| /* |
| * MIPS emulation micro-operations for qemu. |
| * |
| * Copyright (c) 2004-2005 Jocelyn Mayer |
| * Copyright (c) 2006 Marius Groeger (FPU operations) |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * 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 "config.h" |
| #include "exec.h" |
| |
| #ifndef CALL_FROM_TB0 |
| #define CALL_FROM_TB0(func) func(); |
| #endif |
| #ifndef CALL_FROM_TB1 |
| #define CALL_FROM_TB1(func, arg0) func(arg0); |
| #endif |
| #ifndef CALL_FROM_TB1_CONST16 |
| #define CALL_FROM_TB1_CONST16(func, arg0) CALL_FROM_TB1(func, arg0); |
| #endif |
| #ifndef CALL_FROM_TB2 |
| #define CALL_FROM_TB2(func, arg0, arg1) func(arg0, arg1); |
| #endif |
| #ifndef CALL_FROM_TB2_CONST16 |
| #define CALL_FROM_TB2_CONST16(func, arg0, arg1) \ |
| CALL_FROM_TB2(func, arg0, arg1); |
| #endif |
| #ifndef CALL_FROM_TB3 |
| #define CALL_FROM_TB3(func, arg0, arg1, arg2) func(arg0, arg1, arg2); |
| #endif |
| #ifndef CALL_FROM_TB4 |
| #define CALL_FROM_TB4(func, arg0, arg1, arg2, arg3) \ |
| func(arg0, arg1, arg2, arg3); |
| #endif |
| |
| #define REG 1 |
| #include "op_template.c" |
| #undef REG |
| #define REG 2 |
| #include "op_template.c" |
| #undef REG |
| #define REG 3 |
| #include "op_template.c" |
| #undef REG |
| #define REG 4 |
| #include "op_template.c" |
| #undef REG |
| #define REG 5 |
| #include "op_template.c" |
| #undef REG |
| #define REG 6 |
| #include "op_template.c" |
| #undef REG |
| #define REG 7 |
| #include "op_template.c" |
| #undef REG |
| #define REG 8 |
| #include "op_template.c" |
| #undef REG |
| #define REG 9 |
| #include "op_template.c" |
| #undef REG |
| #define REG 10 |
| #include "op_template.c" |
| #undef REG |
| #define REG 11 |
| #include "op_template.c" |
| #undef REG |
| #define REG 12 |
| #include "op_template.c" |
| #undef REG |
| #define REG 13 |
| #include "op_template.c" |
| #undef REG |
| #define REG 14 |
| #include "op_template.c" |
| #undef REG |
| #define REG 15 |
| #include "op_template.c" |
| #undef REG |
| #define REG 16 |
| #include "op_template.c" |
| #undef REG |
| #define REG 17 |
| #include "op_template.c" |
| #undef REG |
| #define REG 18 |
| #include "op_template.c" |
| #undef REG |
| #define REG 19 |
| #include "op_template.c" |
| #undef REG |
| #define REG 20 |
| #include "op_template.c" |
| #undef REG |
| #define REG 21 |
| #include "op_template.c" |
| #undef REG |
| #define REG 22 |
| #include "op_template.c" |
| #undef REG |
| #define REG 23 |
| #include "op_template.c" |
| #undef REG |
| #define REG 24 |
| #include "op_template.c" |
| #undef REG |
| #define REG 25 |
| #include "op_template.c" |
| #undef REG |
| #define REG 26 |
| #include "op_template.c" |
| #undef REG |
| #define REG 27 |
| #include "op_template.c" |
| #undef REG |
| #define REG 28 |
| #include "op_template.c" |
| #undef REG |
| #define REG 29 |
| #include "op_template.c" |
| #undef REG |
| #define REG 30 |
| #include "op_template.c" |
| #undef REG |
| #define REG 31 |
| #include "op_template.c" |
| #undef REG |
| |
| #define TN T0 |
| #include "op_template.c" |
| #undef TN |
| #define TN T1 |
| #include "op_template.c" |
| #undef TN |
| #define TN T2 |
| #include "op_template.c" |
| #undef TN |
| |
| #ifdef MIPS_USES_FPU |
| |
| #define SFREG 0 |
| #define DFREG 0 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 1 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 2 |
