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nasm/test/obsolete.asm

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BR 3392590: add warning for valid but obsolete instructions Just becase one is compiling for an old CPU doesn't mean one wants to use obsolete instructions that would not be forward compatible. Rename the "obsolete" warning to "obsolete-removed" and create a new "obsolete-valid" warning to go with it (-w[+-]obsolete controls both options, as usual.) Suggested-by: C. Masloch <pushbx@38.de> Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2019-08-10 05:21:42 +08:00
bits 16
cpu 8086
pop cs
mov cs,ax
cpu 386
pop cs
mov cs,ax
obsolete handing: handle a few more subcases in a useful way Distinguish instructions which have once been valid (OBSOLETE) from those that never saw the light of day (NEVER). Futhermore, flag instructions which devolve to an architectural noop from those with undefined behavior and possibly recycled opcodes. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2019-08-10 05:52:16 +08:00
cpu any
pcommit
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