diff options
Diffstat (limited to 'target/hppa/translate.c')
| -rw-r--r-- | target/hppa/translate.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 1973777597..cfdb9ee761 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -1465,6 +1465,208 @@ static ExitStatus trans_nop(DisasContext *ctx, uint32_t insn, return NO_EXIT; } +static ExitStatus trans_break(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + nullify_over(ctx); + return nullify_end(ctx, gen_excp(ctx, EXCP_DEBUG)); +} + +static ExitStatus trans_sync(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + /* No point in nullifying the memory barrier. */ + tcg_gen_mb(TCG_BAR_SC | TCG_MO_ALL); + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static ExitStatus trans_mfia(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rt = extract32(insn, 0, 5); + TCGv tmp = dest_gpr(ctx, rt); + tcg_gen_movi_tl(tmp, ctx->iaoq_f); + save_gpr(ctx, rt, tmp); + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static ExitStatus trans_mfsp(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rt = extract32(insn, 0, 5); + TCGv tmp = dest_gpr(ctx, rt); + + /* ??? We don't implement space registers. */ + tcg_gen_movi_tl(tmp, 0); + save_gpr(ctx, rt, tmp); + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static ExitStatus trans_mfctl(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rt = extract32(insn, 0, 5); + unsigned ctl = extract32(insn, 21, 5); + TCGv tmp; + + switch (ctl) { + case 11: /* SAR */ +#ifdef TARGET_HPPA64 + if (extract32(insn, 14, 1) == 0) { + /* MFSAR without ,W masks low 5 bits. */ + tmp = dest_gpr(ctx, rt); + tcg_gen_andi_tl(tmp, cpu_sar, 31); + save_gpr(ctx, rt, tmp); + break; + } +#endif + save_gpr(ctx, rt, cpu_sar); + break; + case 16: /* Interval Timer */ + tmp = dest_gpr(ctx, rt); + tcg_gen_movi_tl(tmp, 0); /* FIXME */ + save_gpr(ctx, rt, tmp); + break; + case 26: + save_gpr(ctx, rt, cpu_cr26); + break; + case 27: + save_gpr(ctx, rt, cpu_cr27); + break; + default: + /* All other control registers are privileged. */ + return gen_illegal(ctx); + } + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static ExitStatus trans_mtctl(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rin = extract32(insn, 16, 5); + unsigned ctl = extract32(insn, 21, 5); + TCGv tmp; + + if (ctl == 11) { /* SAR */ + tmp = tcg_temp_new(); + tcg_gen_andi_tl(tmp, load_gpr(ctx, rin), TARGET_LONG_BITS - 1); + save_or_nullify(ctx, cpu_sar, tmp); + tcg_temp_free(tmp); + } else { + /* All other control registers are privileged or read-only. */ + return gen_illegal(ctx); + } + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static ExitStatus trans_mtsarcm(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rin = extract32(insn, 16, 5); + TCGv tmp = tcg_temp_new(); + + tcg_gen_not_tl(tmp, load_gpr(ctx, rin)); + tcg_gen_andi_tl(tmp, tmp, TARGET_LONG_BITS - 1); + save_or_nullify(ctx, cpu_sar, tmp); + tcg_temp_free(tmp); + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static ExitStatus trans_ldsid(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rt = extract32(insn, 0, 5); + TCGv dest = dest_gpr(ctx, rt); + + /* Since we don't implement space registers, this returns zero. */ + tcg_gen_movi_tl(dest, 0); + save_gpr(ctx, rt, dest); + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static const DisasInsn table_system[] = { + { 0x00000000u, 0xfc001fe0u, trans_break }, + /* We don't implement space register, so MTSP is a nop. */ + { 0x00001820u, 0xffe01fffu, trans_nop }, + { 0x00001840u, 0xfc00ffffu, trans_mtctl }, + { 0x016018c0u, 0xffe0ffffu, trans_mtsarcm }, + { 0x000014a0u, 0xffffffe0u, trans_mfia }, + { 0x000004a0u, 0xffff1fe0u, trans_mfsp }, + { 0x000008a0u, 0xfc1fffe0u, trans_mfctl }, + { 0x00000400u, 0xffffffffu, trans_sync }, + { 0x000010a0u, 0xfc1f3fe0u, trans_ldsid }, +}; + +static ExitStatus trans_base_idx_mod(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rb = extract32(insn, 21, 5); + unsigned rx = extract32(insn, 16, 5); + TCGv dest = dest_gpr(ctx, rb); + TCGv src1 = load_gpr(ctx, rb); + TCGv src2 = load_gpr(ctx, rx); + + /* The only thing we need to do is the base register modification. */ + tcg_gen_add_tl(dest, src1, src2); + save_gpr(ctx, rb, dest); + + cond_free(&ctx->null_cond); + return NO_EXIT; +} + +static ExitStatus trans_probe(DisasContext *ctx, uint32_t insn, + const DisasInsn *di) +{ + unsigned rt = extract32(insn, 0, 5); + unsigned rb = extract32(insn, 21, 5); + unsigned is_write = extract32(insn, 6, 1); + TCGv dest; + + nullify_over(ctx); + + /* ??? Do something with priv level operand. */ + dest = dest_gpr(ctx, rt); + if (is_write) { + gen_helper_probe_w(dest, load_gpr(ctx, rb)); + } else { + gen_helper_probe_r(dest, load_gpr(ctx, rb)); + } + save_gpr(ctx, rt, dest); + return nullify_end(ctx, NO_EXIT); +} + +static const DisasInsn table_mem_mgmt[] = { + { 0x04003280u, 0xfc003fffu, trans_nop }, /* fdc, disp */ + { 0x04001280u, 0xfc003fffu, trans_nop }, /* fdc, index */ + { 0x040012a0u, 0xfc003fffu, trans_base_idx_mod }, /* fdc, index, base mod */ + { 0x040012c0u, 0xfc003fffu, trans_nop }, /* fdce */ + { 0x040012e0u, 0xfc003fffu, trans_base_idx_mod }, /* fdce, base mod */ + { 0x04000280u, 0xfc001fffu, trans_nop }, /* fic 0a */ + { 0x040002a0u, 0xfc001fffu, trans_base_idx_mod }, /* fic 0a, base mod */ + { 0x040013c0u, 0xfc003fffu, trans_nop }, /* fic 4f */ + { 0x040013e0u, 0xfc003fffu, trans_base_idx_mod }, /* fic 4f, base mod */ + { 0x040002c0u, 0xfc001fffu, trans_nop }, /* fice */ + { 0x040002e0u, 0xfc001fffu, trans_base_idx_mod }, /* fice, base mod */ + { 0x04002700u, 0xfc003fffu, trans_nop }, /* pdc */ + { 0x04002720u, 0xfc003fffu, trans_base_idx_mod }, /* pdc, base mod */ + { 0x04001180u, 0xfc003fa0u, trans_probe }, /* probe */ + { 0x04003180u, 0xfc003fa0u, trans_probe }, /* probei */ +}; + static ExitStatus trans_add(DisasContext *ctx, uint32_t insn, const DisasInsn *di) { @@ -2711,6 +2913,10 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn) uint32_t opc = extract32(insn, 26, 6); switch (opc) { + case 0x00: /* system op */ + return translate_table(ctx, insn, table_system); + case 0x01: + return translate_table(ctx, insn, table_mem_mgmt); case 0x02: return translate_table(ctx, insn, table_arith_log); case 0x03: |