GLOBAL VOID
DAA()
{
IU8 temp_al;
temp_al = GET_AL();
if ( (temp_al & 0xf) > 9 || GET_AF() )
{
temp_al += 6;
SET_AF(1);
}
if ( GET_AL() > 0x99 || GET_CF() )
{
temp_al += 0x60;
SET_CF(1);
}
SET_AL(temp_al);
/* set ZF,SF,PF according to result */
SET_ZF(temp_al == 0);
SET_SF((temp_al & BIT7_MASK) != 0);
SET_PF(pf_table[temp_al]);
/* Set undefined flag(s) */
#ifdef SET_UNDEFINED_FLAG
SET_OF(UNDEFINED_FLAG);
#endif
}
GLOBAL VOID
CMPXCHG8
IFN2(
IU32 *, pop1, /* pntr to dst/lsrc operand */
IU32, op2 /* rsrc operand */
)
{
/*
First do comparision and generate flags.
*/
CMP((IU32)GET_AL(), *pop1, 8);
/*
Then swap data as required.
*/
if ( GET_ZF() ) /* ie iff AL == op1 */
{
*pop1 = op2;
}
else
{
SET_AL(*pop1);
}
}
/**********************************************************************
* EMS_Ioctl_Handler
*
* Handler for interrupt 21h IOCTL routine for device "EMMXXXX0".
*/
void WINAPI EMS_Ioctl_Handler( CONTEXT86 *context )
{
assert(AH_reg(context) == 0x44);
switch AL_reg(context) {
case 0x00: /* IOCTL - GET DEVICE INFORMATION */
RESET_CFLAG(context); /* operation was successful */
SET_DX( context, 0x4080 ); /* bit 14 (support ioctl read) and
* bit 7 (is_device) */
break;
case 0x02: /* EMS - GET MEMORY MANAGER INFORMATION */
/*
* This is what is called "Windows Global EMM Import Specification".
* Undocumented of course! Supports three requests:
* GET API ENTRY POINT
* GET EMM IMPORT STRUCTURE ADDRESS
* GET MEMORY MANAGER VERSION
*/
INT_BARF(context,0x21);
break;
case 0x07: /* IOCTL - GET OUTPUT STATUS */
RESET_CFLAG(context); /* operation was successful */
SET_AL( context, 0xff ); /* device is ready */
break;
default:
INT_BARF(context,0x21);
break;
}
}
GLOBAL VOID
AAA()
{
if ( (GET_AL() & 0xf) > 9 || GET_AF() )
{
SET_AX(GET_AX() + 6);
SET_AH(GET_AH() + 1);
SET_CF(1);
SET_AF(1);
}
else
{
SET_CF(0);
SET_AF(0);
}
SET_AL(GET_AL() & 0xf);
/* Set undefined flag(s) */
#ifdef SET_UNDEFINED_FLAG
SET_OF(UNDEFINED_FLAG);
SET_SF(UNDEFINED_FLAG);
SET_ZF(UNDEFINED_FLAG);
SET_PF(UNDEFINED_FLAG);
#endif
}
/***********************************************************************
* DOSVM_Int5cHandler
*
* Called from NetBIOSCall16.
*/
static void WINAPI DOSVM_Int5cHandler( CONTEXT86 *context )
{
BYTE* ptr;
ptr = MapSL( MAKESEGPTR(context->SegEs,BX_reg(context)) );
FIXME("(%p): command code %02x (ignored)\n",context, *ptr);
*(ptr+0x01) = 0xFB; /* NetBIOS emulator not found */
SET_AL( context, 0xFB );
}
/***********************************************************************
* DOSVM_Int4bHandler
*
*/
static void WINAPI DOSVM_Int4bHandler( CONTEXT86 *context )
{
switch(AH_reg(context))
{
case 0x81: /* Virtual DMA Spec (IBM SCSI interface) */
if(AL_reg(context) != 0x02) /* if not install check */
{
SET_CFLAG(context);
SET_AL( context, 0x0f ); /* function is not implemented */
}
break;
default:
INT_BARF(context, 0x4b);
}
}
/**********************************************************************
* DOSVM_Int1aHandler
*
* Handler for int 1ah.
*/
static void WINAPI DOSVM_Int1aHandler( CONTEXT86 *context )
{
switch(AH_reg(context))
{
case 0x00: /* GET SYSTEM TIME */
{
BIOSDATA *data = DOSVM_BiosData();
SET_CX( context, HIWORD(data->Ticks) );
SET_DX( context, LOWORD(data->Ticks) );
SET_AL( context, 0 ); /* FIXME: midnight flag is unsupported */
TRACE( "GET SYSTEM TIME - ticks=%d\n", data->Ticks );
}
break;
case 0x01: /* SET SYSTEM TIME */
FIXME( "SET SYSTEM TIME - not allowed\n" );
break;
case 0x02: /* GET REAL-TIME CLOCK TIME */
TRACE( "GET REAL-TIME CLOCK TIME\n" );
{
SYSTEMTIME systime;
GetLocalTime( &systime );
SET_CH( context, BIN_TO_BCD(systime.wHour) );
SET_CL( context, BIN_TO_BCD(systime.wMinute) );
SET_DH( context, BIN_TO_BCD(systime.wSecond) );
SET_DL( context, 0 ); /* FIXME: assume no daylight saving */
RESET_CFLAG(context);
}
break;
case 0x03: /* SET REAL-TIME CLOCK TIME */
FIXME( "SET REAL-TIME CLOCK TIME - not allowed\n" );
break;
case 0x04: /* GET REAL-TIME CLOCK DATE */
TRACE( "GET REAL-TIME CLOCK DATE\n" );
{
SYSTEMTIME systime;
GetLocalTime( &systime );
SET_CH( context, BIN_TO_BCD(systime.wYear / 100) );
SET_CL( context, BIN_TO_BCD(systime.wYear % 100) );
SET_DH( context, BIN_TO_BCD(systime.wMonth) );
SET_DL( context, BIN_TO_BCD(systime.wDay) );
RESET_CFLAG(context);
}
break;
case 0x05: /* SET REAL-TIME CLOCK DATE */
FIXME( "SET REAL-TIME CLOCK DATE - not allowed\n" );
break;
case 0x06: /* SET ALARM */
FIXME( "SET ALARM - unimplemented\n" );
break;
case 0x07: /* CANCEL ALARM */
FIXME( "CANCEL ALARM - unimplemented\n" );
break;
case 0x08: /* SET RTC ACTIVATED POWER ON MODE */
case 0x09: /* READ RTC ALARM TIME AND STATUS */
case 0x0a: /* READ SYSTEM-TIMER DAY COUNTER */
case 0x0b: /* SET SYSTEM-TIMER DAY COUNTER */
case 0x0c: /* SET RTC DATE/TIME ACTIVATED POWER-ON MODE */
case 0x0d: /* RESET RTC DATE/TIME ACTIVATED POWER-ON MODE */
case 0x0e: /* GET RTC DATE/TIME ALARM AND STATUS */
case 0x0f: /* INITIALIZE REAL-TIME CLOCK */
INT_BARF( context, 0x1a );
break;
case 0xb0:
if (CX_reg(context) == 0x4d52 &&
DX_reg(context) == 0x4349 &&
AL_reg(context) == 0x01)
{
/*
* Microsoft Real-Time Compression Interface (MRCI).
* Ignoring this call indicates MRCI is not supported.
*/
TRACE( "Microsoft Real-Time Compression Interface - not supported\n" );
}
else
{
INT_BARF(context, 0x1a);
}
break;
default:
INT_BARF( context, 0x1a );
}
}
/**********************************************************************
* DOSVM_Int67Handler (WINEDOS16.203)
*
* Handler for interrupt 67h EMS routines.
*/
void WINAPI DOSVM_Int67Handler( CONTEXT86 *context )
{
switch AH_reg(context) {
case 0x40: /* EMS - GET MANAGER STATUS */
SET_AH( context, 0 ); /* status: ok */
break;
case 0x41: /* EMS - GET PAGE FRAME SEGMENT */
EMS_init();
SET_BX( context, EMS_record->frame_selector ); /* segment of page frame */
SET_AH( context, 0 ); /* status: ok */
break;
case 0x42: /* EMS - GET NUMBER OF PAGES */
EMS_init();
/* unallocated 16k pages */
SET_BX( context, EMS_MAX_PAGES - EMS_record->used_pages );
/* total number of 16k pages */
SET_DX( context, EMS_MAX_PAGES );
/* status: ok */
SET_AH( context, 0 );
break;
case 0x43: /* EMS - GET HANDLE AND ALLOCATE MEMORY */
EMS_init();
EMS_alloc(context);
break;
case 0x44: /* EMS - MAP MEMORY */
EMS_init();
SET_AH( context, EMS_map( AL_reg(context), DX_reg(context), BX_reg(context) ) );
break;
case 0x45: /* EMS - RELEASE HANDLE AND MEMORY */
EMS_init();
EMS_free(context);
break;
case 0x46: /* EMS - GET EMM VERSION */
SET_AL( context, 0x40 ); /* version 4.0 */
SET_AH( context, 0 ); /* status: ok */
break;
case 0x47: /* EMS - SAVE MAPPING CONTEXT */
EMS_init();
EMS_save_context(context);
break;
case 0x48: /* EMS - RESTORE MAPPING CONTEXT */
EMS_init();
EMS_restore_context(context);
break;
case 0x49: /* EMS - reserved - GET I/O PORT ADDRESSES */
case 0x4a: /* EMS - reserved - GET TRANSLATION ARRAY */
INT_BARF(context,0x67);
break;
case 0x4b: /* EMS - GET NUMBER OF EMM HANDLES */
SET_BX( context, EMS_MAX_HANDLES ); /* EMM handles */
SET_AH( context, 0 ); /* status: ok */
break;
case 0x4c: /* EMS - GET PAGES OWNED BY HANDLE */
case 0x4d: /* EMS - GET PAGES FOR ALL HANDLES */
case 0x4e: /* EMS - GET OR SET PAGE MAP */
case 0x4f: /* EMS 4.0 - GET/SET PARTIAL PAGE MAP */
INT_BARF(context,0x67);
break;
case 0x50: /* EMS 4.0 - MAP/UNMAP MULTIPLE HANDLE PAGES */
EMS_init();
EMS_map_multiple(context);
break;
case 0x51: /* EMS 4.0 - REALLOCATE PAGES */
case 0x52: /* EMS 4.0 - GET/SET HANDLE ATTRIBUTES */
INT_BARF(context,0x67);
break;
case 0x53: /* EMS 4.0 - GET/SET HANDLE NAME */
EMS_init();
EMS_access_name(context);
break;
case 0x54: /* EMS 4.0 - GET HANDLE DIRECTORY */
case 0x55: /* EMS 4.0 - ALTER PAGE MAP AND JUMP */
case 0x56: /* EMS 4.0 - ALTER PAGE MAP AND CALL */
case 0x57: /* EMS 4.0 - MOVE/EXCHANGE MEMORY REGION */
case 0x58: /* EMS 4.0 - GET MAPPABLE PHYSICAL ADDRESS ARRAY */
INT_BARF(context,0x67);
break;
case 0x59: /* EMS 4.0 - GET EXPANDED MEMORY HARDWARE INFORMATION */
if(AL_reg(context) == 0x01) {
EMS_init();
/* unallocated raw pages */
SET_BX( context, EMS_MAX_PAGES - EMS_record->used_pages );
/* total number raw pages */
SET_DX( context, EMS_MAX_PAGES );
/* status: ok */
SET_AH( context, 0 );
} else
INT_BARF(context,0x67);
break;
case 0x5a: /* EMS 4.0 - ALLOCATE STANDARD/RAW PAGES */
case 0x5b: /* EMS 4.0 - ALTERNATE MAP REGISTER SET */
case 0x5c: /* EMS 4.0 - PREPARE EXPANDED MEMORY HARDWARE FOR WARM BOOT */
case 0x5d: /* EMS 4.0 - ENABLE/DISABLE OS FUNCTION SET FUNCTIONS */
INT_BARF(context,0x67);
break;
case 0xde: /* Virtual Control Program Interface (VCPI) */
if(AL_reg(context) == 0x00) {
/*
* VCPI INSTALLATION CHECK
* (AH_reg() != 0) means VCPI is not present
*/
TRACE("- VCPI installation check\n");
return;
} else
INT_BARF(context,0x67);
break;
default:
INT_BARF(context,0x67);
}
}
/**********************************************************************
* DOSVM_Int10Handler
*
* Handler for int 10h (video).
