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Added VME emulation to Intel DX4, Pentium and Pentium MMX.

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Temporarily disabled recompilation of CLI and STI.
This commit is contained in:
SarahW 2017-06-30 20:42:19 +01:00
commit 1f33b52451
11 changed files with 259 additions and 62 deletions
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5
src/ibm.h
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@ -244,9 +244,14 @@ uint32_t dr[8];
#define V_FLAG 0x0800
#define NT_FLAG 0x4000
#define VM_FLAG 0x0002 /*In EFLAGS*/
#define VIF_FLAG 0x0008 /*In EFLAGS*/
#define VIP_FLAG 0x0010 /*In EFLAGS*/
#define WP_FLAG 0x10000 /*In CR0*/
#define CR4_VME (1 << 0)
#define CR4_PVI (1 << 1)
#define IOPL ((flags>>12)&3)
#define IOPLp ((!(msw&1)) || (CPL<=IOPL))