| /* |
| * Alpha emulation cpu translation for qemu. |
| * |
| * Copyright (c) 2007 Jocelyn Mayer |
| * |
| * 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 <stdint.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| |
| #include "cpu.h" |
| #include "exec-all.h" |
| #include "disas.h" |
| |
| #define DO_SINGLE_STEP |
| #define GENERATE_NOP |
| #define ALPHA_DEBUG_DISAS |
| #define DO_TB_FLUSH |
| |
| typedef struct DisasContext DisasContext; |
| struct DisasContext { |
| uint64_t pc; |
| int mem_idx; |
| #if !defined (CONFIG_USER_ONLY) |
| int pal_mode; |
| #endif |
| uint32_t amask; |
| }; |
| |
| #ifdef USE_DIRECT_JUMP |
| #define TBPARAM(x) |
| #else |
| #define TBPARAM(x) (long)(x) |
| #endif |
| |
| enum { |
| #define DEF(s, n, copy_size) INDEX_op_ ## s, |
| #include "opc.h" |
| #undef DEF |
| NB_OPS, |
| }; |
| |
| static uint16_t *gen_opc_ptr; |
| static uint32_t *gen_opparam_ptr; |
| |
| #include "gen-op.h" |
| |
| static inline void gen_op_nop (void) |
| { |
| #if defined(GENERATE_NOP) |
| gen_op_no_op(); |
| #endif |
| } |
| |
| #define GEN32(func, NAME) \ |
| static GenOpFunc *NAME ## _table [32] = { \ |
| NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
| NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
| NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
| NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
| NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
| NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
| NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
| NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
| }; \ |
| static inline void func(int n) \ |
| { \ |
| NAME ## _table[n](); \ |
| } |
| |
| /* IR moves */ |
| /* Special hacks for ir31 */ |
| #define gen_op_load_T0_ir31 gen_op_reset_T0 |
| #define gen_op_load_T1_ir31 gen_op_reset_T1 |
| #define gen_op_load_T2_ir31 gen_op_reset_T2 |
| #define gen_op_store_T0_ir31 gen_op_nop |
| #define gen_op_store_T1_ir31 gen_op_nop |
| #define gen_op_store_T2_ir31 gen_op_nop |
| #define gen_op_cmov_ir31 gen_op_nop |
| GEN32(gen_op_load_T0_ir, gen_op_load_T0_ir); |
| GEN32(gen_op_load_T1_ir, gen_op_load_T1_ir); |
| GEN32(gen_op_load_T2_ir, gen_op_load_T2_ir); |
| GEN32(gen_op_store_T0_ir, gen_op_store_T0_ir); |
| GEN32(gen_op_store_T1_ir, gen_op_store_T1_ir); |
| GEN32(gen_op_store_T2_ir, gen_op_store_T2_ir); |
| GEN32(gen_op_cmov_ir, gen_op_cmov_ir); |
| |
| static inline void gen_load_ir (DisasContext *ctx, int irn, int Tn) |
| { |
| switch (Tn) { |
| case 0: |
| gen_op_load_T0_ir(irn); |
| break; |
| case 1: |
| gen_op_load_T1_ir(irn); |
| break; |
| case 2: |
| gen_op_load_T2_ir(irn); |
| break; |
| } |
| } |
| |
| static inline void gen_store_ir (DisasContext *ctx, int irn, int Tn) |
| { |
| switch (Tn) { |
| case 0: |
| gen_op_store_T0_ir(irn); |
| break; |
| case 1: |
| gen_op_store_T1_ir(irn); |
| break; |
| case 2: |
| gen_op_store_T2_ir(irn); |
| break; |
| } |
| } |
| |
| /* FIR moves */ |
| /* Special hacks for fir31 */ |
| #define gen_op_load_FT0_fir31 gen_op_reset_FT0 |
| #define gen_op_load_FT1_fir31 gen_op_reset_FT1 |
| #define gen_op_load_FT2_fir31 gen_op_reset_FT2 |
| #define gen_op_store_FT0_fir31 gen_op_nop |
| #define gen_op_store_FT1_fir31 gen_op_nop |
| #define gen_op_store_FT2_fir31 gen_op_nop |
| #define gen_op_cmov_fir31 gen_op_nop |
| GEN32(gen_op_load_FT0_fir, gen_op_load_FT0_fir); |
| GEN32(gen_op_load_FT1_fir, gen_op_load_FT1_fir); |
| GEN32(gen_op_load_FT2_fir, gen_op_load_FT2_fir); |
| GEN32(gen_op_store_FT0_fir, gen_op_store_FT0_fir); |
| GEN32(gen_op_store_FT1_fir, gen_op_store_FT1_fir); |
| GEN32(gen_op_store_FT2_fir, gen_op_store_FT2_fir); |
| GEN32(gen_op_cmov_fir, gen_op_cmov_fir); |
| |
| static inline void gen_load_fir (DisasContext *ctx, int firn, int Tn) |
| { |
| switch (Tn) { |
| case 0: |
| gen_op_load_FT0_fir(firn); |
| break; |
| case 1: |
| gen_op_load_FT1_fir(firn); |
| break; |
| case 2: |
| gen_op_load_FT2_fir(firn); |
| break; |
| } |
| } |
| |
| static inline void gen_store_fir (DisasContext *ctx, int firn, int Tn) |
| { |
| switch (Tn) { |
| case 0: |
| gen_op_store_FT0_fir(firn); |
| break; |
| case 1: |
| gen_op_store_FT1_fir(firn); |
| break; |
| case 2: |
| gen_op_store_FT2_fir(firn); |
| break; |
| } |
| } |
| |
| /* Memory moves */ |
| #if defined(CONFIG_USER_ONLY) |
| #define OP_LD_TABLE(width) \ |
| static GenOpFunc *gen_op_ld##width[] = { \ |
| &gen_op_ld##width##_raw, \ |
| } |
| #define OP_ST_TABLE(width) \ |
| static GenOpFunc *gen_op_st##width[] = { \ |
| &gen_op_st##width##_raw, \ |
| } |
| #else |
| #define OP_LD_TABLE(width) \ |
| static GenOpFunc *gen_op_ld##width[] = { \ |
| &gen_op_ld##width##_kernel, \ |
| &gen_op_ld##width##_user, /* executive */ \ |
| &gen_op_ld##width##_data, /* supervisor */ \ |
| &gen_op_ld##width##_data, /* user */ \ |
| } |
| #define OP_ST_TABLE(width) \ |
| static GenOpFunc *gen_op_st##width[] = { \ |
| &gen_op_st##width##_kernel, \ |
| &gen_op_st##width##_user, /* executive */ \ |
| &gen_op_st##width##_data, /* supervisor */ \ |
| &gen_op_st##width##_data, /* user */ \ |
| } |
| #endif |
| |
| #define GEN_LD(width) \ |
| OP_LD_TABLE(width); \ |
| static void gen_ld##width (DisasContext *ctx) \ |
| { \ |
| (*gen_op_ld##width[ctx->mem_idx])(); \ |
| } |
| |
| #define GEN_ST(width) \ |
| OP_ST_TABLE(width); \ |
| static void gen_st##width (DisasContext *ctx) \ |
| { \ |
| (*gen_op_st##width[ctx->mem_idx])(); \ |
| } |
| |
| GEN_LD(bu); |
| GEN_ST(b); |
| GEN_LD(wu); |
| GEN_ST(w); |
| GEN_LD(l); |
| GEN_ST(l); |
| GEN_LD(q); |
| GEN_ST(q); |
| GEN_LD(q_u); |
| GEN_ST(q_u); |
| GEN_LD(l_l); |
| GEN_ST(l_c); |
| GEN_LD(q_l); |
| GEN_ST(q_c); |
| |
| #if 0 /* currently unused */ |
| GEN_LD(f); |
| GEN_ST(f); |
| GEN_LD(g); |
| GEN_ST(g); |
| #endif /* 0 */ |
| GEN_LD(s); |
| GEN_ST(s); |
| GEN_LD(t); |