*
* NOTE:
* Most INT 10 functions for text-mode, CGA, EGA, and VGA cards
* are present in this list. (SVGA and XGA are not) That is not
* to say that all these functions should be supported, but if
* anyone is brain-damaged enough to want to emulate one of these
* beasts then this should get you started.
*
* NOTE:
* Several common graphical extensions used by Microsoft hook
* off of here. I have *not* added them to this list (yet). They
* include:
*
* MSHERC.COM - More functionality for Hercules cards.
* EGA.SYS (also MOUSE.COM) - More for EGA cards.
*
* Yes, MS also added this support into their mouse driver. Don't
* ask me, I don't work for them.
*
* Joseph Pranevich - 9/98
*
* Jess Haas 2/99
* Added support for Vesa. It is not complete but is a start.
* NOTE: Im not sure if I did all this right or if any of it works.
* Currently I don't have a program that uses Vesa that actually gets far
* enough without crashing to do vesa stuff.
*
* Added additional vga graphic support - 3/99
*/
void WINAPI DOSVM_Int10Handler( CONTEXT *context )
{
BIOSDATA *data = DOSVM_BiosData();
INT10_InitializeVideoMode( data );
switch(AH_reg(context)) {
case 0x00: /* SET VIDEO MODE */
TRACE( "Set VGA video mode %02x\n", AL_reg(context) );
if (!INT10_SetVideoMode( data, AL_reg(context) ))
FIXME( "Unsupported VGA video mode requested: %#x\n",
AL_reg(context) );
break;
case 0x01: /* SET CURSOR SHAPE */
TRACE("Set Cursor Shape start %d end %d options %d\n",
CH_reg(context) & 0x1f,
CL_reg(context) & 0x1f,
CH_reg(context) & 0xe0);
data->VideoCursorType = CX_reg(context); /* direct copy */
VGA_SetCursorShape(CH_reg(context), CL_reg(context));
break;
case 0x02: /* SET CURSOR POSITION */
/* BH = Page Number */ /* Not supported */
/* DH = Row */ /* 0 is left */
/* DL = Column */ /* 0 is top */
INT10_SetCursorPos(data,BH_reg(context),DL_reg(context),DH_reg(context));
if (BH_reg(context))
{
FIXME("Set Cursor Position: Cannot set to page %d\n",
BH_reg(context));
}
else
{
VGA_SetCursorPos(DL_reg(context), DH_reg(context));
TRACE("Set Cursor Position: %d/%d\n", DL_reg(context),
DH_reg(context));
}
break;
case 0x03: /* GET CURSOR POSITION AND SIZE */
{
unsigned row, col;
TRACE("Get cursor position and size (page %d)\n", BH_reg(context));
SET_CX( context, data->VideoCursorType );
INT10_GetCursorPos(data,BH_reg(context),&col,&row);
SET_DH( context, row );
SET_DL( context, col );
TRACE("Cursor Position: %d/%d\n", DL_reg(context), DH_reg(context));
}
break;
case 0x04: /* READ LIGHT PEN POSITION */
FIXME("Read Light Pen Position - Not Supported\n");
SET_AH( context, 0x00 ); /* Not down */
break;
case 0x05: /* SELECT ACTIVE DISPLAY PAGE */
FIXME("Select Active Display Page (%d) - Not Supported\n", AL_reg(context));
data->VideoCurPage = AL_reg(context);
break;
case 0x06: /* SCROLL UP WINDOW */
/* AL = Lines to scroll */
/* BH = Attribute */
/* CH,CL = row, col upper-left */
/* DH,DL = row, col lower-right */
TRACE("Scroll Up Window %d\n", AL_reg(context));
if (AL_reg(context) == 0)
VGA_ClearText( CH_reg(context), CL_reg(context),
DH_reg(context), DL_reg(context),
BH_reg(context) );
else
VGA_ScrollUpText( CH_reg(context), CL_reg(context),
DH_reg(context), DL_reg(context),
AL_reg(context), BH_reg(context) );
break;
case 0x07: /* SCROLL DOWN WINDOW */
/* AL = Lines to scroll */
/* BH = Attribute */
/* CH,CL = row, col upper-left */
/* DH,DL = row, col lower-right */
TRACE("Scroll Down Window %d\n", AL_reg(context));
if (AL_reg(context) == 0)
VGA_ClearText( CH_reg(context), CL_reg(context),
DH_reg(context), DL_reg(context),
BH_reg(context) );
else
VGA_ScrollDownText( CH_reg(context), CL_reg(context),
DH_reg(context), DL_reg(context),
AL_reg(context), BH_reg(context) );
break;
case 0x08: /* READ CHARACTER AND ATTRIBUTE AT CURSOR POSITION */
{
if (BH_reg(context)) /* Write to different page */
{
FIXME("Read character and attribute at cursor position -"
" Can't read from non-0 page\n");
SET_AL( context, ' ' ); /* That page is blank */
SET_AH( context, 7 );
}
else
{
BYTE ascii, attr;
TRACE("Read Character and Attribute at Cursor Position\n");
VGA_GetCharacterAtCursor(&ascii, &attr);
SET_AL( context, ascii );
SET_AH( context, attr );
}
}
break;
case 0x09: /* WRITE CHARACTER AND ATTRIBUTE AT CURSOR POSITION */
case 0x0a: /* WRITE CHARACTER ONLY AT CURSOR POSITION */
/* AL = Character to display. */
/* BH = Page Number */ /* We can't write to non-0 pages, yet. */
/* BL = Attribute / Color */
/* CX = Times to Write Char */
/* Note here that the cursor is not advanced. */
{
unsigned row, col;
INT10_GetCursorPos(data,BH_reg(context),&col,&row);
VGA_WriteChars(col, row,
AL_reg(context),
(AH_reg(context) == 0x09) ? BL_reg(context) : -1,
CX_reg(context));
if (CX_reg(context) > 1)
TRACE("Write Character%s at Cursor Position (Rep. %d): %c\n",
(AH_reg(context) == 0x09) ? " and Attribute" : "",
CX_reg(context), AL_reg(context));
else
TRACE("Write Character%s at Cursor Position: %c\n",
(AH_reg(context) == 0x09) ? " and Attribute" : "",
AL_reg(context));
}
break;
case 0x0b:
switch BH_reg(context) {
case 0x00: /* SET BACKGROUND/BORDER COLOR */
/* In text modes, this sets only the border... */
/* According to the interrupt list and one of my books. */
/* Funny though that Beyond Zork seems to indicate that it
also sets up the default background attributes for clears
and scrolls... */
/* Bear in mind here that we do not want to change,
apparently, the foreground or attribute of the background
with this call, so we should check first to see what the
foreground already is... FIXME */
/* For CGA modes, background color change is the same as writing
to I/O address 0x3d9 bit 4 */
if(data->VideoMode >= 4 && data->VideoMode <= 6)
{
VGA_SetBright((BL_reg(context) & 0x10) != 0);
VGA_UpdatePalette();
}
else FIXME("Set Background/Border Color: %d/%d\n",
BH_reg(context), BL_reg(context));
break;
case 0x01: /* SET PALETTE */
/* For CGA modes, palette color change is the same as writing
to I/O address 0x3d9 bit 5 */
if(data->VideoMode >= 4 && data->VideoMode <= 6)
{
VGA_SetPaletteIndex(BL_reg(context) & 1);
VGA_UpdatePalette();
}
else FIXME("Set Palette - Not Supported: %02X\n", BL_reg(context));
break;
default:
FIXME("INT 10 AH = 0x0b BH = 0x%x - Unknown\n",
BH_reg(context));
break;
}
break;
case 0x0c: /* WRITE GRAPHICS PIXEL */
/* Only supported in CGA mode for now */
if(data->VideoMode >= 4 && data->VideoMode <= 6)
{
VGA_WritePixel(AL_reg(context), BH_reg(context), CX_reg(context), DX_reg(context));
}
else FIXME("Write pixel not implemented for current mode\n");
break;
case 0x0d: /* READ GRAPHICS PIXEL */
/* Not in graphics mode, can ignore w/o error */
FIXME("Read Graphics Pixel - Not Supported\n");
break;
case 0x0e: /* TELETYPE OUTPUT */
TRACE("Teletype Output\n");
DOSVM_PutChar(AL_reg(context));
break;
case 0x0f: /* GET CURRENT VIDEO MODE */
TRACE("Get current video mode: -> mode %d, columns %d\n", data->VideoMode, data->VideoColumns);
/* Note: This should not be a constant value. */
SET_AL( context, data->VideoMode );
SET_AH( context, data->VideoColumns );
SET_BH( context, 0 ); /* Display page 0 */
break;
case 0x10:
switch AL_reg(context) {
case 0x00: /* SET SINGLE PALETTE REGISTER - A.C. */
TRACE("Set Single Palette Register - Reg 0x0%x Value 0x0%x\n",
BL_reg(context),BH_reg(context));
/* BH is the value BL is the register */
VGA_SetColor16((int)BL_reg(context),(int)BH_reg(context));
break;
case 0x01: /* SET BORDER (OVERSCAN) */
/* Text terminals have no overscan */
/* I'm setting it anyway. - A.C. */
TRACE("Set Border (Overscan) - Ignored but set.\n");
VGA_SetColor16(16,(int)BH_reg(context));
break;
case 0x02: /* SET ALL PALETTE REGISTERS - A.C.*/
TRACE("Set all palette registers\n");
/* ES:DX points to a 17 byte table of colors */
/* No return data listed */
/* I'll have to update my table and the default palette */
VGA_Set16Palette(CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edx));
break;
case 0x03: /* TOGGLE INTENSITY/BLINKING BIT */
FIXME("Toggle Intensity/Blinking Bit - Not Supported\n");
break;
case 0x07: /* GET INDIVIDUAL PALETTE REGISTER - A.C.*/
TRACE("Get Individual Palette Register 0x0%x\n",BL_reg(context));
/* BL is register to read [ 0-15 ] BH is return value */
SET_BH( context, VGA_GetColor16((int)BL_reg(context)) );
break;
case 0x08: /* READ OVERSCAN (BORDER COLOR) REGISTER - A.C. */
TRACE("Read Overscan (Border Color) Register\n");
SET_BH( context, VGA_GetColor16(16) );
break;
case 0x09: /* READ ALL PALETTE REGISTERS AND OVERSCAN REGISTER - A.C.*/
TRACE("Read All Palette Registers and Overscan Register\n");
/* ES:DX points to a 17 byte table where the results */
/* of this call should be stored. */
VGA_Get16Palette(CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edx));
break;
case 0x10: /* SET INDIVIDUAL DAC REGISTER */
{
PALETTEENTRY paldat;
TRACE("Set Individual DAC register\n");
paldat.peRed = DH_reg(context);
paldat.peGreen = CH_reg(context);
paldat.peBlue = CL_reg(context);
paldat.peFlags = 0;
VGA_SetPalette(&paldat,BX_reg(context)&0xFF,1);
}
break;
case 0x12: /* SET BLOCK OF DAC REGISTERS */
{
int i;
PALETTEENTRY paldat;
BYTE *pt;
TRACE("Set Block of DAC registers\n");
pt = CTX_SEG_OFF_TO_LIN(context,context->SegEs,context->Edx);
for (i=0;i<CX_reg(context);i++)
{
paldat.peRed = (*(pt+i*3+0)) << 2;
paldat.peGreen = (*(pt+i*3+1)) << 2;
paldat.peBlue = (*(pt+i*3+2)) << 2;
paldat.peFlags = 0;
VGA_SetPalette(&paldat,(BX_reg(context)+i)&0xFF,1);
}
}
break;
case 0x13: /* SELECT VIDEO DAC COLOR PAGE */
FIXME("Select video DAC color page - Not Supported\n");
break;
case 0x15: /* READ INDIVIDUAL DAC REGISTER */
FIXME("Read individual DAC register - Not Supported\n");
break;
case 0x17: /* READ BLOCK OF DAC REGISTERS */
FIXME("Read block of DAC registers - Not Supported\n");
break;
case 0x18: /* SET PEL MASK */
FIXME("Set PEL mask - Not Supported\n");
break;
case 0x19: /* READ PEL MASK */
FIXME("Read PEL mask - Not Supported\n");
break;
case 0x1a: /* GET VIDEO DAC COLOR PAGE STATE */
FIXME("Get video DAC color page state - Not Supported\n");
break;
case 0x1b: /* PERFORM GRAY-SCALE SUMMING */
FIXME("Perform Gray-scale summing - Not Supported\n");
break;
default:
FIXME("INT 10 AH = 0x10 AL = 0x%x - Unknown\n",
AL_reg(context));
break;
}
break;
case 0x11: /* TEXT MODE CHARGEN */
/* Note that second subfunction is *almost* identical. */
/* See INTERRUPT.A for details. */
switch AL_reg(context) {
case 0x00: /* LOAD USER SPECIFIED PATTERNS */
case 0x10:
FIXME("Load User Specified Patterns - Not Supported\n");
break;
case 0x01: /* LOAD ROM MONOCHROME PATTERNS */
case 0x11:
FIXME("Load ROM Monochrome Patterns - Not Supported\n");
break;
case 0x02: /* LOAD ROM 8x8 DOUBLE-DOT PATTERNS */
case 0x12:
FIXME(
"Load ROM 8x8 Double Dot Patterns - Not Supported\n");
break;
case 0x03: /* SET BLOCK SPECIFIER */
FIXME("Set Block Specifier - Not Supported\n");
break;
case 0x04: /* LOAD ROM 8x16 CHARACTER SET */
case 0x14:
FIXME("Load ROM 8x16 Character Set - Not Supported\n");
break;
case 0x20: /* SET USER 8x16 GRAPHICS CHARS */
FIXME("Set User 8x16 Graphics Chars - Not Supported\n");
break;
case 0x21: /* SET USER GRAPICS CHARACTERS */
FIXME("Set User Graphics Characters - Not Supported\n");
break;
case 0x22: /* SET ROM 8x14 GRAPHICS CHARS */
FIXME("Set ROM 8x14 Graphics Chars - Not Supported\n");
break;
case 0x23: /* SET ROM 8x8 DBL DOT CHARS */
FIXME(
"Set ROM 8x8 Dbl Dot Chars (Graphics) - Not Supported\n");
break;
case 0x24: /* LOAD 8x16 GRAPHIC CHARS */
FIXME("Load 8x16 Graphic Chars - Not Supported\n");
break;
case 0x30: /* GET FONT INFORMATION */
FIXME("Get Font Information - Not Supported\n");
break;
default:
FIXME("INT 10 AH = 0x11 AL = 0x%x - Unknown\n",
AL_reg(context));
break;
}
break;
case 0x12: /* ALTERNATE FUNCTION SELECT */
switch BL_reg(context) {
case 0x10: /* GET EGA INFO */
TRACE("EGA info requested\n");
SET_BH( context, 0x00 ); /* Color screen */
SET_BL( context, data->ModeOptions >> 5 ); /* EGA memory size */
SET_CX( context, data->FeatureBitsSwitches );
break;
case 0x20: /* ALTERNATE PRTSC */
FIXME("Install Alternate Print Screen - Not Supported\n");
break;
case 0x30: /* SELECT VERTICAL RESOLUTION */
FIXME("Select vertical resolution - not supported\n");
break;
case 0x31: /* ENABLE/DISABLE DEFAULT PALETTE LOADING */
FIXME("Default palette loading - not supported\n");
data->VGASettings =
(data->VGASettings & 0xf7) |
((AL_reg(context) == 1) << 3);
break;
case 0x32: /* ENABLE/DISABLE VIDEO ADDRESSING */
FIXME("Video Addressing - Not Supported\n");
break;
case 0x33: /* ENABLE/DISABLE GRAY SCALE SUMMING */
FIXME("Gray Scale Summing - Not Supported\n");
break;
case 0x34: /* ENABLE/DISABLE CURSOR EMULATION */
TRACE("Set cursor emulation to %d\n", AL_reg(context));
data->ModeOptions =
(data->ModeOptions & 0xfe)|(AL_reg(context) == 1);
break;
case 0x36: /* VIDEO ADDRESS CONTROL */
FIXME("Video Address Control - Not Supported\n");
break;
default:
FIXME("INT 10 AH = 0x11 AL = 0x%x - Unknown\n",
AL_reg(context));
break;
}
break;
case 0x13: /* WRITE STRING */
/* This one does not imply that string be at cursor. */
FIXME("Write String - Not Supported\n");
break;
case 0x1a:
switch AL_reg(context) {
case 0x00: /* GET DISPLAY COMBINATION CODE */
TRACE("Get Display Combination Code\n");
SET_AL( context, 0x1a ); /* Function supported */
SET_BL( context, INT10_DCC ); /* Active display */
SET_BH( context, 0x00 ); /* No alternate display */
break;
case 0x01: /* SET DISPLAY COMBINATION CODE */
FIXME("Set Display Combination Code - Not Supported\n");
break;
default:
FIXME("INT 10 AH = 0x1a AL = 0x%x - Unknown\n",
AL_reg(context));
break;
}
break;
case 0x1b: /* FUNCTIONALITY/STATE INFORMATION */
TRACE("Get functionality/state information\n");
if (BX_reg(context) == 0x0000)
{
BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
context->SegEs,
context->Edi);
SET_AL( context, 0x1b ); /* Function is supported */
INT10_FillStateInformation( ptr, data );
}
break;
case 0x1c: /* SAVE/RESTORE VIDEO STATE */
FIXME("Save/Restore Video State - Not Supported\n");
break;
case 0xef: /* get video mode for hercules-compatibles */
/* There's no reason to really support this */
/* is there?....................(A.C.) */
TRACE("Just report the video not hercules compatible\n");
SET_DX( context, 0xffff );
break;
case 0x4f: /* VESA */
INT10_HandleVESA(context);
break;
case 0xfe: /* GET SHADOW BUFFER */
TRACE( "GET SHADOW BUFFER %x:%x - ignored\n",
context->SegEs, DI_reg(context) );
break;
default:
FIXME("Unknown - 0x%x\n", AH_reg(context));
INT_BARF( context, 0x10 );
}
}
/**********************************************************************
* INT10_HandleVESA
*
* Handler for VESA functions (int10 function 0x4f).
*/
static void INT10_HandleVESA( CONTEXT *context )
{
BIOSDATA *data = DOSVM_BiosData();
switch(AL_reg(context)) {
case 0x00: /* RETURN CONTROLLER INFORMATION */
TRACE( "VESA RETURN CONTROLLER INFORMATION\n" );
{
BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
context->SegEs,
context->Edi);
INT10_FillControllerInformation( ptr );
SET_AL( context, 0x4f );
SET_AH( context, 0x00 ); /* 0x00 = successful 0x01 = failed */
}
break;
case 0x01: /* RETURN MODE INFORMATION */
TRACE( "VESA RETURN MODE INFORMATION %04x\n", CX_reg(context) );
{
struct _ModeInfoBlock *ptr = CTX_SEG_OFF_TO_LIN(context,
context->SegEs,
context->Edi);
SET_AL( context, 0x4f );
if (INT10_FillModeInformation( ptr, CX_reg(context) ))
SET_AH( context, 0x00 ); /* status: success */
else
SET_AH( context, 0x01 ); /* status: failed */
}
break;
case 0x02: /* SET SuperVGA VIDEO MODE */
TRACE( "Set VESA video mode %04x\n", BX_reg(context) );
SET_AL( context, 0x4f ); /* function supported */
if (INT10_SetVideoMode( data, BX_reg(context) ))
SET_AH( context, 0x00 ); /* success */
else
SET_AH( context, 0x01 ); /* failed */
break;
case 0x03: /* VESA SuperVGA BIOS - GET CURRENT VIDEO MODE */
SET_AL( context, 0x4f );
SET_AH( context, 0x00 );
SET_BX( context, INT10_GetHeap()->VesaCurrentMode );
break;
case 0x04: /* VESA SuperVGA BIOS - SAVE/RESTORE SuperVGA VIDEO STATE */
ERR("VESA SAVE/RESTORE Video State - Not Implemented\n");
/* AL_reg(context) = 0x4f; = supported so not set since not implemented */
/* maybe we should do this instead ? */
/* AH_reg(context = 0x01; not implemented so just fail */
break;
case 0x05: /* VESA SuperVGA BIOS - CPU VIDEO MEMORY CONTROL */
/*
* This subfunction supports only Window A (BL_reg == 0) and
* it assumes that window granularity is 64k.
*/
switch(BH_reg(context)) {
case 0x00: /* select video memory window */
SET_AL( context, 0x4f ); /* function supported */
if(BL_reg(context) == 0) {
VGA_SetWindowStart(DX_reg(context) * 64 * 1024);
SET_AH( context, 0x00 ); /* status: successful */
} else
SET_AH( context, 0x01 ); /* status: failed */
break;
case 0x01: /* get video memory window */
SET_AL( context, 0x4f ); /* function supported */
if(BL_reg(context) == 0) {
SET_DX( context, VGA_GetWindowStart() / 64 / 1024 );
SET_AH( context, 0x00 ); /* status: successful */
} else
SET_AH( context, 0x01 ); /* status: failed */
break;
default:
INT_BARF( context, 0x10 );
}
break;
case 0x06: /* VESA GET/SET LOGICAL SCAN LINE LENGTH */
ERR("VESA GET/SET LOGICAL SCAN LINE LENGTH - Not Implemented\n");
/* AL_reg(context) = 0x4f; = supported so not set since not implemented */
/* maybe we should do this instead ? */
/* AH_reg(context = 0x001; not implemented so just fail */
break;
case 0x07: /* GET/SET DISPLAY START */
ERR("VESA GET/SET DISPLAY START - Not Implemented\n");
/* AL_reg(context) = 0x4f; = supported so not set since not implemented */
/* maybe we should do this instead ? */
/* AH_reg(context = 0x001; not implemented so just fail */
break;
case 0x08: /* GET/SET DAC PALETTE CONTROL */
ERR("VESA GET/SET DAC PALETTE CONTROL- Not Implemented\n");
/* AL_reg(context) = 0x4f; = supported so not set since not implemented */
/* maybe we should do this instead ? */
/* AH_reg(context = 0x001; not implemented so just fail */
break;
case 0x09: /* SET PALETTE ENTRIES */
FIXME("VESA Set palette entries - not implemented\n");
break;
case 0x0a: /* GET PROTECTED-MODE CODE */
FIXME("VESA Get protected-mode code - not implemented\n");
break;
case 0x10: /* Display Power Management Extensions */
FIXME("VESA Display Power Management Extensions - not implemented\n");
break;
case 0xef: /* get video mode for hercules-compatibles */
/* There's no reason to really support this */
/* is there?....................(A.C.) */
TRACE("Just report the video not hercules compatible\n");
SET_DX( context, 0xffff );
break;
case 0xff: /* Turn VESA ON/OFF */
/* I don't know what to do */
break;
default:
FIXME("VESA Function (0x%x) - Not Supported\n", AH_reg(context));
break;
}
}
void BIOSCALL int13_cdrom(uint16_t EHBX, disk_regs_t r)
{
uint16_t ebda_seg = read_word(0x0040,0x000E);
uint8_t device, status, locks;
cdb_atapi atapicmd;
uint32_t lba;
uint16_t count, segment, offset, size;
bio_dsk_t __far *bios_dsk;
int13ext_t __far *i13x;
dpt_t __far *dpt;
bios_dsk = ebda_seg :> &EbdaData->bdisk;
BX_DEBUG_INT13_CD("%s: AX=%04x BX=%04x CX=%04x DX=%04x ES=%04x\n", __func__, AX, BX, CX, DX, ES);
SET_DISK_RET_STATUS(0x00);
/* basic check : device should be 0xE0+ */
if( (GET_ELDL() < 0xE0) || (GET_ELDL() >= 0xE0 + BX_MAX_STORAGE_DEVICES) ) {
BX_DEBUG("%s: function %02x, ELDL out of range %02x\n", __func__, GET_AH(), GET_ELDL());
goto int13_fail;
}
// Get the ata channel
device = bios_dsk->cdidmap[GET_ELDL()-0xE0];
/* basic check : device has to be valid */
if (device >= BX_MAX_STORAGE_DEVICES) {
BX_DEBUG("%s: function %02x, unmapped device for ELDL=%02x\n", __func__, GET_AH(), GET_ELDL());
goto int13_fail;
}
switch (GET_AH()) {
// all those functions return SUCCESS
case 0x00: /* disk controller reset */
case 0x09: /* initialize drive parameters */
case 0x0c: /* seek to specified cylinder */
case 0x0d: /* alternate disk reset */
case 0x10: /* check drive ready */
case 0x11: /* recalibrate */
case 0x14: /* controller internal diagnostic */
case 0x16: /* detect disk change */
goto int13_success;
break;
// all those functions return disk write-protected
case 0x03: /* write disk sectors */
case 0x05: /* format disk track */
case 0x43: // IBM/MS extended write
SET_AH(0x03);
goto int13_fail_noah;
break;
case 0x01: /* read disk status */
status = read_byte(0x0040, 0x0074);
SET_AH(status);
SET_DISK_RET_STATUS(0);
/* set CF if error status read */
if (status)
goto int13_fail_nostatus;
else
goto int13_success_noah;
break;
case 0x15: /* read disk drive size */
SET_AH(0x02);
goto int13_fail_noah;
break;
case 0x41: // IBM/MS installation check
BX = 0xaa55; // install check
SET_AH(0x30); // EDD 2.1
CX = 0x0007; // ext disk access, removable and edd
goto int13_success_noah;
break;
case 0x42: // IBM/MS extended read
case 0x44: // IBM/MS verify sectors
case 0x47: // IBM/MS extended seek
/* Load the I13X struct pointer. */
i13x = MK_FP(DS, SI);
count = i13x->count;
segment = i13x->segment;
offset = i13x->offset;
// Can't use 64 bits lba
lba = i13x->lba2;
if (lba != 0L) {
BX_PANIC("%s: function %02x. Can't use 64bits lba\n", __func__, GET_AH());
goto int13_fail;
}
// Get 32 bits lba
lba = i13x->lba1;
// If verify or seek
if (( GET_AH() == 0x44 ) || ( GET_AH() == 0x47 ))
goto int13_success;
BX_DEBUG_INT13_CD("%s: read %u sectors @ LBA %lu to %04X:%04X\n",
__func__, count, lba, segment, offset);
_fmemset(&atapicmd, 0, sizeof(atapicmd));
atapicmd.command = 0x28; // READ 10 command
atapicmd.lba = swap_32(lba);
atapicmd.nsect = swap_16(count);
bios_dsk->drqp.nsect = count;
bios_dsk->drqp.sect_sz = 2048;
status = pktacc[bios_dsk->devices[device].type](device, 12, (char __far *)&atapicmd, 0, count*2048L, ATA_DATA_IN, MK_FP(segment,offset));
count = (uint16_t)(bios_dsk->drqp.trsfbytes >> 11);
i13x->count = count;
if (status != 0) {
BX_INFO("%s: function %02x, status %02x !\n", __func__, GET_AH(), status);
SET_AH(0x0c);
goto int13_fail_noah;
}
goto int13_success;
break;
case 0x45: // IBM/MS lock/unlock drive
if (GET_AL() > 2)
goto int13_fail;
locks = bios_dsk->devices[device].lock;
switch (GET_AL()) {
case 0 : // lock
if (locks == 0xff) {
SET_AH(0xb4);
SET_AL(1);
goto int13_fail_noah;
}
bios_dsk->devices[device].lock = ++locks;
SET_AL(1);
break;
case 1 : // unlock
if (locks == 0x00) {
SET_AH(0xb0);
SET_AL(0);
goto int13_fail_noah;
}
bios_dsk->devices[device].lock = --locks;
SET_AL(locks==0?0:1);
break;
case 2 : // status
SET_AL(locks==0?0:1);
break;
}
goto int13_success;
break;
case 0x46: // IBM/MS eject media
locks = bios_dsk->devices[device].lock;
if (locks != 0) {
SET_AH(0xb1); // media locked
goto int13_fail_noah;
}
// FIXME should handle 0x31 no media in device
// FIXME should handle 0xb5 valid request failed
#if 0 //@todo: implement!
// Call removable media eject
ASM_START
push bp
mov bp, sp
mov ah, #0x52
int #0x15
mov _int13_cdrom.status + 2[bp], ah
jnc int13_cdrom_rme_end
mov _int13_cdrom.status, #1
int13_cdrom_rme_end:
pop bp
ASM_END
#endif
if (status != 0) {
SET_AH(0xb1); // media locked
goto int13_fail_noah;
}
goto int13_success;
break;
//@todo: Part of this should be merged with analogous code in disk.c
case 0x48: // IBM/MS get drive parameters
dpt = DS :> (dpt_t *)SI;
size = dpt->size;
// Buffer is too small
if (size < 0x1a)
goto int13_fail;
// EDD 1.x
if (size >= 0x1a) {
uint16_t blksize;
blksize = bios_dsk->devices[device].blksize;
dpt->size = 0x1a;
dpt->infos = 0x74; /* Removable, media change, lockable, max values */
dpt->cylinders = 0xffffffff;
dpt->heads = 0xffffffff;
dpt->spt = 0xffffffff;
dpt->blksize = blksize;
dpt->sector_count1 = 0xffffffff; // FIXME should be Bit64
dpt->sector_count2 = 0xffffffff;
}
// EDD 2.x
if(size >= 0x1e) {
uint8_t channel, irq, mode, checksum, i;
uint16_t iobase1, iobase2, options;
dpt->size = 0x1e;
dpt->dpte_segment = ebda_seg;
dpt->dpte_offset = (uint16_t)&EbdaData->bdisk.dpte;
// Fill in dpte
channel = device / 2;
iobase1 = bios_dsk->channels[channel].iobase1;
iobase2 = bios_dsk->channels[channel].iobase2;
irq = bios_dsk->channels[channel].irq;
mode = bios_dsk->devices[device].mode;
// FIXME atapi device
options = (1<<4); // lba translation
options |= (1<<5); // removable device
options |= (1<<6); // atapi device
#if VBOX_BIOS_CPU >= 80386
options |= (mode==ATA_MODE_PIO32?1:0<<7);
#endif
bios_dsk->dpte.iobase1 = iobase1;
bios_dsk->dpte.iobase2 = iobase2;
bios_dsk->dpte.prefix = (0xe | (device % 2))<<4;
bios_dsk->dpte.unused = 0xcb;
bios_dsk->dpte.irq = irq;
bios_dsk->dpte.blkcount = 1 ;
bios_dsk->dpte.dma = 0;
bios_dsk->dpte.pio = 0;
bios_dsk->dpte.options = options;
bios_dsk->dpte.reserved = 0;
bios_dsk->dpte.revision = 0x11;
checksum = 0;
for (i = 0; i < 15; ++i)
checksum += read_byte(ebda_seg, (uint16_t)&EbdaData->bdisk.dpte + i);
checksum = -checksum;
bios_dsk->dpte.checksum = checksum;
}
// EDD 3.x
if(size >= 0x42) {
uint8_t channel, iface, checksum, i;
uint16_t iobase1;
channel = device / 2;
iface = bios_dsk->channels[channel].iface;
iobase1 = bios_dsk->channels[channel].iobase1;
dpt->size = 0x42;
dpt->key = 0xbedd;
dpt->dpi_length = 0x24;
dpt->reserved1 = 0;
dpt->reserved2 = 0;
if (iface == ATA_IFACE_ISA) {
dpt->host_bus[0] = 'I';
dpt->host_bus[1] = 'S';
dpt->host_bus[2] = 'A';
dpt->host_bus[3] = ' ';
}
else {
// FIXME PCI
}
dpt->iface_type[0] = 'A';
dpt->iface_type[1] = 'T';
dpt->iface_type[2] = 'A';
dpt->iface_type[3] = ' ';
dpt->iface_type[4] = ' ';
dpt->iface_type[5] = ' ';
dpt->iface_type[6] = ' ';
dpt->iface_type[7] = ' ';
if (iface == ATA_IFACE_ISA) {
((uint16_t __far *)dpt->iface_path)[0] = iobase1;
((uint16_t __far *)dpt->iface_path)[1] = 0;
((uint32_t __far *)dpt->iface_path)[1] = 0;
}
else {
// FIXME PCI
}
((uint16_t __far *)dpt->device_path)[0] = device & 1;
((uint16_t __far *)dpt->device_path)[1] = 0;
((uint32_t __far *)dpt->device_path)[1] = 0;
checksum = 0;
for (i = 30; i < 64; ++i)
checksum += ((uint8_t __far *)dpt)[i];
checksum = -checksum;
dpt->checksum = checksum;
}
goto int13_success;
break;
case 0x49: // IBM/MS extended media change
// always send changed ??