| #define DFREG 2 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 3 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 4 |
| #define DFREG 4 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 5 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 6 |
| #define DFREG 6 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 7 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 8 |
| #define DFREG 8 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 9 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 10 |
| #define DFREG 10 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 11 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 12 |
| #define DFREG 12 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 13 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 14 |
| #define DFREG 14 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 15 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 16 |
| #define DFREG 16 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 17 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 18 |
| #define DFREG 18 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 19 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 20 |
| #define DFREG 20 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 21 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 22 |
| #define DFREG 22 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 23 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 24 |
| #define DFREG 24 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 25 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 26 |
| #define DFREG 26 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 27 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 28 |
| #define DFREG 28 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 29 |
| #include "fop_template.c" |
| #undef SFREG |
| #define SFREG 30 |
| #define DFREG 30 |
| #include "fop_template.c" |
| #undef SFREG |
| #undef DFREG |
| #define SFREG 31 |
| #include "fop_template.c" |
| #undef SFREG |
| |
| #define FTN |
| #include "fop_template.c" |
| #undef FTN |
| |
| #endif |
| |
| void op_dup_T0 (void) |
| { |
| T2 = T0; |
| RETURN(); |
| } |
| |
| void op_load_HI (void) |
| { |
| T0 = env->HI; |
| RETURN(); |
| } |
| |
| void op_store_HI (void) |
| { |
| env->HI = T0; |
| RETURN(); |
| } |
| |
| void op_load_LO (void) |
| { |
| T0 = env->LO; |
| RETURN(); |
| } |
| |
| void op_store_LO (void) |
| { |
| env->LO = T0; |
| RETURN(); |
| } |
| |
| /* Load and store */ |
| #define MEMSUFFIX _raw |
| #include "op_mem.c" |
| #undef MEMSUFFIX |
| #if !defined(CONFIG_USER_ONLY) |
| #define MEMSUFFIX _user |
| #include "op_mem.c" |
| #undef MEMSUFFIX |
| |
| #define MEMSUFFIX _kernel |
| #include "op_mem.c" |
| #undef MEMSUFFIX |
| #endif |
| |
| /* Arithmetic */ |
| void op_add (void) |
| { |
| T0 += T1; |
| RETURN(); |
| } |
| |
| void op_addo (void) |
| { |
| target_ulong tmp; |
| |
| tmp = T0; |
| T0 += T1; |
| if (((tmp ^ T1 ^ (-1)) & (T0 ^ T1)) >> 31) { |
| /* operands of same sign, result different sign */ |
| CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW); |
| } |
| RETURN(); |
| } |
| |
| void op_sub (void) |
| { |
| T0 -= T1; |
| RETURN(); |
| } |
| |
| void op_subo (void) |
| { |
| target_ulong tmp; |
