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.
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/* $Id$
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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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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <linux/unistd.h>
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#include <linux/head.h>
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#include <linux/ldt.h>
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#include <errno.h>
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#include "neexe.h"
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#include "segmem.h"
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#include "prototypes.h"
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/**********************************************************************
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* PrintFileHeader
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*/
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void
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PrintFileHeader(struct ne_header_s *ne_header)
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{
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printf("ne_header: %c%c\n",
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ne_header->header_type[0],
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ne_header->header_type[1]);
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printf("linker version: %d.%d\n", ne_header->linker_version,
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ne_header->linker_revision);
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printf("format flags: %04.4x\n", ne_header->format_flags);
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printf("automatic data segment: %04.4x\n", ne_header->auto_data_seg);
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printf("CS:IP %04.4x:%04.4x\n", ne_header->cs, ne_header->ip);
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printf("SS:SP %04.4x:%04.4x\n", ne_header->ss, ne_header->sp);
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printf("additional flags: %02.2x\n", ne_header->additional_flags);
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printf("operating system: %02.2x\n", ne_header->operating_system);
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printf("fast load offset: %04.4x\n", ne_header->fastload_offset);
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printf("fast load length: %04.4x\n", ne_header->fastload_length);
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}
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/**********************************************************************
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* PrintSegmentTable
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*/
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void
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PrintSegmentTable(struct ne_segment_table_entry_s *seg_table, int nentries)
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{
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int i;
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for (i = 0; i < nentries; i++)
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{
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printf(" %2d: OFFSET %04.4x, LENGTH %04.4x, ",
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i + 1, seg_table[i].seg_data_offset,
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seg_table[i].seg_data_length);
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printf("FLAGS %04.4x, MIN ALLOC %04.4x\n",
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seg_table[i].seg_flags, seg_table[i].min_alloc);
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}
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}
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/**********************************************************************
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* PrintRelocationTable
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*/
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void
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PrintRelocationTable(char *exe_ptr,
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struct ne_segment_table_entry_s *seg_entry_p,
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int segment)
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{
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struct relocation_entry_s *rep;
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int i;
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int offset;
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u_short n_entries, *sp;
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printf("RELOCATION TABLE %d:\n", segment + 1);
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if (seg_entry_p->seg_data_offset == 0)
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return;
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offset = seg_entry_p->seg_data_length;
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if (offset == 0)
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offset = 0x10000;
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sp = (u_short *) (exe_ptr + seg_entry_p->seg_data_offset * 512 + offset);
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n_entries = *sp;
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rep = (struct relocation_entry_s *) (sp + 1);
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for (i = 0; i < n_entries; i++, rep++)
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{
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printf(" ADDR TYPE %d, TYPE %d, OFFSET %04.4x,",
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rep->address_type, rep->relocation_type, rep->offset);
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printf("TARGET %04.4x %04.4x\n", rep->target1, rep->target2);
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}
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}
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