diff --git a/Makefile b/Makefile
index b28524c..9ce264e 100644
--- a/Makefile
+++ b/Makefile
@@ -49,10 +49,12 @@ dist:
 		$(PACKAGE)-$(VERSION)/src/parser.h \
 		$(PACKAGE)-$(VERSION)/src/token.h \
 		$(PACKAGE)-$(VERSION)/src/project.conf \
+		$(PACKAGE)-$(VERSION)/src/arch/i386.c \
 		$(PACKAGE)-$(VERSION)/src/arch/sparc.c \
 		$(PACKAGE)-$(VERSION)/src/arch/Makefile \
 		$(PACKAGE)-$(VERSION)/src/arch/common.ins \
-		$(PACKAGE)-$(VERSION)/src/arch/common.reg \
+		$(PACKAGE)-$(VERSION)/src/arch/i386.ins \
+		$(PACKAGE)-$(VERSION)/src/arch/i386.reg \
 		$(PACKAGE)-$(VERSION)/src/arch/null.ins \
 		$(PACKAGE)-$(VERSION)/src/arch/sparc.ins \
 		$(PACKAGE)-$(VERSION)/src/arch/sparc.reg \
@@ -64,6 +66,7 @@ dist:
 		$(PACKAGE)-$(VERSION)/src/format/pe.c \
 		$(PACKAGE)-$(VERSION)/src/format/Makefile \
 		$(PACKAGE)-$(VERSION)/src/format/project.conf \
+		$(PACKAGE)-$(VERSION)/test/i386.S \
 		$(PACKAGE)-$(VERSION)/test/sparc.S \
 		$(PACKAGE)-$(VERSION)/test/Makefile \
 		$(PACKAGE)-$(VERSION)/test/project.conf \
diff --git a/src/arch/Makefile b/src/arch/Makefile
index a0152e4..06d74ee 100644
--- a/src/arch/Makefile
+++ b/src/arch/Makefile
@@ -1,4 +1,4 @@
-TARGETS	= sparc.so
+TARGETS	= i386.so sparc.so
 PREFIX	= /usr/local
 DESTDIR	= 
 LIBDIR	= $(PREFIX)/lib
@@ -18,6 +18,13 @@ INSTALL	= install
 
 all: $(TARGETS)
 
+i386_OBJS = i386.o
+i386_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
+i386_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
+
+i386.so: $(i386_OBJS)
+	$(LD) -o i386.so $(i386_OBJS) $(i386_LDFLAGS)
+
 sparc_OBJS = sparc.o
 sparc_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 sparc_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
@@ -25,20 +32,26 @@ sparc_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 sparc.so: $(sparc_OBJS)
 	$(LD) -o sparc.so $(sparc_OBJS) $(sparc_LDFLAGS)
 
-sparc.o: sparc.c common.ins common.reg null.ins sparc.ins sparc.reg
+i386.o: i386.c common.ins null.ins i386.ins i386.reg
+	$(CC) $(i386_CFLAGS) -c i386.c
+
+sparc.o: sparc.c common.ins null.ins sparc.ins sparc.reg
 	$(CC) $(sparc_CFLAGS) -c sparc.c
 
 clean:
-	$(RM) -- $(sparc_OBJS)
+	$(RM) -- $(i386_OBJS) $(sparc_OBJS)
 
 distclean: clean
 	$(RM) -- $(TARGETS)
 
 install: $(TARGETS)
+	$(MKDIR) $(DESTDIR)$(LIBDIR)/asm/arch
+	$(INSTALL) -m 0644 -- i386.so $(DESTDIR)$(LIBDIR)/asm/arch/i386.so
 	$(MKDIR) $(DESTDIR)$(LIBDIR)/asm/arch
 	$(INSTALL) -m 0644 -- sparc.so $(DESTDIR)$(LIBDIR)/asm/arch/sparc.so
 
 uninstall:
+	$(RM) -- $(DESTDIR)$(LIBDIR)/asm/arch/i386.so
 	$(RM) -- $(DESTDIR)$(LIBDIR)/asm/arch/sparc.so
 
