VM Maker: CogPools-ISAs-eem.10.mcz

 
Eliot Miranda uploaded a new version of CogPools-ISAs to project VM Maker:
http://source.squeak.org/VMMaker/CogPools-ISAs-eem.10.mcz

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

Name: CogPools-ISAs-eem.10
Author: eem
Time: 29 December 2019, 12:58:41.246662 pm
UUID: eae597de-27f6-4682-91c2-40835b4c711c
Ancestors: CogPools-ISAs-eem.9

More accurate ARMv8 instructionIsAnyB:

=============== Diff against CogPools-ISAs-eem.9 ===============

Item was changed:
  ----- Method: ARMv8A64Opcodes class>>instructionIsAnyB: (in category 'testing') -----
  instructionIsAnyB: word
  "C4.1 A64 instruction set encoding on page C4-252
  C4.1.3 Branches, Exception Generating and System instructions"
  | op0_101_op1MSB |
  op0_101_op1MSB := word bitShift: -25.
+ ^op0_101_op1MSB = 2r0101010 "Conditional branch immediate"
+ or: [op0_101_op1MSB = 2r1101011 "Unconditional branch (register)"
+ or: [(op0_101_op1MSB bitAnd: 2r1111110) = 2r1001010 "Unconditional Branch (immediate) BL"
- ^op0_101_op1MSB = 2r0101010 "Conditional branch immediate"
- or: [op0_101_op1MSB = 2r1101011 "Unconditional branch (register)"
- or: [op0_101_op1MSB = 2r1001011 "Unconditional Branch (immediate) BL"
  or: [(op0_101_op1MSB bitAnd: 2r1111110) = 2r0001010]]] "Unconditional branch (immediate) & Compare/Test and branch (immediate)"!