diff options
Diffstat (limited to 'newlib/libc/sys/go32/dpmi.h')
| -rw-r--r-- | newlib/libc/sys/go32/dpmi.h | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/newlib/libc/sys/go32/dpmi.h b/newlib/libc/sys/go32/dpmi.h deleted file mode 100644 index b85df0a..0000000 --- a/newlib/libc/sys/go32/dpmi.h +++ /dev/null @@ -1,151 +0,0 @@ -/* This is file dpmi.h */ -/* -** Copyright (C) 1993 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954 -** -** This file is distributed under the terms listed in the document -** "copying.dj", available from DJ Delorie at the address above. -** A copy of "copying.dj" should accompany this file; if not, a copy -** should be available from where this file was obtained. This file -** may not be distributed without a verbatim copy of "copying.dj". -** -** This file is distributed WITHOUT ANY WARRANTY; without even the implied -** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. -*/ - -#ifndef _DPMI_H_ -#define _DPMI_H_ - - -#include <sys/types.h> - -#ifdef __cplusplus -extern "C" { -#endif - -typedef union { - struct { - u_long edi; - u_long esi; - u_long ebp; - u_long res; - u_long ebx; - u_long edx; - u_long ecx; - u_long eax; - } d; - struct { - u_short di, di_hi; - u_short si, si_hi; - u_short bp, bp_hi; - u_short res, res_hi; - u_short bx, bx_hi; - u_short dx, dx_hi; - u_short cx, cx_hi; - u_short ax, ax_hi; - u_short flags; - u_short es; - u_short ds; - u_short fs; - u_short gs; - u_short ip; - u_short cs; - u_short sp; - u_short ss; - } x; - struct { - u_char edi[4]; - u_char esi[4]; - u_char ebp[4]; - u_char res[4]; - u_char bl, bh, ebx_b2, ebx_b3; - u_char dl, dh, edx_b2, edx_b3; - u_char cl, ch, ecx_b2, ecx_b3; - u_char al, ah, eax_b2, eax_b3; - } h; -} _go32_dpmi_registers; - -typedef struct { - u_long size; - u_long pm_offset; - u_short pm_selector; - u_short rm_offset; - u_short rm_segment; -} _go32_dpmi_seginfo; - -typedef struct { - u_long available_memory; - u_long available_pages; - u_long available_lockable_pages; - u_long linear_space; - u_long unlocked_pages; - u_long available_physical_pages; - u_long total_physical_pages; - u_long free_linear_space; - u_long max_pages_in_paging_file; - u_long reserved[3]; -} _go32_dpmi_meminfo; - -/* returns zero if success, else dpmi error and info->size is max size */ -int _go32_dpmi_allocate_dos_memory(_go32_dpmi_seginfo *info); - /* set size to bytes/16, call, use rm_segment. Do not - change anthing but size until the memory is freed. - If error, max size is returned in size as bytes/16. */ -int _go32_dpmi_free_dos_memory(_go32_dpmi_seginfo *info); - /* set new size to bytes/16, call. If error, max size - is returned in size as bytes/16 */ -int _go32_dpmi_resize_dos_memory(_go32_dpmi_seginfo *info); - /* uses pm_selector to free memory */ - -/* These both use the rm_segment:rm_offset fields only */ -int _go32_dpmi_get_real_mode_interrupt_vector(int vector, _go32_dpmi_seginfo *info); -int _go32_dpmi_set_real_mode_interrupt_vector(int vector, _go32_dpmi_seginfo *info); - -/* These do NOT wrap the function in pm_offset in an iret handler. - You must provide an assembler interface yourself, or alloc one below. - You may NOT longjmp out of an interrupt handler. */ -int _go32_dpmi_get_protected_mode_interrupt_vector(int vector, _go32_dpmi_seginfo *info); - /* puts vector in pm_selector:pm_offset. */ -int _go32_dpmi_set_protected_mode_interrupt_vector(int vector, _go32_dpmi_seginfo *info); - /* sets vector from pm_offset and pm_selector */ -int _go32_dpmi_chain_protected_mode_interrupt_vector(int vector, _go32_dpmi_seginfo *info); - /* sets up wrapper that calls function in pm_offset, chaining to old - handler when it returns */ - -/* These can be used to generate assember IRET-style wrappers for functions */ -int _go32_dpmi_allocate_iret_wrapper(_go32_dpmi_seginfo *info); - /* Put function ptr in pm_offset, call, returns wrapper entry in pm_offset. */ -int _go32_dpmi_free_iret_wrapper(_go32_dpmi_seginfo *info); - /* assumes pm_offset points to wrapper, frees it */ - -/* simulate real mode calls. CS:IP from regs for non-interrupt */ -int _go32_dpmi_simulate_int(int vector, _go32_dpmi_registers *regs); -int _go32_dpmi_simulate_fcall(_go32_dpmi_registers *regs); -int _go32_dpmi_simulate_fcall_iret(_go32_dpmi_registers *regs); - -/* These automatically handle the tasks of restructuring the - real-mode stack for the proper return type. The callback - (info->pm_offset) is called as (*pmcb)(_go32_dpmi_registers *regs); */ -int _go32_dpmi_allocate_real_mode_callback_retf(_go32_dpmi_seginfo *info, _go32_dpmi_registers *regs); - /* points callback at pm_offset, returns seg:ofs of callback addr - in rm_segment:rm_offset. Do not change any fields until freed. - Interface is added to simulate far return */ -int _go32_dpmi_allocate_real_mode_callback_iret(_go32_dpmi_seginfo *info, _go32_dpmi_registers *regs); - /* same, but simulates iret */ -int _go32_dpmi_free_real_mode_callback(_go32_dpmi_seginfo *info); - /* frees callback */ - -/* Only available_memory is guaranteed to be valid. Try - available_physical_pages for phys mem left */ -int _go32_dpmi_get_free_memory_information(_go32_dpmi_meminfo *info); - -/* Convenience functions. These use the above memory info call. - The return value is *bytes* */ -u_long _go32_dpmi_remaining_physical_memory(void); -u_long _go32_dpmi_remaining_virtual_memory(void); - - -#ifdef __cplusplus -} -#endif - -#endif |