unix-history:unix-v6:usr:sys:seg.h
Unix V6 /usr/sys/seg.h
/* * KT-11 addresses and bits. */ #define UISD 0177600 /* first user I-space descriptor register */ #define UISA 0177640 /* first user I-space address register */ #define UDSA 0177660 /* first user D-space address register */ #define RO 02 /* access abilities */ #define WO 04 #define RW 06 #define ED 010 /* extend direction */ /* * structure used to address * a sequence of integers. */ struct { int r[]; }; int *ka6; /* 11/40 KISA6; 11/45 KDSA6 */ /* * address to access 11/70 UNIBUS map */ #define UBMAP 0170200
unix-history/unix-v6/usr/sys/seg.h.txt ยท Last modified: 2006/07/26 07:34 by 127.0.0.1