init repo

lab1/csrc/hdmi_test.c

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+// Copyright 2022 hrpccs
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+#include "mmio.h" 
+
+
+
+int main(){
+    int *vram = ((int *) VRAM_BASE);
+    for (int i = 0; i < 600; ++i) vram[i] = 0x20202020;
+
+    for(int i = 0;i < 12;i++){
+        VRAM[i] = "hello world!"[i];
+    }
+
+    while(1);
+}