VM Maker: VMMaker.oscog-eem.2700.mcz

 
Eliot Miranda uploaded a new version of VMMaker to project VM Maker:
http://source.squeak.org/VMMaker/VMMaker.oscog-eem.2700.mcz

==================== Summary ====================

Name: VMMaker.oscog-eem.2700
Author: eem
Time: 3 February 2020, 4:20:23.680549 pm
UUID: 18fdc5b5-cd1b-46be-a6f2-2861de93a618
Ancestors: VMMaker.oscog-eem.2699

Cogit: restore generqation of the MIPSEL cogit.  It needed to define its ABICalleeSavedRegisterMask.

=============== Diff against VMMaker.oscog-eem.2699 ===============

Item was changed:
  ----- Method: CogMIPSELCompiler class>>initializeAbstractRegisters (in category 'class initialization') -----
  initializeAbstractRegisters
  "Assign the abstract registers with the identities/indices of the relevant concrete registers."
 
  "See MIPSConstants>>initializeRegisters for a description of the C ABI."
 
  "Note we can fit all of the abstract registers in C preserved registers, and
  not need to save or restore them at runtime calls."
 
  ReceiverResultReg := S0.
  Arg0Reg := S1.
  Arg1Reg := S2.
  ClassReg := S3.
  SendNumArgsReg := S4.
  TempReg := S5.
  VarBaseReg := S6. "Must be callee saved"
  SPReg := SP.
  FPReg := FP.
  RISCTempReg := AT.
  LinkReg := RA.
 
+ self flag: #OABI. "see e.g. http://refspecs.linuxbase.org/elf/mipsabi.pdf"
+ ABICalleeSavedRegisterMask := self
+ registerMaskFor: S0 and: S1 and: S2 and: S3
+ and: S4 and: S5 and: S6 and: S7.
- self flag: #OABI.
  ABICallerSavedRegisterMask := self
  registerMaskFor: T0 and: T1 and: T2 and: T3
  and: T4 and: T5 and: T6 and: T7 and: T8 and: T9.
  CallerSavedRegisterMask := ABICallerSavedRegisterMask
  bitAnd: (self registerMaskFor: ClassReg and: ReceiverResultReg and: SendNumArgsReg and: Arg0Reg and: Arg1Reg).
 
  NumRegisters := 32.
 
  self flag: #todo.
  "Extra0Reg := ??.
  Extra1Reg := ??.
  Extra2Reg := ??.
  Extra3Reg := ??.
  Extra4Reg := ??.
  Extra5Reg := ??.
  Extra6Reg := ??.
  Extra7Reg := ??."
 
  self flag: #todo.
  "DPFPReg0 := ??.
  DPFPReg1 := ??.
  DPFPReg2 := ??.
  DPFPReg3 := ??.
  DPFPReg4 := ??.
  DPFPReg5 := ??.
  DPFPReg6 := ??.
  DPFPReg7 := ??.
  DPFPReg8 := ??.
  DPFPReg9 := ??.
  DPFPReg10 := ??.
  DPFPReg11 := ??.
  DPFPReg12 := ??.
  DPFPReg13 := ??.
  DPFPReg14 := ??.
  DPFPReg15 := ??"!