| GEN_ST(t); |
| |
| #if defined(__i386__) || defined(__x86_64__) |
| static inline void gen_op_set_s16_T0 (int16_t imm) |
| { |
| gen_op_set_s32_T0((int32_t)imm); |
| } |
| |
| static inline void gen_op_set_s16_T1 (int16_t imm) |
| { |
| gen_op_set_s32_T1((int32_t)imm); |
| } |
| |
| static inline void gen_op_set_u16_T0 (uint16_t imm) |
| { |
| gen_op_set_s32_T0((uint32_t)imm); |
| } |
| |
| static inline void gen_op_set_u16_T1 (uint16_t imm) |
| { |
| gen_op_set_s32_T1((uint32_t)imm); |
| } |
| #endif |
| |
| static inline void gen_set_sT0 (DisasContext *ctx, int64_t imm) |
| { |
| int32_t imm32; |
| int16_t imm16; |
| |
| imm32 = imm; |
| if (imm32 == imm) { |
| imm16 = imm; |
| if (imm16 == imm) { |
| if (imm == 0) { |
| gen_op_reset_T0(); |
| } else { |
| gen_op_set_s16_T0(imm16); |
| } |
| } else { |
| gen_op_set_s32_T0(imm32); |
| } |
| } else { |
| #if 0 // Qemu does not know how to do this... |
| gen_op_set_64_T0(imm); |
| #else |
| gen_op_set_64_T0(imm >> 32, imm); |
| #endif |
| } |
| } |
| |
| static inline void gen_set_sT1 (DisasContext *ctx, int64_t imm) |
| { |
| int32_t imm32; |
| int16_t imm16; |
| |
| imm32 = imm; |
| if (imm32 == imm) { |
| imm16 = imm; |
| if (imm16 == imm) { |
| if (imm == 0) { |
| gen_op_reset_T1(); |
| } else { |
| gen_op_set_s16_T1(imm16); |
| } |
| } else { |
| gen_op_set_s32_T1(imm32); |
| } |
| } else { |
| #if 0 // Qemu does not know how to do this... |
| gen_op_set_64_T1(imm); |
| #else |
| gen_op_set_64_T1(imm >> 32, imm); |
| #endif |
| } |
| } |
| |
| static inline void gen_set_uT0 (DisasContext *ctx, uint64_t imm) |
| { |
| if (!(imm >> 32)) { |
| if ((!imm >> 16)) { |
| if (imm == 0) |
| gen_op_reset_T0(); |
| else |
| gen_op_set_u16_T0(imm); |
| } else { |
| gen_op_set_u32_T0(imm); |
| } |
| } else { |
| #if 0 // Qemu does not know how to do this... |
| gen_op_set_64_T0(imm); |
| #else |
| gen_op_set_64_T0(imm >> 32, imm); |
| #endif |
| } |
| } |
| |
| static inline void gen_set_uT1 (DisasContext *ctx, uint64_t imm) |
| { |
| if (!(imm >> 32)) { |
| if ((!imm >> 16)) { |
| if (imm == 0) |
| gen_op_reset_T1(); |
| else |
| gen_op_set_u16_T1(imm); |
| } else { |
| gen_op_set_u32_T1(imm); |
| } |
| } else { |
| #if 0 // Qemu does not know how to do this... |
| gen_op_set_64_T1(imm); |
| #else |
| gen_op_set_64_T1(imm >> 32, imm); |
| #endif |
| } |
| } |
| |
| static inline void gen_update_pc (DisasContext *ctx) |
| { |
| if (!(ctx->pc >> 32)) { |
| gen_op_update_pc32(ctx->pc); |
| } else { |
| #if 0 // Qemu does not know how to do this... |
| gen_op_update_pc(ctx->pc); |
| #else |
| gen_op_update_pc(ctx->pc >> 32, ctx->pc); |
| #endif |
| } |
| } |
| |
| static inline void _gen_op_bcond (DisasContext *ctx) |
| { |
| #if 0 // Qemu does not know how to do this... |
| gen_op_bcond(ctx->pc); |
| #else |
| gen_op_bcond(ctx->pc >> 32, ctx->pc); |
| #endif |
| } |
| |
| static inline void gen_excp (DisasContext *ctx, int exception, int error_code) |
| { |
| gen_update_pc(ctx); |
| gen_op_excp(exception, error_code); |
| } |
| |
| static inline void gen_invalid (DisasContext *ctx) |
| { |
| gen_excp(ctx, EXCP_OPCDEC, 0); |
| } |
| |
| static void gen_load_mem (DisasContext *ctx, |
| void (*gen_load_op)(DisasContext *ctx), |
| int ra, int rb, int32_t disp16, int clear) |
| { |
| if (ra == 31 && disp16 == 0) { |
| /* UNOP */ |
| gen_op_nop(); |
| } else { |
| gen_load_ir(ctx, rb, 0); |
| if (disp16 != 0) { |
| gen_set_sT1(ctx, disp16); |
| gen_op_addq(); |
| } |
| if (clear) |
| gen_op_n7(); |
| (*gen_load_op)(ctx); |
| gen_store_ir(ctx, ra, 1); |
| } |
| } |
| |
| static void gen_store_mem (DisasContext *ctx, |
| void (*gen_store_op)(DisasContext *ctx), |
| int ra, int rb, int32_t disp16, int clear) |
| { |
| gen_load_ir(ctx, rb, 0); |
| if (disp16 != 0) { |
| gen_set_sT1(ctx, disp16); |
| gen_op_addq(); |
| } |
| if (clear) |
| gen_op_n7(); |
| gen_load_ir(ctx, ra, 1); |
| (*gen_store_op)(ctx); |
| } |
| |
| static void gen_load_fmem (DisasContext *ctx, |
| void (*gen_load_fop)(DisasContext *ctx), |
| int ra, int rb, int32_t disp16) |
| { |
| gen_load_ir(ctx, rb, 0); |
| if (disp16 != 0) { |
| gen_set_sT1(ctx, disp16); |
| gen_op_addq(); |
| } |
| (*gen_load_fop)(ctx); |
| gen_store_fir(ctx, ra, 1); |
| } |
| |
| static void gen_store_fmem (DisasContext *ctx, |
| void (*gen_store_fop)(DisasContext *ctx), |
| int ra, int rb, int32_t disp16) |
| { |
| gen_load_ir(ctx, rb, 0); |
| if (disp16 != 0) { |
| gen_set_sT1(ctx, disp16); |
| gen_op_addq(); |
| } |
| gen_load_fir(ctx, ra, 1); |
| (*gen_store_fop)(ctx); |
| } |
| |
| static void gen_bcond (DisasContext *ctx, void (*gen_test_op)(void), |
| int ra, int32_t disp16) |
| { |
| if (disp16 != 0) { |
| gen_set_uT0(ctx, ctx->pc); |
| gen_set_sT1(ctx, disp16 << 2); |
| gen_op_addq1(); |
| } else { |
| gen_set_uT1(ctx, ctx->pc); |
| } |
| gen_load_ir(ctx, ra, 0); |
| (*gen_test_op)(); |
| _gen_op_bcond(ctx); |
| } |
| |
| static void gen_fbcond (DisasContext *ctx, void (*gen_test_op)(void), |
| int ra, int32_t disp16) |
| { |
| if (disp16 != 0) { |
| gen_set_uT0(ctx, ctx->pc); |
| gen_set_sT1(ctx, disp16 << 2); |
| gen_op_addq1(); |
| } else { |
| gen_set_uT1(ctx, ctx->pc); |
| } |
| gen_load_fir(ctx, ra, 0); |
| (*gen_test_op)(); |
| _gen_op_bcond(ctx); |
| } |
| |
| static void gen_arith2 (DisasContext *ctx, void (*gen_arith_op)(void), |
| int rb, int rc, int islit, int8_t lit) |
| { |
| if (islit) |
| gen_set_sT0(ctx, lit); |
| else |
| gen_load_ir(ctx, rb, 0); |
| (*gen_arith_op)(); |
| gen_store_ir(ctx, rc, 0); |
| } |
| |
| static void gen_arith3 (DisasContext *ctx, void (*gen_arith_op)(void), |
| int ra, int rb, int rc, int islit, int8_t lit) |
| { |
| gen_load_ir(ctx, ra, 0); |
| if (islit) |
| gen_set_sT1(ctx, lit); |
| else |
| gen_load_ir(ctx, rb, 1); |
| (*gen_arith_op)(); |
| gen_store_ir(ctx, rc, 0); |
| } |
