2c25c3e944
WHAT'S NEW with version 0.0.2:
- Again thanks to Eric Youngdale for some very useful comments.
- The Windows startup code created by Micrsoft C 7.0 now runs
to completion.
- Added a new patch to the kernel to increase the usable size of
the ldt to the full 32 entries currently allowed.
- Imported name relocations are now supported.
- Source code for my infamous test program is now included.
- A handful of basic Windows functions are now emulated. See
"kernel.spec" for examples of how to use the build program.
WHAT'S NEW with version 0.0.1:
- Eric Youngdale contributed countless improvements in memory
efficiency, bug fixes, and relocation.
- The build program has been completed. It now lets you specify
how the main DLL entry point should interface to your emulation
library routines. A brief description of how to build these
specifications is included in the file "build-spec.txt".
- The code to dispatch builtin DLL calls is complete, but untested.
158 lines
4.8 KiB
C
158 lines
4.8 KiB
C
/* $Id: neexe.h,v 1.1 1993/06/09 03:28:10 root Exp root $
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*/
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/*
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* Copyright Robert J. Amstadt, 1993
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*/
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#ifndef NEEXE_H
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#define NEEXE_H
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/*
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* Old MZ header for DOS programs. Actually just a couple of fields
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* from it, so that we can find the start of the NE header.
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*/
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struct mz_header_s
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{
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u_char dont_care1[0x18]; /* MZ Header stuff */
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u_char must_be_0x40; /* 0x40 for non-MZ program */
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u_char dont_care2[0x23]; /* More MZ header stuff */
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u_short ne_offset; /* Offset to extended header */
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};
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/*
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* This is the Windows executable (NE) header.
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*/
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struct ne_header_s
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{
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char header_type[2]; /* Must contain 'N' 'E' */
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u_char linker_version; /* Linker version number */
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u_char linker_revision; /* Linker revision number */
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u_short entry_tab_offset; /* Offset to entry table relative to NE */
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u_short entry_tab_length; /* Length of etnry table in bytes */
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u_long reserved1; /* Reserved by Microsoft */
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u_short format_flags; /* Flags that segments in this file */
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u_short auto_data_seg; /* Automatic data segment number */
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u_short local_heap_length; /* Initial size of local heap */
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u_short stack_length; /* Initial size of stack */
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u_short ip; /* Initial IP */
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u_short cs; /* Initial CS */
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u_short sp; /* Initial SP */
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u_short ss; /* Initial SS */
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u_short n_segment_tab; /* # of entries in segment table */
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u_short n_mod_ref_tab; /* # of entries in module reference tab.*/
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u_short nrname_tab_length; /* Length of nonresident-name table */
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u_short segment_tab_offset; /* Offset to segment table */
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u_short resource_tab_offset;/* Offset to resource table */
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u_short rname_tab_offset; /* Offset to resident-name table */
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u_short moduleref_tab_offset;/* Offset to module reference table */
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u_short iname_tab_offset; /* Offset to imported name table */
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u_long nrname_tab_offset; /* Offset to nonresident-name table */
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u_short n_mov_entry_points; /* # of movable entry points */
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u_short align_shift_count; /* Logical sector alignment shift count */
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u_short n_resource_seg; /* # of resource segments */
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u_char operating_system; /* Flags indicating target OS */
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u_char additional_flags; /* Additional information flags */
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u_short fastload_offset; /* Offset to fast load area */
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u_short fastload_length; /* Length of fast load area */
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u_short reserved2; /* Reserved by Microsoft */
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u_short expect_version; /* Expected Windows version number */
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};
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/*
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* NE Header FORMAT FLAGS
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*/
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#define NE_FFLAGS_SINGLEDATA 0x0001
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#define NE_FFLAGS_MULTIPLEDATA 0x0002
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#define NE_FFLAGS_SELFLOAD 0x0800
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#define NE_FFLAGS_LINKERROR 0x2000
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#define NE_FFLAGS_LIBMODULE 0x8000
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/*
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* NE Header OPERATING SYSTEM
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*/
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#define NE_OSFLAGS_UNKNOWN 0x01
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#define NE_OSFLAGS_WINDOWS 0x04
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/*
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* NE Header ADDITIONAL FLAGS
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*/
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#define NE_AFLAGS_WIN2_PROTMODE 0x02
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#define NE_AFLAGS_WIN2_PROFONTS 0x04
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#define NE_AFLAGS_FASTLOAD 0x08
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/*
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* Segment table entry
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*/
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struct ne_segment_table_entry_s
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{
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u_short seg_data_offset; /* Sector offset of segment data */
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u_short seg_data_length; /* Length of segment data */
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u_short seg_flags; /* Flags associated with this segment */
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u_short min_alloc; /* Minimum allocation size for this */
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};
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/*
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* Segment Flags
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*/
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#define NE_SEGFLAGS_DATA 0x0001
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#define NE_SEGFLAGS_ALLOCATED 0x0002
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#define NE_SEGFLAGS_LOADED 0x0004
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#define NE_SEGFLAGS_MOVEABLE 0x0010
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#define NE_SEGFLAGS_SHAREABLE 0x0020
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#define NE_SEGFLAGS_PRELOAD 0x0040
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#define NE_SEGFLAGS_EXECUTEONLY 0x0080
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#define NE_SEGFLAGS_READONLY 0x0080
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#define NE_SEGFLAGS_RELOC_DATA 0x0100
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#define NE_SEGFLAGS_DISCARDABLE 0x1000
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/*
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* Relocation table entry
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*/
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struct relocation_entry_s
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{
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u_char address_type; /* Relocation address type */
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u_char relocation_type; /* Relocation type */
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u_short offset; /* Offset in segment to fixup */
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u_short target1; /* Target specification */
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u_short target2; /* Target specification */
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};
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/*
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* Relocation address types
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*/
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#define NE_RADDR_LOWBYTE 0
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#define NE_RADDR_SELECTOR 2
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#define NE_RADDR_POINTER32 3
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#define NE_RADDR_OFFSET16 5
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#define NE_RADDR_POINTER48 11
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#define NE_RADDR_OFFSET32 13
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/*
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* Relocation types
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*/
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#define NE_RELTYPE_INTERNAL 0
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#define NE_RELTYPE_ORDINAL 1
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#define NE_RELTYPE_NAME 2
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#define NE_RELTYPE_OSFIXUP 3
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/*
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* DOS PSP
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*/
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struct dos_psp_s
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{
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unsigned short pspInt20;
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unsigned short pspNextParagraph;
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unsigned char pspReserved1;
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unsigned char pspDispatcher[5];
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unsigned long pspTerminateVector;
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unsigned long pspControlCVector;
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unsigned long pspCritErrorVector;
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unsigned short pspReserved2[11];
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unsigned short pspEnvironment;
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unsigned short pspReserved3[23];
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unsigned char pspFCB_1[16];
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unsigned char pspFCB_2[16];
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unsigned char pspCommandTailCount;
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unsigned char pspCommandTail[128];
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};
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#endif /* NEEXE_H */
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