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Fully implemented Direct Console Input.

This commit is contained in:
Ove Kaaven 1999-03-14 12:13:43 +00:00 committed by Alexandre Julliard
parent 88e651dac3
commit 8f2fd39108
1 changed files with 26 additions and 5 deletions
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31
msdos/int21.c
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@ -1170,13 +1170,34 @@ void WINAPI DOS3Call( CONTEXT *context )
break;
case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
TRACE(int21, "Direct Console Input/Output\n");
if (DL_reg(context) == 0xff) {
FIXME(int21,"Direct Console Input should not block\n");
AL_reg(context) = CONSOLE_GetCharacter();
FL_reg(context) &= ~0x40; /* clear ZF */
} else
static char scan = 0;
TRACE(int21, "Direct Console Input\n");
if (scan) {
/* return pending scancode */
AL_reg(context) = scan;
FL_reg(context) &= ~0x40; /* clear ZF */
scan = 0;
} else {
char ascii;
if (CONSOLE_CheckForKeystroke(&scan,&ascii)) {
CONSOLE_GetKeystroke(&scan,&ascii);
/* return ASCII code */
AL_reg(context) = ascii;
FL_reg(context) &= ~0x40; /* clear ZF */
/* return scan code on next call only if ascii==0 */
if (ascii) scan = 0;
} else {
/* nothing pending, clear everything */
AL_reg(context) = 0;
FL_reg(context) |= 0x40; /* set ZF */
scan = 0; /* just in case */
}
}
} else {
TRACE(int21, "Direct Console Output\n");
CONSOLE_Write(DL_reg(context), 0, 0, 0);
}
break;
case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */