147 lines
3.1 KiB
C
147 lines
3.1 KiB
C
/*
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* $Id: proto.h,v 1.2 1993/08/02 17:53:02 mycroft Exp $
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*
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* TBD - need for common typedefs - rethink?
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* TBD - move config include into the source files - this is just expedient
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*/
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#include "config.h"
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#include "nbtypes.h"
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#define TRUE 1
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#define FALSE 0
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#define MDUMP 100 /* TBD - remove */
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#define MAX_FILE_NAME_LEN 128
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#define CRTBASE ((char *)0xb8000)
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#define CHECKPOINT(x) (CRTBASE[0] = x)
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#define nelt(x) (sizeof(x)/sizeof((x)[0]))
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void ENTER(char *); /* remove TBD */
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int IsKbdCharReady(void);
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u_char GetKbdChar(void);
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void HandleKbdAttn(void);
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void KbdWait(int n);
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int bcmp(const void *, const void *, int);
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void volatile exit(int);
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void volatile ExitToBios(void);
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void gateA20(void);
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int getc(void);
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int getchar(void);
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u_short GetMemSize(u_short);
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int gets(char *);
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int ischar(void);
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void longjmp(jmp_buf env, int val);
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void printf( /* const char *, ... */ );
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void putc(int);
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void putchar(int);
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int rand(void);
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void ResetCpu(void);
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int setjmp(jmp_buf env);
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void srand(u_int);
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void StartProg(u_long phyaddr, u_long *args);
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int strlen(const char *);
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char *strncat(char *, const char *, int len);
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char *strncpy(char *, const char *, int len);
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int strcmp(const char *, const char *);
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u_long timer(void);
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/* macros in pio.h, rewritten as in-line functions */
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/* TBD - define addr arg as long - short might result in extra
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bit masking whereas longs simply get plonked down in %edx */
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#undef inb
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#undef outb
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#undef inw
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#undef outw
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#undef inl
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#undef outl
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static inline u_char
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inb(u_short addr) {
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u_char datum;
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asm volatile("inb %1, %0" : "=a" (datum) : "d" (addr));
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return datum;
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}
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static inline void
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outb(u_short addr, u_char datum) {
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asm volatile("outb %0, %1" : : "a" (datum), "d" (addr));
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}
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static inline u_short
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inw(u_short addr) {
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u_short datum;
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asm volatile(".byte 0x66; inl %1, %0" : "=a" (datum) : "d" (addr));
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return datum;
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}
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static inline void
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outw(u_short addr, u_short datum) {
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asm volatile(".byte 0x66; outw %0, %1" : : "a" (datum), "d" (addr));
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}
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static inline u_long
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inl(u_short addr) {
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u_long datum;
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asm volatile("inw %1, %0" : "=a" (datum) : "d" (addr));
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return datum;
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}
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static inline void
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outl(u_short addr, u_long datum) {
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asm volatile("outw %0, %1" : : "a" (datum), "d" (addr));
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}
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#if __GCC__ >= 2
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/* fast versions of bcopy(), bzero() */
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static inline void
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bcopy(const void *from, void *to, int len) {
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/* assumes %es == %ds */
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asm("
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mov %0, %%esi
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mov %1, %%edi
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mov %2, %%ecx
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cld
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rep
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movsb
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" : : "g" (from), "g" (to), "g" (len) : "esi", "edi", "ecx");
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}
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static inline void
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bzero(void *dest, int len) {
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/* assumes %es == %ds */
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asm("
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mov %0, %%edi
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mov %1, %%ecx
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xor %%eax, %%eax
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cld
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rep
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stosb
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" : : "g" (dest), "g" (len) : "edi", "ecx", "eax");
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}
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#else
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static inline void
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bcopy(char *from, char *to, int len)
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{
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while (len-- > 0)
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*to++ = *from++;
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}
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static inline void
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bzero(char *to, int len)
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{
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while (len-- > 0)
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*to++ = '\0';
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}
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#endif
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static inline void PhysBcopy(u_long src, u_long dest, u_long nbytes) {
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bcopy((void *)src, (void *)dest, nbytes);
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}
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static inline void PhysBzero(u_long dest, u_long nbytes) {
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bzero((void *)dest, nbytes);
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}
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