| |
| tmp = T0; |
| T0 = (int32_t)T0 - (int32_t)T1; |
| if (((tmp ^ T1) & (tmp ^ T0)) >> 31) { |
| /* operands of different sign, first operand and result different sign */ |
| CALL_FROM_TB1(do_raise_exception_direct, EXCP_OVERFLOW); |
| } |
| RETURN(); |
| } |
| |
| void op_mul (void) |
| { |
| T0 = (int32_t)T0 * (int32_t)T1; |
| RETURN(); |
| } |
| |
| void op_div (void) |
| { |
| if (T1 != 0) { |
| env->LO = (int32_t)T0 / (int32_t)T1; |
| env->HI = (int32_t)T0 % (int32_t)T1; |
| } |
| RETURN(); |
| } |
| |
| void op_divu (void) |
| { |
| if (T1 != 0) { |
| env->LO = T0 / T1; |
| env->HI = T0 % T1; |
| } |
| RETURN(); |
| } |
| |
| /* Logical */ |
| void op_and (void) |
| { |
| T0 &= T1; |
| RETURN(); |
| } |
| |
| void op_nor (void) |
| { |
| T0 = ~(T0 | T1); |
| RETURN(); |
| } |
| |
| void op_or (void) |
| { |
| T0 |= T1; |
| RETURN(); |
| } |
| |
| void op_xor (void) |
| { |
| T0 ^= T1; |
| RETURN(); |
| } |
| |
| void op_sll (void) |
| { |
| T0 = T0 << T1; |
| RETURN(); |
| } |
| |
| void op_sra (void) |
| { |
| T0 = (int32_t)T0 >> T1; |
| RETURN(); |
| } |
| |
| void op_srl (void) |
| { |
| T0 = T0 >> T1; |
| RETURN(); |
| } |
| |
| void op_sllv (void) |
| { |
| T0 = T1 << (T0 & 0x1F); |
| RETURN(); |
| } |
| |
| void op_srav (void) |
| { |
| T0 = (int32_t)T1 >> (T0 & 0x1F); |
| RETURN(); |
| } |
| |
| void op_srlv (void) |
| { |
| T0 = T1 >> (T0 & 0x1F); |
| RETURN(); |
| } |
| |
| void op_clo (void) |
| { |
| int n; |
| |
| if (T0 == (target_ulong)-1) { |
| T0 = 32; |
| } else { |
| for (n = 0; n < 32; n++) { |
| if (!(T0 & (1 << 31))) |
| break; |
| T0 = T0 << 1; |
| } |
| T0 = n; |
| } |
| RETURN(); |
| } |
| |
| void op_clz (void) |
| { |
| int n; |
| |
| if (T0 == 0) { |
| T0 = 32; |
| } else { |
| for (n = 0; n < 32; n++) { |
| if (T0 & (1 << 31)) |
| break; |
| T0 = T0 << 1; |
| } |
| T0 = n; |
| } |
| RETURN(); |
| } |
| |
| /* 64 bits arithmetic */ |
| #if (HOST_LONG_BITS == 64) |
| static inline uint64_t get_HILO (void) |
| { |
| return ((uint64_t)env->HI << 32) | (uint64_t)env->LO; |
| } |
| |
| static inline void set_HILO (uint64_t HILO) |
| { |
| env->LO = HILO & 0xFFFFFFFF; |
| env->HI = HILO >> 32; |
| } |
| |
| void op_mult (void) |
| { |
| set_HILO((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
| RETURN(); |
| } |
| |
| void op_multu (void) |
| { |
| set_HILO((uint64_t)T0 * (uint64_t)T1); |
| RETURN(); |
| } |
| |
| void op_madd (void) |
| { |
| int64_t tmp; |
| |
| tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
| set_HILO((int64_t)get_HILO() + tmp); |
| RETURN(); |
| } |
| |
| void op_maddu (void) |
| { |
| uint64_t tmp; |
| |
| tmp = ((uint64_t)T0 * (uint64_t)T1); |
| set_HILO(get_HILO() + tmp); |
| RETURN(); |
| } |
| |
| void op_msub (void) |
| { |
| int64_t tmp; |
| |
| tmp = ((int64_t)(int32_t)T0 * (int64_t)(int32_t)T1); |
| set_HILO((int64_t)get_HILO() - tmp); |
| RETURN(); |
| } |
| |
| void op_msubu (void) |
| { |
| uint64_t tmp; |
| |
| tmp = ((uint64_t)T0 * (uint64_t)T1); |
| set_HILO(get_HILO() - tmp); |
| RETURN(); |
| } |
| #else |
| void op_mult (void) |
| { |
| CALL_FROM_TB0(do_mult); |
| RETURN(); |
| } |
| |
| void op_multu (void) |
| { |
| CALL_FROM_TB0(do_multu); |
| RETURN(); |
| } |
| |
| void op_madd (void) |
| { |
| CALL_FROM_TB0(do_madd); |
| RETURN(); |
| } |
| |
| void op_maddu (void) |
| { |
