1991/0719/pc/mem.h (diff list | history)

1991/0718/sys/src/9/pc/mem.h:48,54 – 1991/0719/sys/src/9/pc/mem.h:48,54 (short | long | prev | next)
1991/0625		#define TSTKSIZ 10
1991/0718		#define USTKTOP (TSTKTOP-TSTKSIZ*BY2PG) /* byte just beyond user stack */ #define USTKSIZE (4*1024*1024 - TSTKSIZ*BY2PG) /* size of user stack */ #define USTKBTM USTKTOP - USTKSIZE
1991/0719		#define USTKBTM (USTKTOP - USTKSIZE)
1991/0625		#define MACHSIZE 4096
1991/0718/sys/src/9/pc/mem.h:63,71 – 1991/0719/sys/src/9/pc/mem.h:63,69
1991/0703		#define UDSEG 3 /* user data/stack */ #define UESEG 4 /* user executable */
1991/0625		#define SYSGATE 5 /* system call gate */
1991/0706		#define RDSEG 6 /* reboot data/stack */
1991/0717		#define RESEG 7 /* reboot executable */ #define TSSSEG 8 /* task segment */
1991/0719		#define TSSSEG 6 /* task segment */
1991/0625		#define SELGDT (0<<3) /* selector is in gdt */ #define SELLDT (1<<3) /* selector is in ldt */
1991/0718/sys/src/9/pc/mem.h:77,84 – 1991/0719/sys/src/9/pc/mem.h:75,80
1991/0613		#define KDSEL SELECTOR(KDSEG, SELGDT, 0) #define UESEL SELECTOR(UESEG, SELGDT, 3) #define UDSEL SELECTOR(UDSEG, SELGDT, 3)
1991/0706		#define RDSEL SELECTOR(RDSEG, SELGDT, 0) #define RESEL SELECTOR(RESEG, SELGDT, 0)
1991/0717		#define TSSSEL SELECTOR(TSSSEG, SELGDT, 0)
1991/0613
1991/0627		/*