diff --git a/test/amd/test_sqtt_examples.py b/test/amd/test_sqtt_examples.py
index 58ad0926ed..1f2634be8d 100644
--- a/test/amd/test_sqtt_examples.py
+++ b/test/amd/test_sqtt_examples.py
@@ -21,7 +21,7 @@ OTHER_SIMD_OPS = {InstOp.OTHER_LDS_LOAD, InstOp.OTHER_LDS_STORE, InstOp.OTHER_LD
                   InstOp.OTHER_FLAT_STORE_128, InstOp.OTHER_GLOBAL_LOAD, InstOp.OTHER_GLOBAL_LOAD_VADDR,
                   InstOp.OTHER_GLOBAL_STORE_64, InstOp.OTHER_GLOBAL_STORE_96, InstOp.OTHER_GLOBAL_STORE_128,
                   InstOp.OTHER_GLOBAL_STORE_VADDR_128}
-OTHER_SIMD_OPS_RDNA4 = {InstOpRDNA4.OTHER_VMEM, InstOpRDNA4.UNK_60}
+OTHER_SIMD_OPS_RDNA4 = {InstOpRDNA4.OTHER_VMEM, InstOpRDNA4.OTHER_VMEM_STORE}
 
 # ═══════════════════════════════════════════════════════════════════════════════
 # ROCPROF DECODER
diff --git a/test/amd/test_sqttmap.py b/test/amd/test_sqttmap.py
index b7c760fd55..e9c5d42753 100644
--- a/test/amd/test_sqttmap.py
+++ b/test/amd/test_sqttmap.py
@@ -72,7 +72,6 @@ class TestSQTTMapBase(unittest.TestCase):
 
 class TestSQTTMapRDNA3(TestSQTTMapBase): target = "gfx1100"
 
-@unittest.skip("this doesn't work")
 class TestSQTTMapRDNA4(TestSQTTMapBase): target = "gfx1200"
 
 if __name__ == "__main__":
diff --git a/tinygrad/renderer/amd/sqtt.py b/tinygrad/renderer/amd/sqtt.py
index 99f1b0be86..474a67a959 100644
--- a/tinygrad/renderer/amd/sqtt.py
+++ b/tinygrad/renderer/amd/sqtt.py
@@ -9,8 +9,7 @@ from dataclasses import dataclass
 from typing import Iterator
 from enum import Enum
 from tinygrad.renderer.amd.dsl import BitField, FixedBitField, Inst, bits
-from tinygrad.runtime.autogen.amd.rdna3.ins import SOPP, s_endpgm
-from tinygrad.runtime.autogen.amd.rdna3.enum import SOPPOp
+from tinygrad.runtime.autogen.amd.rdna3.ins import s_endpgm # same encoding as RDNA4
 
 # ═══════════════════════════════════════════════════════════════════════════════
 # FIELD ENUMS
@@ -102,16 +101,16 @@ class InstOpRDNA4(Enum):
   """SQTT instruction operation types for RDNA4 (gfx1200). Different encoding from RDNA3."""
   # TODO: we need to do discovery of all of these from instructions
   SALU = 0x0
-  SMEM = 0x1
-  UNK_02 = 0x2
-  JUMP_NO = 0x4
-  UNK_06 = 0x6
+  JUMP = 0x1
+  NEXT = 0x2
+  MESSAGE = 0x4
+  VALU_64 = 0x6
   VMEM = 0x10
-  UNK_11 = 0x11
-  VINTERP = 0x12
-  UNK_14 = 0x14
+  VMEM_128 = 0x11
+  VMEM_STORE = 0x12
+  VMEM_STORE_128 = 0x14
   OTHER_VMEM = 0x5e
-  UNK_60 = 0x60
+  OTHER_VMEM_STORE = 0x60
 
