Code

Fixes to UML and DRC backends#13108

Code

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987123879113 wants to merge 24 commits intomamedev:mastermamedev/mame:masterfrom 987123879113:drc_wip_pr987123879113/mame:drc_wip_prCopy head branch name to clipboard

+1,731-864

Commits

Commits on Dec 22, 2024

• uml: Add new opcode UML_SETFLGS

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  2745f1f

• uml: Add new opcodes MULUH and MULSH

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  147c20d

• uml: Add new opcode BREAK

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• uml: Add note about fcmp opcode flags

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• uml: Fix simplified multiplication and division operations to use correct parameters

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• uml: Enforce limit for shift operand to be consistent with the backends

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• uml: Add additional documentation for opcodes with unclear naming

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• drcbec: Add more methods of accessing OP_CARRY

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• drcbec: Fix flag calculation for BSWAP opcode

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• drcbec: Implement new MULUH/MULSH opcodes

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• drcbec: Fix flag calculation for MULS

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• drcbec: Make calculation for shift and rotation opcodes consistent

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• drcbec: Implement new SETFLGS opcode

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• drcbec: Add stub for BREAK opcode

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• drcbex64: Implement new BREAK, SETFLGS, MULUH, MULSH opcodes + various bug fixes to be consistent with the C backend

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• drcbex86: Implement new BREAK, SETFLGS, MULUH, and MULSH opcodes + various bug fixes to be consistent with the C backend

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• ppcdrc: Change MULLWx/MULLWOx to use new MULSH opcode

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Commits on Dec 23, 2024

• drcbec: Fix subb

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• Use osd_break_into_debugger instead of int3 for OP_BREAK

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• Use lahf/sahf instead of pushfd/popfd

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• Pass message to osd_break_into_debugger

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• Rename MULUH/MULSH to MULULW/MULSLW

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Commits on Dec 25, 2024

• x64: Fix status flag calculations

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• x64: Simplify mululw/mulslw flag calculation

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