| |
| static void gen_cmov (DisasContext *ctx, void (*gen_test_op)(void), |
| int ra, int rb, int rc, int islit, int8_t lit) |
| { |
| gen_load_ir(ctx, ra, 1); |
| if (islit) |
| gen_set_sT0(ctx, lit); |
| else |
| gen_load_ir(ctx, rb, 0); |
| (*gen_test_op)(); |
| gen_op_cmov_ir(rc); |
| } |
| |
| static void gen_farith2 (DisasContext *ctx, void (*gen_arith_fop)(void), |
| int rb, int rc) |
| { |
| gen_load_fir(ctx, rb, 0); |
| (*gen_arith_fop)(); |
| gen_store_fir(ctx, rc, 0); |
| } |
| |
| static void gen_farith3 (DisasContext *ctx, void (*gen_arith_fop)(void), |
| int ra, int rb, int rc) |
| { |
| gen_load_fir(ctx, ra, 0); |
| gen_load_fir(ctx, rb, 1); |
| (*gen_arith_fop)(); |
| gen_store_fir(ctx, rc, 0); |
| } |
| |
| static void gen_fcmov (DisasContext *ctx, void (*gen_test_fop)(void), |
| int ra, int rb, int rc) |
| { |
| gen_load_fir(ctx, ra, 0); |
| gen_load_fir(ctx, rb, 1); |
| (*gen_test_fop)(); |
| gen_op_cmov_fir(rc); |
| } |
| |
| static void gen_fti (DisasContext *ctx, void (*gen_move_fop)(void), |
| int ra, int rc) |
| { |
| gen_load_fir(ctx, rc, 0); |
| (*gen_move_fop)(); |
| gen_store_ir(ctx, ra, 0); |
| } |
| |
| static void gen_itf (DisasContext *ctx, void (*gen_move_fop)(void), |
| int ra, int rc) |
| { |
| gen_load_ir(ctx, ra, 0); |
| (*gen_move_fop)(); |
| gen_store_fir(ctx, rc, 0); |
| } |
| |
| static void gen_s4addl (void) |
| { |
| gen_op_s4(); |
| gen_op_addl(); |
| } |
| |
| static void gen_s4subl (void) |
| { |
| gen_op_s4(); |
| gen_op_subl(); |
| } |
| |
| static void gen_s8addl (void) |
| { |
| gen_op_s8(); |
| gen_op_addl(); |
| } |
| |
| static void gen_s8subl (void) |
| { |
| gen_op_s8(); |
| gen_op_subl(); |
| } |
| |
| static void gen_s4addq (void) |
| { |
| gen_op_s4(); |
| gen_op_addq(); |
| } |
| |
| static void gen_s4subq (void) |
| { |
| gen_op_s4(); |
| gen_op_subq(); |
| } |
| |
| static void gen_s8addq (void) |
| { |
| gen_op_s8(); |
| gen_op_addq(); |
| } |
| |
| static void gen_s8subq (void) |
| { |
| gen_op_s8(); |
| gen_op_subq(); |
| } |
| |
| static void gen_amask (void) |
| { |
| gen_op_load_amask(); |
| gen_op_bic(); |
| } |
| |
| static int translate_one (DisasContext *ctx, uint32_t insn) |
| { |
| uint32_t palcode; |
| int32_t disp21, disp16, disp12; |
| uint16_t fn11, fn16; |
| uint8_t opc, ra, rb, rc, sbz, fpfn, fn7, fn2, islit; |
| int8_t lit; |
| int ret; |
| |
| /* Decode all instruction fields */ |
| opc = insn >> 26; |
| ra = (insn >> 21) & 0x1F; |
| rb = (insn >> 16) & 0x1F; |
| rc = insn & 0x1F; |
| sbz = (insn >> 13) & 0x07; |
| islit = (insn >> 12) & 1; |
| lit = (insn >> 13) & 0xFF; |
| palcode = insn & 0x03FFFFFF; |
| disp21 = ((int32_t)((insn & 0x001FFFFF) << 11)) >> 11; |
| disp16 = (int16_t)(insn & 0x0000FFFF); |
| disp12 = (int32_t)((insn & 0x00000FFF) << 20) >> 20; |
| fn16 = insn & 0x0000FFFF; |
| fn11 = (insn >> 5) & 0x000007FF; |
| fpfn = fn11 & 0x3F; |
| fn7 = (insn >> 5) & 0x0000007F; |
| fn2 = (insn >> 5) & 0x00000003; |
| ret = 0; |
| #if defined ALPHA_DEBUG_DISAS |
| if (logfile != NULL) { |
| fprintf(logfile, "opc %02x ra %d rb %d rc %d disp16 %04x\n", |
| opc, ra, rb, rc, disp16); |
| } |
| #endif |
| switch (opc) { |
| case 0x00: |
| /* CALL_PAL */ |
| if (palcode >= 0x80 && palcode < 0xC0) { |
| /* Unprivileged PAL call */ |
| gen_excp(ctx, EXCP_CALL_PAL + ((palcode & 0x1F) << 6), 0); |
| #if !defined (CONFIG_USER_ONLY) |
| } else if (palcode < 0x40) { |
| /* Privileged PAL code */ |
| if (ctx->mem_idx & 1) |
| goto invalid_opc; |
| else |
| gen_excp(ctx, EXCP_CALL_PALP + ((palcode & 0x1F) << 6), 0); |
| #endif |
| } else { |
| /* Invalid PAL call */ |
| goto invalid_opc; |
| } |
| ret = 3; |
| break; |
| case 0x01: |
| /* OPC01 */ |
| goto invalid_opc; |
| case 0x02: |
| /* OPC02 */ |
| goto invalid_opc; |
| case 0x03: |
| /* OPC03 */ |
| goto invalid_opc; |
| case 0x04: |
| /* OPC04 */ |
| goto invalid_opc; |
| case 0x05: |
| /* OPC05 */ |
| goto invalid_opc; |
| case 0x06: |
| /* OPC06 */ |
| goto invalid_opc; |
| case 0x07: |
| /* OPC07 */ |
| goto invalid_opc; |
| case 0x08: |
| /* LDA */ |
| gen_load_ir(ctx, rb, 0); |
| gen_set_sT1(ctx, disp16); |
| gen_op_addq(); |
| gen_store_ir(ctx, ra, 0); |
| break; |
| case 0x09: |
| /* LDAH */ |
| gen_load_ir(ctx, rb, 0); |
| gen_set_sT1(ctx, disp16 << 16); |
| gen_op_addq(); |
| gen_store_ir(ctx, ra, 0); |
| break; |
| case 0x0A: |
| /* LDBU */ |
| if (!(ctx->amask & AMASK_BWX)) |
| goto invalid_opc; |
| gen_load_mem(ctx, &gen_ldbu, ra, rb, disp16, 0); |
| break; |
| case 0x0B: |
| /* LDQ_U */ |
| gen_load_mem(ctx, &gen_ldq_u, ra, rb, disp16, 1); |
| break; |
| case 0x0C: |
| /* LDWU */ |
| if (!(ctx->amask & AMASK_BWX)) |
| goto invalid_opc; |
| gen_load_mem(ctx, &gen_ldwu, ra, rb, disp16, 0); |
| break; |
| case 0x0D: |
| /* STW */ |
| if (!(ctx->amask & AMASK_BWX)) |
| goto invalid_opc; |
| gen_store_mem(ctx, &gen_stw, ra, rb, disp16, 0); |
| break; |
| case 0x0E: |
| /* STB */ |
| if (!(ctx->amask & AMASK_BWX)) |
| goto invalid_opc; |
| gen_store_mem(ctx, &gen_stb, ra, rb, disp16, 0); |
| break; |
| case 0x0F: |
| /* STQ_U */ |
| gen_store_mem(ctx, &gen_stq_u, ra, rb, disp16, 1); |
| break; |
| case 0x10: |
| switch (fn7) { |
| case 0x00: |
| /* ADDL */ |
| gen_arith3(ctx, &gen_op_addl, ra, rb, rc, islit, lit); |
| break; |
| case 0x02: |
| /* S4ADDL */ |
| gen_arith3(ctx, &gen_s4addl, ra, rb, rc, islit, lit); |
| break; |
| case 0x09: |
| /* SUBL */ |
| gen_arith3(ctx, &gen_op_subl, ra, rb, rc, islit, lit); |
| break; |
| case 0x0B: |
| /* S4SUBL */ |
| gen_arith3(ctx, &gen_s4subl, ra, rb, rc, islit, lit); |
| break; |
| case 0x0F: |
| /* CMPBGE */ |
| gen_arith3(ctx, &gen_op_cmpbge, ra, rb, rc, islit, lit); |
| break; |
| case 0x12: |
| /* S8ADDL */ |
| gen_arith3(ctx, &gen_s8addl, ra, rb, rc, islit, lit); |
| break; |
| case 0x1B: |
| /* S8SUBL */ |
