diff options
author | Jia Liu <proljc@gmail.com> | 2012-07-20 15:50:45 +0800 |
---|---|---|
committer | Blue Swirl <blauwirbel@gmail.com> | 2012-07-27 21:13:00 +0000 |
commit | bbe418f25d070745fd350ab71c3bfca58ea5e62c (patch) | |
tree | ce8eb37b163bba6e52a905bdb0d3e2b14753df81 | |
parent | 5b5695073b1d8eda14f8253a1750193d98a42ae8 (diff) | |
download | hqemu-bbe418f25d070745fd350ab71c3bfca58ea5e62c.zip hqemu-bbe418f25d070745fd350ab71c3bfca58ea5e62c.tar.gz |
target-or32: Add instruction translation
Add OpenRISC instruction tanslation routines.
Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r-- | target-openrisc/translate.c | 1734 |
1 files changed, 1734 insertions, 0 deletions
diff --git a/target-openrisc/translate.c b/target-openrisc/translate.c index a2b9b4f..a17455d 100644 --- a/target-openrisc/translate.c +++ b/target-openrisc/translate.c @@ -25,6 +25,11 @@ #include "qemu-common.h" #include "qemu-log.h" #include "config.h" +#include "bitops.h" + +#include "helper.h" +#define GEN_HELPER 1 +#include "helper.h" #define OPENRISC_DISAS @@ -34,14 +39,1743 @@ # define LOG_DIS(...) do { } while (0) #endif +typedef struct DisasContext { + TranslationBlock *tb; + target_ulong pc, ppc, npc; + uint32_t tb_flags, synced_flags, flags; + uint32_t is_jmp; + uint32_t mem_idx; + int singlestep_enabled; + uint32_t delayed_branch; +} DisasContext; + +static TCGv_ptr cpu_env; +static TCGv cpu_sr; +static TCGv cpu_R[32]; +static TCGv cpu_pc; +static TCGv jmp_pc; /* l.jr/l.jalr temp pc */ +static TCGv cpu_npc; +static TCGv cpu_ppc; +static TCGv_i32 env_btaken; /* bf/bnf , F flag taken */ +static TCGv_i32 fpcsr; +static TCGv machi, maclo; +static TCGv fpmaddhi, fpmaddlo; +static TCGv_i32 env_flags; +#include "gen-icount.h" + void openrisc_translate_init(void) { + static const char * const regnames[] = { + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", + }; + int i; + + cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); + cpu_sr = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, sr), "sr"); + env_flags = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUOpenRISCState, flags), + "flags"); + cpu_pc = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, pc), "pc"); + cpu_npc = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, npc), "npc"); + cpu_ppc = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, ppc), "ppc"); + jmp_pc = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc"); + env_btaken = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUOpenRISCState, btaken), + "btaken"); + fpcsr = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUOpenRISCState, fpcsr), + "fpcsr"); + machi = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, machi), + "machi"); + maclo = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, maclo), + "maclo"); + fpmaddhi = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, fpmaddhi), + "fpmaddhi"); + fpmaddlo = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, fpmaddlo), + "fpmaddlo"); + for (i = 0; i < 32; i++) { + cpu_R[i] = tcg_global_mem_new(TCG_AREG0, + offsetof(CPUOpenRISCState, gpr[i]), + regnames[i]); + } +#define GEN_HELPER 2 +#include "helper.h" +} + +/* Writeback SR_F transaltion-space to execution-space. */ +static inline void wb_SR_F(void) +{ + int label; + + label = gen_new_label(); + tcg_gen_andi_tl(cpu_sr, cpu_sr, ~SR_F); + tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, label); + tcg_gen_ori_tl(cpu_sr, cpu_sr, SR_F); + gen_set_label(label); +} + +static inline int zero_extend(unsigned int val, int width) +{ + return val & ((1 << width) - 1); +} + +static inline int sign_extend(unsigned int val, int width) +{ + int sval; + + /* LSL */ + val <<= TARGET_LONG_BITS - width; + sval = val; + /* ASR. */ + sval >>= TARGET_LONG_BITS - width; + return sval; +} + +static inline void gen_sync_flags(DisasContext *dc) +{ + /* Sync the tb dependent flag between translate and runtime. */ + if (dc->tb_flags != dc->synced_flags) { + tcg_gen_movi_tl(env_flags, dc->tb_flags); + dc->synced_flags = dc->tb_flags; + } +} + +static void gen_exception(DisasContext *dc, unsigned int excp) +{ + TCGv_i32 tmp = tcg_const_i32(excp); + gen_helper_exception(cpu_env, tmp); + tcg_temp_free_i32(tmp); +} + +static void gen_illegal_exception(DisasContext *dc) +{ + tcg_gen_movi_tl(cpu_pc, dc->pc); + gen_exception(dc, EXCP_ILLEGAL); + dc->is_jmp = DISAS_UPDATE; +} + +/* not used yet, open it when we need or64. */ +/*#ifdef TARGET_OPENRISC64 +static void check_ob64s(DisasContext *dc) +{ + if (!(dc->flags & CPUCFGR_OB64S)) { + gen_illegal_exception(dc); + } +} + +static void check_of64s(DisasContext *dc) +{ + if (!(dc->flags & CPUCFGR_OF64S)) { + gen_illegal_exception(dc); + } +} + +static void check_ov64s(DisasContext *dc) +{ + if (!