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Remove hack in Int 21h AH=38h, revert bad change in _CmdInstall 

git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/branches/UNSTABLE@1078 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Luchezar Georgiev 2004-12-29 19:27:31 +00:00
parent 47137fde93
commit 79be05f804
3 changed files with 12 additions and 26 deletions
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1
docs/history.txt
View File

@ -315,6 +315,7 @@
- set AX = ES after Int 21h/4Ah (undocumented but expected by BRUN45)
(the last 2 changes needed to fix bugs discovered by Michael Devore)
- added Int 2Fh/2Fh processing to set DOS version as per MS-DOS 4.0
- optimised Int 21h/AH=38h Get Country Information, removed cntry hack
* autoexec.bat now single-line for FreeCOM compatibility when EOL=LF
* break.c: check_handle_break() return was undefined if no Ctrl-break
* config.sys: all commands removed as they were close to defaults

4
kernel/config.c
View File

@ -2073,8 +2073,8 @@ STATIC void _CmdInstall(PCStr p, int mode)
if (len > sizeof args.ctBuffer - 2)
len = sizeof args.ctBuffer - 2; /* trim too long line */
args.ctCount = (UBYTE)len;
args.ctBuffer[len-2] = '\r';
args.ctBuffer[len-1] = '\0';
args.ctBuffer[len] = '\r';
args.ctBuffer[len+1] = '\0';
memcpy(args.ctBuffer, p, len);
set_strategy(mode);

33
kernel/inthndlr.c
View File

@ -106,8 +106,8 @@ VOID ASMCFUNC int21_syscall(iregs FAR * irp)
irp->DH = version_flags; /* bit3:runs in ROM,bit 4: runs in HMA */
break;
case 0x03: /* DOS 7 does not set AL */
case 0x07: /* neither here */
/* case 0x03: */ /* DOS 7 does not set AL */
/* case 0x07: */ /* neither here */
default: /* set AL=0xFF as error, NOT carry */
irp->AL = 0xff;
@ -124,10 +124,8 @@ VOID ASMCFUNC int21_syscall(iregs FAR * irp)
case 0xfd:
bDumpRdWrParms = !bDumpRdWrParms;
break;
#endif
/* Toggle DOS-C syscall trace dump */
#ifdef DEBUG
case 0xfe:
bDumpRegs = !bDumpRegs;
break;
@ -596,7 +594,6 @@ dispatch:
default:
#ifdef DEBUG
printf("Unsupported INT21 AH = 0x%x, AL = 0x%x.\n", lr.AH, lr.AL);
#endif
/* Fall through. */
/* CP/M compatibility functions */
@ -608,6 +605,7 @@ dispatch:
case 0x61:
#endif
case 0x6b:
#endif
lr.AL = 0;
break;
@ -731,10 +729,9 @@ dispatch:
UBYTE FAR *retp = MK_FP(r->cs, r->ip);
if (retp[0] == 0x3d && /* cmp ax, xxyy */
(retp[3] == 0x75 || retp[3] == 0x74)) /* je/jne error */
retp[3] == 0x74) /* jne error */
{
lr.AL = retp[1];
lr.AH = retp[2];
lr.AX = *(UWORD FAR *)&retp[1];
}
#if TOM /* Disable the much rarer case to save code size. The only MS-DOS
* utility featuring it is DOSKEY, and FreeCom almost replaces it
@ -836,30 +833,18 @@ dispatch:
/* Get/Set Country Info */
case 0x38:
{
UWORD cntry = lr.AL;
if (cntry == 0xff)
cntry = lr.BX;
if (lr.AL != 0xff)
lr.BX = lr.AL;
if (0xffff == lr.DX)
{
/* Set Country Code */
rc = DosSetCountry(cntry);
rc = DosSetCountry(lr.BX);
}
else
{
if (cntry == 0)
cntry--;
/* Get Country Information */
rc = DosGetCountryInformation(cntry, FP_DS_DX);
if (rc >= SUCCESS)
{
/* HACK FIXME */
if (cntry == (UWORD) - 1)
cntry = 1;
/* END OF HACK */
lr.AX = lr.BX = cntry;
}
rc = DosGetCountryInformation(lr.BX ? lr.BX : NLS_DEFAULT, FP_DS_DX);
}
goto short_check;
}