1 /* 2 * 386 Special registers: 3 */ 4 5 #define CR0_PE 0x00000001 /* Protected mode Enable */ 6 #define CR0_MP 0x00000002 /* "Math" Present (e.g. npx), wait for it */ 7 #define CR0_EM 0x00000004 /* EMulate NPX, e.g. trap, don't execute code */ 8 #define CR0_TS 0x00000008 /* Process has done Task Switch, do NPX save */ 9 #define CR0_ET 0x00000010 /* 32 bit (if set) vs 16 bit (387 vs 287) */ 10 #define CR0_PG 0x80000000 /* Paging Enable */ 11