diff --git a/abstract-machine/am/src/platform/nemu/ioe/gpu.c b/abstract-machine/am/src/platform/nemu/ioe/gpu.c
index 35092d2..49a7f24 100644
--- a/abstract-machine/am/src/platform/nemu/ioe/gpu.c
+++ b/abstract-machine/am/src/platform/nemu/ioe/gpu.c
@@ -19,9 +19,9 @@ void __am_gpu_init() {
 void __am_gpu_config(AM_GPU_CONFIG_T *cfg) {
   // uint32_t vgactl = inl(VGACTL_ADDR);
   GET_W(w);
-  PNT_BITS(w, 16, 'W');
+  // PNT_BITS(w, 16, 'W');
   GET_H(h);
-  PNT_BITS(h, 16, 'H');
+  // PNT_BITS(h, 16, 'H');
   *cfg = (AM_GPU_CONFIG_T) {
     .present = true, .has_accel = false,
     .width = w, .height = h,
@@ -33,7 +33,7 @@ void __am_gpu_fbdraw(AM_GPU_FBDRAW_T *ctl) {
   GET_W(w);
   for (int i = 0; i < ctl->h; i++) {
     for (int j = 0; j < ctl->w; j++) {
-      outl(FB_ADDR + w * j + i, (uint32_t)ctl->pixels + w * j + i);
+      outl(FB_ADDR + (ctl->y + j) * w + (ctl->x + i), (uint32_t)ctl->pixels + w * j + i);
     }
   }
   if (ctl->sync && inl(SYNC_ADDR) == 0) {