| gen_arith3(ctx, &gen_s8subl, ra, rb, rc, islit, lit); |
| break; |
| case 0x1D: |
| /* CMPULT */ |
| gen_arith3(ctx, &gen_op_cmpult, ra, rb, rc, islit, lit); |
| break; |
| case 0x20: |
| /* ADDQ */ |
| gen_arith3(ctx, &gen_op_addq, ra, rb, rc, islit, lit); |
| break; |
| case 0x22: |
| /* S4ADDQ */ |
| gen_arith3(ctx, &gen_s4addq, ra, rb, rc, islit, lit); |
| break; |
| case 0x29: |
| /* SUBQ */ |
| gen_arith3(ctx, &gen_op_subq, ra, rb, rc, islit, lit); |
| break; |
| case 0x2B: |
| /* S4SUBQ */ |
| gen_arith3(ctx, &gen_s4subq, ra, rb, rc, islit, lit); |
| break; |
| case 0x2D: |
| /* CMPEQ */ |
| gen_arith3(ctx, &gen_op_cmpeq, ra, rb, rc, islit, lit); |
| break; |
| case 0x32: |
| /* S8ADDQ */ |
| gen_arith3(ctx, &gen_s8addq, ra, rb, rc, islit, lit); |
| break; |
| case 0x3B: |
| /* S8SUBQ */ |
| gen_arith3(ctx, &gen_s8subq, ra, rb, rc, islit, lit); |
| break; |
| case 0x3D: |
| /* CMPULE */ |
| gen_arith3(ctx, &gen_op_cmpule, ra, rb, rc, islit, lit); |
| break; |
| case 0x40: |
| /* ADDL/V */ |
| gen_arith3(ctx, &gen_op_addlv, ra, rb, rc, islit, lit); |
| break; |
| case 0x49: |
| /* SUBL/V */ |
| gen_arith3(ctx, &gen_op_sublv, ra, rb, rc, islit, lit); |
| break; |
| case 0x4D: |
| /* CMPLT */ |
| gen_arith3(ctx, &gen_op_cmplt, ra, rb, rc, islit, lit); |
| break; |
| case 0x60: |
| /* ADDQ/V */ |
| gen_arith3(ctx, &gen_op_addqv, ra, rb, rc, islit, lit); |
| break; |
| case 0x69: |
| /* SUBQ/V */ |
| gen_arith3(ctx, &gen_op_subqv, ra, rb, rc, islit, lit); |
| break; |
| case 0x6D: |
| /* CMPLE */ |
| gen_arith3(ctx, &gen_op_cmple, ra, rb, rc, islit, lit); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x11: |
| switch (fn7) { |
| case 0x00: |
| /* AND */ |
| gen_arith3(ctx, &gen_op_and, ra, rb, rc, islit, lit); |
| break; |
| case 0x08: |
| /* BIC */ |
| gen_arith3(ctx, &gen_op_bic, ra, rb, rc, islit, lit); |
| break; |
| case 0x14: |
| /* CMOVLBS */ |
| gen_cmov(ctx, &gen_op_cmplbs, ra, rb, rc, islit, lit); |
| break; |
| case 0x16: |
| /* CMOVLBC */ |
| gen_cmov(ctx, &gen_op_cmplbc, ra, rb, rc, islit, lit); |
| break; |
| case 0x20: |
| /* BIS */ |
| if (ra == rb || ra == 31 || rb == 31) { |
| if (ra == 31 && rc == 31) { |
| /* NOP */ |
| gen_op_nop(); |
| } else { |
| /* MOV */ |
| gen_load_ir(ctx, rb, 0); |
| gen_store_ir(ctx, rc, 0); |
| } |
| } else { |
| gen_arith3(ctx, &gen_op_bis, ra, rb, rc, islit, lit); |
| } |
| break; |
| case 0x24: |
| /* CMOVEQ */ |
| gen_cmov(ctx, &gen_op_cmpeqz, ra, rb, rc, islit, lit); |
| break; |
| case 0x26: |
| /* CMOVNE */ |
| gen_cmov(ctx, &gen_op_cmpnez, ra, rb, rc, islit, lit); |
| break; |
| case 0x28: |
| /* ORNOT */ |
| gen_arith3(ctx, &gen_op_ornot, ra, rb, rc, islit, lit); |
| break; |
| case 0x40: |
| /* XOR */ |
| gen_arith3(ctx, &gen_op_xor, ra, rb, rc, islit, lit); |
| break; |
| case 0x44: |
| /* CMOVLT */ |
| gen_cmov(ctx, &gen_op_cmpltz, ra, rb, rc, islit, lit); |
| break; |
| case 0x46: |
| /* CMOVGE */ |
| gen_cmov(ctx, &gen_op_cmpgez, ra, rb, rc, islit, lit); |
| break; |
| case 0x48: |
| /* EQV */ |
| gen_arith3(ctx, &gen_op_eqv, ra, rb, rc, islit, lit); |
| break; |
| case 0x61: |
| /* AMASK */ |
| gen_arith2(ctx, &gen_amask, rb, rc, islit, lit); |
| break; |
| case 0x64: |
| /* CMOVLE */ |
| gen_cmov(ctx, &gen_op_cmplez, ra, rb, rc, islit, lit); |
| break; |
| case 0x66: |
| /* CMOVGT */ |
| gen_cmov(ctx, &gen_op_cmpgtz, ra, rb, rc, islit, lit); |
| break; |
| case 0x6C: |
| /* IMPLVER */ |
| gen_op_load_implver(); |
| gen_store_ir(ctx, rc, 0); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x12: |
| switch (fn7) { |
| case 0x02: |
| /* MSKBL */ |
| gen_arith3(ctx, &gen_op_mskbl, ra, rb, rc, islit, lit); |
| break; |
| case 0x06: |
| /* EXTBL */ |
| gen_arith3(ctx, &gen_op_extbl, ra, rb, rc, islit, lit); |
| break; |
| case 0x0B: |
| /* INSBL */ |
| gen_arith3(ctx, &gen_op_insbl, ra, rb, rc, islit, lit); |
| break; |
| case 0x12: |
| /* MSKWL */ |
| gen_arith3(ctx, &gen_op_mskwl, ra, rb, rc, islit, lit); |
| break; |
| case 0x16: |
| /* EXTWL */ |
| gen_arith3(ctx, &gen_op_extwl, ra, rb, rc, islit, lit); |
| break; |
| case 0x1B: |
| /* INSWL */ |
| gen_arith3(ctx, &gen_op_inswl, ra, rb, rc, islit, lit); |
| break; |
| case 0x22: |
| /* MSKLL */ |
| gen_arith3(ctx, &gen_op_mskll, ra, rb, rc, islit, lit); |
| break; |
| case 0x26: |
| /* EXTLL */ |
| gen_arith3(ctx, &gen_op_extll, ra, rb, rc, islit, lit); |
| break; |
| case 0x2B: |
| /* INSLL */ |
| gen_arith3(ctx, &gen_op_insll, ra, rb, rc, islit, lit); |
| break; |
| case 0x30: |
| /* ZAP */ |
| gen_arith3(ctx, &gen_op_zap, ra, rb, rc, islit, lit); |
| break; |
| case 0x31: |
| /* ZAPNOT */ |
| gen_arith3(ctx, &gen_op_zapnot, ra, rb, rc, islit, lit); |
| break; |
| case 0x32: |
| /* MSKQL */ |
| gen_arith3(ctx, &gen_op_mskql, ra, rb, rc, islit, lit); |
| break; |
| case 0x34: |
| /* SRL */ |
| gen_arith3(ctx, &gen_op_srl, ra, rb, rc, islit, lit); |
| break; |
| case 0x36: |
| /* EXTQL */ |
| gen_arith3(ctx, &gen_op_extql, ra, rb, rc, islit, lit); |
| break; |
| case 0x39: |
| /* SLL */ |
| gen_arith3(ctx, &gen_op_sll, ra, rb, rc, islit, lit); |
| break; |
| case 0x3B: |
| /* INSQL */ |
| gen_arith3(ctx, &gen_op_insql, ra, rb, rc, islit, lit); |
| break; |
| case 0x3C: |
| /* SRA */ |
| gen_arith3(ctx, &gen_op_sra, ra, rb, rc, islit, lit); |
| break; |
| case 0x52: |
| /* MSKWH */ |
| gen_arith3(ctx, &gen_op_mskwh, ra, rb, rc, islit, lit); |
| break; |
| case 0x57: |
| /* INSWH */ |
| gen_arith3(ctx, &gen_op_inswh, ra, rb, rc, islit, lit); |
| break; |
| case 0x5A: |
| /* EXTWH */ |
| gen_arith3(ctx, &gen_op_extwh, ra, rb, rc, islit, lit); |
| break; |
| case 0x62: |
| /* MSKLH */ |
| gen_arith3(ctx, &gen_op_msklh, ra, rb, rc, islit, lit); |
| break; |
| case 0x67: |
| /* INSLH */ |
| gen_arith3(ctx, &gen_op_inslh, ra, rb, rc, islit, lit); |
| break; |
| case 0x6A: |
| /* EXTLH */ |