(dc->flags & CPUCFGR_OV64S)) { + gen_illegal_exception(dc); + } +} +#endif*/ + +static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) +{ + TranslationBlock *tb; + tb = dc->tb; + if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) && + likely(!dc->singlestep_enabled)) { + tcg_gen_movi_tl(cpu_pc, dest); + tcg_gen_goto_tb(n); + tcg_gen_exit_tb((tcg_target_long)tb + n); + } else { + tcg_gen_movi_tl(cpu_pc, dest); + if (dc->singlestep_enabled) { + gen_exception(dc, EXCP_DEBUG); + } + tcg_gen_exit_tb(0); + } +} + +static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0) +{ + target_ulong tmp_pc; + int lab = gen_new_label(); + TCGv sr_f = tcg_temp_new(); + /* N26, 26bits imm */ + tmp_pc = sign_extend((imm<<2), 26) + dc->pc; + tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); + + if (op0 == 0x00) { /* l.j */ + tcg_gen_movi_tl(jmp_pc, tmp_pc); + } else if (op0 == 0x01) { /* l.jal */ + tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); + tcg_gen_movi_tl(jmp_pc, tmp_pc); + } else if (op0 == 0x03) { /* l.bnf */ + tcg_gen_movi_tl(jmp_pc, dc->pc+8); + tcg_gen_brcondi_i32(TCG_COND_EQ, sr_f, SR_F, lab); + tcg_gen_movi_tl(jmp_pc, tmp_pc); + gen_set_label(lab); + } else if (op0 == 0x04) { /* l.bf */ + tcg_gen_movi_tl(jmp_pc, dc->pc+8); + tcg_gen_brcondi_i32(TCG_COND_NE, sr_f, SR_F, lab); + tcg_gen_movi_tl(jmp_pc, tmp_pc); + gen_set_label(lab); + } else if (op0 == 0x11) { /* l.jr */ + tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); + } else if (op0 == 0x12) { /* l.jalr */ + tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); + tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); + } else { + gen_illegal_exception(dc); + } + + tcg_temp_free(sr_f); + dc->delayed_branch = 2; + dc->tb_flags |= D_FLAG; + gen_sync_flags(dc); +} + +static void dec_calc(DisasContext *dc, uint32_t insn) +{ + uint32_t op0, op1, op2; + uint32_t ra, rb, rd; + op0 = extract32(insn, 0, 4); + op1 = extract32(insn, 8, 2); + op2 = extract32(insn, 6, 2); + ra = extract32(insn, 16, 5); + rb = extract32(insn, 11, 5); + rd = extract32(insn, 21, 5); + + switch (op0) { + case 0x0000: + switch (op1) { + case 0x00: /* l.add */ + LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb); + { + int lab = gen_new_label(); + TCGv_i64 ta = tcg_temp_new_i64(); + TCGv_i64 tb = tcg_temp_new_i64(); + TCGv_i64 td = tcg_temp_local_new_i64(); + TCGv_i32 res = tcg_temp_local_new_i32(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + tcg_gen_extu_i32_i64(ta, cpu_R[ra]); + tcg_gen_extu_i32_i64(tb, cpu_R[rb]); + tcg_gen_add_i64(td, ta, tb); + tcg_gen_trunc_i64_i32(res, td); + tcg_gen_shri_i64(td, td, 31); + tcg_gen_andi_i64(td, td, 0x3); + /* Jump to lab when no overflow. */ + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); + tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab); + tcg_gen_mov_i32(cpu_R[rd], res); + tcg_temp_free_i64(ta); + tcg_temp_free_i64(tb); + tcg_temp_free_i64(td); + tcg_temp_free_i32(res); + tcg_temp_free_i32(sr_ove); + } + break; + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0001: /* l.addc */ + switch (op1) { + case 0x00: + LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb); + { + int lab = gen_new_label(); + TCGv_i64 ta = tcg_temp_new_i64(); + TCGv_i64 tb = tcg_temp_new_i64(); + TCGv_i64 tcy = tcg_temp_local_new_i64(); + TCGv_i64 td = tcg_temp_local_new_i64(); + TCGv_i32 res = tcg_temp_local_new_i32(); + TCGv_i32 sr_cy = tcg_temp_local_new_i32(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + tcg_gen_extu_i32_i64(ta, cpu_R[ra]); + tcg_gen_extu_i32_i64(tb, cpu_R[rb]); + tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY); + tcg_gen_extu_i32_i64(tcy, sr_cy); + tcg_gen_shri_i64(tcy, tcy, 10); + tcg_gen_add_i64(td, ta, tb); + tcg_gen_add_i64(td, td, tcy); + tcg_gen_trunc_i64_i32(res, td); + tcg_gen_shri_i64(td, td, 32); + tcg_gen_andi_i64(td, td, 0x3); + /* Jump to lab when no overflow. */ + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); + tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab); + tcg_gen_mov_i32(cpu_R[rd], res); + tcg_temp_free_i64(ta); + tcg_temp_free_i64(tb); + tcg_temp_free_i64(tcy); + tcg_temp_free_i64(td); + tcg_temp_free_i32(res); + tcg_temp_free_i32(sr_cy); + tcg_temp_free_i32(sr_ove); + } + break; + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0002: /* l.sub */ + switch (op1) { + case 0x00: + LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb); + { + int lab = gen_new_label(); + TCGv_i64 ta = tcg_temp_new_i64(); + TCGv_i64 tb = tcg_temp_new_i64(); + TCGv_i64 td = tcg_temp_local_new_i64(); + TCGv_i32 res = tcg_temp_local_new_i32(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + + tcg_gen_extu_i32_i64(ta, cpu_R[ra]); + tcg_gen_extu_i32_i64(tb, cpu_R[rb]); + tcg_gen_sub_i64(td, ta, tb); + tcg_gen_trunc_i64_i32(res, td); + tcg_gen_shri_i64(td, td, 31); + tcg_gen_andi_i64(td, td, 0x3); + /* Jump to lab when no overflow. */ + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); + tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab); + tcg_gen_mov_i32(cpu_R[rd], res); + tcg_temp_free_i64(ta); + tcg_temp_free_i64(tb); + tcg_temp_free_i64(td); + tcg_temp_free_i32(res); + tcg_temp_free_i32(sr_ove); + } + break; + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0003: /* l.and */ + switch (op1) { + case 0x00: + LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb); + tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + break; + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0004: /* l.or */ + switch (op1) { + case 0x00: + LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb); + tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + break; + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0005: + switch (op1) { + case 0x00: /* l.xor */ + LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb); + tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + break; + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0006: + switch (op1) { + case 0x03: /* l.mul */ + LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb); + if (ra != 0 && rb != 0) { + gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + } else { + tcg_gen_movi_tl(cpu_R[rd], 0x0); + } + break; + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0009: + switch (op1) { + case 0x03: /* l.div */ + LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb); + { + int lab0 = gen_new_label(); + int lab1 = gen_new_label(); + int lab2 = gen_new_label(); + int lab3 = gen_new_label(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + if (rb == 0) { + tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab0); + } else { + tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[rb], + 0x00000000, lab1); + tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[ra], + 0x80000000, lab2); + tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb], + 0xffffffff, lab2); + gen_set_label(lab1); + tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab3); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab2); + tcg_gen_div_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + gen_set_label(lab3); + } + tcg_temp_free_i32(sr_ove); + } + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x000a: + switch (op1) { + case 0x03: /* l.divu */ + LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb); + { + int lab0 = gen_new_label(); + int lab1 = gen_new_label(); + int lab2 = gen_new_label(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + if (rb == 0) { + tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab0); + } else { + tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb], + 0x00000000, lab1); + tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab2); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab1); + tcg_gen_divu_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + gen_set_label(lab2); + } + tcg_temp_free_i32(sr_ove); + } + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x000b: + switch (op1) { + case 0x03: /* l.mulu */ + LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb); + if (rb != 0 && ra != 0) { + TCGv_i64 result = tcg_temp_local_new_i64(); + TCGv_i64 tra = tcg_temp_local_new_i64(); + TCGv_i64 trb = tcg_temp_local_new_i64(); + TCGv_i64 high = tcg_temp_new_i64(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + int lab = gen_new_label(); + /* Calculate the each result. */ + tcg_gen_extu_i32_i64(tra, cpu_R[ra]); + tcg_gen_extu_i32_i64(trb, cpu_R[rb]); + tcg_gen_mul_i64(result, tra, trb); + tcg_temp_free_i64(tra); + tcg_temp_free_i64(trb); + tcg_gen_shri_i64(high, result, TARGET_LONG_BITS); + /* Overflow or not. */ + tcg_gen_brcondi_i64(TCG_COND_EQ, high, 0x00000000, lab); + tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab); + tcg_temp_free_i64(high); + tcg_gen_trunc_i64_tl(cpu_R[rd], result); + tcg_temp_free_i64(result); + tcg_temp_free_i32(sr_ove); + } else { + tcg_gen_movi_tl(cpu_R[rd], 0); + } + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x000e: + switch (op1) { + case 0x00: /* l.cmov */ + LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb); + { + int lab = gen_new_label(); + TCGv res = tcg_temp_local_new(); + TCGv sr_f = tcg_temp_new(); + tcg_gen_andi_tl(sr_f, cpu_sr, SR_F); + tcg_gen_mov_tl(res, cpu_R[rb]); + tcg_gen_brcondi_tl(TCG_COND_NE, sr_f, SR_F, lab); + tcg_gen_mov_tl(res, cpu_R[ra]); + gen_set_label(lab); + tcg_gen_mov_tl(cpu_R[rd], res); + tcg_temp_free(sr_f); + tcg_temp_free(res); + } + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x000f: + switch (op1) { + case 0x00: /* l.ff1 */ + LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb); + gen_helper_ff1(cpu_R[rd], cpu_R[ra]); + break; + case 0x01: /* l.fl1 */ + LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb); + gen_helper_fl1(cpu_R[rd], cpu_R[ra]); + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x0008: + switch (op1) { + case 0x00: + switch (op2) { + case 0x00: /* l.sll */ + LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb); + tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + break; + case 0x01: /* l.srl */ + LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb); + tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + break; + case 0x02: /* l.sra */ + LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb); + tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + break; + case 0x03: /* l.ror */ + LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb); + tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x000c: + switch (op1) { + case 0x00: + switch (op2) { + case 0x00: /* l.exths */ + LOG_DIS("l.exths r%d, r%d\n", rd, ra); + tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]); + break; + case 0x01: /* l.extbs */ + LOG_DIS("l.extbs r%d, r%d\n", rd, ra); + tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]); + break; + case 