Ensuring ps1-packer's raw mode uses the i-cache. #1846
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WalkthroughThe pull request modifies the Changes
Sequence DiagramsequenceDiagram
participant Packer as PS1 Packer
participant Stub as Binary Stub
participant Cache as Instruction Cache
Packer->>Stub: Generate Stub
Stub->>Stub: Manipulate RA Register
Stub->>Stub: Set T0 Register
Stub->>Cache: Ensure Cache-Enabled Segment
Stub->>Packer: Return Prepared Binary
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Actionable comments posted: 0
🧹 Nitpick comments (1)
src/supportpsx/ps1-packer.cc (1)
Line range hint
82-157: Consider refactoring thepackmethod to reduce complexity.The
packmethod has high cyclomatic complexity and the changes increase its size. Consider breaking it down into smaller, focused methods:
generateStubcompressDatagenerateBootstrap- etc.
This would improve code maintainability without affecting the i-cache functionality.
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📒 Files selected for processing (1)
src/supportpsx/ps1-packer.cc(3 hunks)
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🪛 GitHub Check: CodeScene Cloud Delta Analysis (main)
src/supportpsx/ps1-packer.cc
[warning] 82-157: ❌ Getting worse: Complex Method
PCSX::PS1Packer::pack already has high cyclomatic complexity, and now it increases in Lines of Code from 256 to 261. This function has many conditional statements (e.g. if, for, while), leading to lower code health. Avoid adding more conditionals and code to it without refactoring.
[warning] 82-157: ❌ Getting worse: Complex Method
PCSX::PS1Packer::pack already has high cyclomatic complexity, and now it increases in Lines of Code from 256 to 261. This function has many conditional statements (e.g. if, for, while), leading to lower code health. Avoid adding more conditionals and code to it without refactoring.
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🔇 Additional comments (2)
src/supportpsx/ps1-packer.cc (2)
82-82: LGTM: Stub size increase is necessary.The increase in stub size from 28 to 48 bytes accommodates the additional instructions needed for i-cache handling.
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🪛 GitHub Check: CodeScene Cloud Delta Analysis (main)
[warning] 82-157: ❌ Getting worse: Complex Method
PCSX::PS1Packer::pack already has high cyclomatic complexity, and now it increases in Lines of Code from 256 to 261. This function has many conditional statements (e.g. if, for, while), leading to lower code health. Avoid adding more conditionals and code to it without refactoring.
Line range hint
137-157: LGTM: Raw mode changes ensure i-cache usage.The changes correctly ensure that the jump to the decompressor code occurs in a segment where the i-cache is enabled by:
- Masking out segment bits using
0x1fffffff- Setting the segment to
0x80000000(kernel segment with cache enabled)- Adjusting the offset to account for the increased stub size
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