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/* Copyright (C) 1996 Robert de Bath <robert@mayday.compulink.co.uk>
* This file is part of the Linux-8086 C library and is distributed
* under the GNU Library General Public License.
*/
#if !__FIRST_ARG_IN_AX__
#ifdef __AS386_16__
#ifdef __STANDALONE__
#include <bios.h>
#include <errno.h>
int errno;
#ifdef L_bios_putch
void (*__smart_putch)() = 0;
putch(c)
int c;
{
static int col = 0;
if (__smart_putch)
(*__smart_putch)(c);
else if (c&0xE0) {
col++;
asm_putc(c);
}
else switch(c)
{
case '\t':
do putch(' '); while(col&7);
break;
case '\n':
asm_putc('\r');
case '\r':
col = 0;
asm_putc(c);
break;
case '\f':
col = 0;
#asm
mov ah,#$0F
int $10
mov ah,#$00
int $10
#endasm
break;
}
}
static asm_putc(c)
{
#asm
#if !__FIRST_ARG_IN_AX__
mov bx,sp
mov ax,[bx+2]
#endif
mov ah,#$0E
mov bx,#7
int $10
#endasm
}
#endif
/****************************************************************************/
#ifdef L_bios_getch
getch()
{
#asm
xor ax,ax
int $16
#endasm
}
#endif
/****************************************************************************/
#ifdef L_bios_kbhit
kbhit()
{
#asm
mov ah,#1
int $16
jz nokey
cmp ax,#0
jnz dort
mov ax,#3
dort:
ret
nokey:
xor ax,ax
#endasm
}
#endif
/****************************************************************************/
#ifdef L_bios_cputs
cputs(str)
char * str;
{
while(*str) putch(*str++);
}
#endif
/****************************************************************************/
#ifdef L_bios_getche
getche()
{
static char linebuf[80];
static int nextc = 0, endc=0;
int rv;
if (nextc >= endc)
{
endc = bios_readline(linebuf, sizeof(linebuf));
nextc= 0;
}
if (endc <= nextc) return 3;
rv = linebuf[endc++];
if (endc == nextc) return '\r';
return rv;
}
#endif
/****************************************************************************/
#ifdef L_bios_gotoxy
static gotoxy(x,y)
{
#asm
#if __FIRST_ARG_IN_AX__
mov bx,sp
mov dl,al
mov ax,[bx+2]
mov dh,al
#else
mov bx,sp
mov ax,[bx+4]
mov dh,al
mov ax,[bx+2]
mov dl,al
#endif
mov ah,#$02
mov bx,#7
int $10
#endasm
}
#endif
/****************************************************************************/
#ifdef L_bios_rdline
bios_rdline(buf, len)
char * buf;
int len;
{
int ch;
int pos=0;
if( len < 0 ) { errno = EINVAL; return -1; }
if( len == 0 )
{
if( kbhit() == 0 ) return 0;
errno = EINTR;
return -1;
}
if( len == 1 )
{
buf[0]=((ch=getch())&0xFF?ch&0xFF:((ch>>8)&0xFF|0x80));
return 1;
}
for(ch=0;;)
{
if(ch != '\003')
{
ch = getch();
if( pos == 0 && (ch&0xFF) == 0 )
{
buf[0] = ((ch>>8)|0x80);
return 1;
}
ch &= 0x7F;
}
if( ch == '\r' )
{
putch('\n');
buf[pos++] = '\n';
return pos;
}
if( ch >= ' ' && ch != 0x7F && pos < len-1)
putch(buf[pos++] = ch);
else if( (ch == '\003' || ch == '\b') && pos > 0 )
{
putch('\b'); putch(' '); putch('\b');
pos--;
}
else if( ch == '\003' )
return 0;
else
putch('\007');
}
}
#endif
/****************************************************************************/
#endif
#endif
#endif
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