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Implemented selector limits on some instructions - fixes LBA2.

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GPFs in real mode now work.
Selectors correctly zeroed on far return to lower privilege.
This commit is contained in:
TomW 2014-08-13 20:33:56 +01:00
commit cd2c3b47ed
16 changed files with 404 additions and 462 deletions
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5
src/ibm.h
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@ -108,15 +108,18 @@ extern int cycdiff;
typedef struct
{
uint32_t base;
uint32_t limit,limitw;
uint32_t limit;
uint8_t access;
uint16_t seg;
uint32_t limit_low, limit_high;
} x86seg;
x86seg gdt,ldt,idt,tr;
x86seg _cs,_ds,_es,_ss,_fs,_gs;
x86seg _oldds;
extern x86seg *ea_seg;
uint32_t pccache;
uint8_t *pccache2;
/*Segments -