Bochs/bochs/cpu/todo
Stanislav Shwartsman ab81296e33 Update CHANGES/TODO
Change BX_INFO to BX_DEBUG in read CR4 function
2005-10-23 21:11:32 +00:00

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TODO (know issues in CPU model):
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[!] The following 3DNow! instructions still not implemented:
PF2IW_PqQq
PFNACC_PqQq
PFPNACC_PqQq
PFCMPGE_PqQq
PFCMPGT_PqQq
PFCMPEQ_PqQq
PFMIN_PqQq
PFMAX_PqQq
PFRCP_PqQq
PFRSQRT_PqQq
PFSUB_PqQq
PFSUBR_PqQq
PFADD_PqQq
PFACC_PqQq,
PFMUL_PqQq
PFRCPIT1_PqQq
PFRSQIT1_PqQq
PFRCPIT2_PqQq
[!] CPUID does not report 3DNow! instruction set
[!] Some of APIC functionality (like spurious interrupt vector) still
not implemented
[!] No support for Big Real Mode segmentation
[!] No support of AC flag (aligment checking) and #AC exception
[!] REP NOP is PAUSE (on P4/XEON)
When running in SMP mode, this means that we are in a spin loop.
This processor should yield to the other one, as we are anyhow waiting
for a lock, and any other processor is responsible for this.