diff --git a/arch/AArch64/AArch64InstPrinter.c b/arch/AArch64/AArch64InstPrinter.c
index 1b7e3d77..ad9f04dc 100644
--- a/arch/AArch64/AArch64InstPrinter.c
+++ b/arch/AArch64/AArch64InstPrinter.c
@@ -734,7 +734,7 @@ static void printVectorList(MCInst *MI, unsigned OpNum,
 #define PRINT_ALIAS_INSTR
 #include "AArch64GenAsmWriter.inc"
 
-void AArch64_post_printer(unsigned int insn, cs_insn *pub_insn, const char *insn_asm)
+void AArch64_post_printer(cs_insn *pub_insn, char *insn_asm)
 {
 	// check if this insn requests write-back
 	if (strrchr(insn_asm, '!') != NULL)
diff --git a/arch/AArch64/AArch64InstPrinter.h b/arch/AArch64/AArch64InstPrinter.h
index 4ba343ce..3db8d769 100644
--- a/arch/AArch64/AArch64InstPrinter.h
+++ b/arch/AArch64/AArch64InstPrinter.h
@@ -23,6 +23,6 @@
 
 void AArch64_printInst(MCInst *MI, SStream *O, void *);
 
-void AArch64_post_printer(unsigned int insn, cs_insn *pub_insn, const char *insn_asm);
+void AArch64_post_printer(cs_insn *pub_insn, char *insn_asm);
 
 #endif
diff --git a/arch/ARM/ARMInstPrinter.c b/arch/ARM/ARMInstPrinter.c
index 1771c68f..d6c8f004 100644
--- a/arch/ARM/ARMInstPrinter.c
+++ b/arch/ARM/ARMInstPrinter.c
@@ -219,7 +219,7 @@ static name_map insn_update_flgs[] = {
 	{ ARM_INS_UMULL, "umulls" },
 };
 
-void ARM_post_printer(unsigned int insn, cs_insn *pub_insn, const char *insn_asm)
+void ARM_post_printer(cs_insn *pub_insn, char *insn_asm)
 {
 	// check if this insn requests write-back
 	if (strrchr(insn_asm, '!') != NULL) {
@@ -232,7 +232,7 @@ void ARM_post_printer(unsigned int insn, cs_insn *pub_insn, const char *insn_asm
 		int i;
 
 		for (i = 0; i < ARR_SIZE(insn_update_flgs); i++) {
-			if (insn == insn_update_flgs[i].id &&
+			if (pub_insn->id == insn_update_flgs[i].id &&
 					!strncmp(insn_asm, insn_update_flgs[i].name,
 						strlen(insn_update_flgs[i].name))) {
 				pub_insn->arm.update_flags = true;
diff --git a/arch/ARM/ARMInstPrinter.h b/arch/ARM/ARMInstPrinter.h
index 6d3adc90..00529e15 100644
--- a/arch/ARM/ARMInstPrinter.h
+++ b/arch/ARM/ARMInstPrinter.h
@@ -22,6 +22,6 @@
 #include "../../SStream.h"
 
 void ARM_printInst(MCInst *MI, SStream *O, void *Info);
-void ARM_post_printer(unsigned int insn, cs_insn *pub_insn, const char *mnem);
+void ARM_post_printer(cs_insn *pub_insn, char *mnem);
 
 #endif
diff --git a/arch/X86/X86IntelInstPrinter.c b/arch/X86/X86IntelInstPrinter.c
index 5f55f3d8..744ec7eb 100644
--- a/arch/X86/X86IntelInstPrinter.c
+++ b/arch/X86/X86IntelInstPrinter.c
@@ -208,10 +208,6 @@ static bool printAliasInstr(MCInst *MI, SStream *OS);
 static void printInstruction(MCInst *MI, SStream *O);
 void X86_Intel_printInst(MCInst *MI, SStream *O, void *Info)
 {
-	//const MCInstrDesc &Desc = MII.get(MI->getOpcode());
-	// FIXME: target-specified flags need to be handled here
-	//uint64_t TSFlags = Desc.TSFlags;
-
 	//if (TSFlags & X86II::LOCK)
 	//  O << "\tlock\n";
 