| gen_arith3(ctx, &gen_op_extlh, ra, rb, rc, islit, lit); |
| break; |
| case 0x72: |
| /* MSKQH */ |
| gen_arith3(ctx, &gen_op_mskqh, ra, rb, rc, islit, lit); |
| break; |
| case 0x77: |
| /* INSQH */ |
| gen_arith3(ctx, &gen_op_insqh, ra, rb, rc, islit, lit); |
| break; |
| case 0x7A: |
| /* EXTQH */ |
| gen_arith3(ctx, &gen_op_extqh, ra, rb, rc, islit, lit); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x13: |
| switch (fn7) { |
| case 0x00: |
| /* MULL */ |
| gen_arith3(ctx, &gen_op_mull, ra, rb, rc, islit, lit); |
| break; |
| case 0x20: |
| /* MULQ */ |
| gen_arith3(ctx, &gen_op_mulq, ra, rb, rc, islit, lit); |
| break; |
| case 0x30: |
| /* UMULH */ |
| gen_arith3(ctx, &gen_op_umulh, ra, rb, rc, islit, lit); |
| break; |
| case 0x40: |
| /* MULL/V */ |
| gen_arith3(ctx, &gen_op_mullv, ra, rb, rc, islit, lit); |
| break; |
| case 0x60: |
| /* MULQ/V */ |
| gen_arith3(ctx, &gen_op_mulqv, ra, rb, rc, islit, lit); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x14: |
| switch (fpfn) { /* f11 & 0x3F */ |
| case 0x04: |
| /* ITOFS */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_itf(ctx, &gen_op_itofs, ra, rc); |
| break; |
| case 0x0A: |
| /* SQRTF */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_farith2(ctx, &gen_op_sqrtf, rb, rc); |
| break; |
| case 0x0B: |
| /* SQRTS */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_farith2(ctx, &gen_op_sqrts, rb, rc); |
| break; |
| case 0x14: |
| /* ITOFF */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| #if 0 // TODO |
| gen_itf(ctx, &gen_op_itoff, ra, rc); |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0x24: |
| /* ITOFT */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_itf(ctx, &gen_op_itoft, ra, rc); |
| break; |
| case 0x2A: |
| /* SQRTG */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_farith2(ctx, &gen_op_sqrtg, rb, rc); |
| break; |
| case 0x02B: |
| /* SQRTT */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_farith2(ctx, &gen_op_sqrtt, rb, rc); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x15: |
| /* VAX floating point */ |
| /* XXX: rounding mode and trap are ignored (!) */ |
| switch (fpfn) { /* f11 & 0x3F */ |
| case 0x00: |
| /* ADDF */ |
| gen_farith3(ctx, &gen_op_addf, ra, rb, rc); |
| break; |
| case 0x01: |
| /* SUBF */ |
| gen_farith3(ctx, &gen_op_subf, ra, rb, rc); |
| break; |
| case 0x02: |
| /* MULF */ |
| gen_farith3(ctx, &gen_op_mulf, ra, rb, rc); |
| break; |
| case 0x03: |
| /* DIVF */ |
| gen_farith3(ctx, &gen_op_divf, ra, rb, rc); |
| break; |
| case 0x1E: |
| /* CVTDG */ |
| #if 0 // TODO |
| gen_farith2(ctx, &gen_op_cvtdg, rb, rc); |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0x20: |
| /* ADDG */ |
| gen_farith3(ctx, &gen_op_addg, ra, rb, rc); |
| break; |
| case 0x21: |
| /* SUBG */ |
| gen_farith3(ctx, &gen_op_subg, ra, rb, rc); |
| break; |
| case 0x22: |
| /* MULG */ |
| gen_farith3(ctx, &gen_op_mulg, ra, rb, rc); |
| break; |
| case 0x23: |
| /* DIVG */ |
| gen_farith3(ctx, &gen_op_divg, ra, rb, rc); |
| break; |
| case 0x25: |
| /* CMPGEQ */ |
| gen_farith3(ctx, &gen_op_cmpgeq, ra, rb, rc); |
| break; |
| case 0x26: |
| /* CMPGLT */ |
| gen_farith3(ctx, &gen_op_cmpglt, ra, rb, rc); |
| break; |
| case 0x27: |
| /* CMPGLE */ |
| gen_farith3(ctx, &gen_op_cmpgle, ra, rb, rc); |
| break; |
| case 0x2C: |
| /* CVTGF */ |
| gen_farith2(ctx, &gen_op_cvtgf, rb, rc); |
| break; |
| case 0x2D: |
| /* CVTGD */ |
| #if 0 // TODO |
| gen_farith2(ctx, &gen_op_cvtgd, rb, rc); |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0x2F: |
| /* CVTGQ */ |
| gen_farith2(ctx, &gen_op_cvtgq, rb, rc); |
| break; |
| case 0x3C: |
| /* CVTQF */ |
| gen_farith2(ctx, &gen_op_cvtqf, rb, rc); |
| break; |
| case 0x3E: |
| /* CVTQG */ |
| gen_farith2(ctx, &gen_op_cvtqg, rb, rc); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x16: |
| /* IEEE floating-point */ |
| /* XXX: rounding mode and traps are ignored (!) */ |
| switch (fpfn) { /* f11 & 0x3F */ |
| case 0x00: |
| /* ADDS */ |
| gen_farith3(ctx, &gen_op_adds, ra, rb, rc); |
| break; |
| case 0x01: |
| /* SUBS */ |
| gen_farith3(ctx, &gen_op_subs, ra, rb, rc); |
| break; |
| case 0x02: |
| /* MULS */ |
| gen_farith3(ctx, &gen_op_muls, ra, rb, rc); |
| break; |
| case 0x03: |
| /* DIVS */ |
| gen_farith3(ctx, &gen_op_divs, ra, rb, rc); |
| break; |
| case 0x20: |
| /* ADDT */ |
| gen_farith3(ctx, &gen_op_addt, ra, rb, rc); |
| break; |
| case 0x21: |
| /* SUBT */ |
| gen_farith3(ctx, &gen_op_subt, ra, rb, rc); |
| break; |
| case 0x22: |
| /* MULT */ |
| gen_farith3(ctx, &gen_op_mult, ra, rb, rc); |
| break; |
| case 0x23: |
| /* DIVT */ |
| gen_farith3(ctx, &gen_op_divt, ra, rb, rc); |
| break; |
| case 0x24: |
| /* CMPTUN */ |
| gen_farith3(ctx, &gen_op_cmptun, ra, rb, rc); |
| break; |
| case 0x25: |
| /* CMPTEQ */ |
| gen_farith3(ctx, &gen_op_cmpteq, ra, rb, rc); |
| break; |
| case 0x26: |
| /* CMPTLT */ |
| gen_farith3(ctx, &gen_op_cmptlt, ra, rb, rc); |
| break; |
| case 0x27: |
| /* CMPTLE */ |
| gen_farith3(ctx, &gen_op_cmptle, ra, rb, rc); |
| break; |
| case 0x2C: |
| /* XXX: incorrect */ |
| if (fn11 == 0x2AC) { |
| /* CVTST */ |
| gen_farith2(ctx, &gen_op_cvtst, rb, rc); |
| } else { |
| /* CVTTS */ |
| gen_farith2(ctx, &gen_op_cvtts, rb, rc); |
| } |
| break; |
| case 0x2F: |
| /* CVTTQ */ |
| gen_farith2(ctx, &gen_op_cvttq, rb, rc); |
| break; |
| case 0x3C: |
| /* CVTQS */ |
| gen_farith2(ctx, &gen_op_cvtqs, rb, rc); |
| break; |
| case 0x3E: |
| /* CVTQT */ |
| gen_farith2(ctx, &gen_op_cvtqt, rb, rc); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x17: |
| switch (fn11) { |
| case 0x010: |
| /* CVTLQ */ |
| gen_farith2(ctx, &gen_op_cvtlq, rb, rc); |
| break; |
| case 0x020: |
| /* CPYS */ |
| if (ra == rb) { |
| if (ra == 31 && rc == 31) { |
| /* FNOP */ |
| gen_op_nop(); |
| } else { |
| /* FMOV */ |
