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 := ??"!
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