x86reference
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Document x87 instruction provenance
The current version of the reference does not document that the instructions fsincos
, fcos
, fsin
, fldenvd
, fsaved
, fprem1
, frstord
, and fstenvd
where only introduced with the 80387 processor.
I think it should be noted that most if not all FP instructions are missing the proc
attribute for when the instruction was first introduced.
It's also worth noting that with 80387 processor instruction, a new proc
value should be added and not rely on the value 03: 80386
because according to Wikipedia:
Released in 1987, a full two years after the 386 chip
Unlike other FP instructions that were introduced with FPU that were released together with their counter-part like the 80287.
The missing proc
attribute is because most of the FP instructions were introduced with 8087.
The 03
means 80387 in this case, the docs are not correct.