T1 + 32);
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| }
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| 
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| void do_drotr (void)
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| {
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|     target_ulong tmp;
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| 
 | |
|     if (T1) {
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|        tmp = T0 << (0x40 - T1);
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|        T0 = (T0 >> T1) | tmp;
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|     }
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| }
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| 
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| void do_drotr32 (void)
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| {
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|     target_ulong tmp;
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| 
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|     if (T1) {
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|        tmp = T0 << (0x40 - (32 + T1));
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|        T0 = (T0 >> (32 + T1)) | tmp;
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|     }
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| }
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| 
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| void do_dsllv (void)
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| {
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|     T0 = T1 << (T0 & 0x3F);
 | |
| }
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| 
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| void do_dsrav (void)
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| {
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|     T0 = (int64_t)T1 >> (T0 & 0x3F);
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| }
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| 
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| void do_dsrlv (void)
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| {
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|     T0 = T1 >> (T0 & 0x3F);
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| }
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| 
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| void do_drotrv (void)
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| {
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|     target_ulong tmp;
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| 
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|     T0 &= 0x3F;
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|     if (T0) {
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|        tmp = T1 << (0x40 - T0);
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|        T0 = (T1 >> T0) | tmp;
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|     } else
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|        T0 = T1;
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| }
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| #endif /* TARGET_LONG_BITS > HOST_LONG_BITS */
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| #endif /* TARGET_MIPSN32 || TARGET_MIPS64 */
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| 
 | |
| /* 64 bits arithmetic for 32 bits hosts */
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| #if TARGET_LONG_BITS > HOST_LONG_BITS
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| static inline uint64_t get_HILO (void)
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| {
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|     return (env->HI[0][env->current_tc] << 32) | (uint32_t)env->LO[0][env->current_tc];
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| }
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| 
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| static inline void set_HILO (uint64_t HILO)
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| {
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|     env->LO[0][env->current_tc] = (int32_t)HILO;
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|     env->HI[0][env->current_tc] = (int32_t)(HILO >> 32);
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| }
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| 
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| void do_mult (void)
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| {
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|     set_HILO((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1);
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| }
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| 
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| void do_multu (void)
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| {
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|     set_HILO((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
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| }
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| 
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| void do_madd (void)
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| {
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|     int64_t tmp;
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| 
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|     tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1);
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|     set_HILO((int64_t)get_HILO() + tmp);
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| }
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| 
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| void do_maddu (void)
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| {
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|     uint64_t tmp;
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| 
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|     tmp = ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
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|     set_HILO(get_HILO() + tmp);
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| }
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| 
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| void do_msub (void)
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| {
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|     int64_t tmp;
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| 