| gen_load_fir(ctx, rb, 0); |
| gen_store_fir(ctx, rc, 0); |
| } |
| } else { |
| gen_farith3(ctx, &gen_op_cpys, ra, rb, rc); |
| } |
| break; |
| case 0x021: |
| /* CPYSN */ |
| gen_farith2(ctx, &gen_op_cpysn, rb, rc); |
| break; |
| case 0x022: |
| /* CPYSE */ |
| gen_farith2(ctx, &gen_op_cpyse, rb, rc); |
| break; |
| case 0x024: |
| /* MT_FPCR */ |
| gen_load_fir(ctx, ra, 0); |
| gen_op_store_fpcr(); |
| break; |
| case 0x025: |
| /* MF_FPCR */ |
| gen_op_load_fpcr(); |
| gen_store_fir(ctx, ra, 0); |
| break; |
| case 0x02A: |
| /* FCMOVEQ */ |
| gen_fcmov(ctx, &gen_op_cmpfeq, ra, rb, rc); |
| break; |
| case 0x02B: |
| /* FCMOVNE */ |
| gen_fcmov(ctx, &gen_op_cmpfne, ra, rb, rc); |
| break; |
| case 0x02C: |
| /* FCMOVLT */ |
| gen_fcmov(ctx, &gen_op_cmpflt, ra, rb, rc); |
| break; |
| case 0x02D: |
| /* FCMOVGE */ |
| gen_fcmov(ctx, &gen_op_cmpfge, ra, rb, rc); |
| break; |
| case 0x02E: |
| /* FCMOVLE */ |
| gen_fcmov(ctx, &gen_op_cmpfle, ra, rb, rc); |
| break; |
| case 0x02F: |
| /* FCMOVGT */ |
| gen_fcmov(ctx, &gen_op_cmpfgt, ra, rb, rc); |
| break; |
| case 0x030: |
| /* CVTQL */ |
| gen_farith2(ctx, &gen_op_cvtql, rb, rc); |
| break; |
| case 0x130: |
| /* CVTQL/V */ |
| gen_farith2(ctx, &gen_op_cvtqlv, rb, rc); |
| break; |
| case 0x530: |
| /* CVTQL/SV */ |
| gen_farith2(ctx, &gen_op_cvtqlsv, rb, rc); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x18: |
| switch ((uint16_t)disp16) { |
| case 0x0000: |
| /* TRAPB */ |
| /* No-op. Just exit from the current tb */ |
| ret = 2; |
| break; |
| case 0x0400: |
| /* EXCB */ |
| /* No-op. Just exit from the current tb */ |
| ret = 2; |
| break; |
| case 0x4000: |
| /* MB */ |
| /* No-op */ |
| break; |
| case 0x4400: |
| /* WMB */ |
| /* No-op */ |
| break; |
| case 0x8000: |
| /* FETCH */ |
| /* No-op */ |
| break; |
| case 0xA000: |
| /* FETCH_M */ |
| /* No-op */ |
| break; |
| case 0xC000: |
| /* RPCC */ |
| gen_op_load_pcc(); |
| gen_store_ir(ctx, ra, 0); |
| break; |
| case 0xE000: |
| /* RC */ |
| gen_op_load_irf(); |
| gen_store_ir(ctx, ra, 0); |
| gen_op_clear_irf(); |
| break; |
| case 0xE800: |
| /* ECB */ |
| /* XXX: TODO: evict tb cache at address rb */ |
| #if 0 |
| ret = 2; |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0xF000: |
| /* RS */ |
| gen_op_load_irf(); |
| gen_store_ir(ctx, ra, 0); |
| gen_op_set_irf(); |
| break; |
| case 0xF800: |
| /* WH64 */ |
| /* No-op */ |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x19: |
| /* HW_MFPR (PALcode) */ |
| #if defined (CONFIG_USER_ONLY) |
| goto invalid_opc; |
| #else |
| if (!ctx->pal_mode) |
| goto invalid_opc; |
| gen_op_mfpr(insn & 0xFF); |
| gen_store_ir(ctx, ra, 0); |
| break; |
| #endif |
| case 0x1A: |
| gen_load_ir(ctx, rb, 0); |
| if (ra != 31) { |
| gen_set_uT1(ctx, ctx->pc); |
| gen_store_ir(ctx, ra, 1); |
| } |
| gen_op_branch(); |
| /* Those four jumps only differ by the branch prediction hint */ |
| switch (fn2) { |
| case 0x0: |
| /* JMP */ |
| break; |
| case 0x1: |
| /* JSR */ |
| break; |
| case 0x2: |
| /* RET */ |
| break; |
| case 0x3: |
| /* JSR_COROUTINE */ |
| break; |
| } |
| ret = 1; |
| break; |
| case 0x1B: |
| /* HW_LD (PALcode) */ |
| #if defined (CONFIG_USER_ONLY) |
| goto invalid_opc; |
| #else |
| if (!ctx->pal_mode) |
| goto invalid_opc; |
| gen_load_ir(ctx, rb, 0); |
| gen_set_sT1(ctx, disp12); |
| gen_op_addq(); |
| switch ((insn >> 12) & 0xF) { |
| case 0x0: |
| /* Longword physical access */ |
| gen_op_ldl_raw(); |
| break; |
| case 0x1: |
| /* Quadword physical access */ |
| gen_op_ldq_raw(); |
| break; |
| case 0x2: |
| /* Longword physical access with lock */ |
| gen_op_ldl_l_raw(); |
| break; |
| case 0x3: |
| /* Quadword physical access with lock */ |
| gen_op_ldq_l_raw(); |
| break; |
| case 0x4: |
| /* Longword virtual PTE fetch */ |
| gen_op_ldl_kernel(); |
| break; |
| case 0x5: |
| /* Quadword virtual PTE fetch */ |
| gen_op_ldq_kernel(); |
| break; |
| case 0x6: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0x7: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0x8: |
| /* Longword virtual access */ |
| gen_op_ld_phys_to_virt(); |
| gen_op_ldl_raw(); |
| break; |
| case 0x9: |
| /* Quadword virtual access */ |
| gen_op_ld_phys_to_virt(); |
| gen_op_ldq_raw(); |
| break; |
| case 0xA: |
| /* Longword virtual access with protection check */ |
| gen_ldl(ctx); |
| break; |
| case 0xB: |
| /* Quadword virtual access with protection check */ |
| gen_ldq(ctx); |
| break; |
| case 0xC: |
| /* Longword virtual access with altenate access mode */ |
| gen_op_set_alt_mode(); |
| gen_op_ld_phys_to_virt(); |
| gen_op_ldl_raw(); |
| gen_op_restore_mode(); |
| break; |
| case 0xD: |
| /* Quadword virtual access with altenate access mode */ |
| gen_op_set_alt_mode(); |
| gen_op_ld_phys_to_virt(); |
| gen_op_ldq_raw(); |
| gen_op_restore_mode(); |
| break; |
| case 0xE: |
| /* Longword virtual access with alternate access mode and |
| * protection checks |
| */ |
| gen_op_set_alt_mode(); |
| gen_op_ldl_data(); |
| gen_op_restore_mode(); |
| break; |
| case 0xF: |
| /* Quadword virtual access with alternate access mode and |
| * protection checks |
| */ |
| gen_op_set_alt_mode(); |
| gen_op_ldq_data(); |
| gen_op_restore_mode(); |
| break; |
| } |
| gen_store_ir(ctx, ra, 1); |
| break; |
| #endif |
| case 0x1C: |
| switch (fn7) { |
| case 0x00: |
| /* SEXTB */ |
| if (!(ctx->amask & AMASK_BWX)) |
| goto invalid_opc; |
| gen_arith2(ctx, &gen_op_sextb, rb, rc, islit, lit); |
| break; |
| case 0x01: |
| /* SEXTW */ |
| if (!(ctx->amask & AMASK_BWX)) |
| goto invalid_opc; |
| gen_arith2(ctx, &gen_op_sextw, rb, rc, islit, lit); |
| break; |
| case 0x30: |
| /* CTPOP */ |
| if (!(ctx->amask & AMASK_CIX)) |
| goto invalid_opc; |
| gen_arith2(ctx, &gen_op_ctpop, rb, rc, 0, 0); |
| break; |
| case 0x31: |
| /* PERR */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x32: |