 .PHONY: all clean distclean install uninstall
diff --git a/src/arch/common.reg b/src/arch/common.reg
deleted file mode 100644
index b8a0c2c..0000000
--- a/src/arch/common.reg
+++ /dev/null
@@ -1,13 +0,0 @@
-AO_NONE = _AO_NONE,
-AO_OP	= _AO_OP,
-AO_IMM	= _AO_IMM,
-AO_REG	= _AO_REG,
-AO_DREG	= _AO_DREG,
-AO_OP_	= _AO_OP_,
-AO_IMM_	= _AO_IMM_,
-AO_REG_	= _AO_REG_,
-AO_DREG_= _AO_DREG_,
-AO_OP__	= _AO_OP__,
-AO_IMM__= _AO_IMM__,
-AO_REG__= _AO_REG__,
-AO_DREG__= _AO_DREG__,
diff --git a/src/arch/i386.c b/src/arch/i386.c
new file mode 100644
index 0000000..bc81c69
--- /dev/null
+++ b/src/arch/i386.c
@@ -0,0 +1,47 @@
+/* $Id$ */
+/* Copyright (c) 2011 Pierre Pronchery <khorben@defora.org> */
+/* This file is part of DeforaOS Devel asm */
+/* This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+
+
+#include <stddef.h>
+#include "Asm/arch.h"
+
+
+/* i386 */
+/* private */
+/* variables */
+#define REG(name, size, id) { "" # name, size, id },
+static ArchRegister _i386_registers[] =
+{
+#include "i386.reg"
+	{ NULL,		0, 0 }
+};
+
+static ArchInstruction _i386_instructions[] =
+{
+#include "i386.ins"
+#include "common.ins"
+#include "null.ins"
+};
+
+ArchPlugin arch_plugin =
+{
+	"i386",
+	"elf",
+	NULL,
+	_i386_registers,
+	_i386_instructions,
+	NULL
+};
diff --git a/src/arch/i386.ins b/src/arch/i386.ins
new file mode 100644
index 0000000..787d939
--- /dev/null
+++ b/src/arch/i386.ins
@@ -0,0 +1,4 @@
+/* helpers */
+#define OP1F		(1 << AOD_SIZE)
+
+{ "nop",	0x90,		OP1F, AOT_NONE, AOT_NONE, AOT_NONE	},
diff --git a/src/arch/i386.reg b/src/arch/i386.reg
new file mode 100644
index 0000000..d4e078c
--- /dev/null
+++ b/src/arch/i386.reg
@@ -0,0 +1,40 @@
+REG(ax,	16,	0x00)
+REG(ah,	8,	0x01)
+REG(al,	8,	0x02)
+REG(bx,	16,	0x03)
+REG(bh,	8,	0x04)
+REG(bl,	8,	0x05)
+REG(cx,	16,	0x06)
+REG(ch,	8,	0x07)
+REG(cl,	8,	0x08)
+REG(dx,	16,	0x09)
+REG(dh,	8,	0x0a)
+REG(dl,	8,	0x0b)
+REG(sp, 16,	0x0c)
+REG(bp, 16,	0x0d)
+REG(si, 16,	0x0e)
+REG(di, 16,	0x0f)
+REG(cs, 16,	0x10)
+REG(ss, 16,	0x11)
+REG(ds, 16,	0x12)
+REG(es, 16,	0x13)
+REG(fs, 16,	0x14)
+REG(gs, 16,	0x15)
+#ifndef ARCH_i386_real
+REG(eax,32,	0x16)
+REG(ebx,32,	0x17)
+REG(ecx,32,	0x18)
+REG(edx,32,	0x19)
+REG(esi,32,	0x1a)
+REG(edi,32,	0x1b)
+REG(esp,32,	0x1c)
+REG(ebp,32,	0x1d)
+#endif /* !ARCH_i386_real */
+REG(st0,32,	0x1f)
+REG(st1,32,	0x20)
+REG(st2,32,	0x21)
+REG(st3,32,	0x22)
+REG(st4,32,	0x23)
+REG(st5,32,	0x24)
+REG(st6,32,	0x25)
+REG(st7,32,	0x26)
diff --git a/src/arch/project.conf b/src/arch/project.conf
index 6cc6314..1745cd1 100644
--- a/src/arch/project.conf
+++ b/src/arch/project.conf
@@ -1,8 +1,16 @@
-targets=sparc
+targets=i386,sparc
 cppflags_force=-I ../../include
 cflags_force=-W
 cflags=-Wall -fPIC -pedantic
-dist=Makefile,common.ins,common.reg,null.ins,sparc.ins,sparc.reg
+dist=Makefile,common.ins,i386.ins,i386.reg,null.ins,sparc.ins,sparc.reg
+
+[i386]
+type=plugin
+sources=i386.c
+install=$(LIBDIR)/asm/arch
+
+[i386.c]
+depends=common.ins,null.ins,i386.ins,i386.reg
 
