diff --git a/src/arch/sparc.c b/src/arch/sparc.c
index 762213d..f66c2bb 100644
--- a/src/arch/sparc.c
+++ b/src/arch/sparc.c
@@ -63,6 +63,8 @@ ArchPlugin arch_plugin =
 /* functions */
 /* plug-in */
 /* sparc_write */
+static int _write_integer(ArchPlugin * plugin, ArchInstruction * instruction,
+		ArchInstructionCall * call, uint32_t * opcode);
 static int _write_loadstore(ArchPlugin * plugin, ArchInstruction * instruction,
 		ArchInstructionCall * call, uint32_t * opcode);
 static int _write_sethi(ArchPlugin * plugin, ArchInstruction * instruction,
@@ -79,6 +81,9 @@ static int _sparc_write(ArchPlugin * plugin, ArchInstruction * instruction,
 	else if((opcode & 0x01000000) == 0x01000000 && _write_sethi(plugin,
 				instruction, call, &opcode) != 0)
 		return -1;
+	else if((opcode & 0xc0000000) == 0x80000000 && _write_integer(plugin,
+				instruction, call, &opcode) != 0)
+		return -1;
 	/* FIXME implement the rest */
 	opcode = _htob32(opcode);
 	if(fwrite(&opcode, sizeof(opcode), 1, plugin->helper->fp) != 1)
@@ -86,6 +91,55 @@ static int _sparc_write(ArchPlugin * plugin, ArchInstruction * instruction,
 	return 0;
 }
 
+static int _write_integer(ArchPlugin * plugin, ArchInstruction * instruction,
+		ArchInstructionCall * call, uint32_t * opcode)
+{
+	ArchPluginHelper * helper = plugin->helper;
+	uint32_t rd;
+	uint32_t rs1;
+	uint32_t rs2;
+	char const * name;
+	ArchRegister * ar;
+
+	/* rs1 */
+	if(AO_GET_TYPE(instruction->op1) != AOT_REGISTER)
+		return -1;
+	name = call->operands[0].value._register.name;
+	if((ar = helper->get_register_by_name_size(helper->arch,
+					name, 32)) == NULL)
+		return -1;
+	rs1 = (ar->id << 14);
+	/* rs2 */
+	if(AO_GET_TYPE(instruction->op2) == AOT_REGISTER)
+	{
+		name = call->operands[1].value._register.name;
+		if((ar = helper->get_register_by_name_size(helper->arch,
+						name, 32)) == NULL)
+			return -1;
+		rs2 = ar->id;
+	}
+	else if(AO_GET_TYPE(instruction->op2) == AOT_IMMEDIATE)
+	{
+		rs2 = call->operands[1].value.immediate.value;
+		if(call->operands[1].value.immediate.negative)
+			rs2 = -rs2;
+		rs2 &= 0x00001fff;
+		rs2 |= (1 << 13);
+	}
+	else
+		return -1;
+	/* rd */
+	if(AO_GET_TYPE(instruction->op3) != AOT_REGISTER)
+		return -1;
+	name = call->operands[2].value._register.name;
+	if((ar = helper->get_register_by_name_size(helper->arch,
+					name, 32)) == NULL)
+		return -1;
+	rd = (ar->id << 25);
+	*opcode |= (rd | rs1 | rs2);
+	return 0;
+}
+
 static int _write_loadstore(ArchPlugin * plugin, ArchInstruction * instruction,
 		ArchInstructionCall * call, uint32_t * opcode)
 {