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PowerPC emulation status.
The goal of this file is to provide a reference status to avoid regressions.

===============================================================================
PowerPC core emulation status

INSN: instruction set.
      OK => all instructions are emulated
      KO => some insns are missing or some should be removed
      ?  => unchecked
SPR:  special purpose registers set
      OK => all SPR registered (but some may be fake)
      KO => some SPR are missing or should be removed
      ?  => unchecked
MSR:  MSR bits definitions
      OK => all MSR bits properly defined
      KO => MSR definition is incorrect
      ?  => unchecked
IRQ:  input signals definitions (mostly interrupts)
      OK => input signals are properly defined
      KO => input signals are not implemented (system emulation does not work)
      ?  => input signals definitions may be incorrect
MMU:  MMU model implementation
      OK => MMU model is implemented and Linux is able to boot
      KO => MMU model not implemented or bugged
      ?  => MMU model not tested
EXCP: exceptions model implementation
      OK => exception model is implemented and Linux is able to boot
      KO => exception model not implemented or known to be buggy
      ?  => exception model may be incorrect or is untested

Embedded PowerPC cores
***
PowerPC 401:
INSN  OK
SPR   OK 401A1
MSR   OK
IRQ   KO partially implemented
MMU   OK
EXCP  ?

PowerPC 401x2:
INSN  OK
SPR   OK 401B2 401C2 401D2 401E2 401F2
MSR   OK
IRQ   KO partially implemented
MMU   OK
EXCP  ?

PowerPC IOP480:
INSN  OK
SPR   OK IOP480
MSR   OK
IRQ   KO partially implemented
MMU   OK
EXCP  ?

To be checked: 401G2 401B3 Cobra

***
PowerPC 403:
INSN  OK
SPR   OK 403GA 403GB
MMU   OK
MSR   OK
IRQ   KO not implemented
EXCP  ?

PowerPC 403GCX:
INSN  OK
SPR   OK 403GCX
MMU   OK
MSR   OK
IRQ   KO not implemented
EXCP  ?

To be checked: 403GC

***
PowerPC 405:
Checked: 405CRa 405CRb 405CRc 405EP 405GPa 405GPb 405GPc 405GPd 405GPe 405GPR
         Npe405H Npe405H2 Npe405L
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 boots (at least 1 proprietary firmware).
         uboot seems to freeze at boot time.
To be checked: 405D2 405D4 405EZ 405LP Npe4GS3 STB03 STB04 STB25
               x2vp4 x2vp7 x2vp20 x2vp50

XXX: find what is IBM e407b4

***
PowerPC 440:
Checked: 440EPa 440EPb 440GXa 440GXb 440GXc 440GXf 440SP 440SP2
INSN  OK
SPR   OK
MSR   OK
IRQ   KO not implemented
MMU   ?
EXCP  ?

PowerPC 440GP:
Checked: 440GPb 440GPc
INSN  OK
SPR   OK
MSR   OK
IRQ   KO not implemented
MMU   ?
EXCP  ?

PowerPC 440x4:
Checked: 440A4 440B4 440G4 440H4
INSN  OK
SPR   OK
MSR   OK
IRQ   KO not implemented
MMU   ?
EXCP  ?

PowerPC 440x5:
Checked: 440A5 440F5 440G5 440H6 440GRa
INSN  OK
SPR   OK
MSR   OK
IRQ   KO not implemented
MMU   ?
EXCP  ?

To be checked: 440EPx 440GRx 440SPE

***
PowerPC 460: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

PowerPC 460F: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

***
PowerPC e200: (not implemented)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

***
PowerPC e300: (not implemented)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

***
PowerPC e500: (not implemented)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

***
PowerPC e600: (not implemented)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

***
32 bits PowerPC
PowerPC 601: (601 601v2)
INSN  OK
SPR   OK is HID15 only on 601v2 ?
MSR   OK
IRQ   KO not implemented
MMU   ?
EXCP  ?
Remarks: some instructions should have a specific behavior (not implemented)

PowerPC 602: 602
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   ?
EXCP  ? at least timer and external interrupt are OK
Remarks: Linux 2.4 crashes when entering user-mode.
         Linux 2.6.22 boots on this CPU but does not recognize it.

PowerPC 603: (603)
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 boots and properly recognizes the CPU
         Linux 2.6.22 idem.

PowerPC 603e: (603e11)
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 boots and properly recognizes the CPU
         Linux 2.6.22 idem.

PowerPC G2:
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 boots, recognizes the CPU as a 82xx.
         Linux 2.6.22 idem.

PowerPC G2le:
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 does not boots. Same symptoms as 602.
         Linux 2.6.22 boots and properly recognizes the CPU.

PowerPC 604:
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 boots and properly recognizes the CPU.
         Linux 2.6.22 idem.

PowerPC 7x0:
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 boots and properly recognizes the CPU.
         Linux 2.6.22 idem.

PowerPC 750fx:
INSN  OK
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  OK
Remarks: Linux 2.4 boots but does not properly recognizes the CPU.
         Linux 2.6.22 boots and properly recognizes the CPU.

