diff options
Diffstat (limited to 'target/mips')
| -rw-r--r-- | target/mips/translate.c | 66 |
1 files changed, 65 insertions, 1 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c index 8bc08f742e..98df88ee4d 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -16946,7 +16946,71 @@ static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) } break; case NM_P48I: - return 6; + { + insn = cpu_lduw_code(env, ctx->base.pc_next + 4); + target_long addr_off = extract32(ctx->opcode, 0, 16) | insn << 16; + switch (extract32(ctx->opcode, 16, 5)) { + case NM_LI48: + if (rt != 0) { + tcg_gen_movi_tl(cpu_gpr[rt], addr_off); + } + break; + case NM_ADDIU48: + if (rt != 0) { + tcg_gen_addi_tl(cpu_gpr[rt], cpu_gpr[rt], addr_off); + tcg_gen_ext32s_tl(cpu_gpr[rt], cpu_gpr[rt]); + } + break; + case NM_ADDIUGP48: + if (rt != 0) { + gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], addr_off); + } + break; + case NM_ADDIUPC48: + if (rt != 0) { + target_long addr = addr_add(ctx, ctx->base.pc_next + 6, + addr_off); + + tcg_gen_movi_tl(cpu_gpr[rt], addr); + } + break; + case NM_LWPC48: + if (rt != 0) { + TCGv t0; + t0 = tcg_temp_new(); + + target_long addr = addr_add(ctx, ctx->base.pc_next + 6, + addr_off); + + tcg_gen_movi_tl(t0, addr); + tcg_gen_qemu_ld_tl(cpu_gpr[rt], t0, ctx->mem_idx, MO_TESL); + tcg_temp_free(t0); + } + break; + case NM_SWPC48: + { + TCGv t0, t1; + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + + target_long addr = addr_add(ctx, ctx->base.pc_next + 6, + addr_off); + + tcg_gen_movi_tl(t0, addr); + gen_load_gpr(t1, rt); + + tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUL); + + tcg_temp_free(t0); + tcg_temp_free(t1); + } + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + return 6; + } case NM_P_U12: switch (extract32(ctx->opcode, 12, 4)) { case NM_ORI: |