diff --git a/regs/assembler/fs/emitter.py b/regs/assembler/fs/emitter.py
index d1839eb..49dee47 100644
--- a/regs/assembler/fs/emitter.py
+++ b/regs/assembler/fs/emitter.py
@@ -161,6 +161,9 @@ def emit_addr(code, addr):
         US_ALU_RGB_ADDR.SRCP_OP(code, addr.rgb.srcp.value)
 
 def emit_instruction(code, ins):
+    US_CMN_INST.TYPE(code, ins.type.value)
+    US_CMN_INST.TEX_SEM_WAIT(code, int(ins.tex_sem_wait))
+
     emit_addr(code, ins.addr)
     emit_alpha_op(code, ins.alpha_op)
     emit_rgb_op(code, ins.rgb_op)
diff --git a/regs/assembler/fs/parser.py b/regs/assembler/fs/parser.py
index 7532785..5310047 100644
--- a/regs/assembler/fs/parser.py
+++ b/regs/assembler/fs/parser.py
@@ -40,6 +40,8 @@ class Operation:
 
 @dataclass
 class Instruction:
+    out: bool
+    tex_sem_wait: bool
     let_expressions: list[LetExpression]
     operations: list[Operation]
 
@@ -160,6 +162,15 @@ class Parser(BaseParser):
         )
 
     def instruction(self):
+        out = False
+        if self.match_keyword(KW.OUT):
+            self.advance()
+            out = True
+        tex_sem_wait = False
+        if self.match_keyword(KW.TEX_SEM_WAIT):
+            self.advance()
+            tex_sem_wait = True
+
         let_expressions = []
         while not self.match(TT.colon):
             let_expressions.append(self.let_expression())
@@ -177,6 +188,8 @@ class Parser(BaseParser):
         self.consume(TT.semicolon, "expected semicolon")
 
         return Instruction(
+            out,
+            tex_sem_wait,
             let_expressions,
             operations,
         )
@@ -193,6 +206,7 @@ src0.a = float(0), src0.rgb = temp[0] :
   out[0].none = temp[0].r    = DP3 src0.rg0 src0.rg0 ;
     """
     buf = b"""
+OUT TEX_SEM_WAIT
 src0.a = float(0), src1.a = float(0), src2.a = float(0), srcp.a = neg2, src0.rgb = temp[0], src1.rgb = float(0), src2.rgb = float(0), srcp.rgb = neg2 :
   out[0].none = temp[0].none = MAD src0.r src0.r src0.r ,
   out[0].none = temp[0].r    = DP3 src0.rg0 src0.rg0 src0.rrr ;
diff --git a/regs/assembler/fs/validator.py b/regs/assembler/fs/validator.py
index 646a950..6944f70 100644
--- a/regs/assembler/fs/validator.py
+++ b/regs/assembler/fs/validator.py
@@ -139,8 +139,16 @@ class RGBOperation:
     opcode: RGBOp
     sels: list[SwizzleSel]
 
+class InstructionType(IntEnum):
+    ALU = 0
+    OUT = 1
+    FC = 2
+    TEX = 3
+
 @dataclass
 class Instruction:
+    type: InstructionType
+    tex_sem_wait: bool
     addr: Addr
     alpha_op: AlphaOperation
     rgb_op: RGBOperation
@@ -474,7 +482,17 @@ def validate_instruction_operations(operations):
 
 def validate_instruction(ins):
     addr_rgb_alpha = validate_instruction_let_expressions(ins.let_expressions)
-    instruction = Instruction(addr_rgb_alpha, None, None)
+
+    instruction_type = InstructionType.OUT if ins.out else InstructionType.ALU
+    tex_sem_wait = ins.tex_sem_wait
+
+    instruction = Instruction(
+        instruction_type,
+        tex_sem_wait,
+        addr_rgb_alpha,
+        None,
+        None
+    )
     for op in validate_instruction_operations(ins.operations):
         if type(op) is RGBOperation:
             instruction.rgb_op = op
diff --git a/regs/assembler/parser.py b/regs/assembler/parser.py
index ea6f3cb..fd633bf 100644
--- a/regs/assembler/parser.py
+++ b/regs/assembler/parser.py
@@ -1,5 +1,7 @@
 from typing import Any
 
+from assembler.lexer import TT
+
 class ParserError(Exception):
     pass
 
@@ -24,6 +26,13 @@ class BaseParser:
         token = self.peek()
         return token.type == token_type
 
+    def match_keyword(self, keyword):
+        if self.match(TT.keyword):
+            token = self.peek()
+            return token.keyword == keyword
+        else:
+            return False
+
     def consume(self, token_type, message):
         token = self.advance()
         if token.type != token_type: