diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 428db4a1d8..1ee6f8ce7e 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -386,6 +386,8 @@ typedef enum {
     READ_FSR = 0x70,
     RDCR = 0x15,
     RDSFDP = 0x5a,
+    PROGRAM_ERASE_SUSPEND = 0x75,
+    PROGRAM_ERASE_RESUME = 0x7a,
 
     READ = 0x03,
     READ4 = 0x13,
@@ -1405,6 +1407,9 @@ static void decode_new_cmd(Flash *s, uint32_t value)
         }
         break;
     case NOP:
+    case PROGRAM_ERASE_SUSPEND:
+    case PROGRAM_ERASE_RESUME:
+        /* Program and erase complete synchronously in this model. */
         break;
     case EN_4BYTE_ADDR:
         s->four_bytes_address_mode = true;
diff --git a/tcg/wasm32.c b/tcg/wasm32.c
index dfcbf1493b..7393dab398 100644
--- a/tcg/wasm32.c
+++ b/tcg/wasm32.c
@@ -52,7 +52,7 @@ EM_JS(int, instantiate_wasm, (), {
         const import_vec_size = memory_v.getInt32(wasm_begin + wasm_size, true);
         const import_vec_begin = wasm_begin + wasm_size + 4;
 
-        const wasm = HEAP8.subarray(wasm_begin, wasm_begin + wasm_size);
+        const wasm = Uint8Array.from(HEAP8.subarray(wasm_begin, wasm_begin + wasm_size));
         var helper = {};
         for (var i = 0; i < import_vec_size / 4; i++) {
             helper[i] = wasmTable.get(memory_v.getInt32(import_vec_begin + i * 4, true));