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AAI86.H
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C/C++ Source or Header
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1990-02-26
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2KB
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49 lines
#ifndef AAI86_H
#define AAI86_H
/* intel 8086 emulator... */
struct i86_byte_regs
{
unsigned char al, ah, bl, bh, cl, ch, dl, dh;
unsigned int si, di, ds, es;
};
struct i86_word_regs
{
unsigned ax,bx,cx,dx;
unsigned int si, di, ds, es;
};
union i86_regs
{
struct i86_byte_regs b;
struct i86_word_regs w;
};
/* do software int */
i86_sysint(int intno, union i86_regs *s, union i86_regs *d);
void i86_bcopy(void *s, void *d, int bytes); /* copy bytes */
void i86_wcopy(void *s, void *d, int words); /* copy 16-bit-words */
void i86_bzero(void *d, int bytes); /* set some bytes to zero */
void i86_wzero(void *d, int words); /* set some 16-bit-words to zero */
void i86_wstuff(unsigned value,void *d,unsigned words);/* set words to value */
int i86_bsame(void *d, int count); /* how many bytes in a row the same ? */
int i86_wsame(void *d, int count); /* how many 16-bit-words the same? */
int i86_bcontrast(void *s1, void *s2, int count); /* bytes til 1st match? */
int i86_wcontrast(void *s1,void *s2,int count); /* words til 1st match? */
int i86_bcompare(void *s1,void *s2,int count); /* how many bytes match */
int i86_wcompare(void *s1,void *s2,int count); /* how many words match */
void i86_even_copy(void *s, void *d, int bytes); /* copy even # of bytes */
void i86_exchange_bytes(char *s1, char *s2, int count); /* exchange buffers */
void i86_back_bcopy(char *s,char *d,int count); /* copy bytes backwards */
void *i86_norm_ptr(void *ptr); /* fold offset into address */
void *i86_enorm_ptr(void *ptr); /* fold offset into address and force even */
void *i86_make_ptr(int offset, int seg); /* convince C it's a pointer... */
long i86_make_long(int loword, int hiword); /* convince C it's a long */
long i86_ptr_to_long(void *ptr); /* convert segment:offset to linear address */
int i86_ptr_seg(void *ptr); /* return segment portion of pointer */
int i86_ptr_offset(void *ptr); /* return offset portion of pointer */
#endif /* AAI86_H */