SET_AH(06);
goto int13_fail_nostatus;
break;
case 0x4e: // // IBM/MS set hardware configuration
// DMA, prefetch, PIO maximum not supported
switch (GET_AL()) {
case 0x01:
case 0x03:
case 0x04:
case 0x06:
goto int13_success;
break;
default :
goto int13_fail;
}
break;
// all those functions return unimplemented
case 0x02: /* read sectors */
case 0x04: /* verify sectors */
case 0x08: /* read disk drive parameters */
case 0x0a: /* read disk sectors with ECC */
case 0x0b: /* write disk sectors with ECC */
case 0x18: /* set media type for format */
case 0x50: // ? - send packet command
default:
BX_INFO("%s: unsupported AH=%02x\n", __func__, GET_AH());
goto int13_fail;
break;
}
int13_fail:
SET_AH(0x01); // defaults to invalid function in AH or invalid parameter
int13_fail_noah:
SET_DISK_RET_STATUS(GET_AH());
int13_fail_nostatus:
SET_CF(); // error occurred
return;
int13_success:
SET_AH(0x00); // no error
int13_success_noah:
SET_DISK_RET_STATUS(0x00);
CLEAR_CF(); // no error
return;
}
void BIOSCALL int13_cdemu(disk_regs_t r)
{
// @TODO: a macro or a function for getting the EBDA segment
uint16_t ebda_seg=read_word(0x0040,0x000E);
uint8_t device, status;
uint16_t vheads, vspt, vcylinders;
uint16_t head, sector, cylinder, nbsectors;
uint32_t vlba, ilba, slba, elba;
uint16_t before, segment, offset;
cdb_atapi atapicmd;
cdemu_t __far *cdemu;
bio_dsk_t __far *bios_dsk;
cdemu = ebda_seg :> &EbdaData->cdemu;
bios_dsk = ebda_seg :> &EbdaData->bdisk;
BX_DEBUG_INT13_ET("%s: AX=%04x BX=%04x CX=%04x DX=%04x ES=%04x\n", __func__, AX, BX, CX, DX, ES);
/* at this point, we are emulating a floppy/harddisk */
// Recompute the device number
device = cdemu->controller_index * 2;
device += cdemu->device_spec;
SET_DISK_RET_STATUS(0x00);
/* basic checks : emulation should be active, dl should equal the emulated drive */
if (!cdemu->active || (cdemu->emulated_drive != GET_DL())) {
BX_INFO("%s: function %02x, emulation not active for DL= %02x\n", __func__, GET_AH(), GET_DL());
goto int13_fail;
}
switch (GET_AH()) {
case 0x00: /* disk controller reset */
if (pktacc[bios_dsk->devices[device].type])
{
status = softrst[bios_dsk->devices[device].type](device);
}
goto int13_success;
break;
// all those functions return SUCCESS
case 0x09: /* initialize drive parameters */
case 0x0c: /* seek to specified cylinder */
case 0x0d: /* alternate disk reset */ // FIXME ElTorito Various. should really reset ?
case 0x10: /* check drive ready */ // FIXME ElTorito Various. should check if ready ?
case 0x11: /* recalibrate */
case 0x14: /* controller internal diagnostic */
case 0x16: /* detect disk change */
goto int13_success;
break;
// all those functions return disk write-protected
case 0x03: /* write disk sectors */
case 0x05: /* format disk track */
SET_AH(0x03);
goto int13_fail_noah;
break;
case 0x01: /* read disk status */
status=read_byte(0x0040, 0x0074);
SET_AH(status);
SET_DISK_RET_STATUS(0);
/* set CF if error status read */
if (status)
goto int13_fail_nostatus;
else
goto int13_success_noah;
break;
case 0x02: // read disk sectors
case 0x04: // verify disk sectors
vspt = cdemu->vdevice.spt;
vcylinders = cdemu->vdevice.cylinders;
vheads = cdemu->vdevice.heads;
ilba = cdemu->ilba;
sector = GET_CL() & 0x003f;
cylinder = (GET_CL() & 0x00c0) << 2 | GET_CH();
head = GET_DH();
nbsectors = GET_AL();
segment = ES;
offset = BX;
BX_DEBUG_INT13_ET("%s: read to %04x:%04x @ VCHS %u/%u/%u (%u sectors)\n", __func__,
ES, BX, cylinder, head, sector, nbsectors);
// no sector to read ?
if(nbsectors==0)
goto int13_success;
// sanity checks sco openserver needs this!
if ((sector > vspt)
|| (cylinder >= vcylinders)
|| (head >= vheads)) {
goto int13_fail;
}
// After validating the input, verify does nothing
if (GET_AH() == 0x04)
goto int13_success;
segment = ES+(BX / 16);
offset = BX % 16;
// calculate the virtual lba inside the image
vlba=((((uint32_t)cylinder*(uint32_t)vheads)+(uint32_t)head)*(uint32_t)vspt)+((uint32_t)(sector-1));
// In advance so we don't lose the count
SET_AL(nbsectors);
// start lba on cd
slba = (uint32_t)vlba / 4;
before = (uint32_t)vlba % 4;
// end lba on cd
elba = (uint32_t)(vlba + nbsectors - 1) / 4;
_fmemset(&atapicmd, 0, sizeof(atapicmd));
atapicmd.command = 0x28; // READ 10 command
atapicmd.lba = swap_32(ilba + slba);
atapicmd.nsect = swap_16(elba - slba + 1);
bios_dsk->drqp.nsect = nbsectors;
bios_dsk->drqp.sect_sz = 512;
bios_dsk->drqp.skip_b = before * 512;
bios_dsk->drqp.skip_a = ((4 - nbsectors % 4 - before) * 512) % 2048;
status = pktacc[bios_dsk->devices[device].type](device, 12, (char __far *)&atapicmd, before*512, nbsectors*512L, ATA_DATA_IN, MK_FP(segment,offset));
bios_dsk->drqp.skip_b = 0;
bios_dsk->drqp.skip_a = 0;
if (status != 0) {
BX_INFO("%s: function %02x, error %02x !\n", __func__, GET_AH(), status);
SET_AH(0x02);
SET_AL(0);
goto int13_fail_noah;
}
goto int13_success;
break;
case 0x08: /* read disk drive parameters */
vspt = cdemu->vdevice.spt;
vcylinders = cdemu->vdevice.cylinders - 1;
vheads = cdemu->vdevice.heads - 1;
SET_AL( 0x00 );
SET_BL( 0x00 );
SET_CH( vcylinders & 0xff );
SET_CL((( vcylinders >> 2) & 0xc0) | ( vspt & 0x3f ));
SET_DH( vheads );
SET_DL( 0x02 ); // FIXME ElTorito Various. should send the real count of drives 1 or 2
// FIXME ElTorito Harddisk. should send the HD count
switch (cdemu->media) {
case 0x01: SET_BL( 0x02 ); break; /* 1.2 MB */
case 0x02: SET_BL( 0x04 ); break; /* 1.44 MB */
case 0x03: SET_BL( 0x05 ); break; /* 2.88 MB */
}
/* Only set the DPT pointer for emulated floppies. */
if (cdemu->media < 4) {
DI = (uint16_t)&diskette_param_table; // @todo: should this depend on emulated medium?
ES = 0xF000; // @todo: how to make this relocatable?
}
goto int13_success;
break;
case 0x15: /* read disk drive size */
// FIXME ElTorito Harddisk. What geometry to send ?
SET_AH(0x03);
goto int13_success_noah;
break;
// all those functions return unimplemented
case 0x0a: /* read disk sectors with ECC */
case 0x0b: /* write disk sectors with ECC */
case 0x18: /* set media type for format */
case 0x41: // IBM/MS installation check
// FIXME ElTorito Harddisk. Darwin would like to use EDD
case 0x42: // IBM/MS extended read
case 0x43: // IBM/MS extended write
case 0x44: // IBM/MS verify sectors
case 0x45: // IBM/MS lock/unlock drive
case 0x46: // IBM/MS eject media
case 0x47: // IBM/MS extended seek
case 0x48: // IBM/MS get drive parameters
case 0x49: // IBM/MS extended media change
case 0x4e: // ? - set hardware configuration
case 0x50: // ? - send packet command
default:
BX_INFO("%s: function AH=%02x unsupported, returns fail\n", __func__, GET_AH());
goto int13_fail;
break;
}
int13_fail:
SET_AH(0x01); // defaults to invalid function in AH or invalid parameter
int13_fail_noah:
SET_DISK_RET_STATUS(GET_AH());
int13_fail_nostatus:
SET_CF(); // error occurred
return;
int13_success:
SET_AH(0x00); // no error
int13_success_noah:
SET_DISK_RET_STATUS(0x00);
CLEAR_CF(); // no error
return;
}
void BIOSCALL int13_harddisk(disk_regs_t r)
{
uint32_t lba;
uint16_t cylinder, head, sector;
uint16_t nlc, nlh, nlspt;
uint16_t count;
uint8_t device, status;
bio_dsk_t __far *bios_dsk;
BX_DEBUG_INT13_HD("%s: AX=%04x BX=%04x CX=%04x DX=%04x ES=%04x\n", __func__, AX, BX, CX, DX, ES);
bios_dsk = read_word(0x0040,0x000E) :> &EbdaData->bdisk;
write_byte(0x0040, 0x008e, 0); // clear completion flag
// basic check : device has to be defined
if ( (GET_ELDL() < 0x80) || (GET_ELDL() >= 0x80 + BX_MAX_STORAGE_DEVICES) ) {
BX_DEBUG("%s: function %02x, ELDL out of range %02x\n", __func__, GET_AH(), GET_ELDL());
goto int13_fail;
}
// Get the ata channel
device = bios_dsk->hdidmap[GET_ELDL()-0x80];
// basic check : device has to be valid
if (device >= BX_MAX_STORAGE_DEVICES) {
BX_DEBUG("%s: function %02x, unmapped device for ELDL=%02x\n", __func__, GET_AH(), GET_ELDL());
goto int13_fail;
}
switch (GET_AH()) {
case 0x00: /* disk controller reset */
#ifdef VBOX_WITH_SCSI
/* SCSI controller does not need a reset. */
if (!VBOX_IS_SCSI_DEVICE(device))
#endif
ata_reset (device);
goto int13_success;
break;
case 0x01: /* read disk status */
status = read_byte(0x0040, 0x0074);
SET_AH(status);
SET_DISK_RET_STATUS(0);
/* set CF if error status read */
if (status) goto int13_fail_nostatus;
else goto int13_success_noah;
break;
case 0x02: // read disk sectors
case 0x03: // write disk sectors
case 0x04: // verify disk sectors
count = GET_AL();
cylinder = GET_CH();
cylinder |= ( ((uint16_t) GET_CL()) << 2) & 0x300;
sector = (GET_CL() & 0x3f);
head = GET_DH();
/* Segment and offset are in ES:BX. */
if ( (count > 128) || (count == 0) ) {
BX_INFO("%s: function %02x, count out of range!\n", __func__, GET_AH());
goto int13_fail;
}
/* Get the logical CHS geometry. */
nlc = bios_dsk->devices[device].lchs.cylinders;
nlh = bios_dsk->devices[device].lchs.heads;
nlspt = bios_dsk->devices[device].lchs.spt;
/* Sanity check the geometry. */
if( (cylinder >= nlc) || (head >= nlh) || (sector > nlspt )) {
BX_INFO("%s: function %02x, disk %02x, parameters out of range %04x/%04x/%04x!\n", __func__, GET_AH(), GET_DL(), cylinder, head, sector);
goto int13_fail;
}
// FIXME verify
if ( GET_AH() == 0x04 )
goto int13_success;
/* If required, translate LCHS to LBA and execute command. */
//@todo: The IS_SCSI_DEVICE check should be redundant...