 # ═══════════════════════════════════════════════════════════════════════════════
 # PACKET TYPE BASE CLASS
@@ -343,8 +342,12 @@ class INST_RDNA4(PacketType):  # Layout 4: different delta position and InstOp e
   delta = bits[5:3]
   flag1 = bits[6:6]
   flag2 = bits[7:7]
-  wave = bits[12:8]
+  wave_pair = bits[11:8]
+  flag3 = bits[12:12]
   op = bits[19:13].enum(InstOpRDNA4)
+  # INST_RDNA4 wave_pair field (4 bits) addresses wave pairs, flag2 selects even/odd wave
+  @property
+  def wave(self): return self.wave_pair * 2 + self.flag2
 
 class UTILCTR(PacketType):
   encoding = bits[6:0] == 0b0110001
@@ -586,7 +589,7 @@ def map_insts(data:bytes, lib:bytes, target:str) -> Iterator[tuple[PacketType, I
   def simd_select(p) -> bool: return getattr(p, "cu", 0) == 0 and getattr(p, "simd", 0) == 0
   for p in decode(data):
     if not simd_select(p): continue
-    if isinstance(p, WAVESTART):
+    if isinstance(p, (WAVESTART, WAVESTART_RDNA4)):
       assert p.wave not in wave_pc, "only one inflight wave per unit"
       wave_pc[p.wave] = next(iter(pc_map))
       continue
@@ -595,33 +598,35 @@ def map_insts(data:bytes, lib:bytes, target:str) -> Iterator[tuple[PacketType, I
       yield (p, InstructionInfo(pc, p.wave, s_endpgm()))
       continue
     # skip OTHER_ instructions, they don't belong to this unit
-    if isinstance(p, INST) and p.op.name.startswith("OTHER_"): continue
+    if isinstance(p, (INST, INST_RDNA4)) and p.op.name.startswith("OTHER_"): continue
     if isinstance(p, IMMEDIATE_MASK):
       # immediate mask may yield multiple times per packet
       for wave in range(16):
         if p.mask & (1 << wave):
           inst = pc_map[pc:=wave_pc[wave]]
           # can this assert be more strict?
-          assert isinstance(inst, SOPP), f"IMMEDIATE_MASK packet must map to SOPP, got {inst}"
+          assert type(inst).__name__ == "SOPP", f"IMMEDIATE_MASK packet must map to SOPP, got {inst}"
           wave_pc[wave] += inst.size()
           yield (p, InstructionInfo(pc, wave, inst))
       continue
-    if isinstance(p, (VALUINST, INST, IMMEDIATE)):
+    if isinstance(p, (VALUINST, INST, INST_RDNA4, IMMEDIATE)):
       inst = pc_map[pc:=wave_pc[p.wave]]
       # s_delay_alu doesn't get a packet?
-      if isinstance(inst, SOPP) and inst.op in {SOPPOp.S_DELAY_ALU}:
+      while (inst_op:=getattr(inst, 'op_name', '')) in {"S_DELAY_ALU", "S_WAIT_ALU"}:
         wave_pc[p.wave] += inst.size()
         inst = pc_map[pc:=wave_pc[p.wave]]
       # identify a branch instruction, only used for asserts
-      branch_inst = inst if isinstance(inst, SOPP) and "BRANCH" in inst.op_name else None
-      if branch_inst is not None: assert isinstance(p, INST) and p.op in {InstOp.JUMP_NO, InstOp.JUMP}, f"branch can only be folowed by JUMP, got {p}"
+      branch_inst = inst if "BRANCH" in inst_op else None
+      if branch_inst is not None:
+        assert isinstance(p, (INST, INST_RDNA4)) and p.op.name in {"JUMP_NO", "JUMP", "NEXT"}, f"branch can only be folowed by JUMP, got {p}"
       # JUMP handling
-      if isinstance(p, INST) and p.op is InstOp.JUMP:
-        assert branch_inst is not None, f"JUMP packet must map to a branch instruction, got {inst}"
-        x = branch_inst.simm16 & 0xffff
+      if (isinstance(p, INST) and p.op is InstOp.JUMP) or (isinstance(p, INST_RDNA4) and branch_inst is not None and p.flag3):
+        simm16 = getattr(branch_inst, 'simm16')
+        assert branch_inst is not None and simm16 is not None, f"JUMP packet must map to a branch instruction, got {inst}"
+        x = simm16 & 0xffff
         wave_pc[p.wave] += branch_inst.size() + (x - 0x10000 if x & 0x8000 else x)*4
       else:
-        if branch_inst is not None: assert branch_inst.op != SOPPOp.S_BRANCH, f"S_BRANCH must have a JUMP packet, got {p}"
+        if branch_inst is not None: assert inst_op != "S_BRANCH", f"S_BRANCH must have a JUMP packet, got {p}"
         wave_pc[p.wave] += inst.size()
       yield (p, InstructionInfo(pc, p.wave, inst))
       continue