Fix typo

[qemu] / target-mips / translate.c

diff --git a/target-mips/translate.c b/target-mips/translate.c
index e96fe60..6f5bea4 100644 (file)
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -501,13 +501,13 @@ static const char *fregnames[] =
       "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", };
 
 #ifdef MIPS_DEBUG_DISAS
-#define MIPS_DEBUG(fmt, args...)                         \
+#define MIPS_DEBUG(fmt, ...)                         \
         qemu_log_mask(CPU_LOG_TB_IN_ASM,                \
                        TARGET_FMT_lx ": %08x " fmt "\n", \
-                       ctx->pc, ctx->opcode , ##args)
+                       ctx->pc, ctx->opcode , ## __VA_ARGS__)
 #define LOG_DISAS(...) qemu_log_mask(CPU_LOG_TB_IN_ASM, ## __VA_ARGS__)
 #else
-#define MIPS_DEBUG(fmt, args...) do { } while(0)
+#define MIPS_DEBUG(fmt, ...) do { } while(0)
 #define LOG_DISAS(...) do { } while (0)
 #endif
 
@@ -1590,7 +1590,7 @@ static void gen_arith (CPUState *env, DisasContext *ctx, uint32_t opc,
             tcg_temp_free(t2);
             tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
             tcg_temp_free(t1);
-            /* operands of same sign, result different sign */
+           /* operands of different sign, first operand and result different sign */
             generate_exception(ctx, EXCP_OVERFLOW);
             gen_set_label(l1);
             gen_store_gpr(t0, rd);
@@ -1604,6 +1604,7 @@ static void gen_arith (CPUState *env, DisasContext *ctx, uint32_t opc,
             tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
         } else if (rs == 0 && rt != 0) {
             tcg_gen_neg_tl(cpu_gpr[rd], cpu_gpr[rt]);
+            tcg_gen_ext32s_tl(cpu_gpr[rd], cpu_gpr[rd]);
         } else if (rs != 0 && rt == 0) {
             tcg_gen_mov_tl(cpu_gpr[rd], cpu_gpr[rs]);
         } else {
@@ -1665,7 +1666,7 @@ static void gen_arith (CPUState *env, DisasContext *ctx, uint32_t opc,
             tcg_temp_free(t2);
             tcg_gen_brcondi_tl(TCG_COND_GE, t1, 0, l1);
             tcg_temp_free(t1);
-            /* operands of same sign, result different sign */
+           /* operands of different sign, first operand and result different sign */
             generate_exception(ctx, EXCP_OVERFLOW);
             gen_set_label(l1);
             gen_store_gpr(t0, rd);