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|     tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1);
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|     set_HILO((int64_t)get_HILO() - tmp);
 | |
| }
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| 
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| void do_msubu (void)
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| {
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|     uint64_t tmp;
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| 
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|     tmp = ((uint64_t)(uint32_t)T0 * (uint64_t)(uint32_t)T1);
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|     set_HILO(get_HILO() - tmp);
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| }
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| #endif
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| 
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| #if HOST_LONG_BITS < 64
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| void do_div (void)
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| {
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|     /* 64bit datatypes because we may see overflow/underflow. */
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|     if (T1 != 0) {
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|         env->LO[0][env->current_tc] = (int32_t)((int64_t)(int32_t)T0 / (int32_t)T1);
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|         env->HI[0][env->current_tc] = (int32_t)((int64_t)(int32_t)T0 % (int32_t)T1);
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|     }
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| }
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| #endif
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| 
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| #if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
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| void do_ddiv (void)
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| {
 | |
|     if (T1 != 0) {
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|         lldiv_t res = lldiv((int64_t)T0, (int64_t)T1);
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|         env->LO[0][env->current_tc] = res.quot;
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|         env->HI[0][env->current_tc] = res.rem;
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|     }
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| }
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| 
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| #if TARGET_LONG_BITS > HOST_LONG_BITS
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| void do_ddivu (void)
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| {
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|     if (T1 != 0) {
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|         env->LO[0][env->current_tc] = T0 / T1;
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|         env->HI[0][env->current_tc] = T0 % T1;
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|     }
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| }
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| #endif
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| #endif /* TARGET_MIPSN32 || TARGET_MIPS64 */
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| 
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| #if defined(CONFIG_USER_ONLY)
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| void do_mfc0_random (void)
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| {
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|     cpu_abort(env, "mfc0 random\n");
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| }
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| 
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| void do_mfc0_count (void)
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| {
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|     cpu_abort(env, "mfc0 count\n");
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| }
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| 
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| void cpu_mips_store_count(CPUState *env, uint32_t value)
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| {
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|     cpu_abort(env, "mtc0 count\n");
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| }
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| 
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| void cpu_mips_store_compare(CPUState *env, uint32_t value)
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| {
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|     cpu_abort(env, "mtc0 compare\n");
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| }
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| 
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| void cpu_mips_start_count(CPUState *env)
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| {
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|     cpu_abort(env, "start count\n");
 | |
| }
 | |
| 
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| void cpu_mips_stop_count(CPUState *env)
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| {
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|     cpu_abort(env, "stop count\n");
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| }
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| 
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| void cpu_mips_update_irq(CPUState *env)
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| {
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|     cpu_abort(env, "mtc0 status / mtc0 cause\n");
 | |
| }
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| 
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| void do_mtc0_status_debug(uint32_t old, uint32_t val)
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| {
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|     cpu_abort(env, "mtc0 status debug\n");
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| }
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| 
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| void do_mtc0_status_irqraise_debug (void)
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| {
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|     cpu_abort(env, "mtc0 status irqraise debug\n");
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| }
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| 
