diff --git a/qemu/target-sparc/unicorn.c b/qemu/target-sparc/unicorn.c
index 93bdffdc..b8ea29d8 100644
--- a/qemu/target-sparc/unicorn.c
+++ b/qemu/target-sparc/unicorn.c
@@ -63,12 +63,6 @@ int sparc_reg_read(struct uc_struct *uc, unsigned int regid, void *value)
             case UC_SPARC_REG_PC:
                 *(int32_t *)value = SPARC_CPU(uc, mycpu)->env.pc;
                 break;
-            case UC_SPARC_REG_SP:
-                *(int32_t *)value = SPARC_CPU(uc, mycpu)->env.regwptr[6];
-                break;
-            case UC_SPARC_REG_FP:
-                *(int32_t *)value = SPARC_CPU(uc, mycpu)->env.regwptr[22];
-                break;
         }
     }
 
@@ -100,12 +94,6 @@ int sparc_reg_write(struct uc_struct *uc, unsigned int regid, const void *value)
                 SPARC_CPU(uc, mycpu)->env.pc = *(uint32_t *)value;
                 SPARC_CPU(uc, mycpu)->env.npc = *(uint32_t *)value + 4;
                 break;
-            case UC_SPARC_REG_SP:
-                SPARC_CPU(uc, mycpu)->env.regwptr[6] = *(uint32_t *)value;
-                break;
-            case UC_SPARC_REG_FP:
-                SPARC_CPU(uc, mycpu)->env.regwptr[22] = *(uint32_t *)value;
-                break;
         }
     }
 
diff --git a/qemu/target-sparc/unicorn64.c b/qemu/target-sparc/unicorn64.c
index 49428fa3..a3700db0 100644
--- a/qemu/target-sparc/unicorn64.c
+++ b/qemu/target-sparc/unicorn64.c
@@ -46,12 +46,6 @@ int sparc_reg_read(struct uc_struct *uc, unsigned int regid, void *value)
             case UC_SPARC_REG_PC:
                 *(int64_t *)value = SPARC_CPU(uc, mycpu)->env.pc;
                 break;
-            case UC_SPARC_REG_SP:
-                *(int64_t *)value = SPARC_CPU(uc, mycpu)->env.regwptr[6];
-                break;
-            case UC_SPARC_REG_FP:
-                *(int64_t *)value = SPARC_CPU(uc, mycpu)->env.regwptr[22];
-                break;
         }
     }
 
@@ -83,12 +77,6 @@ int sparc_reg_write(struct uc_struct *uc, unsigned int regid, const void *value)
                  SPARC_CPU(uc, mycpu)->env.pc = *(uint64_t *)value;
                  SPARC_CPU(uc, mycpu)->env.npc = *(uint64_t *)value + 8;
                  break;
-            case UC_SPARC_REG_SP:
-                SPARC_CPU(uc, mycpu)->env.regwptr[6] = *(uint64_t *)value;
-                break;
-            case UC_SPARC_REG_FP:
-                SPARC_CPU(uc, mycpu)->env.regwptr[22] = *(uint64_t *)value;
-                break;
         }
     }