0x02: /* l.exthz */ + LOG_DIS("l.exthz r%d, r%d\n", rd, ra); + tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]); + break; + case 0x03: /* l.extbz */ + LOG_DIS("l.extbz r%d, r%d\n", rd, ra); + tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]); + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x000d: + switch (op1) { + case 0x00: + switch (op2) { + case 0x00: /* l.extws */ + LOG_DIS("l.extws r%d, r%d\n", rd, ra); + tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]); + break; + case 0x01: /* l.extwz */ + LOG_DIS("l.extwz r%d, r%d\n", rd, ra); + tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]); + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + default: + gen_illegal_exception(dc); + break; + } +} + +static void dec_misc(DisasContext *dc, uint32_t insn) +{ + uint32_t op0, op1; + uint32_t ra, rb, rd; +#ifdef OPENRISC_DISAS + uint32_t L6, K5; +#endif + uint32_t I16, I5, I11, N26, tmp; + op0 = extract32(insn, 26, 6); + op1 = extract32(insn, 24, 2); + ra = extract32(insn, 16, 5); + rb = extract32(insn, 11, 5); + rd = extract32(insn, 21, 5); +#ifdef OPENRISC_DISAS + L6 = extract32(insn, 5, 6); + K5 = extract32(insn, 0, 5); +#endif + I16 = extract32(insn, 0, 16); + I5 = extract32(insn, 21, 5); + I11 = extract32(insn, 0, 11); + N26 = extract32(insn, 0, 26); + tmp = (I5<<11) + I11; + + switch (op0) { + case 0x00: /* l.j */ + LOG_DIS("l.j %d\n", N26); + gen_jump(dc, N26, 0, op0); + break; + + case 0x01: /* l.jal */ + LOG_DIS("l.jal %d\n", N26); + gen_jump(dc, N26, 0, op0); + break; + + case 0x03: /* l.bnf */ + LOG_DIS("l.bnf %d\n", N26); + gen_jump(dc, N26, 0, op0); + break; + + case 0x04: /* l.bf */ + LOG_DIS("l.bf %d\n", N26); + gen_jump(dc, N26, 0, op0); + break; + + case 0x05: + switch (op1) { + case 0x01: /* l.nop */ + LOG_DIS("l.nop %d\n", I16); + break; + + default: + gen_illegal_exception(dc); + break; + } + break; + + case 0x11: /* l.jr */ + LOG_DIS("l.jr r%d\n", rb); + gen_jump(dc, 0, rb, op0); + break; + + case 0x12: /* l.jalr */ + LOG_DIS("l.jalr r%d\n", rb); + gen_jump(dc, 0, rb, op0); + break; + + case 0x13: /* l.maci */ + LOG_DIS("l.maci %d, r%d, %d\n", I5, ra, I11); + { + TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i32 dst = tcg_temp_new_i32(); + TCGv ttmp = tcg_const_tl(tmp); + tcg_gen_mul_tl(dst, cpu_R[ra], ttmp); + tcg_gen_ext_i32_i64(t1, dst); + tcg_gen_concat_i32_i64(t2, maclo, machi); + tcg_gen_add_i64(t2, t2, t1); + tcg_gen_trunc_i64_i32(maclo, t2); + tcg_gen_shri_i64(t2, t2, 32); + tcg_gen_trunc_i64_i32(machi, t2); + tcg_temp_free_i32(dst); + tcg_temp_free(ttmp); + tcg_temp_free_i64(t1); + tcg_temp_free_i64(t2); + } + break; + + case 0x09: /* l.rfe */ + LOG_DIS("l.rfe\n"); + { +#if defined(CONFIG_USER_ONLY) + return; +#else + if (dc->mem_idx == MMU_USER_IDX) { + gen_illegal_exception(dc); + return; + } + gen_helper_rfe(cpu_env); + dc->is_jmp = DISAS_UPDATE; +#endif + } + break; + + case 0x1c: /* l.cust1 */ + LOG_DIS("l.cust1\n"); + break; + + case 0x1d: /* l.cust2 */ + LOG_DIS("l.cust2\n"); + break; + + case 0x1e: /* l.cust3 */ + LOG_DIS("l.cust3\n"); + break; + + case 0x1f: /* l.cust4 */ + LOG_DIS("l.cust4\n"); + break; + + case 0x3c: /* l.cust5 */ + LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5); + break; + + case 0x3d: /* l.cust6 */ + LOG_DIS("l.cust6\n"); + break; + + case 0x3e: /* l.cust7 */ + LOG_DIS("l.cust7\n"); + break; + + case 0x3f: /* l.cust8 */ + LOG_DIS("l.cust8\n"); + break; + +/* not used yet, open it when we need or64. */ +/*#ifdef TARGET_OPENRISC64 + case 0x20: l.ld + LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16); + { + check_ob64s(dc); + TCGv_i64 t0 = tcg_temp_new_i64(); + tcg_gen_addi_i64(t0, cpu_R[ra], sign_extend(I16, 16)); + tcg_gen_qemu_ld64(cpu_R[rd], t0, dc->mem_idx); + tcg_temp_free_i64(t0); + } + break; +#endif*/ + + case 0x21: /* l.lwz */ + LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); + tcg_gen_qemu_ld32u(cpu_R[rd], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x22: /* l.lws */ + LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); + tcg_gen_qemu_ld32s(cpu_R[rd], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x23: /* l.lbz */ + LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); + tcg_gen_qemu_ld8u(cpu_R[rd], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x24: /* l.lbs */ + LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); + tcg_gen_qemu_ld8s(cpu_R[rd], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x25: /* l.lhz */ + LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); + tcg_gen_qemu_ld16u(cpu_R[rd], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x26: /* l.lhs */ + LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16)); + tcg_gen_qemu_ld16s(cpu_R[rd], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x27: /* l.addi */ + LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16); + { + int lab = gen_new_label(); + TCGv_i64 ta = tcg_temp_new_i64(); + TCGv_i64 td = tcg_temp_local_new_i64(); + TCGv_i32 res = tcg_temp_local_new_i32(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + tcg_gen_extu_i32_i64(ta, cpu_R[ra]); + tcg_gen_addi_i64(td, ta, sign_extend(I16, 