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Extend gen-insn-tests.pl to synthesize, for every distinct template across a mnemonic's entire template set that has a modrm-memory- capable operand (mem*, rm*, xmmrm*/ymmrm256/zmmrm512, mmxrm*), two additional candidate lines using [eax+1] and [eax+64] addressing in place of that operand's usual bare-displacement or register form. Whether an instruction has a disp8-encodable form (or, for EVEX, what its compressed-displacement scale factor is) is instruction-specific, so rather than computing the exact boundary per instruction these two fixed offsets are used as a baseline: +1 is unambiguously disp8- encodable everywhere, and +64 lands past the disp8 boundary for byte-granular encodings while still being a clean multiple of the larger EVEX compressed-displacement scales. [eax+N] (rather than a bare displacement, or a bit-width-specific base register) is used because it's valid addressing syntax at every --bits width via the 0x67 address-size prefix, confirmed empirically. Candidates are routed through the same staged, cumulative probe as the hireg/apxreg/EVEX-decorator buckets, so one bad candidate (e.g. an instruction with memory-operand restrictions this generator doesn't model) can't cost a mnemonic its pre-existing coverage. Regenerated travis/insns/ (2606 mnemonics, 16 dropped, unchanged from before; 1987 mnemonics gained at least one disp-boundary line). Validated: nasm-t.py run against a scratch regeneration is 6955/6955 PASS/0 FAIL with per-mnemonic bit-width success counts identical to the previous committed baseline, and make -j32 travis passes in ~26s. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> |
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| asm | ||
| autoconf | ||
| common | ||
| config | ||
| contrib | ||
| disasm | ||
| doc | ||
| editors | ||
| include | ||
| macros | ||
| misc | ||
| Mkfiles | ||
| nasmlib | ||
| nsis | ||
| output | ||
| perllib | ||
| stdlib | ||
| templates | ||
| test | ||
| tools | ||
| travis | ||
| win | ||
| x86 | ||
| zlib | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| AUTHORS | ||
| autogen.sh | ||
| ChangeLog | ||
| CHANGES | ||
| configure.ac | ||
| INSTALL | ||
| LICENSE | ||
| Makefile.in | ||
| nasm.spec.in | ||
| nasm.spec.sed | ||
| nasm.txt | ||
| ndisasm.txt | ||
| README.md | ||
| SubmittingPatches | ||
| travis.mk.in | ||
| version | ||
| version.pl | ||
NASM, the Netwide Assembler
Many many developers all over the net respect NASM for what it is: a widespread (thus netwide), portable (thus netwide!), very flexible and mature assembler tool with support for many output formats (thus netwide!!).
Now we have good news for you: NASM is licensed under the "simplified" (2-clause) BSD license. This means its development is open to even wider society of programmers wishing to improve their lovely assembler.
Visit our nasm.us website for more details.
With best regards, the NASM crew.