#REACTOS CYRIX SERIAL#
#REACTOS CYRIX UPDATE#

#REACTOS CYRIX SERIAL#

ReactOS boots, but debug/screen mode is completely broken, booting with serial cable attached in normal mode causes 0x1e BSOD.

Revision of 6x86 with lower power usage and supposedly CMPXCHG8B support. Lacks support for CMPXCHG8B and CPUID is not really exposed, no time stamp counter, Not fully Pentium compatible Tested IBM 6x86 P166+, freeldr fails to start with this system, CPU can't boot Windows XP/2003 ethier. AMD Athlon 64, Sempron 64, Turion 64, Phenom, Phenom II, FX, A series APU, E Series, Ryzen, Opteron, EPYC.Ĭurrently there is no active development for this platformĬurrently there is no port of ReactOS for this platformĬurrently there is no active development of a PowerPC port of ReactOS.Intel Pentium 4/Celeron D (64-bit models), Pentium D, Intel Core 2, Core i3/i5/i7, 64-bit enabled Pentium and Celeron, Xeon, Atom.ReactOS is basically guaranteed to work on all SSE2 capable CPUs at this point, this also covers 64-bit capable x86 CPUs: Generally guaranteed that ReactOS will work on Pentium 4 family and all other 32-bit SSE2 compatible CPUs.

The original Xbox CPU falls into this category since is a Pentium III derivate (733 MHz Coppermine Pentium III/Celeron with 128 KB L2 cache and FSB 133 MHz). SGI Visual Workstation 320/540 uses a Pentium III, but can't boot ReactOS due to not being a PC compatible (ARCS firmware instead of BIOS). It is generally guaranteed that ReactOS will work on Pentium Pro/II/III family and all other i686 class CPUs (without SSE2 support) with some degree of functionality, Pentium Pro lacks the SYSENTER/SYSCALL instruction, they generally support i686 class instructions (like CMOV). There is no guarantee that ReactOS will work as well on Pentium/Pentium MMX family and all other i586 class CPUs as it does on newer chips as these CPUs lacks the SYSENTER/SYSCALL instruction and they generally lack i686 class instructions (like CMOV)

Note: The Cyrix 6x86 CPU appears to the system as if it's an i486 class CPU unless specifically triggered to act as an i586 CPU, however it does expose some i586 class instructions if properly triggered, so it appears in the i586 section.

I486 class CPUs are not able to boot ReactOS due to their lack of the CMPXCHG8B instruction, Windows XP/2003 doesn't boot on them either, the ReactOS minimum requirements also state that a Pentium (a.k.a. AS YOU CAN SEE, THE LIST IS IN ALPHABETICAL ORDER.

#REACTOS CYRIX UPDATE#

Please update this page with the status of each CPU that is tested.

Reactos cyrix