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| void cpu_mips_tlb_flush (CPUState *env, int flush_global)
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| {
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|     cpu_abort(env, "mips_tlb_flush\n");
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| }
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| 
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| #else
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| 
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| /* CP0 helpers */
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| void do_mfc0_random (void)
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| {
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|     T0 = (int32_t)cpu_mips_get_random(env);
 | |
| }
 | |
| 
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| void do_mfc0_count (void)
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| {
 | |
|     T0 = (int32_t)cpu_mips_get_count(env);
 | |
| }
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| 
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| void do_mtc0_status_debug(uint32_t old, uint32_t val)
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| {
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|     fprintf(logfile, "Status %08x (%08x) => %08x (%08x) Cause %08x",
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|             old, old & env->CP0_Cause & CP0Ca_IP_mask,
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|             val, val & env->CP0_Cause & CP0Ca_IP_mask,
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|             env->CP0_Cause);
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|     (env->hflags & MIPS_HFLAG_UM) ? fputs(", UM\n", logfile)
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|                                   : fputs("\n", logfile);
 | |
| }
 | |
| 
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| void do_mtc0_status_irqraise_debug(void)
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| {
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|     fprintf(logfile, "Raise pending IRQs\n");
 | |
| }
 | |
| 
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| void fpu_handle_exception(void)
 | |
| {
 | |
| #ifdef CONFIG_SOFTFLOAT
 | |
|     int flags = get_float_exception_flags(&env->fpu->fp_status);
 | |
|     unsigned int cpuflags = 0, enable, cause = 0;
 | |
| 
 | |
|     enable = GET_FP_ENABLE(env->fpu->fcr31);
 | |
| 
 | |
|     /* determine current flags */
 | |
|     if (flags & float_flag_invalid) {
 | |
|         cpuflags |= FP_INVALID;
 | |
|         cause |= FP_INVALID & enable;
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|     }
 | |
|     if (flags & float_flag_divbyzero) {
 | |
|         cpuflags |= FP_DIV0;
 | |
|         cause |= FP_DIV0 & enable;
 | |
|     }
 | |
|     if (flags & float_flag_overflow) {
 | |
|         cpuflags |= FP_OVERFLOW;
 | |
|         cause |= FP_OVERFLOW & enable;
 | |
|     }
 | |
|     if (flags & float_flag_underflow) {
 | |
|         cpuflags |= FP_UNDERFLOW;
 | |
|         cause |= FP_UNDERFLOW & enable;
 | |
|     }
 | |
|     if (flags & float_flag_inexact) {
 | |
|         cpuflags |= FP_INEXACT;
 | |
|         cause |= FP_INEXACT & enable;
 | |
|     }
 | |
|     SET_FP_FLAGS(env->fpu->fcr31, cpuflags);
 | |
|     SET_FP_CAUSE(env->fpu->fcr31, cause);
 | |
| #else
 | |
|     SET_FP_FLAGS(env->fpu->fcr31, 0);
 | |
|     SET_FP_CAUSE(env->fpu->fcr31, 0);
 | |
| #endif
 | |
| }
 | |
| 
 | |
| /* TLB management */
 | |
| void cpu_mips_tlb_flush (CPUState *env, int flush_global)
 | |
| {
 | |
|     /* Flush qemu's TLB and discard all shadowed entries.  */
 | |
|     tlb_flush (env, flush_global);
 | |
|     env->tlb->tlb_in_use = env->tlb->nb_tlb;
 | |
| }
 | |
| 
 | |
| static void r4k_mips_tlb_flush_extra (CPUState *env, int first)
 | |
| {
 | |
|     /* Discard entries from env->tlb[first] onwards.  */
 | |
|     while (env->tlb->tlb_in_use > first) {
 | |
|         r4k_invalidate_tlb(env, --env->tlb->tlb_in_use, 0);
 | |
|     }
 | |
| }
 | |
| 
 | |
| static void r4k_fill_tlb (int idx)
 | |
| {
 | |
|     r4k_tlb_t *tlb;
 | |
| 
 | |
|     /* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
 | |
|     tlb = &env->tlb->mmu.r4k.tlb[idx];
 | |
|     tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
 | |
| #if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
 | |
|     tlb->VPN &= env->SEGMask;
 | |
| #endif
 | |
|     tlb->ASID = env->CP0_EntryHi & 0xFF;
 | |
|     tlb->PageMask = env->CP0_PageMask;
 | |
|     tlb->G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
 | |
|     tlb->V0 = (env->CP0_EntryLo0 & 2) != 0;
 | |
|     tlb->D0 = (env->CP0_EntryLo0 & 4) != 0;
 | |
|     tlb->C0 = (env->CP0_EntryLo0 >> 3) & 0x7;
 | |
|     tlb->PFN[0] = (env->CP0_EntryLo0 >> 6) << 12;
 | |
|     tlb->V1 = (env->CP0_EntryLo1 & 2) != 0;
 | |
|     tlb->D1 = (env->CP0_EntryLo1 & 4) != 0;
 | |
|     tlb->C1 = (env->CP0_EntryLo1 >> 3) & 0x7;
 | |
|     tlb->PFN[1] = (env->CP0_EntryLo1 >> 6) << 12;
 | |
| }
 | |
| 
 | |
| void r4k_do_tlbwi (void)
 | |
| {
 | |
|     /* Discard cached TLB entries.  We could avoid doing this if the
 | |
|        tlbwi is just upgrading access permissions on the current entry;
 | |
|        that might be a further win.  */
 | |
|     r4k_mips_tlb_flush_extra (env, env->tlb->nb_tlb);
 | |
| 
 | |
|     r4k_invalidate_tlb(env, env->CP0_Index % env->tlb->nb_tlb, 0);
 | |
|     r4k_fill_tlb(env->CP0_Index % env->tlb->nb_tlb);
 | |
| }
 | |
| 
 | |
| void r4k_do_tlbwr (void)
 | |
| {
 | |
|     int r = cpu_mips_get_random(env);
 | |
| 
 | |
|     r4k_invalidate_tlb(env, r, 1);
 | |
|     r4k_fill_tlb(r);
 | |
| }
 | |
| 
 | |
| void r4k_do_tlbp (void)
 | |
| {
 | |
|     r4k_tlb_t *tlb;
 | |
|     target_ulong mask;
 | |
|     target_ulong tag;
 | |
|     target_ulong VPN;
 | |
|     uint8_t ASID;
 | |
|     int i;
 | |
| 
 | |
|     ASID = env->CP0_EntryHi & 0xFF;
 | |
|     for (i = 0; i < env->tlb->nb_tlb; i++) {
 | |
|         tlb = &env->tlb->mmu.r4k.tlb[i];
 | |
|         /* 1k pages are not supported. */
 | |
|         mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
 | |
|         tag = env->CP0_EntryHi & ~mask;
 | |
|         VPN = tlb->VPN & ~mask;
 | |
|         /* Check ASID, virtual page number & size */
 | |
|         if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
 | |
|             /* TLB match */
 | |
|             env->CP0_Index = i;
 | |
|             break;
 | |
|         }
 | |
|     }
 | |
|     if (i == env->tlb->nb_tlb) {
 | |