if (( (bios_dsk->devices[device].pchs.heads != nlh) || (bios_dsk->devices[device].pchs.spt != nlspt)) || VBOX_IS_SCSI_DEVICE(device)) {
lba = ((((uint32_t)cylinder * (uint32_t)nlh) + (uint32_t)head) * (uint32_t)nlspt) + (uint32_t)sector - 1;
sector = 0; // this forces the command to be lba
}
/* Clear the count of transferred sectors/bytes. */
bios_dsk->drqp.trsfsectors = 0;
bios_dsk->drqp.trsfbytes = 0;
/* Pass request information to low level disk code. */
bios_dsk->drqp.lba = lba;
bios_dsk->drqp.buffer = MK_FP(ES, BX);
bios_dsk->drqp.nsect = count;
bios_dsk->drqp.sect_sz = 512; //@todo: device specific?
bios_dsk->drqp.cylinder = cylinder;
bios_dsk->drqp.head = head;
bios_dsk->drqp.sector = sector;
bios_dsk->drqp.dev_id = device;
status = dskacc[bios_dsk->devices[device].type].a[GET_AH() - 0x02](bios_dsk);
// Set nb of sector transferred
SET_AL(bios_dsk->drqp.trsfsectors);
if (status != 0) {
BX_INFO("%s: function %02x, error %02x !\n", __func__, GET_AH(), status);
SET_AH(0x0c);
goto int13_fail_noah;
}
goto int13_success;
break;
case 0x05: /* format disk track */
BX_INFO("format disk track called\n");
goto int13_success;
return;
break;
case 0x08: /* read disk drive parameters */
/* Get the logical geometry from internal table. */
nlc = bios_dsk->devices[device].lchs.cylinders;
nlh = bios_dsk->devices[device].lchs.heads;
nlspt = bios_dsk->devices[device].lchs.spt;
count = bios_dsk->hdcount;
/* Maximum cylinder number is just one less than the number of cylinders. */
nlc = nlc - 1; /* 0 based , last sector not used */
SET_AL(0);
SET_CH(nlc & 0xff);
SET_CL(((nlc >> 2) & 0xc0) | (nlspt & 0x3f));
SET_DH(nlh - 1);
SET_DL(count); /* FIXME returns 0, 1, or n hard drives */
// FIXME should set ES & DI
// @todo: Actually, the above comment is nonsense.
goto int13_success;
break;
case 0x10: /* check drive ready */
// should look at 40:8E also???
// Read the status from controller
status = inb(bios_dsk->channels[device/2].iobase1 + ATA_CB_STAT);
if ( (status & ( ATA_CB_STAT_BSY | ATA_CB_STAT_RDY )) == ATA_CB_STAT_RDY ) {
goto int13_success;
} else {
SET_AH(0xAA);
goto int13_fail_noah;
}
break;
case 0x15: /* read disk drive size */
/* Get the physical geometry from internal table. */
cylinder = bios_dsk->devices[device].pchs.cylinders;
head = bios_dsk->devices[device].pchs.heads;
sector = bios_dsk->devices[device].pchs.spt;
/* Calculate sector count seen by old style INT 13h. */
lba = (uint32_t)cylinder * head * sector;
CX = lba >> 16;
DX = lba & 0xffff;
SET_AH(3); // hard disk accessible
goto int13_success_noah;
break;
case 0x09: /* initialize drive parameters */
case 0x0c: /* seek to specified cylinder */
case 0x0d: /* alternate disk reset */
case 0x11: /* recalibrate */
case 0x14: /* controller internal diagnostic */
BX_INFO("%s: function %02xh unimplemented, returns success\n", __func__, GET_AH());
goto int13_success;
break;
case 0x0a: /* read disk sectors with ECC */
case 0x0b: /* write disk sectors with ECC */
case 0x18: // set media type for format
default:
BX_INFO("%s: function %02xh unsupported, returns fail\n", __func__, GET_AH());
goto int13_fail;
break;
}
int13_fail:
SET_AH(0x01); // defaults to invalid function in AH or invalid parameter
int13_fail_noah:
SET_DISK_RET_STATUS(GET_AH());
int13_fail_nostatus:
SET_CF(); // error occurred
return;
int13_success:
SET_AH(0x00); // no error
int13_success_noah:
SET_DISK_RET_STATUS(0x00);
CLEAR_CF(); // no error
return;
}
void WINAPI DOSVM_Int16Handler( CONTEXT86 *context )
{
BIOSDATA *data = NULL;
BYTE ascii, scan;
switch AH_reg(context) {
case 0x00: /* Get Keystroke */
/* Returns: AH = Scan code
AL = ASCII character */
TRACE("Get Keystroke\n");
DOSVM_Int16ReadChar(&ascii, &scan, context);
SET_AL( context, ascii );
SET_AH( context, scan );
break;
case 0x01: /* Check for Keystroke */
/* Returns: ZF set if no keystroke */
/* AH = Scan code */
/* AL = ASCII character */
TRACE("Check for Keystroke\n");
if (!DOSVM_Int16ReadChar(&ascii, &scan, NULL))
{
SET_ZFLAG(context);
}
else
{
SET_AL( context, ascii );
SET_AH( context, scan );
RESET_ZFLAG(context);
}
/* don't miss the opportunity to break some tight timing loop in DOS
* programs causing 100% CPU usage (by doing a Sleep here) */
Sleep(5);
break;
case 0x02: /* Get Shift Flags */
/* read value from BIOS data segment's keyboard status flags field */
data = DOSVM_BiosData();
SET_AL( context, data->KbdFlags1 );
TRACE("Get Shift Flags: returning 0x%02x\n", AL_reg(context));
break;
case 0x03: /* Set Typematic Rate and Delay */
FIXME("Set Typematic Rate and Delay - Not Supported\n");
break;
case 0x05:/*simulate Keystroke*/
FIXME("Simulating a keystroke is not supported yet\n");
break;
case 0x09: /* Get Keyboard Functionality */
FIXME("Get Keyboard Functionality - Not Supported\n");
/* As a temporary measure, say that "nothing" is supported... */
SET_AL( context, 0 );
break;
case 0x0a: /* Get Keyboard ID */
FIXME("Get Keyboard ID - Not Supported\n");
break;
case 0x10: /* Get Enhanced Keystroke */
TRACE("Get Enhanced Keystroke - Partially supported\n");
/* Returns: AH = Scan code
AL = ASCII character */
DOSVM_Int16ReadChar(&ascii, &scan, context);
SET_AL( context, ascii );
SET_AH( context, scan );
break;
case 0x11: /* Check for Enhanced Keystroke */
/* Returns: ZF set if no keystroke */
/* AH = Scan code */
/* AL = ASCII character */
TRACE("Check for Enhanced Keystroke - Partially supported\n");
if (!DOSVM_Int16ReadChar(&ascii, &scan, NULL))
{
SET_ZFLAG(context);
}
else
{
SET_AL( context, ascii );
SET_AH( context, scan );
RESET_ZFLAG(context);
}
break;
case 0x12: /* Get Extended Shift States */
FIXME("Get Extended Shift States - Not Supported\n");
break;
default:
FIXME("Unknown INT 16 function - 0x%x\n", AH_reg(context));
break;
}
}
/**********************************************************************
* DOSVM_Int31Handler (WINEDOS16.149)
*
* Handler for int 31h (DPMI).
*/
void WINAPI DOSVM_Int31Handler( CONTEXT86 *context )
{
RESET_CFLAG(context);
switch(AX_reg(context))
{
case 0x0000: /* Allocate LDT descriptors */
TRACE( "allocate LDT descriptors (%d)\n", CX_reg(context) );
{
WORD sel = AllocSelectorArray16( CX_reg(context) );
if(!sel)
{
TRACE( "failed\n" );
SET_AX( context, 0x8011 ); /* descriptor unavailable */
SET_CFLAG( context );
}
else
{
TRACE( "success, array starts at 0x%04x\n", sel );
SET_AX( context, sel );
}
}
break;
case 0x0001: /* Free LDT descriptor */
TRACE( "free LDT descriptor (0x%04x)\n", BX_reg(context) );
if (FreeSelector16( BX_reg(context) ))
{
SET_AX( context, 0x8022 ); /* invalid selector */
SET_CFLAG( context );
}
else
{
/* If a segment register contains the selector being freed, */
/* set it to zero. */
if (!((context->SegDs^BX_reg(context)) & ~3)) context->SegDs = 0;
if (!((context->SegEs^BX_reg(context)) & ~3)) context->SegEs = 0;
if (!((context->SegFs^BX_reg(context)) & ~3)) context->SegFs = 0;
if (!((context->SegGs^BX_reg(context)) & ~3)) context->SegGs = 0;
}
break;
case 0x0002: /* Real mode segment to descriptor */
TRACE( "real mode segment to descriptor (0x%04x)\n", BX_reg(context) );
{
WORD entryPoint = 0; /* KERNEL entry point for descriptor */
switch(BX_reg(context))
{
case 0x0000: entryPoint = 183; break; /* __0000H */
case 0x0040: entryPoint = 193; break; /* __0040H */
case 0xa000: entryPoint = 174; break; /* __A000H */
case 0xb000: entryPoint = 181; break; /* __B000H */
case 0xb800: entryPoint = 182; break; /* __B800H */
case 0xc000: entryPoint = 195; break; /* __C000H */
case 0xd000: entryPoint = 179; break; /* __D000H */
case 0xe000: entryPoint = 190; break; /* __E000H */
case 0xf000: entryPoint = 194; break; /* __F000H */
default:
FIXME("Real mode segment (%x) to descriptor: no longer supported\n",
BX_reg(context));
SET_CFLAG( context );
break;
}
if (entryPoint)
{
FARPROC16 proc = GetProcAddress16( GetModuleHandle16( "KERNEL" ),
(LPCSTR)(ULONG_PTR)entryPoint );
SET_AX( context, LOWORD(proc) );
}
}
break;