| CALL_FROM_TB0(do_maddu); |
| RETURN(); |
| } |
| |
| void op_msub (void) |
| { |
| CALL_FROM_TB0(do_msub); |
| RETURN(); |
| } |
| |
| void op_msubu (void) |
| { |
| CALL_FROM_TB0(do_msubu); |
| RETURN(); |
| } |
| #endif |
| |
| /* Conditional moves */ |
| void op_movn (void) |
| { |
| if (T1 != 0) |
| env->gpr[PARAM1] = T0; |
| RETURN(); |
| } |
| |
| void op_movz (void) |
| { |
| if (T1 == 0) |
| env->gpr[PARAM1] = T0; |
| RETURN(); |
| } |
| |
| /* Tests */ |
| #define OP_COND(name, cond) \ |
| void glue(op_, name) (void) \ |
| { \ |
| if (cond) { \ |
| T0 = 1; \ |
| } else { \ |
| T0 = 0; \ |
| } \ |
| RETURN(); \ |
| } |
| |
| OP_COND(eq, T0 == T1); |
| OP_COND(ne, T0 != T1); |
| OP_COND(ge, (int32_t)T0 >= (int32_t)T1); |
| OP_COND(geu, T0 >= T1); |
| OP_COND(lt, (int32_t)T0 < (int32_t)T1); |
| OP_COND(ltu, T0 < T1); |
| OP_COND(gez, (int32_t)T0 >= 0); |
| OP_COND(gtz, (int32_t)T0 > 0); |
| OP_COND(lez, (int32_t)T0 <= 0); |
| OP_COND(ltz, (int32_t)T0 < 0); |
| |
| /* Branchs */ |
| //#undef USE_DIRECT_JUMP |
| |
| void OPPROTO op_goto_tb0(void) |
| { |
| GOTO_TB(op_goto_tb0, PARAM1, 0); |
| } |
| |
| void OPPROTO op_goto_tb1(void) |
| { |
| GOTO_TB(op_goto_tb1, PARAM1, 1); |
| } |
| |
| /* Branch to register */ |
| void op_save_breg_target (void) |
| { |
| env->btarget = T2; |
| } |
| |
| void op_restore_breg_target (void) |
| { |
| T2 = env->btarget; |
| } |
| |
| void op_breg (void) |
| { |
| env->PC = T2; |
| RETURN(); |
| } |
| |
| void op_save_btarget (void) |
| { |
| env->btarget = PARAM1; |
| RETURN(); |
| } |
| |
| /* Conditional branch */ |
| void op_set_bcond (void) |
| { |
| T2 = T0; |
| RETURN(); |
| } |
| |
| void op_save_bcond (void) |
| { |
| env->bcond = T2; |
| RETURN(); |
| } |
| |
| void op_restore_bcond (void) |
| { |
| T2 = env->bcond; |
| RETURN(); |
| } |
| |
| void op_jnz_T2 (void) |
| { |
| if (T2) |
| GOTO_LABEL_PARAM(1); |
| RETURN(); |
| } |
| |
| /* CP0 functions */ |
| void op_mfc0 (void) |
| { |
| CALL_FROM_TB2(do_mfc0, PARAM1, PARAM2); |
| RETURN(); |
| } |
| |
| void op_mtc0 (void) |
| { |
| CALL_FROM_TB2(do_mtc0, PARAM1, PARAM2); |
| RETURN(); |
| } |
| |
| #ifdef MIPS_USES_FPU |
| |
| #if 0 |
| # define DEBUG_FPU_STATE() CALL_FROM_TB1(dump_fpu, env) |
| #else |
| # define DEBUG_FPU_STATE() do { } while(0) |
| #endif |
| |
| void op_cp1_enabled(void) |
| { |
| if (!(env->CP0_Status & (1 << CP0St_CU1))) { |
| CALL_FROM_TB2(do_raise_exception_err, EXCP_CpU, 1); |
| } |
| RETURN(); |
| } |
| |
| /* CP1 functions */ |
| void op_cfc1 (void) |
| { |
| if (T1 == 0) { |
| T0 = env->fcr0; |
| } |
| else { |
| /* fetch fcr31, masking unused bits */ |
| T0 = env->fcr31 & 0x0183FFFF; |
| } |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| /* 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->fcr31 & 3], &env->fp_status) |
| |
| void op_ctc1 (void) |
| { |
| if (T1 == 0) { |
| /* XXX should this throw an exception? |
| * don't write to FCR0. |
| * env->fcr0 = T0; |
| */ |
| } |
| else { |
| /* store new fcr31, masking unused bits */ |
| env->fcr31 = T0 & 0x0183FFFF; |
| |
| /* set rounding mode */ |
| RESTORE_ROUNDING_MODE; |
| |
| #ifndef CONFIG_SOFTFLOAT |
| /* no floating point exception for native float */ |
| SET_FP_ENABLE(env->fcr31, 0); |
| #endif |
| } |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| void op_mfc1 (void) |
