Age | Commit message (Collapse) | Author |
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extra : convert_revision : 58448b984447babba708b9dcb1b4939ed35308a6
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extra : convert_revision : 55f89d9f96734e96ae082399df6b0206d112cd6c
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src/arch/x86/isa/main.isa:
Clean up where files are included.
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extra : convert_revision : 0528359432bf0fb9198b63de9611176bc78e07c7
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extra : convert_revision : 7d1a43c5791a2e7e30533746da3dd7036a5b8799
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doesn't compile.
src/arch/x86/isa/decoder/one_byte_opcodes.isa:
src/arch/x86/isa/macroop.isa:
src/arch/x86/isa/main.isa:
src/arch/x86/isa/microasm.isa:
src/arch/x86/isa/microops/base.isa:
src/arch/x86/isa/microops/microops.isa:
src/arch/x86/isa/operands.isa:
src/arch/x86/isa/microops/regop.isa:
src/arch/x86/isa/microops/specop.isa:
Reworking x86's microcode system
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extra : convert_revision : cab66be59ed758b192226af17eddd5a86aa190f3
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and added some comments to main.isa
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extra : convert_revision : 1534ae7d5a9e95bf662d79a04f9286c227541c6c
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seperation between x86 specific parts, and those parts which are implemented in the isa description but could eventually be moved elsewhere.
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rename : src/arch/x86/isa/formats/macroop.isa => src/arch/x86/isa/macroop.isa
extra : convert_revision : 5ab40eedf574fce438d9fe90e00a496dc95c8bcf
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definitions to make figuring out what's what a little easier:
MicroOp: A single operation actually implemented in hardware.
MacroOp: A collection of microops which are executed as a unit.
Instruction: An architected instruction which can be implemented with a macroop or a microop.
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extra : convert_revision : 1cfc8409cc686c75220767839f55a30551aa6f13
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Each statement has an optional label at the beginning, a capitilized microcode class name which is roughly equivalent to a mnemonic in a regular ISA, and then an optional series of operands seperated by white space. The operands are either a decimal constant, a label, or a code fragment surrounded by non nested {}s. Labels are a letter or underscore followed by letters, underscores, or digits. The syntax for describing code segments might need to be changed if a need arrises to have {}s in the code itself.
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extra : convert_revision : 8e5cfdd1a3c9a7e3731fdf6acd615ee82ac2b9b7
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extra : convert_revision : 718f941da74dd3b4557cd21e1772879ac21aa9c6
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what bits decode is done on to reflect where clumps of instructions are.
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extra : convert_revision : 8768676eac25e6a4f0dc50ce2dc576bdcdd6e025
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--HG--
extra : convert_revision : a39a158fec4560f6eb7a6987592c473677c0b1ba
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