case 0x0003: /* Get next selector increment */
TRACE("get selector increment (__AHINCR)\n");
context->Eax = __AHINCR;
break;
case 0x0004: /* Lock selector (not supported) */
FIXME("lock selector not supported\n");
context->Eax = 0; /* FIXME: is this a correct return value? */
break;
case 0x0005: /* Unlock selector (not supported) */
FIXME("unlock selector not supported\n");
context->Eax = 0; /* FIXME: is this a correct return value? */
break;
case 0x0006: /* Get selector base address */
TRACE( "get selector base address (0x%04x)\n", BX_reg(context) );
{
LDT_ENTRY entry;
WORD sel = BX_reg(context);
wine_ldt_get_entry( sel, &entry );
if (wine_ldt_is_empty(&entry))
{
context->Eax = 0x8022; /* invalid selector */
SET_CFLAG(context);
}
else
{
void *base = wine_ldt_get_base(&entry);
SET_CX( context, HIWORD(base) );
SET_DX( context, LOWORD(base) );
}
}
break;
case 0x0007: /* Set selector base address */
{
DWORD base = MAKELONG( DX_reg(context), CX_reg(context) );
WORD sel = BX_reg(context);
TRACE( "set selector base address (0x%04x,0x%08lx)\n", sel, base );
/* check if Win16 app wants to access lower 64K of DOS memory */
if (base < 0x10000 && DOSVM_IsWin16())
DOSMEM_MapDosLayout();
SetSelectorBase( sel, base );
}
break;
case 0x0008: /* Set selector limit */
{
DWORD limit = MAKELONG( DX_reg(context), CX_reg(context) );
TRACE( "set selector limit (0x%04x,0x%08lx)\n",
BX_reg(context), limit );
SetSelectorLimit16( BX_reg(context), limit );
}
break;
case 0x0009: /* Set selector access rights */
TRACE( "set selector access rights(0x%04x,0x%04x)\n",
BX_reg(context), CX_reg(context) );
SelectorAccessRights16( BX_reg(context), 1, CX_reg(context) );
break;
case 0x000a: /* Allocate selector alias */
TRACE( "allocate selector alias (0x%04x)\n", BX_reg(context) );
SET_AX( context, AllocCStoDSAlias16( BX_reg(context) ) );
if (!AX_reg(context))
{
SET_AX( context, 0x8011 ); /* descriptor unavailable */
SET_CFLAG(context);
}
break;
case 0x000b: /* Get descriptor */
TRACE( "get descriptor (0x%04x)\n", BX_reg(context) );
{
LDT_ENTRY *entry = (LDT_ENTRY*)CTX_SEG_OFF_TO_LIN( context,
context->SegEs,
context->Edi );
wine_ldt_get_entry( BX_reg(context), entry );
}
break;
case 0x000c: /* Set descriptor */
TRACE( "set descriptor (0x%04x)\n", BX_reg(context) );
{
LDT_ENTRY *entry = (LDT_ENTRY*)CTX_SEG_OFF_TO_LIN( context,
context->SegEs,
context->Edi );
wine_ldt_set_entry( BX_reg(context), entry );
}
break;
case 0x000d: /* Allocate specific LDT descriptor */
FIXME( "allocate descriptor (0x%04x), stub!\n", BX_reg(context) );
SET_AX( context, 0x8011 ); /* descriptor unavailable */
SET_CFLAG( context );
break;
case 0x000e: /* Get Multiple Descriptors (1.0) */
FIXME( "get multiple descriptors - unimplemented\n" );
break;
case 0x000f: /* Set Multiple Descriptors (1.0) */
FIXME( "set multiple descriptors - unimplemented\n" );
break;
case 0x0100: /* Allocate DOS memory block */
TRACE( "allocate DOS memory block (0x%x paragraphs)\n", BX_reg(context) );
{
DWORD dw = GlobalDOSAlloc16( (DWORD)BX_reg(context) << 4 );
if (dw) {
SET_AX( context, HIWORD(dw) );
SET_DX( context, LOWORD(dw) );
} else {
SET_AX( context, 0x0008 ); /* insufficient memory */
SET_BX( context, DOSMEM_Available() >> 4 );
SET_CFLAG(context);
}
break;
}
case 0x0101: /* Free DOS memory block */
TRACE( "free DOS memory block (0x%04x)\n", DX_reg(context) );
{
WORD error = GlobalDOSFree16( DX_reg(context) );
if (error) {
SET_AX( context, 0x0009 ); /* memory block address invalid */
SET_CFLAG( context );
}
}
break;
case 0x0102: /* Resize DOS Memory Block */
FIXME( "resize DOS memory block (0x%04x, 0x%x paragraphs) - unimplemented\n",
DX_reg(context), BX_reg(context) );
break;
case 0x0200: /* get real mode interrupt vector */
TRACE( "get realmode interupt vector (0x%02x)\n",
BL_reg(context) );
{
FARPROC16 proc = DOSVM_GetRMHandler( BL_reg(context) );
SET_CX( context, SELECTOROF(proc) );
SET_DX( context, OFFSETOF(proc) );
}
break;
case 0x0201: /* set real mode interrupt vector */
TRACE( "set realmode interrupt vector (0x%02x, 0x%04x:0x%04x)\n",
BL_reg(context), CX_reg(context), DX_reg(context) );
DOSVM_SetRMHandler( BL_reg(context),
(FARPROC16)MAKESEGPTR(CX_reg(context), DX_reg(context)) );
break;
case 0x0202: /* Get Processor Exception Handler Vector */
FIXME( "Get Processor Exception Handler Vector (0x%02x)\n",
BL_reg(context) );
if (DOSVM_IsDos32())
{
SET_CX( context, 0 );
context->Edx = 0;
}
else
{
SET_CX( context, 0 );
SET_DX( context, 0 );
}
break;
case 0x0203: /* Set Processor Exception Handler Vector */
FIXME( "Set Processor Exception Handler Vector (0x%02x)\n",
BL_reg(context) );
break;
case 0x0204: /* Get protected mode interrupt vector */
TRACE("get protected mode interrupt handler (0x%02x)\n",
BL_reg(context));
if (DOSVM_IsDos32())
{
FARPROC48 handler = DOSVM_GetPMHandler48( BL_reg(context) );
SET_CX( context, handler.selector );
context->Edx = handler.offset;
}
else
{
FARPROC16 handler = DOSVM_GetPMHandler16( BL_reg(context) );
SET_CX( context, SELECTOROF(handler) );
SET_DX( context, OFFSETOF(handler) );
}
break;
case 0x0205: /* Set protected mode interrupt vector */
TRACE("set protected mode interrupt handler (0x%02x,0x%04x:0x%08lx)\n",
BL_reg(context), CX_reg(context), context->Edx);
if (DOSVM_IsDos32())
{
FARPROC48 handler;
handler.selector = CX_reg(context);
handler.offset = context->Edx;
DOSVM_SetPMHandler48( BL_reg(context), handler );
}
else
{
FARPROC16 handler;
handler = (FARPROC16)MAKESEGPTR( CX_reg(context), DX_reg(context));
DOSVM_SetPMHandler16( BL_reg(context), handler );
}
break;
case 0x0300: /* Simulate real mode interrupt */
TRACE( "Simulate real mode interrupt %02x.\n", BL_reg(context));
DOSVM_CallRMInt( context );
break;
case 0x0301: /* Call real mode procedure with far return */
TRACE( "Call real mode procedure with far return.\n" );
DOSVM_CallRMProc( context, FALSE );
break;
case 0x0302: /* Call real mode procedure with interrupt return */
TRACE( "Call real mode procedure with interrupt return.\n" );
DOSVM_CallRMProc( context, TRUE );
break;
case 0x0303: /* Allocate Real Mode Callback Address */
TRACE( "Allocate real mode callback address.\n" );
DOSVM_AllocRMCB( context );
break;
case 0x0304: /* Free Real Mode Callback Address */
TRACE( "Free real mode callback address.\n" );
DOSVM_FreeRMCB( context );
break;
case 0x0305: /* Get State Save/Restore Addresses */
TRACE("get state save/restore addresses\n");
/* we probably won't need this kind of state saving */
SET_AX( context, 0 );
/* real mode: just point to the lret */
SET_BX( context, DOSVM_dpmi_segments->wrap_seg );
SET_CX( context, 2 );
/* protected mode: don't have any handler yet... */
/* FIXME: Use DI in 16-bit DPMI and EDI in 32-bit DPMI */
FIXME("no protected-mode dummy state save/restore handler yet\n");
SET_SI( context, 0 );
context->Edi = 0;
break;
case 0x0306: /* Get Raw Mode Switch Addresses */
TRACE("get raw mode switch addresses\n");
/* real mode, point to standard DPMI return wrapper */
SET_BX( context, DOSVM_dpmi_segments->wrap_seg );
SET_CX( context, 0 );
/* protected mode, point to DPMI call wrapper */
/* FIXME: Use DI in 16-bit DPMI and EDI in 32-bit DPMI */
/* FIXME: Doesn't work in DPMI32... */
SET_SI( context, DOSVM_dpmi_segments->dpmi_sel );
context->Edi = 8; /* offset of the INT 0x31 call */
break;
case 0x0400: /* Get DPMI version */
TRACE("get DPMI version\n");
{
SYSTEM_INFO si;
GetSystemInfo(&si);
SET_AX( context, 0x005a ); /* DPMI version 0.90 */
SET_BX( context, 0x0005 ); /* Flags: 32-bit, virtual memory */
SET_CL( context, si.wProcessorLevel );
SET_DX( context, 0x0870 ); /* Master/slave interrupt controller base */
}
break;
case 0x0401: /* Get DPMI Capabilities (1.0) */
FIXME( "get dpmi capabilities - unimplemented\n");
break;
case 0x0500: /* Get free memory information */
TRACE("get free memory information\n");
{
MEMORYSTATUS status;
/* the layout is just the same as MEMMANINFO, but without
* the dwSize entry.
