tyler.durden/kernel
1
0
Fork 0
mirror of https://github.com/FDOS/kernel.git synced 2025-07-24 06:14:29 +02:00
Code Issues Packages Projects Releases Wiki Activity

Fix Int 21h AH=38h bugs noted by Arkady

Browse Source 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/branches/UNSTABLE@1079 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Luchezar Georgiev 2004-12-30 15:59:38 +00:00
parent 79be05f804
commit c93f67a15b
1 changed files with 10 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
kernel/inthndlr.c
View File

@ -728,8 +728,7 @@ dispatch:
*/
UBYTE FAR *retp = MK_FP(r->cs, r->ip);
if (retp[0] == 0x3d && /* cmp ax, xxyy */
retp[3] == 0x74) /* jne error */
if (retp[0] == 0x3d) /* cmp ax, xxyy */
{
lr.AX = *(UWORD FAR *)&retp[1];
}
@ -833,18 +832,18 @@ dispatch:
/* Get/Set Country Info */
case 0x38:
{
if (lr.AL != 0xff)
lr.BX = lr.AL;
UWORD ccode = lr.AL != 0xFF ? lr.AL : lr.BX;
if (0xffff == lr.DX)
{
/* Set Country Code */
rc = DosSetCountry(lr.BX);
rc = DosSetCountry(ccode);
}
else
{
/* Get Country Information */
rc = DosGetCountryInformation(lr.BX ? lr.BX : NLS_DEFAULT, FP_DS_DX);
rc = DosGetCountryInformation(ccode ? ccode : NLS_DEFAULT, FP_DS_DX);
if (rc >= SUCCESS)
lr.BX = ccode ? ccode : nlsPackageHardcoded.cntry;
}
goto short_check;
}
@ -959,7 +958,6 @@ dispatch:
DosMemLargest(&lr.BX);
if (DosMemCheck() != SUCCESS)
panic("MCB chain corrupted");
goto error_exit;
}
lr.AX++; /* DosMemAlloc() returns seg of MCB rather than data */
break;
@ -970,7 +968,6 @@ dispatch:
{
if (DosMemCheck() != SUCCESS)
panic("MCB chain corrupted");
goto error_exit;
}
break;
@ -990,7 +987,6 @@ dispatch:
#endif
if (DosMemCheck() != SUCCESS)
panic("after 4a: MCB chain corrupted");
goto error_exit;
}
lr.AX = lr.ES; /* Undocumented MS-DOS behaviour expected by BRUN45! */
break;
@ -1118,8 +1114,7 @@ dispatch:
switch (lr.AL)
{
case 0x00:
lr.AL = mem_access_mode;
lr.AH = 0;
lr.AX = mem_access_mode;
break;
case 0x01:
@ -1204,9 +1199,7 @@ dispatch:
case 0x09:
rc = remote_printredir(lr.DX, Int21AX);
CLEAR_CARRY_FLAG();
if (rc != SUCCESS)
goto error_exit;
break;
goto short_check;
/* Set Extended Error */
case 0x0a:
@ -1315,7 +1308,8 @@ dispatch:
lr.DS = FP_SEG(p);
lr.SI = FP_OFF(p);
}
lr.AL = 0x00;
else
lr.AL = 0;
#if 0
/* not really supported, but will pass. */