|         /* No match.  Discard any shadow entries, if any of them match.  */
 | |
|         for (i = env->tlb->nb_tlb; i < env->tlb->tlb_in_use; i++) {
 | |
| 	    tlb = &env->tlb->mmu.r4k.tlb[i];
 | |
| 	    /* 1k pages are not supported. */
 | |
| 	    mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
 | |
| 	    tag = env->CP0_EntryHi & ~mask;
 | |
| 	    VPN = tlb->VPN & ~mask;
 | |
| 	    /* Check ASID, virtual page number & size */
 | |
| 	    if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag) {
 | |
|                 r4k_mips_tlb_flush_extra (env, i);
 | |
| 	        break;
 | |
| 	    }
 | |
| 	}
 | |
| 
 | |
|         env->CP0_Index |= 0x80000000;
 | |
|     }
 | |
| }
 | |
| 
 | |
| void r4k_do_tlbr (void)
 | |
| {
 | |
|     r4k_tlb_t *tlb;
 | |
|     uint8_t ASID;
 | |
| 
 | |
|     ASID = env->CP0_EntryHi & 0xFF;
 | |
|     tlb = &env->tlb->mmu.r4k.tlb[env->CP0_Index % env->tlb->nb_tlb];
 | |
| 
 | |
|     /* If this will change the current ASID, flush qemu's TLB.  */
 | |
|     if (ASID != tlb->ASID)
 | |
|         cpu_mips_tlb_flush (env, 1);
 | |
| 
 | |
|     r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
 | |
| 
 | |
|     env->CP0_EntryHi = tlb->VPN | tlb->ASID;
 | |
|     env->CP0_PageMask = tlb->PageMask;
 | |
|     env->CP0_EntryLo0 = tlb->G | (tlb->V0 << 1) | (tlb->D0 << 2) |
 | |
|                         (tlb->C0 << 3) | (tlb->PFN[0] >> 6);
 | |
|     env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) |
 | |
|                         (tlb->C1 << 3) | (tlb->PFN[1] >> 6);
 | |
| }
 | |
| 
 | |
| #endif /* !CONFIG_USER_ONLY */
 | |
| 
 | |
| void dump_ldst (const unsigned char *func)
 | |
| {
 | |
|     if (loglevel)
 | |
|         fprintf(logfile, "%s => " TARGET_FMT_lx " " TARGET_FMT_lx "\n", __func__, T0, T1);
 | |
| }
 | |
| 
 | |
| void dump_sc (void)
 | |
| {
 | |
|     if (loglevel) {
 | |
|         fprintf(logfile, "%s " TARGET_FMT_lx " at " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n", __func__,
 | |
|                 T1, T0, env->CP0_LLAddr);
 | |
|     }
 | |
| }
 | |
| 
 | |
| void debug_pre_eret (void)
 | |
| {
 | |
|     fprintf(logfile, "ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
 | |
|             env->PC[env->current_tc], env->CP0_EPC);
 | |
|     if (env->CP0_Status & (1 << CP0St_ERL))
 | |
|         fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
 | |
|     if (env->hflags & MIPS_HFLAG_DM)
 | |
|         fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
 | |
|     fputs("\n", logfile);
 | |
| }
 | |
| 
 | |
| void debug_post_eret (void)
 | |
| {
 | |
|     fprintf(logfile, "  =>  PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
 | |
|             env->PC[env->current_tc], env->CP0_EPC);
 | |
|     if (env->CP0_Status & (1 << CP0St_ERL))
 | |
|         fprintf(logfile, " ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
 | |
|     if (env->hflags & MIPS_HFLAG_DM)
 | |
|         fprintf(logfile, " DEPC " TARGET_FMT_lx, env->CP0_DEPC);
 | |
|     if (env->hflags & MIPS_HFLAG_UM)
 | |
|         fputs(", UM\n", logfile);
 | |
|     else
 | |
|         fputs("\n", logfile);
 | |
| }
 | |
| 
 | |
| void do_pmon (int function)
 | |
| {
 | |
|     function /= 2;
 | |
|     switch (function) {
 | |
|     case 2: /* TODO: char inbyte(int waitflag); */
 | |
|         if (env->gpr[4][env->current_tc] == 0)
 | |
|             env->gpr[2][env->current_tc] = -1;
 | |
|         /* Fall through */
 | |
|     case 11: /* TODO: char inbyte (void); */
 | |
|         env->gpr[2][env->current_tc] = -1;
 | |
|         break;
 | |
|     case 3:
 | |
|     case 12:
 | |
|         printf("%c", (char)(env->gpr[4][env->current_tc] & 0xFF));
 | |
|         break;
 | |
|     case 17:
 | |
|         break;
 | |
|     case 158:
 | |
|         {
 | |
|             unsigned char *fmt = (void *)(unsigned long)env->gpr[4][env->current_tc];
 | |
|             printf("%s", fmt);
 | |
|         }
 | |
|         break;
 | |
|     }
 | |
| }
 | |
| 
 | |
| #if !defined(CONFIG_USER_ONLY)
 | |
| 
 | |
| static void do_unaligned_access (target_ulong addr, int is_write, int is_user, void *retaddr);
 | |
| 
 | |
| #define MMUSUFFIX _mmu
 | |
| #define ALIGNED_ONLY
 | |
| 
 | |
| #define SHIFT 0
 | |
| #include "softmmu_template.h"
 | |
| 
 | |
| #define SHIFT 1
 | |
| #include "softmmu_template.h"
 | |
| 
 | |
| #define SHIFT 2
 | |
| #include "softmmu_template.h"
 | |
| 
 | |
| #define SHIFT 3
 | |
| #include "softmmu_template.h"
 | |
| 
 | |
| static void do_unaligned_access (target_ulong addr, int is_write, int is_user, void *retaddr)
 | |
| {
 | |
|     env->CP0_BadVAddr = addr;
 | |
|     do_restore_state (retaddr);
 | |
|     do_raise_exception ((is_write == 1) ? EXCP_AdES : EXCP_AdEL);
 | |
| }
 | |
| 
 | |
| void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr)
 | |
| {
 | |
|     TranslationBlock *tb;
 | |
|     CPUState *saved_env;
 | |
|     unsigned long pc;
 | |
|     int ret;
 | |
| 
 | |
|     /* XXX: hack to restore env in all cases, even if not called from
 | |
|        generated code */
 | |
|     saved_env = env;
 | |
|     env = cpu_single_env;
 | |
|     ret = cpu_mips_handle_mmu_fault(env, addr, is_write, is_user, 1);
 | |
|     if (ret) {
 | |
|         if (retaddr) {
 | |
|             /* now we have a real cpu fault */
 | |
|             pc = (unsigned long)retaddr;
 | |
|             tb = tb_find_pc(pc);
 | |
|             if (tb) {
 | |
|                 /* the PC is inside the translated code. It means that we have
 | |
|                    a virtual CPU fault */
 | |
|                 cpu_restore_state(tb, env, pc, NULL);
 | |
|             }
 | |
|         }
 | |
|         do_raise_exception_err(env->exception_index, env->error_code);
 | |
|     }
 | |
|     env = saved_env;
 | |
| }
 | |
| 
 | |
| #endif
 | |
| 
 | |
| /* Complex FPU operations which may need stack space. */
 | |
| 
 | |
| #define FLOAT_SIGN32 (1 << 31)
 | |
| #define FLOAT_SIGN64 (1ULL << 63)
 | |
| #define FLOAT_ONE32 (0x3f8 << 20)
 | |
| #define FLOAT_ONE64 (0x3ffULL << 52)
 | |
| #define FLOAT_TWO32 (1 << 30)
 | |
| #define FLOAT_TWO64 (1ULL << 62)
 | |
| #define FLOAT_QNAN32 0x7fbfffff
 | |
| #define FLOAT_QNAN64 0x7ff7ffffffffffffULL
 | |
| #define FLOAT_SNAN32 0x7fffffff
 | |
| #define FLOAT_SNAN64 0x7fffffffffffffffULL
 | |
| 
 | |
| /* convert MIPS rounding mode in FCR31 to IEEE library */
 | |
| unsigned int ieee_rm[] = {
 | |
|     float_round_nearest_even,
 | |
|     float_round_to_zero,
 | |
|     float_round_up,
 | |
|     float_round_down
 | |
| };
 | |
| 
 | |
| #define RESTORE_ROUNDING_MODE \
 | |
|     set_float_rounding_mode(ieee_rm[env->fpu->fcr31 & 3], &env->fpu->fp_status)
 | |
| 
 | |
| void do_cfc1 (int reg)
 | |
| {
 | |
|     switch (reg) {
 | |
|     case 0:
 | |
|         T0 = (int32_t)env->fpu->fcr0;
 | |
|         break;
 | |
|     case 25:
 | |
|         T0 = ((env->fpu->fcr31 >> 24) & 0xfe) | ((env->fpu->fcr31 >> 23) & 0x1);
 | |
|         break;
 | |
|     case 26:
 | |
|         T0 = env->fpu->fcr31 & 0x0003f07c;
 | |
|         break;
 | |
|     case 28:
 | |
|         T0 = (env->fpu->fcr31 & 0x00000f83) | ((env->fpu->fcr31 >> 22) & 0x4);
 | |
|         break;
 | |
|     default:
 | |
|         T0 = (int32_t)env->fpu->fcr31;
 | |
|         break;
 | |
|     }
 | |
| }
 | |
| 
 | |
| void do_ctc1 (int reg)
 | |
| {
 | |
|     switch(reg) {
 | |
|     case 25:
 | |
|         if (T0 & 0xffffff00)
 | |
|             return;
 | |
|         env->fpu->fcr31 = (env->fpu->fcr31 & 0x017fffff) | ((T0 & 0xfe) << 24) |
 | |
|                      ((T0 & 0x1) << 23);
 | |
|         break;
 | |
|     case 26:
 | |
|         if (T0 & 0x007c0000)
 | |
|             return;
 | |
|         env->fpu->fcr31 = (env->fpu->fcr31 & 0xfffc0f83) | (T0 & 0x0003f07c);
 | |
|         break;
 | |
|     case 28:
 | |
|         if (T0 & 0x007c0000)
 | |
|             return;
 | |
|         env->fpu->fcr31 = (env->fpu->fcr31 & 0xfefff07c) | (T0 & 0x00000f83) |
 | |
|                      ((T0 & 0x4) << 22);
 | |
|         break;
 | |
|     case 31:
 | |
|         if (T0 & 0x007c0000)
 | |
|             return;
 | |
|         env->fpu->fcr31 = T0;
 | |
|         break;
 | |
|     default:
 | |
|         return;
 | |
|     }
 | |
|     /* set rounding mode */
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     if ((GET_FP_ENABLE(env->fpu->fcr31) | 0x20) & GET_FP_CAUSE(env->fpu->fcr31))
 | |
|         do_raise_exception(EXCP_FPE);
 | |
| }
 | |
| 
 | |
| inline char ieee_ex_to_mips(char xcpt)
 | |
| {
 | |
|     return (xcpt & float_flag_inexact) >> 5 |
 | |
|            (xcpt & float_flag_underflow) >> 3 |
 | |
|            (xcpt & float_flag_overflow) >> 1 |
 | |
|            (xcpt & float_flag_divbyzero) << 1 |
 | |
|            (xcpt & float_flag_invalid) << 4;
 | |
| }
 | |
| 
 | |
| inline char mips_ex_to_ieee(char xcpt)
 | |
| {
 | |
|     return (xcpt & FP_INEXACT) << 5 |
 | |
|            (xcpt & FP_UNDERFLOW) << 3 |
 | |
|            (xcpt & FP_OVERFLOW) << 1 |
 | |
|            (xcpt & FP_DIV0) >> 1 |
 | |
|            (xcpt & FP_INVALID) >> 4;
 | |
| }
 | |
| 
 | |
| inline void update_fcr31(void)
 | |
| {
 | |
|     int tmp = ieee_ex_to_mips(get_float_exception_flags(&env->fpu->fp_status));
 | |
| 
 | |
|     SET_FP_CAUSE(env->fpu->fcr31, tmp);
 | |
|     if (GET_FP_ENABLE(env->fpu->fcr31) & tmp)
 | |
|         do_raise_exception(EXCP_FPE);
 | |
|     else
 | |
|         UPDATE_FP_FLAGS(env->fpu->fcr31, tmp);
 | |
| }
 | |
| 
 | |
| #define FLOAT_OP(name, p) void do_float_##name##_##p(void)
 | |
| 
 | |
| FLOAT_OP(cvtd, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = float32_to_float64(FST0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvtd, w)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = int32_to_float64(WT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvtd, l)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = int64_to_float64(DT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvtl, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     DT2 = float64_to_int64(FDT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(cvtl, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     DT2 = float32_to_int64(FST0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| 
 | |
| FLOAT_OP(cvtps, pw)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = int32_to_float32(WT0, &env->fpu->fp_status);
 | |
|     FSTH2 = int32_to_float32(WTH0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvtpw, ps)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     WT2 = float32_to_int32(FST0, &env->fpu->fp_status);
 | |
|     WTH2 = float32_to_int32(FSTH0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| FLOAT_OP(cvts, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float64_to_float32(FDT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvts, w)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = int32_to_float32(WT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvts, l)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = int64_to_float32(DT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvts, pl)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     WT2 = WT0;
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvts, pu)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     WT2 = WTH0;
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(cvtw, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     WT2 = float32_to_int32(FST0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| FLOAT_OP(cvtw, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     WT2 = float64_to_int32(FDT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| 
 | |
| FLOAT_OP(roundl, d)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status);
 | |
|     DT2 = float64_to_int64(FDT0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(roundl, s)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status);
 | |
|     DT2 = float32_to_int64(FST0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(roundw, d)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status);
 | |
|     WT2 = float64_to_int32(FDT0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| FLOAT_OP(roundw, s)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_nearest_even, &env->fpu->fp_status);
 | |
|     WT2 = float32_to_int32(FST0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| 
 | |
| FLOAT_OP(truncl, d)
 | |
| {
 | |
|     DT2 = float64_to_int64_round_to_zero(FDT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(truncl, s)
 | |
| {
 | |
|     DT2 = float32_to_int64_round_to_zero(FST0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(truncw, d)
 | |
| {
 | |
|     WT2 = float64_to_int32_round_to_zero(FDT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| FLOAT_OP(truncw, s)
 | |
| {
 | |
|     WT2 = float32_to_int32_round_to_zero(FST0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| 
 | |
| FLOAT_OP(ceill, d)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_up, &env->fpu->fp_status);
 | |
|     DT2 = float64_to_int64(FDT0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(ceill, s)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_up, &env->fpu->fp_status);
 | |
|     DT2 = float32_to_int64(FST0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(ceilw, d)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_up, &env->fpu->fp_status);