 [sparc]
 type=plugin
@@ -10,4 +18,4 @@ sources=sparc.c
 install=$(LIBDIR)/asm/arch
 
 [sparc.c]
-depends=common.ins,common.reg,null.ins,sparc.ins,sparc.reg
+depends=common.ins,null.ins,sparc.ins,sparc.reg
diff --git a/src/code.c b/src/code.c
index d5686c0..297eae6 100644
--- a/src/code.c
+++ b/src/code.c
@@ -287,11 +287,23 @@ static int _instruction_fixed_register(Code * code, ArchOperand operand,
 static int _instruction_variable(Code * code, ArchInstruction * ai,
 		AsOperand ** operands, size_t operands_cnt)
 {
+	size_t size;
+	char buf[8];
+
 #ifdef DEBUG
 	fprintf(stderr, "DEBUG: %s()\n", __func__);
 #endif
-	/* FIXME implement */
-	return -1;
+	if((size = AO_GET_SIZE(ai->opcode)) > sizeof(buf))
+		return -1; /* XXX report error */
+	if(size > 0)
+	{
+		memcpy(buf, &ai->value, size);
+		if(fwrite(&buf, size, 1, code->fp) != 1)
+			return -error_set_code(1, "%s: %s", code->filename,
+					strerror(errno));
+	}
+	/* FIXME implement operands */
+	return 0;
 }
 #if 0
 	switch(AO_GET_SIZE(ai->opcode))
diff --git a/test/Makefile b/test/Makefile
index aebadae..650078f 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,4 +1,4 @@
-TARGETS	= sparc.o
+TARGETS	= i386.o sparc.o
 PREFIX	= /usr/local
 DESTDIR	= 
 BINDIR	= $(PREFIX)/bin
@@ -12,14 +12,20 @@ INSTALL	= install
 
 all: $(TARGETS)
 
+i386.o_OBJS = i386.o
+i386.o_ASFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(ASFLAGS) -a i386 -f flat
+
 sparc.o_OBJS = sparc.o
-sparc.o_ASFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(ASFLAGS) -a sparc
+sparc.o_ASFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(ASFLAGS) -a sparc -f flat
+
+i386.o: i386.S ../src/asm
+	$(AS) $(i386.o_ASFLAGS) -o i386.o i386.S
 
 sparc.o: sparc.S ../src/asm
 	$(AS) $(sparc.o_ASFLAGS) -o sparc.o sparc.S
 
 clean:
-	$(RM) -- $(sparc.o_OBJS)
+	$(RM) -- $(i386.o_OBJS) $(sparc.o_OBJS)
 
 distclean: clean
 	$(RM) -- $(TARGETS)
diff --git a/test/i386.S b/test/i386.S
new file mode 100644
index 0000000..d1836f2
--- /dev/null
+++ b/test/i386.S
@@ -0,0 +1,2 @@
+.text
+	nop
diff --git a/test/project.conf b/test/project.conf
index a487313..230b7ef 100644
--- a/test/project.conf
+++ b/test/project.conf
@@ -1,11 +1,19 @@
-targets=sparc.o
+targets=i386.o,sparc.o
 as=../src/asm
 dist=Makefile
 
+[i386.o]
+type=object
+sources=i386.S
+
+[i386.S]
+asflags=-a i386 -f flat
+depends=../src/asm
+
 [sparc.o]
 type=object
 sources=sparc.S
 
 [sparc.S]
-asflags=-a sparc
+asflags=-a sparc -f flat
 depends=../src/asm