diff --git a/arch/X86/mapping.c b/arch/X86/mapping.c
index 0d55396e..bb7da0b1 100644
--- a/arch/X86/mapping.c
+++ b/arch/X86/mapping.c
@@ -6590,6 +6590,21 @@ static insn_map insns[] = {
 	{ X86_XTEST, X86_INS_XTEST, { 0 }, { X86_REG_EFLAGS, 0 }, { 0 }, 0, 0 },
 };
 
+// post printer for X86. put all the hacky stuff here
+void X86_post_printer(cs_insn *insn, char *insn_asm)
+{
+	// FIXME: hack to fix some broken decoding here. TODO
+	if (insn->id == X86_INS_OUTSD) {
+		if (insn->x86.op_size == 2) {
+			// modify insn id
+			insn->id = X86_INS_OUTSW;
+			// modify instruction buffer, too
+			memcpy(insn_asm, "outsw", strlen("outsw"));
+		}
+	}
+}
+
+// given internal insn id, return public instruction info
 void X86_get_insn_id(cs_insn *insn, unsigned int id)
 {
 	int i = insn_find(insns, ARR_SIZE(insns), id);
diff --git a/arch/X86/mapping.h b/arch/X86/mapping.h
index de7d6e99..1a1778ce 100644
--- a/arch/X86/mapping.h
+++ b/arch/X86/mapping.h
@@ -34,4 +34,7 @@ x86_reg X86_map_insn(const char *mnem);
 // given public insn id, return internal insn id
 unsigned int X86_get_insn_id2(unsigned int insn_id);
 
+// post printer for X86.
+void X86_post_printer(cs_insn *pub_insn, char *insn_asm);
+
 #endif
diff --git a/cs.c b/cs.c
index a83f522f..35f5bef6 100644
--- a/cs.c
+++ b/cs.c
@@ -74,6 +74,7 @@ cs_err cs_open(cs_arch arch, cs_mode mode, csh *handle)
 			ud->reg_name = X86_reg_name;
 			ud->insn_id = X86_get_insn_id;
 			ud->insn_name = X86_insn_name;
+			ud->post_printer = X86_post_printer;
 			break;
 		case CS_ARCH_ARM: {
 					MCRegisterInfo *mri = malloc(sizeof(*mri));
@@ -177,7 +178,7 @@ static void fill_insn(cs_struct *handle, cs_insn *insn, char *buffer, MCInst *mc
 		insn->id = MCInst_getOpcodePub(mci);
 
 	if (printer)
-		printer(insn->id, insn, buffer);
+		printer(insn, buffer);
 
 	// fill in mnemonic & operands
 	// find first space or tab
@@ -192,7 +193,6 @@ static void fill_insn(cs_struct *handle, cs_insn *insn, char *buffer, MCInst *mc
 		for (; ((*sp == ' ') || (*sp == '\t')); sp++);
 		strncpy(insn->op_str, sp, sizeof(insn->op_str) - 1);
 		insn->op_str[sizeof(insn->op_str) - 1] = '\0';
-		printf(">>>> |%s|\n", insn->op_str);
 	} else
 		insn->op_str[0] = '\0';
 
diff --git a/cs_priv.h b/cs_priv.h
index 26e7a81a..39207a22 100644
--- a/cs_priv.h
+++ b/cs_priv.h
@@ -13,7 +13,7 @@ typedef void (*Printer_t)(MCInst *MI, SStream *OS, void *info);
 
 // function to be called after Printer_t
 // this is the best time to gather insn's characteristics
-typedef void (*PostPrinter_t)(unsigned int insn, cs_insn *, const char *mnem);
+typedef void (*PostPrinter_t)(cs_insn *, char *mnem);
 
 typedef bool (*Disasm_t)(csh handle, const uint8_t *code, size_t code_len, MCInst *instr, uint16_t *size, uint64_t address, void *info);