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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| en:docs:tk:formats:newexe [2024/09/25 06:08] – prokushev | en:docs:tk:formats:newexe [2024/10/13 14:35] (current) – prokushev | ||
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| + | ====== New Executable file format ====== | ||
| + | |||
| + | New Executable (NE) file format used by set of operating system including OS/2, Windows, Multitasking MS-DOS 4 and set of DOS Extenders. It is designed to be store on disk and in-memory usage. In-disk format is same for all OSes, but In-memory usage is mostly specific for Windows systems. | ||
| + | |||
| ^ Offset ^ Size ^ Name ^ Description ^ | ^ Offset ^ Size ^ Name ^ Description ^ | ||
| | 00h | WORD | ne_magic | Signature word NEMAGIC | | | 00h | WORD | ne_magic | Signature word NEMAGIC | | ||
| Line 71: | Line 75: | ||
| } ns_union; | } ns_union; | ||
| }; | }; | ||
| + | |||
| + | Relocation table header | ||
| ^ Offset ^ Size ^ Name ^ Description ^ | ^ Offset ^ Size ^ Name ^ Description ^ | ||
| - | | 00h | WORD | nr_nreloc | ??? | | + | | 00h | WORD | nr_nreloc | Number of relocation table entries |
| + | Relocation table entry | ||
| + | |||
| + | ^ Offset ^ Size ^ Name ^ Description ^ | ||
| + | | 00h | char | nr_stype | Source type (0Fh = NRSTYP - source mask): 00h = LOBYTE, 02h = SEGMENT, 03h = FAR_ADDR (32-bit pointer), 05h = OFFSET (16-bit offset) | | ||
| + | | 01h | char | nr_flags | Flags byte (03h = TARGET_MASK): | ||
| + | | 02h | WORD | nr_soff | Offset within this segment of the source chain. If the ADDITIVE flag is set, then target value is added to the source contents, instead of replacing the source and following the chain. The source chain is an 0FFFFh terminated linked list within this segment of all references to the target | | ||
| + | | Internal fixup |||| | ||
| + | | 04h | char | nr_segno | Segment number (for fixed segment) or 0FFh (for movable segment) | | ||
| + | | 05h | char | nr_res | Reserved (usually zero) | | ||
| + | | 06h | WORD | nr_entry | Entry table number (for movable segment) offset segment | | ||
| + | | Import |||| | ||
| + | | 04h | WORD | nr_mod | ??? | | ||
| + | | 06h | WORD | nr_proc | ??? | | ||
| + | | OS Fixup |||| | ||
| + | | 04h | WORD | nr_ostype | ??? | | ||
| + | | 06h | WORD | nr_osres | ??? | | ||
| - | struct new_rlc { | ||
| - | char nr_stype; | ||
| - | char nr_flags; | ||
| - | WORD nr_soff; | ||
| - | union { | ||
| - | struct { | ||
| - | char nr_segno; | ||
| - | char nr_res; | ||
| - | WORD nr_entry; | ||
| - | } nr_intref; | ||
| - | struct { | ||
| - | WORD nr_mod; | ||
| - | WORD nr_proc; | ||
| - | } nr_import; | ||
| - | struct { | ||
| - | WORD nr_ostype; | ||
| - | WORD nr_osres; | ||
| - | } nr_osfix; | ||
| - | } nr_union; | ||
| - | }; | ||
| ^ Offset ^ Size ^ Name ^ Description ^ | ^ Offset ^ Size ^ Name ^ Description ^ | ||