 | |
|     WT2 = float64_to_int32(FDT0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| FLOAT_OP(ceilw, s)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_up, &env->fpu->fp_status);
 | |
|     WT2 = float32_to_int32(FST0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| 
 | |
| FLOAT_OP(floorl, d)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_down, &env->fpu->fp_status);
 | |
|     DT2 = float64_to_int64(FDT0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(floorl, s)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_down, &env->fpu->fp_status);
 | |
|     DT2 = float32_to_int64(FST0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         DT2 = FLOAT_SNAN64;
 | |
| }
 | |
| FLOAT_OP(floorw, d)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_down, &env->fpu->fp_status);
 | |
|     WT2 = float64_to_int32(FDT0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| FLOAT_OP(floorw, s)
 | |
| {
 | |
|     set_float_rounding_mode(float_round_down, &env->fpu->fp_status);
 | |
|     WT2 = float32_to_int32(FST0, &env->fpu->fp_status);
 | |
|     RESTORE_ROUNDING_MODE;
 | |
|     update_fcr31();
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & (FP_OVERFLOW | FP_INVALID))
 | |
|         WT2 = FLOAT_SNAN32;
 | |
| }
 | |
| 
 | |
| /* MIPS specific unary operations */
 | |
| FLOAT_OP(recip, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_div(FLOAT_ONE64, FDT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(recip, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| FLOAT_OP(rsqrt, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_sqrt(FDT0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_div(FLOAT_ONE64, FDT2, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(rsqrt, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_sqrt(FST0, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| FLOAT_OP(recip1, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_div(FLOAT_ONE64, FDT0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(recip1, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(recip1, ps)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FLOAT_ONE32, FST0, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_div(FLOAT_ONE32, FSTH0, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| FLOAT_OP(rsqrt1, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_sqrt(FDT0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_div(FLOAT_ONE64, FDT2, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(rsqrt1, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_sqrt(FST0, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(rsqrt1, ps)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_sqrt(FST0, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_sqrt(FSTH0, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FLOAT_ONE32, FST2, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_div(FLOAT_ONE32, FSTH2, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| /* binary operations */
 | |
| #define FLOAT_BINOP(name) \
 | |
| FLOAT_OP(name, d)         \
 | |
| {                         \
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);            \
 | |
|     FDT2 = float64_ ## name (FDT0, FDT1, &env->fpu->fp_status);    \
 | |
|     update_fcr31();                                                \
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID)                \
 | |
|         FDT2 = FLOAT_QNAN64;                                       \
 | |
| }                         \
 | |
| FLOAT_OP(name, s)         \
 | |
| {                         \
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);            \
 | |
|     FST2 = float32_ ## name (FST0, FST1, &env->fpu->fp_status);    \
 | |
|     update_fcr31();                                                \
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID)                \
 | |
|         FST2 = FLOAT_QNAN32;                                       \
 | |
| }                         \
 | |
| FLOAT_OP(name, ps)        \
 | |
| {                         \
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);            \
 | |
|     FST2 = float32_ ## name (FST0, FST1, &env->fpu->fp_status);    \
 | |
|     FSTH2 = float32_ ## name (FSTH0, FSTH1, &env->fpu->fp_status); \
 | |
|     update_fcr31();       \
 | |
|     if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) {              \
 | |
|         FST2 = FLOAT_QNAN32;                                       \
 | |
|         FSTH2 = FLOAT_QNAN32;                                      \
 | |
|     }                     \
 | |
| }
 | |
| FLOAT_BINOP(add)
 | |
| FLOAT_BINOP(sub)
 | |
| FLOAT_BINOP(mul)
 | |
| FLOAT_BINOP(div)
 | |
| #undef FLOAT_BINOP
 | |
| 
 | |
| /* MIPS specific binary operations */
 | |
| FLOAT_OP(recip2, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_mul(FDT0, FDT2, &env->fpu->fp_status);
 | |
|     FDT2 = float64_sub(FDT2, FLOAT_ONE64, &env->fpu->fp_status) ^ FLOAT_SIGN64;
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(recip2, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status);
 | |
|     FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status) ^ FLOAT_SIGN32;
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(recip2, ps)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_mul(FSTH0, FSTH2, &env->fpu->fp_status);
 | |
|     FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status) ^ FLOAT_SIGN32;
 | |
|     FSTH2 = float32_sub(FSTH2, FLOAT_ONE32, &env->fpu->fp_status) ^ FLOAT_SIGN32;
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| FLOAT_OP(rsqrt2, d)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FDT2 = float64_mul(FDT0, FDT2, &env->fpu->fp_status);
 | |
|     FDT2 = float64_sub(FDT2, FLOAT_ONE64, &env->fpu->fp_status);
 | |
|     FDT2 = float64_div(FDT2, FLOAT_TWO64, &env->fpu->fp_status) ^ FLOAT_SIGN64;
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(rsqrt2, s)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status);
 | |
|     FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FST2, FLOAT_TWO32, &env->fpu->fp_status) ^ FLOAT_SIGN32;
 | |
|     update_fcr31();
 | |
| }
 | |
| FLOAT_OP(rsqrt2, ps)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_mul(FST0, FST2, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_mul(FSTH0, FSTH2, &env->fpu->fp_status);
 | |
|     FST2 = float32_sub(FST2, FLOAT_ONE32, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_sub(FSTH2, FLOAT_ONE32, &env->fpu->fp_status);
 | |
|     FST2 = float32_div(FST2, FLOAT_TWO32, &env->fpu->fp_status) ^ FLOAT_SIGN32;
 | |