| /* CTLZ */ |
| if (!(ctx->amask & AMASK_CIX)) |
| goto invalid_opc; |
| gen_arith2(ctx, &gen_op_ctlz, rb, rc, 0, 0); |
| break; |
| case 0x33: |
| /* CTTZ */ |
| if (!(ctx->amask & AMASK_CIX)) |
| goto invalid_opc; |
| gen_arith2(ctx, &gen_op_cttz, rb, rc, 0, 0); |
| break; |
| case 0x34: |
| /* UNPKBW */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x35: |
| /* UNPKWL */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x36: |
| /* PKWB */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x37: |
| /* PKLB */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x38: |
| /* MINSB8 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x39: |
| /* MINSW4 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x3A: |
| /* MINUB8 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x3B: |
| /* MINUW4 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x3C: |
| /* MAXUB8 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x3D: |
| /* MAXUW4 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x3E: |
| /* MAXSB8 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x3F: |
| /* MAXSW4 */ |
| if (!(ctx->amask & AMASK_MVI)) |
| goto invalid_opc; |
| /* XXX: TODO */ |
| goto invalid_opc; |
| break; |
| case 0x70: |
| /* FTOIT */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_fti(ctx, &gen_op_ftoit, ra, rb); |
| break; |
| case 0x78: |
| /* FTOIS */ |
| if (!(ctx->amask & AMASK_FIX)) |
| goto invalid_opc; |
| gen_fti(ctx, &gen_op_ftois, ra, rb); |
| break; |
| default: |
| goto invalid_opc; |
| } |
| break; |
| case 0x1D: |
| /* HW_MTPR (PALcode) */ |
| #if defined (CONFIG_USER_ONLY) |
| goto invalid_opc; |
| #else |
| if (!ctx->pal_mode) |
| goto invalid_opc; |
| gen_load_ir(ctx, ra, 0); |
| gen_op_mtpr(insn & 0xFF); |
| ret = 2; |
| break; |
| #endif |
| case 0x1E: |
| /* HW_REI (PALcode) */ |
| #if defined (CONFIG_USER_ONLY) |
| goto invalid_opc; |
| #else |
| if (!ctx->pal_mode) |
| goto invalid_opc; |
| if (rb == 31) { |
| /* "Old" alpha */ |
| gen_op_hw_rei(); |
| } else { |
| gen_load_ir(ctx, rb, 0); |
| gen_set_uT1(ctx, (((int64_t)insn << 51) >> 51)); |
| gen_op_addq(); |
| gen_op_hw_ret(); |
| } |
| ret = 2; |
| break; |
| #endif |
| case 0x1F: |
| /* HW_ST (PALcode) */ |
| #if defined (CONFIG_USER_ONLY) |
| goto invalid_opc; |
| #else |
| if (!ctx->pal_mode) |
| goto invalid_opc; |
| gen_load_ir(ctx, rb, 0); |
| gen_set_sT1(ctx, disp12); |
| gen_op_addq(); |
| gen_load_ir(ctx, ra, 1); |
| switch ((insn >> 12) & 0xF) { |
| case 0x0: |
| /* Longword physical access */ |
| gen_op_stl_raw(); |
| break; |
| case 0x1: |
| /* Quadword physical access */ |
| gen_op_stq_raw(); |
| break; |
| case 0x2: |
| /* Longword physical access with lock */ |
| gen_op_stl_c_raw(); |
| break; |
| case 0x3: |
| /* Quadword physical access with lock */ |
| gen_op_stq_c_raw(); |
| break; |
| case 0x4: |
| /* Longword virtual access */ |
| gen_op_st_phys_to_virt(); |
| gen_op_stl_raw(); |
| break; |
| case 0x5: |
| /* Quadword virtual access */ |
| gen_op_st_phys_to_virt(); |
| gen_op_stq_raw(); |
| break; |
| case 0x6: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0x7: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0x8: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0x9: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0xA: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0xB: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0xC: |
| /* Longword virtual access with alternate access mode */ |
| gen_op_set_alt_mode(); |
| gen_op_st_phys_to_virt(); |
| gen_op_ldl_raw(); |
| gen_op_restore_mode(); |
| break; |
| case 0xD: |
| /* Quadword virtual access with alternate access mode */ |
| gen_op_set_alt_mode(); |
| gen_op_st_phys_to_virt(); |
| gen_op_ldq_raw(); |
| gen_op_restore_mode(); |
| break; |
| case 0xE: |
| /* Invalid */ |
| goto invalid_opc; |
| case 0xF: |
| /* Invalid */ |
| goto invalid_opc; |
| } |
| ret = 2; |
| break; |
| #endif |
| case 0x20: |
| /* LDF */ |
| #if 0 // TODO |
| gen_load_fmem(ctx, &gen_ldf, ra, rb, disp16); |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0x21: |
| /* LDG */ |
| #if 0 // TODO |
| gen_load_fmem(ctx, &gen_ldg, ra, rb, disp16); |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0x22: |
| /* LDS */ |
| gen_load_fmem(ctx, &gen_lds, ra, rb, disp16); |
| break; |
| case 0x23: |
| /* LDT */ |
| gen_load_fmem(ctx, &gen_ldt, ra, rb, disp16); |
| break; |
| case 0x24: |
| /* STF */ |
| #if 0 // TODO |
| gen_store_fmem(ctx, &gen_stf, ra, rb, disp16); |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0x25: |
| /* STG */ |
| #if 0 // TODO |
| gen_store_fmem(ctx, &gen_stg, ra, rb, disp16); |
| #else |
| goto invalid_opc; |
| #endif |
| break; |
| case 0x26: |
| /* STS */ |
| gen_store_fmem(ctx, &gen_sts, ra, rb, disp16); |
| break; |
| case 0x27: |
| /* STT */ |
| gen_store_fmem(ctx, &gen_stt, ra, rb, disp16); |
| break; |
| case 0x28: |
| /* LDL */ |
| gen_load_mem(ctx, &gen_ldl, ra, rb, disp16, 0); |
| break; |
| case 0x29: |
| /* LDQ */ |
| gen_load_mem(ctx, &gen_ldq, ra, rb, disp16, 0); |
| break; |
| case 0x2A: |
| /* LDL_L */ |
| gen_load_mem(ctx, &gen_ldl_l, ra, rb, disp16, 0); |
| break; |
| case 0x2B: |
| /* LDQ_L */ |
| gen_load_mem(ctx, &gen_ldq_l, ra, rb, disp16, 0); |
| break; |
| case 0x2C: |
| /* STL */ |
| gen_store_mem(ctx, &gen_stl, ra, rb, disp16, 0); |
| break; |
| case 0x2D: |
| /* STQ */ |
| gen_store_mem(ctx, &gen_stq, ra, rb, disp16, 0); |
| break; |
| case 0x2E: |
| /* STL_C */ |
| gen_store_mem(ctx, &gen_stl_c, ra, rb, disp16, 0); |
| break; |
| case 0x2F: |
| /* STQ_C */ |
| gen_store_mem(ctx, &gen_stq_c, ra, rb, disp16, 0); |
| break; |
| case 0x30: |
| /* BR */ |
| gen_set_uT0(ctx, ctx->pc); |
| gen_store_ir(ctx, ra, 0); |
| if (disp21 != 0) { |
| gen_set_sT1(ctx, disp21 << 2); |
| gen_op_addq(); |
