[simd/v3i]: Implement v128 load_zero

titzer · Nov 17, 2023 · d0339e7 · d0339e7
1 parent 7474dea
commit d0339e7
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/engine/v3/V3Interpreter.v3 b/src/engine/v3/V3Interpreter.v3
@@ -922,6 +922,8 @@ component V3Interpreter {
 			V128_LOAD_32_SPLAT => doLoadSplat(4, 2, DataReaders.read_range_u32);
 			V128_LOAD_16_SPLAT => doLoadSplat(2, 1, DataReaders.read_range_u32_u16);
 			V128_LOAD_8_SPLAT => doLoadSplat(1, 0, DataReaders.read_range_u32_u8);
+			V128_LOAD_32_ZERO => doLoadZero(4, DataReaders.read_range_u32);
+			V128_LOAD_64_ZERO => doLoadZero(8, DataReaders.read_range_u64);
 			V128_STORE => doStore(16, DataWriters.write_range_u128, Values.v_v128);
 			V128_CONST => {
 				var low = codeptr.read_u64();
@@ -1139,6 +1141,13 @@ component V3Interpreter {
 		}
 		push(Value.V128(low, high));
 	}
+	def doLoadZero<T>(size: byte, read: Range<byte> -> T) {
+		var t = doLoadReg(size);
+		if (t.reason != TrapReason.NONE) return trap(t.reason);
+		var val = u64.!(read(t.result));
+		var high = 0ul;
+		push(Value.V128(val, high));
+	}
 	def doExtractLane<T, S>(log2_size: u3, view: u64 -> T, extend: T -> S, stack_push: (S) -> void) {
 		var v = Values.v_v128(pop());
 		var idx = codeptr.read1();