|     FSTH2 = float32_div(FSTH2, FLOAT_TWO32, &env->fpu->fp_status) ^ FLOAT_SIGN32;
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| FLOAT_OP(addr, ps)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_add (FST0, FSTH0, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_add (FST1, FSTH1, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| FLOAT_OP(mulr, ps)
 | |
| {
 | |
|     set_float_exception_flags(0, &env->fpu->fp_status);
 | |
|     FST2 = float32_mul (FST0, FSTH0, &env->fpu->fp_status);
 | |
|     FSTH2 = float32_mul (FST1, FSTH1, &env->fpu->fp_status);
 | |
|     update_fcr31();
 | |
| }
 | |
| 
 | |
| /* compare operations */
 | |
| #define FOP_COND_D(op, cond)                   \
 | |
| void do_cmp_d_ ## op (long cc)                 \
 | |
| {                                              \
 | |
|     int c = cond;                              \
 | |
|     update_fcr31();                            \
 | |
|     if (c)                                     \
 | |
|         SET_FP_COND(cc, env->fpu);             \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc, env->fpu);           \
 | |
| }                                              \
 | |
| void do_cmpabs_d_ ## op (long cc)              \
 | |
| {                                              \
 | |
|     int c;                                     \
 | |
|     FDT0 &= ~FLOAT_SIGN64;                     \
 | |
|     FDT1 &= ~FLOAT_SIGN64;                     \
 | |
|     c = cond;                                  \
 | |
|     update_fcr31();                            \
 | |
|     if (c)                                     \
 | |
|         SET_FP_COND(cc, env->fpu);             \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc, env->fpu);           \
 | |
| }
 | |
| 
 | |
| int float64_is_unordered(int sig, float64 a, float64 b STATUS_PARAM)
 | |
| {
 | |
|     if (float64_is_signaling_nan(a) ||
 | |
|         float64_is_signaling_nan(b) ||
 | |
|         (sig && (float64_is_nan(a) || float64_is_nan(b)))) {
 | |
|         float_raise(float_flag_invalid, status);
 | |
|         return 1;
 | |
|     } else if (float64_is_nan(a) || float64_is_nan(b)) {
 | |
|         return 1;
 | |
|     } else {
 | |
|         return 0;
 | |
|     }
 | |
| }
 | |
| 
 | |
| /* NOTE: the comma operator will make "cond" to eval to false,
 | |
|  * but float*_is_unordered() is still called. */
 | |
| FOP_COND_D(f,   (float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status), 0))
 | |
| FOP_COND_D(un,  float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status))
 | |
| FOP_COND_D(eq,  !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_eq(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(ueq, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status)  || float64_eq(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(olt, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_lt(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(ult, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status)  || float64_lt(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(ole, !float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status) && float64_le(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(ule, float64_is_unordered(0, FDT1, FDT0, &env->fpu->fp_status)  || float64_le(FDT0, FDT1, &env->fpu->fp_status))
 | |
| /* NOTE: the comma operator will make "cond" to eval to false,
 | |
|  * but float*_is_unordered() is still called. */
 | |
| FOP_COND_D(sf,  (float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status), 0))
 | |
| FOP_COND_D(ngle,float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status))
 | |
| FOP_COND_D(seq, !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_eq(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(ngl, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status)  || float64_eq(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(lt,  !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_lt(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(nge, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status)  || float64_lt(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(le,  !float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status) && float64_le(FDT0, FDT1, &env->fpu->fp_status))
 | |
| FOP_COND_D(ngt, float64_is_unordered(1, FDT1, FDT0, &env->fpu->fp_status)  || float64_le(FDT0, FDT1, &env->fpu->fp_status))
 | |
| 
 | |
| #define FOP_COND_S(op, cond)                   \
 | |
| void do_cmp_s_ ## op (long cc)                 \
 | |
| {                                              \
 | |
|     int c = cond;                              \
 | |
|     update_fcr31();                            \
 | |
|     if (c)                                     \
 | |
|         SET_FP_COND(cc, env->fpu);             \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc, env->fpu);           \
 | |
| }                                              \
 | |
| void do_cmpabs_s_ ## op (long cc)              \
 | |
| {                                              \
 | |
|     int c;                                     \
 | |
|     FST0 &= ~FLOAT_SIGN32;                     \
 | |
|     FST1 &= ~FLOAT_SIGN32;                     \
 | |
|     c = cond;                                  \
 | |
|     update_fcr31();                            \
 | |
|     if (c)                                     \
 | |
|         SET_FP_COND(cc, env->fpu);             \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc, env->fpu);           \
 | |
| }
 | |
| 
 | |
| flag float32_is_unordered(int sig, float32 a, float32 b STATUS_PARAM)
 | |
| {
 | |
|     if (float32_is_signaling_nan(a) ||
 | |
|         float32_is_signaling_nan(b) ||
 | |
|         (sig && (float32_is_nan(a) || float32_is_nan(b)))) {
 | |
|         float_raise(float_flag_invalid, status);
 | |
|         return 1;
 | |
|     } else if (float32_is_nan(a) || float32_is_nan(b)) {
 | |
|         return 1;
 | |
|     } else {
 | |
|         return 0;
 | |
|     }
 | |
| }
 | |
| 
 | |
| /* NOTE: the comma operator will make "cond" to eval to false,
 | |
|  * but float*_is_unordered() is still called. */
 | |
| FOP_COND_S(f,   (float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status), 0))
 | |
| FOP_COND_S(un,  float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status))
 | |
| FOP_COND_S(eq,  !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(ueq, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)  || float32_eq(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(olt, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(ult, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)  || float32_lt(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(ole, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(ule, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)  || float32_le(FST0, FST1, &env->fpu->fp_status))
 | |
| /* NOTE: the comma operator will make "cond" to eval to false,
 | |
|  * but float*_is_unordered() is still called. */
 | |
| FOP_COND_S(sf,  (float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status), 0))
 | |
| FOP_COND_S(ngle,float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status))
 | |
| FOP_COND_S(seq, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_eq(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(ngl, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)  || float32_eq(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(lt,  !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_lt(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(nge, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)  || float32_lt(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(le,  !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status) && float32_le(FST0, FST1, &env->fpu->fp_status))
 | |
| FOP_COND_S(ngt, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)  || float32_le(FST0, FST1, &env->fpu->fp_status))
 | |
| 
 | |
| #define FOP_COND_PS(op, condl, condh)          \
 | |
| void do_cmp_ps_ ## op (long cc)                \
 | |
| {                                              \
 | |
|     int cl = condl;                            \
 | |
|     int ch = condh;                            \
 | |
|     update_fcr31();                            \
 | |
|     if (cl)                                    \
 | |
|         SET_FP_COND(cc, env->fpu);             \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc, env->fpu);           \
 | |
|     if (ch)                                    \
 | |
|         SET_FP_COND(cc + 1, env->fpu);         \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc + 1, env->fpu);       \
 | |
| }                                              \
 | |
| void do_cmpabs_ps_ ## op (long cc)             \
 | |
| {                                              \
 | |
|     int cl, ch;                                \
 | |
|     FST0 &= ~FLOAT_SIGN32;                     \
 | |
|     FSTH0 &= ~FLOAT_SIGN32;                    \
 | |
|     FST1 &= ~FLOAT_SIGN32;                     \
 | |
|     FSTH1 &= ~FLOAT_SIGN32;                    \
 | |
|     cl = condl;                                \
 | |
|     ch = condh;                                \
 | |
|     update_fcr31();                            \
 | |
|     if (cl)                                    \
 | |
|         SET_FP_COND(cc, env->fpu);             \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc, env->fpu);           \
 | |
|     if (ch)                                    \
 | |
|         SET_FP_COND(cc + 1, env->fpu);         \
 | |
|     else                                       \
 | |
|         CLEAR_FP_COND(cc + 1, env->fpu);       \
 | |
| }
 | |
| 
 | |
| /* NOTE: the comma operator will make "cond" to eval to false,
 | |
|  * but float*_is_unordered() is still called. */
 | |
| FOP_COND_PS(f,   (float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status), 0),
 | |
|                  (float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status), 0))
 | |
| FOP_COND_PS(un,  float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status))
 | |
| FOP_COND_PS(eq,  !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)   && float32_eq(FST0, FST1, &env->fpu->fp_status),
 | |
|                  !float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(ueq, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)    || float32_eq(FST0, FST1, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status)  || float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(olt, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)   && float32_lt(FST0, FST1, &env->fpu->fp_status),
 | |
|                  !float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(ult, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)    || float32_lt(FST0, FST1, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status)  || float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(ole, !float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)   && float32_le(FST0, FST1, &env->fpu->fp_status),
 | |
|                  !float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status) && float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(ule, float32_is_unordered(0, FST1, FST0, &env->fpu->fp_status)    || float32_le(FST0, FST1, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(0, FSTH1, FSTH0, &env->fpu->fp_status)  || float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| /* NOTE: the comma operator will make "cond" to eval to false,
 | |
|  * but float*_is_unordered() is still called. */
 | |
| FOP_COND_PS(sf,  (float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status), 0),
 | |
|                  (float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status), 0))
 | |
| FOP_COND_PS(ngle,float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status))
 | |
| FOP_COND_PS(seq, !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)   && float32_eq(FST0, FST1, &env->fpu->fp_status),
 | |
|                  !float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(ngl, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)    || float32_eq(FST0, FST1, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status)  || float32_eq(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(lt,  !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)   && float32_lt(FST0, FST1, &env->fpu->fp_status),
 | |
|                  !float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(nge, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)    || float32_lt(FST0, FST1, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status)  || float32_lt(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(le,  !float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)   && float32_le(FST0, FST1, &env->fpu->fp_status),
 | |
|                  !float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status) && float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
 | |
| FOP_COND_PS(ngt, float32_is_unordered(1, FST1, FST0, &env->fpu->fp_status)    || float32_le(FST0, FST1, &env->fpu->fp_status),
 | |
|                  float32_is_unordered(1, FSTH1, FSTH0, &env->fpu->fp_status)  || float32_le(FSTH0, FSTH1, &env->fpu->fp_status))
 |