| } |
| gen_op_branch(); |
| ret = 1; |
| break; |
| case 0x31: |
| /* FBEQ */ |
| gen_fbcond(ctx, &gen_op_cmpfeq, ra, disp16); |
| ret = 1; |
| break; |
| case 0x32: |
| /* FBLT */ |
| gen_fbcond(ctx, &gen_op_cmpflt, ra, disp16); |
| ret = 1; |
| break; |
| case 0x33: |
| /* FBLE */ |
| gen_fbcond(ctx, &gen_op_cmpfle, ra, disp16); |
| ret = 1; |
| break; |
| case 0x34: |
| /* BSR */ |
| gen_set_uT0(ctx, ctx->pc); |
| gen_store_ir(ctx, ra, 0); |
| if (disp21 != 0) { |
| gen_set_sT1(ctx, disp21 << 2); |
| gen_op_addq(); |
| } |
| gen_op_branch(); |
| ret = 1; |
| break; |
| case 0x35: |
| /* FBNE */ |
| gen_fbcond(ctx, &gen_op_cmpfne, ra, disp16); |
| ret = 1; |
| break; |
| case 0x36: |
| /* FBGE */ |
| gen_fbcond(ctx, &gen_op_cmpfge, ra, disp16); |
| ret = 1; |
| break; |
| case 0x37: |
| /* FBGT */ |
| gen_fbcond(ctx, &gen_op_cmpfgt, ra, disp16); |
| ret = 1; |
| break; |
| case 0x38: |
| /* BLBC */ |
| gen_bcond(ctx, &gen_op_cmplbc, ra, disp16); |
| ret = 1; |
| break; |
| case 0x39: |
| /* BEQ */ |
| gen_bcond(ctx, &gen_op_cmpeqz, ra, disp16); |
| ret = 1; |
| break; |
| case 0x3A: |
| /* BLT */ |
| gen_bcond(ctx, &gen_op_cmpltz, ra, disp16); |
| ret = 1; |
| break; |
| case 0x3B: |
| /* BLE */ |
| gen_bcond(ctx, &gen_op_cmplez, ra, disp16); |
| ret = 1; |
| break; |
| case 0x3C: |
| /* BLBS */ |
| gen_bcond(ctx, &gen_op_cmplbs, ra, disp16); |
| ret = 1; |
| break; |
| case 0x3D: |
| /* BNE */ |
| gen_bcond(ctx, &gen_op_cmpnez, ra, disp16); |
| ret = 1; |
| break; |
| case 0x3E: |
| /* BGE */ |
| gen_bcond(ctx, &gen_op_cmpgez, ra, disp16); |
| ret = 1; |
| break; |
| case 0x3F: |
| /* BGT */ |
| gen_bcond(ctx, &gen_op_cmpgtz, ra, disp16); |
| ret = 1; |
| break; |
| invalid_opc: |
| gen_invalid(ctx); |
| ret = 3; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb, |
| int search_pc) |
| { |
| #if defined ALPHA_DEBUG_DISAS |
| static int insn_count; |
| #endif |
| DisasContext ctx, *ctxp = &ctx; |
| target_ulong pc_start; |
| uint32_t insn; |
| uint16_t *gen_opc_end; |
| int j, lj = -1; |
| int ret; |
| |
| pc_start = tb->pc; |
| gen_opc_ptr = gen_opc_buf; |
| gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| gen_opparam_ptr = gen_opparam_buf; |
| nb_gen_labels = 0; |
| ctx.pc = pc_start; |
| ctx.amask = env->amask; |
| #if defined (CONFIG_USER_ONLY) |
| ctx.mem_idx = 0; |
| #else |
| ctx.mem_idx = ((env->ps >> 3) & 3); |
| ctx.pal_mode = env->ipr[IPR_EXC_ADDR] & 1; |
| #endif |
| for (ret = 0; ret == 0;) { |
| if (env->nb_breakpoints > 0) { |
| for(j = 0; j < env->nb_breakpoints; j++) { |
| if (env->breakpoints[j] == ctx.pc) { |
| gen_excp(&ctx, EXCP_DEBUG, 0); |
| break; |
| } |
| } |
| } |
| if (search_pc) { |
| j = gen_opc_ptr - gen_opc_buf; |
| if (lj < j) { |
| lj++; |
| while (lj < j) |
| gen_opc_instr_start[lj++] = 0; |
| gen_opc_pc[lj] = ctx.pc; |
| gen_opc_instr_start[lj] = 1; |
| } |
| } |
| #if defined ALPHA_DEBUG_DISAS |
| insn_count++; |
| if (logfile != NULL) { |
| fprintf(logfile, "pc " TARGET_FMT_lx " mem_idx %d\n", |
| ctx.pc, ctx.mem_idx); |
| } |
| #endif |
| insn = ldl_code(ctx.pc); |
| #if defined ALPHA_DEBUG_DISAS |
| insn_count++; |
| if (logfile != NULL) { |
| fprintf(logfile, "opcode %08x %d\n", insn, insn_count); |
| } |
| #endif |
| ctx.pc += 4; |
| ret = translate_one(ctxp, insn); |
| if (ret != 0) |
| break; |
| /* if we reach a page boundary or are single stepping, stop |
| * generation |
| */ |
| if (((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) || |
| (env->singlestep_enabled)) { |
| break; |
| } |
| #if defined (DO_SINGLE_STEP) |
| break; |
| #endif |
| } |
| if (ret != 1 && ret != 3) { |
| gen_update_pc(&ctx); |
| } |
| gen_op_reset_T0(); |
| #if defined (DO_TB_FLUSH) |
| gen_op_tb_flush(); |
| #endif |
| /* Generate the return instruction */ |
| gen_op_exit_tb(); |
| *gen_opc_ptr = INDEX_op_end; |
| if (search_pc) { |
| j = gen_opc_ptr - gen_opc_buf; |
| lj++; |
| while (lj <= j) |
| gen_opc_instr_start[lj++] = 0; |
| tb->size = 0; |
| } else { |
| tb->size = ctx.pc - pc_start; |
| } |
| #if defined ALPHA_DEBUG_DISAS |
| if (loglevel & CPU_LOG_TB_CPU) { |
| cpu_dump_state(env, logfile, fprintf, 0); |
| } |
| if (loglevel & CPU_LOG_TB_IN_ASM) { |
| fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start)); |
| target_disas(logfile, pc_start, ctx.pc - pc_start, 1); |
| fprintf(logfile, "\n"); |
| } |
| if (loglevel & CPU_LOG_TB_OP) { |
| fprintf(logfile, "OP:\n"); |
| dump_ops(gen_opc_buf, gen_opparam_buf); |
| fprintf(logfile, "\n"); |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) |
| { |
| return gen_intermediate_code_internal(env, tb, 0); |
| } |
| |
| int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) |
| { |
| return gen_intermediate_code_internal(env, tb, 1); |
| } |
| |
| CPUAlphaState * cpu_alpha_init (void) |
| { |
| CPUAlphaState *env; |
| uint64_t hwpcb; |
| |
| env = qemu_mallocz(sizeof(CPUAlphaState)); |
| if (!env) |
| return NULL; |
| cpu_exec_init(env); |
| tlb_flush(env, 1); |
| /* XXX: should not be hardcoded */ |
| env->implver = IMPLVER_2106x; |
| env->ps = 0x1F00; |
| #if defined (CONFIG_USER_ONLY) |
| env->ps |= 1 << 3; |
| #endif |
| pal_init(env); |
| /* Initialize IPR */ |
| hwpcb = env->ipr[IPR_PCBB]; |
| env->ipr[IPR_ASN] = 0; |
| env->ipr[IPR_ASTEN] = 0; |
| env->ipr[IPR_ASTSR] = 0; |
| env->ipr[IPR_DATFX] = 0; |
| /* XXX: fix this */ |
| // env->ipr[IPR_ESP] = ldq_raw(hwpcb + 8); |
| // env->ipr[IPR_KSP] = ldq_raw(hwpcb + 0); |
| // env->ipr[IPR_SSP] = ldq_raw(hwpcb + 16); |
| // env->ipr[IPR_USP] = ldq_raw(hwpcb + 24); |
| env->ipr[IPR_FEN] = 0; |
| env->ipr[IPR_IPL] = 31; |
| env->ipr[IPR_MCES] = 0; |
| env->ipr[IPR_PERFMON] = 0; /* Implementation specific */ |
| // env->ipr[IPR_PTBR] = ldq_raw(hwpcb + 32); |
| env->ipr[IPR_SISR] = 0; |
| env->ipr[IPR_VIRBND] = -1ULL; |
| |
| return env; |
| } |