*/
struct
{
DWORD dwLargestFreeBlock;
DWORD dwMaxPagesAvailable;
DWORD dwMaxPagesLockable;
DWORD dwTotalLinearSpace;
DWORD dwTotalUnlockedPages;
DWORD dwFreePages;
DWORD dwTotalPages;
DWORD dwFreeLinearSpace;
DWORD dwSwapFilePages;
WORD wPageSize;
} *info = CTX_SEG_OFF_TO_LIN( context, context->SegEs, context->Edi );
GlobalMemoryStatus( &status );
info->wPageSize = getpagesize();
info->dwLargestFreeBlock = status.dwAvailVirtual;
info->dwMaxPagesAvailable = info->dwLargestFreeBlock / info->wPageSize;
info->dwMaxPagesLockable = info->dwMaxPagesAvailable;
info->dwTotalLinearSpace = status.dwTotalVirtual / info->wPageSize;
info->dwTotalUnlockedPages = info->dwTotalLinearSpace;
info->dwFreePages = info->dwMaxPagesAvailable;
info->dwTotalPages = info->dwTotalLinearSpace;
info->dwFreeLinearSpace = info->dwMaxPagesAvailable;
info->dwSwapFilePages = status.dwTotalPageFile / info->wPageSize;
break;
}
case 0x0501: /* Allocate memory block */
{
DWORD size = MAKELONG( CX_reg(context), BX_reg(context) );
BYTE *ptr;
TRACE( "allocate memory block (%ld bytes)\n", size );
ptr = (BYTE *)DPMI_xalloc( size );
if (!ptr)
{
SET_AX( context, 0x8012 ); /* linear memory not available */
SET_CFLAG(context);
}
else
{
SET_BX( context, HIWORD(ptr) );
SET_CX( context, LOWORD(ptr) );
SET_SI( context, HIWORD(ptr) );
SET_DI( context, LOWORD(ptr) );
}
break;
}
case 0x0502: /* Free memory block */
{
DWORD handle = MAKELONG( DI_reg(context), SI_reg(context) );
TRACE( "free memory block (0x%08lx)\n", handle );
DPMI_xfree( (void *)handle );
}
break;
case 0x0503: /* Resize memory block */
{
DWORD size = MAKELONG( CX_reg(context), BX_reg(context) );
DWORD handle = MAKELONG( DI_reg(context), SI_reg(context) );
BYTE *ptr;
TRACE( "resize memory block (0x%08lx, %ld bytes)\n", handle, size );
ptr = (BYTE *)DPMI_xrealloc( (void *)handle, size );
if (!ptr)
{
SET_AX( context, 0x8012 ); /* linear memory not available */
SET_CFLAG(context);
} else {
SET_BX( context, HIWORD(ptr) );
SET_CX( context, LOWORD(ptr) );
SET_SI( context, HIWORD(ptr) );
SET_DI( context, LOWORD(ptr) );
}
}
break;
case 0x0507: /* Set page attributes (1.0) */
FIXME( "set page attributes - unimplemented\n" );
break; /* Just ignore it */
case 0x0600: /* Lock linear region */
TRACE( "lock linear region - ignored (no paging)\n" );
break;
case 0x0601: /* Unlock linear region */
TRACE( "unlock linear region - ignored (no paging)\n" );
break;
case 0x0602: /* Mark real mode region as pageable */
TRACE( "mark real mode region as pageable - ignored (no paging)\n" );
break;
case 0x0603: /* Relock real mode region */
TRACE( "relock real mode region - ignored (no paging)\n" );
break;
case 0x0604: /* Get page size */
TRACE("get pagesize\n");
SET_BX( context, HIWORD(getpagesize()) );
SET_CX( context, LOWORD(getpagesize()) );
break;
case 0x0700: /* Mark pages as paging candidates */
TRACE( "mark pages as paging candidates - ignored (no paging)\n" );
break;
case 0x0701: /* Discard pages */
TRACE( "discard pages - ignored (no paging)\n" );
break;
case 0x0702: /* Mark page as demand-paging candidate */
TRACE( "mark page as demand-paging candidate - ignored (no paging)\n" );
break;
case 0x0703: /* Discard page contents */
TRACE( "discard page contents - ignored (no paging)\n" );
break;
case 0x0800: /* Physical address mapping */
FIXME( "physical address mapping (0x%08lx) - unimplemented\n",
MAKELONG(CX_reg(context),BX_reg(context)) );
break;
case 0x0900: /* Get and Disable Virtual Interrupt State */
TRACE( "Get and Disable Virtual Interrupt State: %ld\n",
NtCurrentTeb()->dpmi_vif );
SET_AL( context, NtCurrentTeb()->dpmi_vif ? 1 : 0 );
NtCurrentTeb()->dpmi_vif = 0;
break;
case 0x0901: /* Get and Enable Virtual Interrupt State */
TRACE( "Get and Enable Virtual Interrupt State: %ld\n",
NtCurrentTeb()->dpmi_vif );
SET_AL( context, NtCurrentTeb()->dpmi_vif ? 1 : 0 );
NtCurrentTeb()->dpmi_vif = 1;
break;
case 0x0902: /* Get Virtual Interrupt State */
TRACE( "Get Virtual Interrupt State: %ld\n",
NtCurrentTeb()->dpmi_vif );
SET_AL( context, NtCurrentTeb()->dpmi_vif ? 1 : 0 );
break;
case 0x0e00: /* Get Coprocessor Status (1.0) */
/*
* Return status in AX bits:
* B0 - MPv (MP bit in the virtual MSW/CR0)
* 0 = numeric coprocessor is disabled for this client
* 1 = numeric coprocessor is enabled for this client
* B1 - EMv (EM bit in the virtual MSW/CR0)
* 0 = client is not emulating coprocessor instructions
* 1 = client is emulating coprocessor instructions
* B2 - MPr (MP bit from the actual MSW/CR0)
* 0 = numeric coprocessor is not present
* 1 = numeric coprocessor is present
* B3 - EMr (EM bit from the actual MSW/CR0)
* 0 = host is not emulating coprocessor instructions
* 1 = host is emulating coprocessor instructions
* B4-B7 - coprocessor type
* 00H = no coprocessor
* 02H = 80287
* 03H = 80387
* 04H = 80486 with numeric coprocessor
* 05H-0FH = reserved for future numeric processors
*/
TRACE( "Get Coprocessor Status\n" );
SET_AX( context, 69 ); /* 486, coprocessor present and enabled */
break;
case 0x0e01: /* Set Coprocessor Emulation (1.0) */
/*
* See function 0x0e00.
* BX bit B0 is new value for MPv.
* BX bit B1 is new value for EMv.
*/
if (BX_reg(context) != 1)
FIXME( "Set Coprocessor Emulation to %d - unimplemented\n",
BX_reg(context) );
else
TRACE( "Set Coprocessor Emulation - ignored\n" );
break;
default:
INT_BARF( context, 0x31 );
SET_AX( context, 0x8001 ); /* unsupported function */
SET_CFLAG(context);
break;
}
}
/**********************************************************************
* INT13_ReadFloppyParams
*
* Read floppy disk parameters.
*/
static void INT13_ReadFloppyParams( CONTEXT *context )
{
#ifdef linux
static const BYTE floppy_params[2][13] =
{
{ 0xaf, 0x02, 0x25, 0x02, 0x12, 0x1b, 0xff, 0x6c, 0xf6, 0x0f, 0x08 },
{ 0xaf, 0x02, 0x25, 0x02, 0x12, 0x1b, 0xff, 0x6c, 0xf6, 0x0f, 0x08 }
};
static const DWORD drive_type_info[7]={
0x0000, /* none */
0x2709, /* 360 K */
0x4f0f, /* 1.2 M */
0x4f09, /* 720 K */
0x4f12, /* 1.44 M */
0x4f24, /* 2.88 M */
0x4f24 /* 2.88 M */
};
unsigned int i;
unsigned int nr_of_drives = 0;
BYTE drive_nr = DL_reg( context );
int floppy_fd;
int r;
struct floppy_drive_params floppy_parm;
WCHAR root[] = {'A',':','\\',0}, drive_root[] = {'\\','\\','.','\\','A',':',0};
HANDLE h;
TRACE("in [ EDX=%08x ]\n", context->Edx );
SET_AL( context, 0 );
SET_BX( context, 0 );
SET_CX( context, 0 );
SET_DH( context, 0 );
for (i = 0; i < MAX_DOS_DRIVES; i++, root[0]++)
if (GetDriveTypeW(root) == DRIVE_REMOVABLE) nr_of_drives++;
SET_DL( context, nr_of_drives );
if (drive_nr > 1) {
/* invalid drive ? */
INT13_SetStatus( context, 0x07 ); /* drive parameter activity failed */
return;
}
drive_root[4] = 'A' + drive_nr;
h = CreateFileW(drive_root, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (h == INVALID_HANDLE_VALUE ||
wine_server_handle_to_fd(h, FILE_READ_DATA, &floppy_fd, NULL))
{
WARN("Can't determine floppy geometry !\n");
INT13_SetStatus( context, 0x07 ); /* drive parameter activity failed */
return;
}
r = ioctl(floppy_fd, FDGETDRVPRM, &floppy_parm);
wine_server_release_fd( h, floppy_fd );
CloseHandle(h);
if(r<0)
{
INT13_SetStatus( context, 0x07 ); /* drive parameter activity failed */
return;
}
SET_BL( context, floppy_parm.cmos );
/*
* CH = low eight bits of max cyl
* CL = max sec nr (bits 5-0),
* hi two bits of max cyl (bits 7-6)
* DH = max head nr
*/
if(BL_reg( context ) && BL_reg( context ) < 7)
{
SET_DH( context, 0x01 );
SET_CX( context, drive_type_info[BL_reg( context )] );
}
context->Edi = (DWORD)floppy_params[drive_nr];
if(!context->Edi)
{
ERR("Get floppy params failed for drive %d\n", drive_nr);
INT13_SetStatus( context, 0x07 ); /* drive parameter activity failed */
return;
}
TRACE("out [ EAX=%08x EBX=%08x ECX=%08x EDX=%08x EDI=%08x ]\n",
context->Eax, context->Ebx, context->Ecx, context->Edx, context->Edi);
INT13_SetStatus( context, 0x00 ); /* success */
/* FIXME: Word exits quietly if we return with no error. Why? */
FIXME("Returned ERROR!\n");
SET_CFLAG( context );
#else
INT13_SetStatus( context, 0x01 ); /* invalid function */
#endif
}
/**********************************************************************
* DOSVM_Int13Handler
*
* Handler for int 13h (disk I/O).
*/
void WINAPI DOSVM_Int13Handler( CONTEXT *context )
{
TRACE( "AH=%02x\n", AH_reg( context ) );
switch( AH_reg( context ) )
{
case 0x00: /* RESET DISK SYSTEM */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x01: /* STATUS OF DISK SYSTEM */
INT13_SetStatus( context, INT13_last_status );
break;
case 0x02: /* READ SECTORS INTO MEMORY */
SET_AL( context, 0 ); /* number of sectors transferred */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x03: /* WRITE SECTORS FROM MEMORY */
SET_AL( context, 0 ); /* number of sectors transferred */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x04: /* VERIFY DISK SECTOR(S) */
SET_AL( context, 0 ); /* number of sectors verified */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x05: /* FORMAT TRACK */
case 0x06: /* FORMAT TRACK AND SET BAD SECTOR FLAGS */
case 0x07: /* FORMAT DRIVE STARTING AT GIVEN TRACK */
INT13_SetStatus( context, 0x0c ); /* unsupported track or invalid media */
break;
case 0x08: /* GET DRIVE PARAMETERS */
if (DL_reg( context ) & 0x80)
{
/* hard disk ? */
INT13_SetStatus( context, 0x07 ); /* drive parameter activity failed */
}
else
{
/* floppy disk */
INT13_ReadFloppyParams( context );
}
break;
case 0x09: /* INITIALIZE CONTROLLER WITH DRIVE PARAMETERS */
case 0x0a: /* FIXED DISK - READ LONG */
case 0x0b: /* FIXED DISK - WRITE LONG */
case 0x0c: /* SEEK TO CYLINDER */
case 0x0d: /* ALTERNATE RESET HARD DISK */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x0e: /* READ SECTOR BUFFER */
case 0x0f: /* WRITE SECTOR BUFFER */
INT13_SetStatus( context, 0x01 ); /* invalid function */
break;
case 0x10: /* CHECK IF DRIVE READY */
case 0x11: /* RECALIBRATE DRIVE */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x12: /* CONTROLLER RAM DIAGNOSTIC */
case 0x13: /* DRIVE DIAGNOSTIC */
INT13_SetStatus( context, 0x01 ); /* invalid function */
break;
case 0x14: /* CONTROLLER INTERNAL DIAGNOSTIC */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x15: /* GET DISK TYPE */
if (DL_reg( context ) & 0x80)
{
/* hard disk ? */
INT13_SetStatus( context, 0x00 ); /* success */
/* type is fixed disk, overwrites status */
SET_AH( context, 0x03 );
}
else
{
/* floppy disk */
INT13_SetStatus( context, 0x00 ); /* success */
/* type is floppy with change detection, overwrites status */
SET_AH( context, 0x02 );
}
break;
case 0x16: /* FLOPPY - CHANGE OF DISK STATUS */
INT13_SetStatus( context, 0x00 ); /* success */
break;
case 0x17: /* SET DISK TYPE FOR FORMAT */
if (DL_reg( context ) < 4)
INT13_SetStatus( context, 0x00 ); /* successful completion */
else
INT13_SetStatus( context, 0x01 ); /* error */
break;
case 0x18: /* SET MEDIA TYPE FOR FORMAT */
if (DL_reg( context ) < 4)
INT13_SetStatus( context, 0x00 ); /* success */
else
INT13_SetStatus( context, 0x01 ); /* error */
break;
case 0x19: /* FIXED DISK - PARK HEADS */
INT13_SetStatus( context, 0x00 ); /* success */
break;
default:
INT_BARF( context, 0x13 );
INT13_SetStatus( context, 0x01 ); /* invalid function */
}
}