| { |
| T0 = WT0; |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| void op_mtc1 (void) |
| { |
| WT0 = T0; |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| /* Float support. |
| Single precition routines have a "s" suffix, double precision a |
| "d" suffix. */ |
| |
| #define FLOAT_OP(name, p) void OPPROTO op_float_##name##_##p(void) |
| |
| FLOAT_OP(cvtd, w) |
| { |
| FDT2 = int32_to_float64(WT0, &env->fp_status); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(cvts, w) |
| { |
| FST2 = int32_to_float32(WT0, &env->fp_status); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(cvtw, s) |
| { |
| WT2 = float32_to_int32(FST0, &env->fp_status); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(cvtw, d) |
| { |
| WT2 = float64_to_int32(FDT0, &env->fp_status); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| FLOAT_OP(roundw, d) |
| { |
| set_float_rounding_mode(float_round_nearest_even, &env->fp_status); |
| WT2 = float64_round_to_int(FDT0, &env->fp_status); |
| RESTORE_ROUNDING_MODE; |
| |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(roundw, s) |
| { |
| set_float_rounding_mode(float_round_nearest_even, &env->fp_status); |
| WT2 = float32_round_to_int(FST0, &env->fp_status); |
| RESTORE_ROUNDING_MODE; |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| FLOAT_OP(truncw, d) |
| { |
| WT2 = float64_to_int32_round_to_zero(FDT0, &env->fp_status); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(truncw, s) |
| { |
| WT2 = float32_to_int32_round_to_zero(FST0, &env->fp_status); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| FLOAT_OP(ceilw, d) |
| { |
| set_float_rounding_mode(float_round_up, &env->fp_status); |
| WT2 = float64_round_to_int(FDT0, &env->fp_status); |
| RESTORE_ROUNDING_MODE; |
| |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(ceilw, s) |
| { |
| set_float_rounding_mode(float_round_up, &env->fp_status); |
| WT2 = float32_round_to_int(FST0, &env->fp_status); |
| RESTORE_ROUNDING_MODE; |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| FLOAT_OP(floorw, d) |
| { |
| set_float_rounding_mode(float_round_down, &env->fp_status); |
| WT2 = float64_round_to_int(FDT0, &env->fp_status); |
| RESTORE_ROUNDING_MODE; |
| |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(floorw, s) |
| { |
| set_float_rounding_mode(float_round_down, &env->fp_status); |
| WT2 = float32_round_to_int(FST0, &env->fp_status); |
| RESTORE_ROUNDING_MODE; |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| /* binary operations */ |
| #define FLOAT_BINOP(name) \ |
| FLOAT_OP(name, d) \ |
| { \ |
| FDT2 = float64_ ## name (FDT0, FDT1, &env->fp_status); \ |
| DEBUG_FPU_STATE(); \ |
| } \ |
| FLOAT_OP(name, s) \ |
| { \ |
| FST2 = float32_ ## name (FST0, FST1, &env->fp_status); \ |
| DEBUG_FPU_STATE(); \ |
| } |
| FLOAT_BINOP(add) |
| FLOAT_BINOP(sub) |
| FLOAT_BINOP(mul) |
| FLOAT_BINOP(div) |
| #undef FLOAT_BINOP |
| |
| /* unary operations, modifying fp status */ |
| #define FLOAT_UNOP(name) \ |
| FLOAT_OP(name, d) \ |
| { \ |
| FDT2 = float64_ ## name(FDT0, &env->fp_status); \ |
| DEBUG_FPU_STATE(); \ |
| } \ |
| FLOAT_OP(name, s) \ |
| { \ |
| FST2 = float32_ ## name(FST0, &env->fp_status); \ |
| DEBUG_FPU_STATE(); \ |
| } |
| FLOAT_UNOP(sqrt) |
| #undef FLOAT_UNOP |
| |
| /* unary operations, not modifying fp status */ |
