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primitive vm86 support

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@57 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-03-29 16:53:14 +00:00
parent fc2b4c4879
commit 851e67a1b4
2 changed files with 117 additions and 18 deletions
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27
linux-user/qemu.h
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@ -33,6 +33,33 @@ struct image_info {
int personality;
};
/* Information about the current linux thread */
struct vm86_saved_state {
uint32_t eax; /* return code */
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t esi;
uint32_t edi;
uint32_t ebp;
uint32_t esp;
uint32_t eflags;
uint32_t eip;
uint16_t cs, ss, ds, es, fs, gs;
};
/* NOTE: we force a big alignment so that the stack stored after is
aligned too */
typedef struct TaskState {
struct TaskState *next;
struct target_vm86plus_struct *target_v86;
struct vm86_saved_state vm86_saved_regs;
int used; /* non zero if used */
uint8_t stack[0];
} __attribute__((aligned(16))) TaskState;
extern TaskState *first_task_state;
int elf_exec(const char *interp_prefix,
const char * filename, char ** argv, char ** envp,
struct target_pt_regs * regs, struct image_info *infop);