diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/ntdrv/int86.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/ntdrv/int86.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/ntdrv/int86.c b/board/MAI/bios_emulator/scitech/src/pm/ntdrv/int86.c deleted file mode 100644 index c82648b787..0000000000 --- a/board/MAI/bios_emulator/scitech/src/pm/ntdrv/int86.c +++ /dev/null @@ -1,251 +0,0 @@ -/**************************************************************************** -* -* SciTech OS Portability Manager Library -* -* ======================================================================== -* -* The contents of this file are subject to the SciTech MGL Public -* License Version 1.0 (the "License"); you may not use this file -* except in compliance with the License. You may obtain a copy of -* the License at http://www.scitechsoft.com/mgl-license.txt -* -* Software distributed under the License is distributed on an -* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or -* implied. See the License for the specific language governing -* rights and limitations under the License. -* -* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. -* -* The Initial Developer of the Original Code is SciTech Software, Inc. -* All Rights Reserved. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: 32-bit Windows NT device drivers. -* -* Description: Implementation for the real mode software interrupt -* handling functions. -* -****************************************************************************/ - -#include "pmapi.h" -#include "drvlib/os/os.h" -#include "sdd/sddhelp.h" -#include "mtrr.h" -#include "oshdr.h" - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -REMARKS: -We do have limited BIOS access under Windows NT device drivers. -****************************************************************************/ -ibool PMAPI PM_haveBIOSAccess(void) -{ - /* Return false unless we have full buffer passing! */ - return false; -} - -/**************************************************************************** -PARAMETERS: -len - Place to store the length of the buffer -rseg - Place to store the real mode segment of the buffer -roff - Place to store the real mode offset of the buffer - -REMARKS: -This function returns the address and length of the global VESA transfer -buffer that is used for communicating with the VESA BIOS functions from -Win16 and Win32 programs under Windows. -****************************************************************************/ -void * PMAPI PM_getVESABuf( - uint *len, - uint *rseg, - uint *roff) -{ - /* No buffers supported under Windows NT (Windows XP has them however if */ - /* we ever decide to support this!) */ - return NULL; -} - -/**************************************************************************** -REMARKS: -Issue a protected mode software interrupt. -****************************************************************************/ -int PMAPI PM_int386( - int intno, - PMREGS *in, - PMREGS *out) -{ - PMSREGS sregs; - PM_segread(&sregs); - return PM_int386x(intno,in,out,&sregs); -} - -/**************************************************************************** -REMARKS: -Map a real mode pointer to a protected mode pointer. -****************************************************************************/ -void * PMAPI PM_mapRealPointer( - uint r_seg, - uint r_off) -{ - /* Not used for Windows NT drivers! */ - return NULL; -} - -/**************************************************************************** -REMARKS: -Allocate a block of real mode memory -****************************************************************************/ -void * PMAPI PM_allocRealSeg( - uint size, - uint *r_seg, - uint *r_off) -{ - /* Not supported in NT drivers */ - (void)size; - (void)r_seg; - (void)r_off; - return NULL; -} - -/**************************************************************************** -REMARKS: -Free a block of real mode memory. -****************************************************************************/ -void PMAPI PM_freeRealSeg( - void *mem) -{ - /* Not supported in NT drivers */ - (void)mem; -} - -/**************************************************************************** -REMARKS: -Issue a real mode interrupt (parameters in DPMI compatible structure) -****************************************************************************/ -void PMAPI DPMI_int86( - int intno, - DPMI_regs *regs) -{ - /* Not used in NT drivers */ -} - -/**************************************************************************** -REMARKS: -Call a V86 real mode function with the specified register values -loaded before the call. The call returns with a far ret. -****************************************************************************/ -void PMAPI PM_callRealMode( - uint seg, - uint off, - RMREGS *regs, - RMSREGS *sregs) -{ - /* TODO!! */ -#if 0 - CLIENT_STRUCT saveRegs; - - /* Bail if we do not have BIOS access (ie: the VxD was dynamically - * loaded, and not statically loaded. - */ - if (!_PM_haveBIOS) - return; - - TRACE("SDDHELP: Entering PM_callRealMode()\n"); - Begin_Nest_V86_Exec(); - LoadV86Registers(&saveRegs,regs,sregs); - Simulate_Far_Call(seg, off); - Resume_Exec(); - ReadV86Registers(&saveRegs,regs,sregs); - End_Nest_Exec(); - TRACE("SDDHELP: Exiting PM_callRealMode()\n"); -#endif -} - -/**************************************************************************** -REMARKS: -Issue a V86 real mode interrupt with the specified register values -loaded before the interrupt. -****************************************************************************/ -int PMAPI PM_int86( - int intno, - RMREGS *in, - RMREGS *out) -{ - /* TODO!! */ -#if 0 - RMSREGS sregs = {0}; - CLIENT_STRUCT saveRegs; - ushort oldDisable; - - /* Disable pass-up to our VxD handler so we directly call BIOS */ - TRACE("SDDHELP: Entering PM_int86()\n"); - if (disableTSRFlag) { - oldDisable = *disableTSRFlag; - *disableTSRFlag = 0; - } - Begin_Nest_V86_Exec(); - LoadV86Registers(&saveRegs,in,&sregs); - Exec_Int(intno); - ReadV86Registers(&saveRegs,out,&sregs); - End_Nest_Exec(); - - /* Re-enable pass-up to our VxD handler if previously enabled */ - if (disableTSRFlag) - *disableTSRFlag = oldDisable; - - TRACE("SDDHELP: Exiting PM_int86()\n"); -#else - *out = *in; -#endif - return out->x.ax; -} - -/**************************************************************************** -REMARKS: -Issue a V86 real mode interrupt with the specified register values -loaded before the interrupt. -****************************************************************************/ -int PMAPI PM_int86x( - int intno, - RMREGS *in, - RMREGS *out, - RMSREGS *sregs) -{ - /* TODO!! */ -#if 0 - CLIENT_STRUCT saveRegs; - ushort oldDisable; - - /* Bail if we do not have BIOS access (ie: the VxD was dynamically - * loaded, and not statically loaded. - */ - if (!_PM_haveBIOS) { - *out = *in; - return out->x.ax; - } - - /* Disable pass-up to our VxD handler so we directly call BIOS */ - TRACE("SDDHELP: Entering PM_int86x()\n"); - if (disableTSRFlag) { - oldDisable = *disableTSRFlag; - *disableTSRFlag = 0; - } - Begin_Nest_V86_Exec(); - LoadV86Registers(&saveRegs,in,sregs); - Exec_Int(intno); - ReadV86Registers(&saveRegs,out,sregs); - End_Nest_Exec(); - - /* Re-enable pass-up to our VxD handler if previously enabled */ - if (disableTSRFlag) - *disableTSRFlag = oldDisable; - - TRACE("SDDHELP: Exiting PM_int86x()\n"); -#else - *out = *in; -#endif - return out->x.ax; -} |