16)); + tcg_gen_trunc_i64_i32(res, td); + tcg_gen_shri_i64(td, td, 32); + tcg_gen_andi_i64(td, td, 0x3); + /* Jump to lab when no overflow. */ + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); + tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab); + tcg_gen_mov_i32(cpu_R[rd], res); + tcg_temp_free_i64(ta); + tcg_temp_free_i64(td); + tcg_temp_free_i32(res); + tcg_temp_free_i32(sr_ove); + } + break; + + case 0x28: /* l.addic */ + LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16); + { + int lab = gen_new_label(); + TCGv_i64 ta = tcg_temp_new_i64(); + TCGv_i64 td = tcg_temp_local_new_i64(); + TCGv_i64 tcy = tcg_temp_local_new_i64(); + TCGv_i32 res = tcg_temp_local_new_i32(); + TCGv_i32 sr_cy = tcg_temp_local_new_i32(); + TCGv_i32 sr_ove = tcg_temp_local_new_i32(); + tcg_gen_extu_i32_i64(ta, cpu_R[ra]); + tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY); + tcg_gen_shri_i32(sr_cy, sr_cy, 10); + tcg_gen_extu_i32_i64(tcy, sr_cy); + tcg_gen_addi_i64(td, ta, sign_extend(I16, 16)); + tcg_gen_add_i64(td, td, tcy); + tcg_gen_trunc_i64_i32(res, td); + tcg_gen_shri_i64(td, td, 32); + tcg_gen_andi_i64(td, td, 0x3); + /* Jump to lab when no overflow. */ + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab); + tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab); + tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY)); + tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE); + tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab); + gen_exception(dc, EXCP_RANGE); + gen_set_label(lab); + tcg_gen_mov_i32(cpu_R[rd], res); + tcg_temp_free_i64(ta); + tcg_temp_free_i64(td); + tcg_temp_free_i64(tcy); + tcg_temp_free_i32(res); + tcg_temp_free_i32(sr_cy); + tcg_temp_free_i32(sr_ove); + } + break; + + case 0x29: /* l.andi */ + LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, I16); + tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16)); + break; + + case 0x2a: /* l.ori */ + LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, I16); + tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16)); + break; + + case 0x2b: /* l.xori */ + LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16); + tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], sign_extend(I16, 16)); + break; + + case 0x2c: /* l.muli */ + LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16); + if (ra != 0 && I16 != 0) { + TCGv_i32 im = tcg_const_i32(I16); + gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], im); + tcg_temp_free_i32(im); + } else { + tcg_gen_movi_tl(cpu_R[rd], 0x0); + } + break; + + case 0x2d: /* l.mfspr */ + LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, I16); + break; + + case 0x30: /* l.mtspr */ + LOG_DIS("l.mtspr %d, r%d, r%d, %d\n", I5, ra, rb, I11); + break; + +/* not used yet, open it when we need or64. */ +/*#ifdef TARGET_OPENRISC64 + case 0x34: l.sd + LOG_DIS("l.sd %d, r%d, r%d, %d\n", I5, ra, rb, I11); + { + check_ob64s(dc); + TCGv_i64 t0 = tcg_temp_new_i64(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); + tcg_gen_qemu_st64(cpu_R[rb], t0, dc->mem_idx); + tcg_temp_free_i64(t0); + } + break; +#endif*/ + + case 0x35: /* l.sw */ + LOG_DIS("l.sw %d, r%d, r%d, %d\n", I5, ra, rb, I11); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); + tcg_gen_qemu_st32(cpu_R[rb], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x36: /* l.sb */ + LOG_DIS("l.sb %d, r%d, r%d, %d\n", I5, ra, rb, I11); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); + tcg_gen_qemu_st8(cpu_R[rb], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + case 0x37: /* l.sh */ + LOG_DIS("l.sh %d, r%d, r%d, %d\n", I5, ra, rb, I11); + { + TCGv t0 = tcg_temp_new(); + tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16)); + tcg_gen_qemu_st16(cpu_R[rb], t0, dc->mem_idx); + tcg_temp_free(t0); + } + break; + + default: + gen_illegal_exception(dc); + break; + } +} + +static void dec_mac(DisasContext *dc, uint32_t insn) +{ + uint32_t op0; + uint32_t ra, rb; + op0 = extract32(insn, 0, 4); + ra = extract32(insn, 16, 5); + rb = extract32(insn, 11, 5); + + switch (op0) { + case 0x0001: /* l.mac */ + LOG_DIS("l.mac r%d, r%d\n", ra, rb); + { + TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t2 = tcg_temp_new_i64(); + tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]); + tcg_gen_ext_i32_i64(t1, t0); + tcg_gen_concat_i32_i64(t2, maclo, machi); + tcg_gen_add_i64(t2, t2, t1); + tcg_gen_trunc_i64_i32(maclo, t2); + tcg_gen_shri_i64(t2, t2, 32); + tcg_gen_trunc_i64_i32(machi, t2); + tcg_temp_free_i32(t0); + tcg_temp_free_i64(t1); + tcg_temp_free_i64(t2); + } + break; + + case 0x0002: /* l.msb */ + LOG_DIS("l.msb r%d, r%d\n", ra, rb); + { + TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t2 = tcg_temp_new_i64(); + tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]); + tcg_gen_ext_i32_i64(t1, t0); + tcg_gen_concat_i32_i64(t2, maclo, machi); + tcg_gen_sub_i64(t2, t2, t1); + tcg_gen_trunc_i64_i32(maclo, t2); + tcg_gen_shri_i64(t2, t2, 32); + tcg_gen_trunc_i64_i32(machi, t2); + tcg_temp_free_i32(t0); + tcg_temp_free_i64(t1); + tcg_temp_free_i64(t2); + } + break; + + default: + gen_illegal_exception(dc); + break; + } +} + +static void dec_logic(DisasContext *dc, uint32_t insn) +{ + uint32_t op0; + uint32_t rd, ra, L6; + op0 = extract32(insn, 6, 2); + rd = extract32(insn, 21, 5); + ra = extract32(insn, 16, 5); + L6 = extract32(insn, 0, 6); + + switch (op0) { + case 0x00: /* l.slli */ + LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6); + tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); + break; + + case 0x01: /* l.srli */ + LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6); + tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); + break; + + case 0x02: /* l.srai */ + LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6); + tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break; + + case 0x03: /* l.rori */ + LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6); + tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); + break; + + default: + gen_illegal_exception(dc); + break; + } +} + +static void dec_M(DisasContext *dc, uint32_t insn) +{ + uint32_t op0; + uint32_t rd; + uint32_t K16; + op0 = extract32(insn, 16, 1); + rd = extract32(insn, 21, 5); + K16 = extract32(insn, 0, 16); + + switch (op0) { + case 0x0: /* l.movhi */ + LOG_DIS("l.movhi r%d, %d\n", rd, K16); + tcg_gen_movi_tl(cpu_R[rd], (K16 << 16)); + break; + + case 0x1: /* l.macrc */ + LOG_DIS("l.macrc r%d\n", rd); + tcg_gen_mov_tl(cpu_R[rd], maclo); + tcg_gen_movi_tl(maclo, 0x0); + tcg_gen_movi_tl(machi, 0x0); + break; + + default: + gen_illegal_exception(dc); + break; + } +} + +static void dec_comp(DisasContext *dc, uint32_t insn) +{ + uint32_t op0; + uint32_t ra, rb; + + op0 = extract32(insn, 21, 5); + ra = extract32(insn, 16, 5); + rb = extract32(insn, 11, 5); + + tcg_gen_movi_i32(env_btaken, 0x0); + /* unsigned integers */ + tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]); + tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]); + + switch (op0) { + case 0x0: /* l.sfeq */ + LOG_DIS("l.sfeq r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0x1: /* l.sfne */ + LOG_DIS("l.sfne r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_NE, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0x2: /* l.sfgtu */ + LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0x3: /* l.sfgeu */ + LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0x4: /* l.sfltu */ + LOG_DIS("l.sfltu r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0x5: /* l.sfleu */ + LOG_DIS("l.sfleu r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0xa: /* l.sfgts */ + LOG_DIS("l.sfgts r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_GT, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0xb: /* l.sfges */ + LOG_DIS("l.sfges r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_GE, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0xc: /* l.sflts */ + LOG_DIS("l.sflts r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_LT, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + case 0xd: /* l.sfles */ + LOG_DIS("l.sfles r%d, r%d\n", ra, rb); + tcg_gen_setcond_tl(TCG_COND_LE, env_btaken, cpu_R[ra], cpu_R[rb]); + break; + + default: + gen_illegal_exception(dc); + break; + } + wb_SR_F(); +} + +static void dec_compi(DisasContext *dc, uint32_t insn) +{ + uint32_t op0; + uint32_t ra, I16; + + op0 = extract32(insn, 21, 5); + ra = extract32(insn, 16, 5); + I16 = extract32(insn, 0, 16); + + tcg_gen_movi_i32(env_btaken, 0x0); + I16 = sign_extend(I16, 16); + + switch (op0) { + case 0x0: /* l.sfeqi */ + LOG_DIS("l.sfeqi r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], I16); + break; + + case 0x1: /* l.sfnei */ + LOG_DIS("l.sfnei r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_NE, env_btaken, cpu_R[ra], I16); + break; + + case 0x2: /* l.sfgtui */ + LOG_DIS("l.sfgtui r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], I16); + break; + + case 0x3: /* l.sfgeui */ + LOG_DIS("l.sfgeui r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], I16); + break; + + case 0x4: /* l.sfltui */ + LOG_DIS("l.sfltui r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], I16); + break; + + case 0x5: /* l.sfleui */ + LOG_DIS("l.sfleui r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], I16); + break; + + case 0xa: /* l.sfgtsi */ + LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_GT, env_btaken, cpu_R[ra], I16); + break; + + case 0xb: /* l.sfgesi */ + LOG_DIS("l.sfgesi r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_GE, env_btaken, cpu_R[ra], I16); + break; + + case 0xc: /* l.sfltsi */ + LOG_DIS("l.sfltsi r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_LT, env_btaken, cpu_R[ra], I16); + break; + + case 0xd: /* l.sflesi */ + LOG_DIS("l.sflesi r%d, %d\n", ra, I16); + tcg_gen_setcondi_tl(TCG_COND_LE, env_btaken, cpu_R[ra], I16); + break; + + default: + gen_illegal_exception(dc); + break; + } + wb_SR_F(); +} + +static void dec_sys(DisasContext *dc, uint32_t insn) +{ + uint32_t op0; +#ifdef OPENRISC_DISAS + uint32_t K16; +#endif + op0 = extract32(insn, 16, 8); +#ifdef OPENRISC_DISAS + K16 = extract32(insn, 0, 16); +#endif + + switch (op0) { + case 0x000: /* l.sys */ + LOG_DIS("l.sys %d\n", K16); + tcg_gen_movi_tl(cpu_pc, dc->pc); + gen_exception(dc, EXCP_SYSCALL); + dc->is_jmp = DISAS_UPDATE; + break; + + case 0x100: /* l.trap */ + LOG_DIS("l.trap %d\n", K16); +#if defined(CONFIG_USER_ONLY) + return; +#else + if (dc->mem_idx == MMU_USER_IDX) { + gen_illegal_exception(dc); + return; + } + tcg_gen_movi_tl(cpu_pc, dc->pc); + gen_exception(dc, EXCP_TRAP); +#endif + break; + + case 0x300: /* l.csync */ + LOG_DIS("l.csync\n"); +#if defined(CONFIG_USER_ONLY) + return; +#else + if (dc->mem_idx == MMU_USER_IDX) { + gen_illegal_exception(dc); + return; + } +#endif + break; + + case 0x200: /* l.msync */ + LOG_DIS("l.msync\n"); +#if defined(CONFIG_USER_ONLY) + return; +#else + if (dc->mem_idx == MMU_USER_IDX) { + gen_illegal_exception(dc); + return; + } +#endif + break; + + case 0x270: /* l.psync */ + LOG_DIS("l.psync\n"); +#if defined(CONFIG_USER_ONLY) + return; +#else + if (dc->mem_idx == MMU_USER_IDX) { + gen_illegal_exception(dc); + return; + } +#endif + break; + + default: + gen_illegal_exception(dc); + break; + } +} + +static void dec_float(DisasContext *dc, uint32_t insn) +{ + uint32_t op0; + uint32_t ra, rb, rd; + op0 = extract32(insn, 0, 8); + ra = extract32(insn, 16, 5); + rb = extract32(insn, 11, 5); + rd = extract32(insn, 21, 5); + + switch (op0) { + case 0x00: /* lf.add.s */ + LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb); + gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x01: /* lf.sub.s */ + LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb); + gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + + case 0x02: /* lf.mul.s */ + LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb); + if (ra != 0 && rb != 0) { + gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + } else { + tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF); + tcg_gen_movi_i32(cpu_R[rd], 0x0); + } + break; + + case 0x03: /* lf.div.s */ + LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb); + gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x04: /* lf.itof.s */ + LOG_DIS("lf.itof r%d, r%d\n", rd, ra); + gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]); + break; + + case 0x05: /* lf.ftoi.s */ + LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); + gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]); + break; + + case 0x06: /* lf.rem.s */ + LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb); + gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x07: /* lf.madd.s */ + LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb); + gen_helper_float_muladd_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x08: /* lf.sfeq.s */ + LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb); + gen_helper_float_eq_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x09: /* lf.sfne.s */ + LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb); + gen_helper_float_ne_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x0a: /* lf.sfgt.s */ + LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb); + gen_helper_float_gt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x0b: /* lf.sfge.s */ + LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb); + gen_helper_float_ge_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x0c: /* lf.sflt.s */ + LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb); + gen_helper_float_lt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x0d: /* lf.sfle.s */ + LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb); + gen_helper_float_le_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + +/* not used yet, open it when we need or64. */ +/*#ifdef TARGET_OPENRISC64 + case 0x10: lf.add.d + LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb); + check_of64s(dc); + gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x11: lf.sub.d + LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb); + check_of64s(dc); + gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x12: lf.mul.d + LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb); + check_of64s(dc); + if (ra != 0 && rb != 0) { + gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + } else { + tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF); + tcg_gen_movi_i64(cpu_R[rd], 0x0); + } + break; + + case 0x13: lf.div.d + LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb); + check_of64s(dc); + gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x14: lf.itof.d + LOG_DIS("lf.itof r%d, r%d\n", rd, ra); + check_of64s(dc); + gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]); + break; + + case 0x15: lf.ftoi.d + LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); + check_of64s(dc); + gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]); + break; + + case 0x16: lf.rem.d + LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb); + check_of64s(dc); + gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x17: lf.madd.d + LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb); + check_of64s(dc); + gen_helper_float_muladd_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x18: lf.sfeq.d + LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb); + check_of64s(dc); + gen_helper_float_eq_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x1a: lf.sfgt.d + LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb); + check_of64s(dc); + gen_helper_float_gt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x1b: lf.sfge.d + LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb); + check_of64s(dc); + gen_helper_float_ge_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x19: lf.sfne.d + LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb); + check_of64s(dc); + gen_helper_float_ne_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x1c: lf.sflt.d + LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb); + check_of64s(dc); + gen_helper_float_lt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; + + case 0x1d: lf.sfle.d + LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb); + check_of64s(dc); + gen_helper_float_le_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]); + break; +#endif*/ + + default: + gen_illegal_exception(dc); + break; + } + wb_SR_F(); +} + +static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) +{ + uint32_t op0; + uint32_t insn; + insn = cpu_ldl_code(&cpu->env, dc->pc); + op0 = extract32(insn, 26, 6); + + switch (op0) { + case 0x06: + dec_M(dc, insn); + break; + + case 0x08: + dec_sys(dc, insn); + break; + + case 0x2e: + dec_logic(dc, insn); + break; + + case 0x2f: + dec_compi(dc, insn); + break; + + case 0x31: + dec_mac(dc, insn); + break; + + case 0x32: + dec_float(dc, insn); + break; + + case 0x38: + dec_calc(dc, insn); + break; + + case 0x39: + dec_comp(dc, insn); + break; + + default: + dec_misc(dc, insn); + break; + } +} + +static void check_breakpoint(OpenRISCCPU *cpu, DisasContext *dc) +{ + CPUBreakpoint *bp; + + if (unlikely(!QTAILQ_EMPTY(&cpu->env.breakpoints))) { + QTAILQ_FOREACH(bp, &cpu->env.breakpoints, entry) { + if (bp->pc == dc->pc) { + tcg_gen_movi_tl(cpu_pc, dc->pc); + gen_exception(dc, EXCP_DEBUG); + dc->is_jmp = DISAS_UPDATE; + } + } + } } static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu, TranslationBlock *tb, int search_pc) { + struct DisasContext ctx, *dc = &ctx; + uint16_t *gen_opc_end; + uint32_t pc_start; + int j, k; + uint32_t next_page_start; + int num_insns; + int max_insns; + + qemu_log_try_set_file(stderr); + + pc_start = tb->pc; + dc->tb = tb; + + gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; + dc->is_jmp = DISAS_NEXT; + dc->ppc = pc_start; + dc->pc = pc_start; + dc->flags = cpu->env.cpucfgr; + dc->mem_idx = cpu_mmu_index(&cpu->env); + dc->synced_flags = dc->tb_flags = tb->flags; + dc->delayed_branch = !!(dc->tb_flags & D_FLAG); + dc->singlestep_enabled = cpu->env.singlestep_enabled; + if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { + qemu_log("-----------------------------------------\n"); + log_cpu_state(&cpu->env, 0); + } + + next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; + k = -1; + num_insns = 0; + max_insns = tb->cflags & CF_COUNT_MASK; + + if (max_insns == 0) { + max_insns = CF_COUNT_MASK; + } + + gen_icount_start(); + + do { + check_breakpoint(cpu, dc); + if (search_pc) { + j = gen_opc_ptr - gen_opc_buf; + if (k < j) { + k++; + while (k < j) { + gen_opc_instr_start[k++] = 0; + } + } + gen_opc_pc[k] = dc->pc; + gen_opc_instr_start[k] = 1; + gen_opc_icount[k] = num_insns; + } + + if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) { + tcg_gen_debug_insn_start(dc->pc); + } + + if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) { + gen_io_start(); + } + dc->ppc = dc->pc - 4; + dc->npc = dc->pc + 4; + tcg_gen_movi_tl(cpu_ppc, dc->ppc); + tcg_gen_movi_tl(cpu_npc, dc->npc); + disas_openrisc_insn(dc, cpu); + dc->pc = dc->npc; + num_insns++; + /* delay slot */ + if (dc->delayed_branch) { + dc->delayed_branch--; + if (!dc->delayed_branch) { + dc->tb_flags &= ~D_FLAG; + gen_sync_flags(dc); + tcg_gen_mov_tl(cpu_pc, jmp_pc); + tcg_gen_mov_tl(cpu_npc, jmp_pc); + tcg_gen_movi_tl(jmp_pc, 0); + tcg_gen_exit_tb(0); + dc->is_jmp = DISAS_JUMP; + break; + } + } + } while (!dc->is_jmp + && gen_opc_ptr < gen_opc_end + && !cpu->env.singlestep_enabled + && !singlestep + && (dc->pc < next_page_start) + && num_insns < max_insns); + + if (tb->cflags & CF_LAST_IO) { + gen_io_end(); + } + if (dc->is_jmp == DISAS_NEXT) { + dc->is_jmp = DISAS_UPDATE; + tcg_gen_movi_tl(cpu_pc, dc->pc); + } + if (unlikely(cpu->env.singlestep_enabled)) { + if (dc->is_jmp == DISAS_NEXT) { + tcg_gen_movi_tl(cpu_pc, dc->pc); + } + gen_exception(dc, EXCP_DEBUG); + } else { + switch (dc->is_jmp) { + case DISAS_NEXT: + gen_goto_tb(dc, 0, dc->pc); + break; + default: + case DISAS_JUMP: + break; + case DISAS_UPDATE: + /* indicate that the hash table must be used + to find the next TB */ + tcg_gen_exit_tb(0); + break; + case DISAS_TB_JUMP: + /* nothing more to generate */ + break; + } + } + + gen_icount_end(tb, num_insns); + *gen_opc_ptr = INDEX_op_end; + if (search_pc) { + j = gen_opc_ptr - gen_opc_buf; + k++; + while (k <= j) { + gen_opc_instr_start[k++] = 0; + } + } else { + tb->size = dc->pc - pc_start; + tb->icount = num_insns; + } + +#ifdef DEBUG_DISAS + if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { + qemu_log("\n"); + log_target_disas(pc_start, dc->pc - pc_start, 0); + qemu_log("\nisize=%d osize=%td\n", + dc->pc - pc_start, gen_opc_ptr - gen_opc_buf); + } +#endif } void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb) |