--- a/tools/lib64gfx.c	Mon Jan 13 23:20:56 2020 +0200
+++ b/tools/lib64gfx.c	Mon Jan 13 23:27:01 2020 +0200
@@ -115,7 +115,7 @@
     if ((blk->data = dmRealloc(blk->data, size)) == NULL)
         return DMERR_MALLOC;
 
-    dmMemset(blk->data + blk->size, 0, size - blk->size);
+    memset(blk->data + blk->size, 0, size - blk->size);
 
     blk->size = size;
     return DMERR_OK;
@@ -164,7 +164,7 @@
     img->fmt      = fmt->format;
     img->nblocks  = nblocks + 1;
 
-    dmMemset(img->extraInfo, 0, sizeof(img->extraInfo));
+    memset(img->extraInfo, 0, sizeof(img->extraInfo));
     img->extraInfo[D64_EI_MODE] = fmt->format->mode;
 }
 
@@ -217,7 +217,7 @@
         for (int i = 0; i < D64_MAX_EXTRA_DATA; i++)
             dmC64MemBlockFree(&img->extraData[i]);
 
-        dmMemset(img, 0, sizeof(DMC64Image));
+        memset(img, 0, sizeof(DMC64Image));
         dmFree(img);
     }
 }
@@ -979,19 +979,19 @@
                                 break;
 
                             case DO_SET_MEM:
-                                dmMemset(blk->data + ctx.op->blkoffs, *src, ctx.size);
+                                memset(blk->data + ctx.op->blkoffs, *src, ctx.size);
                                 break;
 
                             case DO_SET_MEM_HI:
-                                dmMemset(blk->data + ctx.op->blkoffs, (*src >> 4) & 0x0f, ctx.size);
+                                memset(blk->data + ctx.op->blkoffs, (*src >> 4) & 0x0f, ctx.size);
                                 break;
 
                             case DO_SET_MEM_LO:
-                                dmMemset(blk->data + ctx.op->blkoffs, *src & 0x0f, ctx.size);
+                                memset(blk->data + ctx.op->blkoffs, *src & 0x0f, ctx.size);
                                 break;
 
                             case DO_SET_OP:
-                                dmMemset(blk->data + ctx.op->blkoffs, ctx.op->offs, ctx.size);
+                                memset(blk->data + ctx.op->blkoffs, ctx.op->offs, ctx.size);
                                 break;
 
                             default:
@@ -1480,8 +1480,8 @@
                 src->extraInfo[D64_EI_MODE]);
     }
 
-    dmMemset(dst->data, 0, dst->size);
-    dmMemset(&scan, 0, sizeof(scan));
+    memset(dst->data, 0, dst->size);
+    memset(&scan, 0, sizeof(scan));
 
     // Perform conversion
     for (int yc = 0; yc < dst->height; yc++)