| #define FLOAT_UNOP(name) \ |
| FLOAT_OP(name, d) \ |
| { \ |
| FDT2 = float64_ ## name(FDT0); \ |
| DEBUG_FPU_STATE(); \ |
| } \ |
| FLOAT_OP(name, s) \ |
| { \ |
| FST2 = float32_ ## name(FST0); \ |
| DEBUG_FPU_STATE(); \ |
| } |
| FLOAT_UNOP(abs) |
| FLOAT_UNOP(chs) |
| #undef FLOAT_UNOP |
| |
| FLOAT_OP(mov, d) |
| { |
| FDT2 = FDT0; |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| FLOAT_OP(mov, s) |
| { |
| FST2 = FST0; |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| #ifdef CONFIG_SOFTFLOAT |
| #define clear_invalid() do { \ |
| int flags = get_float_exception_flags(&env->fp_status); \ |
| flags &= ~float_flag_invalid; \ |
| set_float_exception_flags(flags, &env->fp_status); \ |
| } while(0) |
| #else |
| #define clear_invalid() do { } while(0) |
| #endif |
| |
| extern void dump_fpu_s(CPUState *env); |
| |
| #define FOP_COND(fmt, op, sig, cond) \ |
| void op_cmp_ ## fmt ## _ ## op (void) \ |
| { \ |
| if (cond) \ |
| SET_FP_COND(env->fcr31); \ |
| else \ |
| CLEAR_FP_COND(env->fcr31); \ |
| if (!sig) \ |
| clear_invalid(); \ |
| /*CALL_FROM_TB1(dump_fpu_s, env);*/ \ |
| DEBUG_FPU_STATE(); \ |
| RETURN(); \ |
| } |
| |
| flag float64_is_unordered(float64 a, float64 b STATUS_PARAM) |
| { |
| extern flag float64_is_nan( float64 a ); |
| if (float64_is_nan(a) || float64_is_nan(b)) { |
| float_raise(float_flag_invalid, status); |
| return 1; |
| } |
| else { |
| return 0; |
| } |
| } |
| |
| FOP_COND(d, f, 0, 0) |
| FOP_COND(d, un, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status)) |
| FOP_COND(d, eq, 0, float64_eq(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, ueq, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_eq(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, olt, 0, float64_lt(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, ult, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_lt(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, ole, 0, float64_le(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, ule, 0, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_le(FDT0, FDT1, &env->fp_status)) |
| /* NOTE: the comma operator will make "cond" to eval to false, |
| * but float*_is_unordered() is still called |
| */ |
| FOP_COND(d, sf, 1, (float64_is_unordered(FDT0, FDT1, &env->fp_status), 0)) |
| FOP_COND(d, ngle,1, float64_is_unordered(FDT1, FDT0, &env->fp_status)) |
| FOP_COND(d, seq, 1, float64_eq(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, ngl, 1, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_eq(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, lt, 1, float64_lt(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, nge, 1, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_lt(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, le, 1, float64_le(FDT0, FDT1, &env->fp_status)) |
| FOP_COND(d, ngt, 1, float64_is_unordered(FDT1, FDT0, &env->fp_status) || float64_le(FDT0, FDT1, &env->fp_status)) |
| |
| flag float32_is_unordered(float32 a, float32 b STATUS_PARAM) |
| { |
| extern flag float32_is_nan( float32 a ); |
| if (float32_is_nan(a) || float32_is_nan(b)) { |
| float_raise(float_flag_invalid, status); |
| 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, 0, 0) |
| FOP_COND(s, un, 0, float32_is_unordered(FST1, FST0, &env->fp_status)) |
| FOP_COND(s, eq, 0, float32_eq(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, ueq, 0, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, olt, 0, float32_lt(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, ult, 0, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, ole, 0, float32_le(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, ule, 0, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status)) |
| /* NOTE: the comma operator will make "cond" to eval to false, |
| * but float*_is_unordered() is still called |
| */ |
| FOP_COND(s, sf, 1, (float32_is_unordered(FST0, FST1, &env->fp_status), 0)) |
| FOP_COND(s, ngle,1, float32_is_unordered(FST1, FST0, &env->fp_status)) |
| FOP_COND(s, seq, 1, float32_eq(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, ngl, 1, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_eq(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, lt, 1, float32_lt(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, nge, 1, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_lt(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, le, 1, float32_le(FST0, FST1, &env->fp_status)) |
| FOP_COND(s, ngt, 1, float32_is_unordered(FST1, FST0, &env->fp_status) || float32_le(FST0, FST1, &env->fp_status)) |
| |
| void op_bc1f (void) |
| { |
| T0 = ! IS_FP_COND_SET(env->fcr31); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| |
| void op_bc1t (void) |
| { |
| T0 = IS_FP_COND_SET(env->fcr31); |
| DEBUG_FPU_STATE(); |
| RETURN(); |
| } |
| #endif /* MIPS_USES_FPU */ |
| |
| #if defined(MIPS_USES_R4K_TLB) |
| void op_tlbwi (void) |
| { |
| CALL_FROM_TB0(do_tlbwi); |
| RETURN(); |
| } |
| |
| void op_tlbwr (void) |
| { |
| CALL_FROM_TB0(do_tlbwr); |
| RETURN(); |
| } |
| |
| void op_tlbp (void) |
| { |
| CALL_FROM_TB0(do_tlbp); |
| RETURN(); |
| } |
| |
| void op_tlbr (void) |
| { |
| CALL_FROM_TB0(do_tlbr); |
| RETURN(); |
| } |
| #endif |
| |
| /* Specials */ |
| void op_pmon (void) |
| { |
| CALL_FROM_TB1(do_pmon, PARAM1); |
| } |
| |
| void op_trap (void) |
| { |
| if (T0) { |
| CALL_FROM_TB1(do_raise_exception_direct, EXCP_TRAP); |
| } |
| RETURN(); |
| } |
| |
| void op_debug (void) |
| { |
| CALL_FROM_TB1(do_raise_exception, EXCP_DEBUG); |
| } |
| |
| void op_set_lladdr (void) |
| { |
| env->CP0_LLAddr = T2; |
| } |
| |
| void debug_eret (void); |
| void op_eret (void) |
| { |
| CALL_FROM_TB0(debug_eret); |
| if (env->hflags & MIPS_HFLAG_ERL) { |
| env->PC = env->CP0_ErrorEPC; |
| env->hflags &= ~MIPS_HFLAG_ERL; |
| env->CP0_Status &= ~(1 << CP0St_ERL); |
| } else { |
| env->PC = env->CP0_EPC; |
| env->hflags &= ~MIPS_HFLAG_EXL; |
| env->CP0_Status &= ~(1 << CP0St_EXL); |
| } |
| env->CP0_LLAddr = 1; |
| } |
| |
| void op_deret (void) |
| { |
| CALL_FROM_TB0(debug_eret); |
| env->PC = env->CP0_DEPC; |
| } |
| |
| void op_save_state (void) |
| { |
| env->hflags = PARAM1; |
| RETURN(); |
| } |
| |
| void op_save_pc (void) |
| { |
| env->PC = PARAM1; |
| RETURN(); |
| } |
| |
| void op_raise_exception (void) |
| { |
| CALL_FROM_TB1(do_raise_exception, PARAM1); |
| RETURN(); |
| } |
| |
| void op_raise_exception_err (void) |
| { |
| CALL_FROM_TB2(do_raise_exception_err, PARAM1, PARAM2); |
| RETURN(); |
| } |
| |
| void op_exit_tb (void) |
| { |
| EXIT_TB(); |
| } |
| |
| void op_wait (void) |
| { |
| env->halted = 1; |
| CALL_FROM_TB1(do_raise_exception, EXCP_HLT); |
| } |
