diff --git a/src/codegen_backend_x86-64_ops.c b/src/codegen_backend_x86-64_ops.c
index c017699..c32cd26 100644
--- a/src/codegen_backend_x86-64_ops.c
+++ b/src/codegen_backend_x86-64_ops.c
@@ -1014,7 +1014,7 @@ void host_x86_MOV32_STACK_IMM(codeblock_t *block, int32_t offset, uint32_t imm_d
                 codegen_addbyte3(block, 0xc7, 0x04, 0x24); /*MOV [ESP], imm_data*/
                 codegen_addlong(block, imm_data);
         }
-        else if (offset >= -80 || offset < 0x80)
+        else if (offset >= -0x80 && offset < 0x80)
         {
                 codegen_alloc_bytes(block, 8);
                 codegen_addbyte4(block, 0xc7, 0x44, 0x24, offset & 0xff); /*MOV offset[ESP], imm_data*/
diff --git a/src/codegen_backend_x86_ops.c b/src/codegen_backend_x86_ops.c
index 41ab522..23726eb 100644
--- a/src/codegen_backend_x86_ops.c
+++ b/src/codegen_backend_x86_ops.c
@@ -759,7 +759,7 @@ void host_x86_MOV32_STACK_IMM(codeblock_t *block, int32_t offset, uint32_t imm_d
                 codegen_addbyte3(block, 0xc7, 0x04, 0x24); /*MOV [ESP], imm_data*/
                 codegen_addlong(block, imm_data);
         }
-        else if (offset >= -80 || offset < 0x80)
+        else if (offset >= -0x80 && offset < 0x80)
         {
                 codegen_alloc_bytes(block, 8);
                 codegen_addbyte4(block, 0xc7, 0x44, 0x24, offset & 0xff); /*MOV offset[ESP], imm_data*/
diff --git a/src/codegen_backend_x86_ops_sse.c b/src/codegen_backend_x86_ops_sse.c
index ed603e7..50ec638 100644
--- a/src/codegen_backend_x86_ops_sse.c
+++ b/src/codegen_backend_x86_ops_sse.c
@@ -200,7 +200,7 @@ void host_x86_MOVQ_STACK_OFFSET_XREG(codeblock_t *block, int offset, int src_reg
                 codegen_addbyte4(block, 0x66, 0x0f, 0xd6, 0x04 | (src_reg << 3)); /*MOVQ [ESP], src_reg*/
                 codegen_addbyte(block, 0x24);
         }
-        else if (offset >= -80 || offset < 0x80)
+        else if (offset >= -0x80 && offset < 0x80)
         {
                 codegen_alloc_bytes(block, 6);
                 codegen_addbyte4(block, 0x66, 0x0f, 0xd6, 0x44 | (src_reg << 3)); /*MOVQ offset[ESP], src_reg*/