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#ifndef ETHERBOOT_SETJMP_H
#define ETHERBOOT_SETJMP_H
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#include <realmode.h>
/** A jump buffer */
typedef struct {
uint32_t retaddr;
uint32_t ebx;
uint32_t esp;
uint32_t ebp;
uint32_t esi;
uint32_t edi;
} jmp_buf[1];
/** A real-mode-extended jump buffer */
typedef struct {
jmp_buf env;
uint16_t rm_ss;
uint16_t rm_sp;
} rmjmp_buf[1];
extern int __asmcall setjmp ( jmp_buf env );
extern void __asmcall longjmp ( jmp_buf env, int val );
#define rmsetjmp( _env ) ( { \
(_env)->rm_ss = rm_ss; \
(_env)->rm_sp = rm_sp; \
setjmp ( (_env)->env ); } ) \
#define rmlongjmp( _env, _val ) do { \
rm_ss = (_env)->rm_ss; \
rm_sp = (_env)->rm_sp; \
longjmp ( (_env)->env, (_val) ); \
} while ( 0 )
#endif /* ETHERBOOT_SETJMP_H */
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