| 1 | ===============================================================================
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| 2 | BUILD.NFO -- Information on building AiR-BOOT v1.0.8
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| 3 | ===============================================================================
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| 4 |
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| 5 | Building AiR-BOOT and the support tools has been completely revamped
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| 6 | in this version. The code has been "de-tasmized" so it can now also
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| 7 | be assembled with JWasm, which is the preferred assembler as of this version.
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| 8 |
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| 9 | The DOS batch-files have been replaced by Open Watcom Makefiles that
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| 10 | can be used on: DOS, Windows, OS/2 and Linux.
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| 11 | This greatly enhances the build-environment, which was previously DOS-only.
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| 12 |
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| 13 | The Open Watcom Linker is now used, which obsoletes the use of the (DOS-only)
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| 14 | exe2bin and tlink programs. WLink replaces the functionality of both while
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| 15 | also adding extensive cross-platform support.
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| 16 |
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| 17 | Several cross-reference files are generated, like object disassemblies
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| 18 | and executable header dumps. This aids development in checking for assembler
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| 19 | generation and the correctness of that code.
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| 20 |
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| 21 | The (DOS-only) FIXCODE.COM program that is used to embed the MBR-protection
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| 22 | in the AiR-BOOT image has been replaced by platform specific versions.
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| 23 | This does away with the need to run a DOS-only program in the tool-chain,
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| 24 | and thus enables building AiR-BOOT on Linux.
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| 25 |
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| 26 | The preferred assembler is now JWasm.
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| 27 | While Tasm4/Masm6 and Wasm are also supported, their use should be of an
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| 28 | experimental nature only. Limitations for checking section overlaps
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| 29 | and other assembler specific directives inhibit the use of JWasm to
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| 30 | it's fullest capability.
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| 31 | Since JWasm is open-source and mature, there is no need to support other
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| 32 | assemblers in future releases of AiR-BOOT.
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| 33 |
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| 34 | The JWasmD extended DOS version needs DPMI 'enabled' and XMS set to 0
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| 35 | to be able to run in an eCS DOS session.
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| 36 | The DOS build-environment will probably be discontinued in
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| 37 | the future due to it's many restrictions. DOS specific targets can
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| 38 | be built on the other platforms.
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| 39 |
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| 40 | The Open Watcom tool-chain in combination with JWasm is now the
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| 41 | default tool-chain.
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| 42 |
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| 43 | Building AiR-BOOT v1.0.8 requires the following tools:
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| 44 | - Open Watcom Make Utility v1.9 or higher
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| 45 | - Open Watcom 16-bits C-Compiler v1.9 or higher
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| 46 | - Open Watcom 32-bits C-Compiler v1.9 or higher
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| 47 | - Open Watcom Linker v1.9 or higher
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| 48 | - JWasm Assembler v2.06d or higher
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| 49 |
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| 50 | As a convenience a simple GNUmakefile also exists where a Makefile exists.
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| 51 | The GNUmakefile forwards to the normal Makefile enabing Linux users to run the
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| 52 | familiar "make" command. Target passing is supported.
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| 53 |
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| 54 | Note that only the loader, installer and setaboot targets are built.
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| 55 | No floppy, cd-rom, etc. images.
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| 56 |
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| 57 |
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| 58 | Rousseau.
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