PowerPC 7x5:
INSN  ?
SPR   ?
MSR   ?
IRQ   OK
MMU   ?
EXCP  OK
Remarks: Linux 2.4 does not boot.
         Linux 2.6.22 idem.

PowerPC 7400:
INSN  KO Altivec missing
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  ?  Altivec, ...
Remarks: Linux 2.4 boots and properly recognize the CPU.
         Linux 2.6.22 idem.

PowerPC 7410:
INSN  KO Altivec missing
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  ?  Altivec, ...
Remarks: Linux 2.4 boots and properly recognize the CPU.
         Linux 2.6.22 idem.
   Note that UM says tlbld & tlbli are implemented but this may be a mistake
   as TLB loads are managed by the hardware and the CPU does not implement the
   needed registers.

PowerPC 7441:
INSN  KO Altivec missing
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  ?  Altivec, ...
Remarks: Linux does not have the code to handle TLB miss on this CPU
         Linux 2.6.22 idem.

PowerPC 7450/7451:
INSN  KO Altivec missing
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  ?  Altivec, ...
Remarks: Linux does not have the code to handle TLB miss on this CPU
         Linux 2.6.22 idem.

PowerPC 7445/7447:
INSN  KO Altivec missing
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  ?  Altivec, ...
Remarks: Linux does not have the code to handle TLB miss on this CPU
         Linux 2.6.22 idem.

PowerPC 7455/7457:
INSN  KO Altivec missing
SPR   OK
MSR   OK
IRQ   OK
MMU   OK
EXCP  ?  Altivec, ...
Remarks: Linux does not have the code to handle TLB miss on this CPU
         Linux 2.6.22 idem.

64 bits PowerPC
PowerPC 620: (disabled)
INSN  KO
SPR   KO
MSR   ?
IRQ   KO
MMU   KO
EXCP  KO
Remarks: not much documentation for this implementation...

PowerPC 970:
INSN  KO Altivec missing and more
SPR   KO
MSR   ?
IRQ   OK
MMU   OK
EXCP  KO partially implemented
Remarks: Should be able to boot but there is no hw platform currently emulated.

PowerPC 970FX:
INSN  KO Altivec missing and more
SPR   KO
MSR   ?
IRQ   OK
MMU   OK
EXCP  KO partially implemented
Remarks: Should be able to boot but there is no hw platform currently emulated.

PowerPC Cell:
INSN  KO Altivec missing and more
SPR   KO
MSR   ?
IRQ   ?
MMU   ?
EXCP  ? partially implemented
Remarks: As the core is mostly a 970, should be able to boot.
         SPE are not implemented.

PowerPC 630: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

PowerPC 631: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

POWER4: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

POWER4+: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

POWER5: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

POWER5+: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

POWER6: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

RS64: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

RS64-II: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

RS64-III: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

RS64-IV: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

Original POWER
POWER: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

POWER2: (disabled: lack of detailed specifications)
INSN  KO
SPR   KO
MSR   KO
IRQ   KO
MMU   KO
EXCP  KO

===============================================================================
PowerPC microcontrollers emulation status

Implemementation should be sufficient to boot Linux:
(there seem to be problems with uboot freezing at some point)
- PowerPC 405CR
- PowerPC 405EP

TODO:
- PowerPC 401 microcontrollers emulation
- PowerPC 403 microcontrollers emulation
- more PowerPC 405 microcontrollers emulation
- Fixes / more features for implemented PowerPC 405 microcontrollers emulation
- PowerPC 440 microcontrollers emulation
- e200 microcontrollers emulation
- e300 microcontrollers emulation
- e500 microcontrollers emulation
- e600 microcontrollers emulation

===============================================================================
PowerPC based platforms emulation status

* PREP platform (RS/6000 7043...) - TO BE CHECKED (broken)
- Gentoo Linux live CDROM 1.4
- Debian Linux 3.0
- Mandrake Linux 9

* heathrow PowerMac platform (beige PowerMac) - TO BE CHECKED (broken)
- Gentoo Linux live CDROM 1.4
- Debian Linux 3.0
- Mandrake Linux 9

* mac99 platform (white and blue PowerMac, ...)
- Gentoo Linux live CDROM 1.4 - boots, compiles linux kernel
- Debian Linux woody - boots from CDROM and HDD
- Mandrake Linux 9 - boots from CDROM, freezes during install
- Knoppix 2003-07-13_4 boots from CDROM, pb with X configuration
  distribution bug: X runs with a properly hand-coded configuration.
- rock Linux 2.0 runs from CDROM

* Linux 2.6 support seems deadly broken (used to boot...).

* PowerPC 405EP reference boards:
- can boot Linux 2.4 & 2.6.
  Need to provide a flash image ready to boot for reproductible tests.

TODO:
- URGENT: fix PreP and heathrow platforms
- PowerPC 64 reference platform
- MCA based RS/6000 emulation
- CHRP emulation (not PowerMac)
- PPAR emulation
- ePPAR emulation
- misc PowerPC reference boards emulation

===============================================================================