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Comprehensive technical documentation covering: - Hardware: OCS/ECS/AGA custom chip registers, Copper & Blitter deep dives - Boot sequence: cold boot through startup-sequence - Binary format: HUNK executable spec, relocation, debug info - Linking & ABI: .fd files, LVO tables, register calling conventions - Exec kernel: tasks, interrupts, memory, signals, semaphores - AmigaDOS: file I/O, FFS/OFS layout, CLI/Shell scripting - Graphics: planar bitmaps, Copper programming, HAM/EHB modes - Intuition: screens, windows, IDCMP, BOOPSI - Devices: trackdisk, SCSI, serial, timer, audio, keyboard - Libraries: utility, expansion, IFFParse, locale, ARexx - Networking: bsdsocket API, SANA-II, TCP/IP stack comparison - Toolchain: GCC, vasm/vlink, SAS/C, NDK, debugging - Reverse engineering: IDA/Ghidra setup, compiler fingerprints, case studies - CPU & MMU: 68040/060 emulation libs, PMMU, cache management - Driver development: SANA-II, Picasso96/RTG, AHI audio All files include breadcrumb navigation. No local paths or proprietary content.
46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
[← Home](../README.md) · [Libraries](README.md)
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# keymap.library — Keyboard Mapping
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## Overview
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`keymap.library` translates raw keycodes from `keyboard.device` into character codes using the active keymap. Each keymap defines the mapping from physical keys to characters, including dead keys and string sequences.
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---
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## Key Functions
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```c
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/* Map a raw keycode + qualifiers to ASCII: */
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LONG actual = MapRawKey(&inputEvent, buffer, bufsize, NULL);
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/* Returns number of characters, -1 if buffer too small */
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/* Map ANSI code back to raw key: */
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WORD MapANSI(STRPTR string, WORD count,
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STRPTR buffer, WORD length,
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struct KeyMap *keyMap);
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```
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---
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## struct KeyMap
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```c
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/* devices/keymap.h — NDK39 */
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struct KeyMap {
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UBYTE *km_LoKeyMapTypes; /* type array for keys 0x00–0x3F */
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ULONG *km_LoKeyMap; /* mapping array for keys 0x00–0x3F */
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UBYTE *km_LoCapsable; /* caps-lock bitmap */
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UBYTE *km_LoRepeatable; /* auto-repeat bitmap */
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UBYTE *km_HiKeyMapTypes; /* type array for keys 0x40–0x77 */
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ULONG *km_HiKeyMap;
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UBYTE *km_HiCapsable;
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UBYTE *km_HiRepeatable;
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};
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```
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---
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## References
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- NDK39: `devices/keymap.h`, `libraries/keymap.h`
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