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Format of new Phar Lap .EXP file header

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Offset Size Description

00h

2 BYTEs

signature
"P2" for 286 .EXP executable
"P3" for 386 .EXP

02h

WORD

level
01h = flat-model file
02h = multisegmented file

04h

WORD

header size

06h

DWORD

file size in bytes

0Ah

WORD

checksum

0Ch

DWORD

offset of run-time parameters within file (see #01622)

10h

DWORD

size of run-time parameters in bytes

14h

DWORD

offset of relocation table within file

18h

DWORD

size of relocation table in bytes

1Ch

DWORD

offset of segment information table within file (see #01621)

20h

DWORD

size of segment information table in bytes

24h

WORD

size of segment information table entry in bytes

26h

DWORD

offset of load image within file

2Ah

DWORD

size of load image on disk

2Eh

DWORD

offset of symbol table within file or 00000000h

32h

DWORD

size of symbol table in bytes

36h

DWORD

offset of GDT within load image

3Ah

DWORD

size of GDT in bytes

3Eh

DWORD

offset of LDT within load image

42h

DWORD

size of LDT in bytes

46h

DWORD

offset of IDT within load image

4Ah

DWORD

size of IDT in bytes

4Eh

DWORD

offset of TSS within load image

52h

DWORD

size of TSS in bytes

56h

DWORD

minimum number of extra bytes to be allocated at end of program (level 1 executables only)

5Ah

DWORD

maximum number of extra bytes to be allocated at end of program (level 1 executables only)

5Eh

DWORD

base load offset (level 1 executables only)

62h

DWORD

initial ESP

66h

WORD

initial SS

68h

DWORD

initial EIP

6Ch

WORD

initial CS

6Eh

WORD

initial LDT

70h

WORD

initial TSS

72h

WORD

flags
bit 0 : load image is packed
bit 1 : 32-bit checksum is present
bits 4-2 : type of relocation table

74h

DWORD

memory requirements for load image

78h

DWORD

32-bit checksum (optional)

7Ch

DWORD

size of stack segment in bytes

80h

256 BYTEs

reserved (0)

See Also:

#01619,#01623