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- Refactored CPU context structure for better readability.
- Enhanced corpse and exception structures with clearer formatting.
- Improved frame structure for consistency.
- Added interrupt flag operations for enabling and disabling interrupts.
- Implemented IDT (Interrupt Descriptor Table) operations including loading and setting gates.
- Created PIC (Programmable Interrupt Controller) initialization and masking functions.
- Developed PIT (Programmable Interval Timer) driver with initialization and handler functions.
- Established common interrupt handler structure and exception handling stubs.
- Added hardware IRQ handling for IRQs 0-15.
- Introduced IDT entry and gate descriptor types for better organization.
- Ensured proper handling of interrupt and exception vectors.
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exception raising
- Added `hardware.zig` for raising hardware exceptions from vectors and interrupts.
- Introduced `raise.zig` to consolidate exception raising functions.
- Created `resource.zig` for raising resource-related exceptions (memory, CPU, file limits).
- Developed `software.zig` for raising software exceptions (assertions, aborts, user-defined).
- Implemented `actions.zig` for parsing and encoding reply actions.
- Added `catch.zig` for handling received exceptions.
- Created `reply.zig` for constructing and sending exception replies.
- Developed `recover` module for managing recovery operations (resume, skip, terminate).
- Implemented rendering modules for displaying exception and context information.
- Established global state management in `state.zig` for tracking exceptions.
- Defined various types (context, exception, frame, identity, port) in `types` directory.
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- Introduced GDT constants, including selectors, access rights, and flags.
- Created GDT entry structures for kernel and user segments, along with TSS descriptors.
- Implemented GDT initialization and loading functions.
- Developed boot sequence phases for CPU and memory initialization.
- Added boot information structure to manage memory regions and kernel details.
- Implemented TSS management, including core-specific TSS setup and stack allocation.
- Established state management for boot sequence phases and TSS.
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additional user stack properties
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AFS with disk info retrieval
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- Renamed I/O port functions for clarity: `write_port_byte` to `out_byte`, `read_port_byte` to `in_byte`, `write_port_word` to `out_word`, `read_port_word` to `in_word`, `write_port_long` to `out_long`, and `read_port_long` to `in_long`.
- Updated import paths for serial, ahci, ata, gpt, keyboard, terminal, and other drivers to reflect new directory structure.
- Replaced instances of `read_file_by_path` with `view_unit_at` in various files for consistency.
- Added new utility functions for AHCI FIS setup and defined types for AHCI and PCI.
- Introduced string copy utilities for handling strings from Kata pointers.
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- Implemented `viewstack` invocation to list contents of a stack.
- Created `attach` invocation for opening attachments with device and unit handling.
- Added `getkeychar` invocation to read a single character from the keyboard.
- Developed `mark` invocation to write to attachments with color support.
- Introduced `seal` invocation to close attachments.
- Implemented `view` invocation to read from attachments.
- Added `wipe` invocation to clear the terminal screen.
- Created `exit` invocation to dissolve a Kata and seal attachments.
- Implemented `postman` invocation for letter passing between parent and child Katas.
- Added `spawn` invocation to create new Katas from executables.
- Implemented `wait` invocation to wait for child Katas to dissolve.
- Added `yield` invocation to voluntarily give up CPU time to Sensei.
- Introduced utility functions for location resolution and path handling.
- Added memory copy and slice utilities for efficient data manipulation.
- Implemented random number generation utilities.
- Added string comparison utilities for easier string handling.
- Introduced integer and pointer conversion utilities for type safety.
- Implemented result handling utilities for invocation results.
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- Updated `mi.zig` to default target path to an empty string.
- Improved context switching in `context.zig` by restoring registers from the context struct.
- Enhanced `loader.zig` to inherit current location from the parent Kata.
- Simplified `getkeychar.zig` by removing unnecessary serial import and error handling.
- Added new invocations: `getlocation.zig` for retrieving current stack location and `postman.zig` for letter passing between Katas.
- Introduced `setlocation.zig` to change current stack location with path resolution.
- Created `nav.zig` for navigating the filesystem with commands to print current location or change it.
- Added `nav.zon` for binary metadata.
- Updated `limits.zig` to define maximum letter length.
- Enhanced `ash.zig` to process navigation letters and improved command execution flow.
- Updated syscall interface in `sys.zig` to handle variable arguments for invocations.
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- Moved ISR and IRQ handler definitions to a new assembly file (isr.zig).
- Simplified IDT setup by using ISR and IRQ handlers from isr.zig.
- Replaced inline assembly for IRQ handlers with calls to new ISR functions.
- Introduced a new context switching mechanism in context.zig for Kata execution.
- Updated syscall entry handling in entry.zig to streamline context saving and restoring.
- Removed redundant context structures and functions from shift.zig.
- Improved clarity and organization of syscall and interrupt handling code.
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functions with a unified syscall interface
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