crt               129 console.c      static ushort *crt = (ushort*)P2V(0xb8000);  // CGA memory
crt               147 console.c          crt[pos++] = (c&0xff) | 0x0700;  // black on white
crt               153 console.c          memmove(crt, crt+80, sizeof(crt[0])*23*80);
crt               155 console.c          memset(crt+pos, 0, sizeof(crt[0])*(24*80 - pos));
crt               162 console.c        crt[pos] = ' ' | 0x0700;