rajamesandJunie
a8b70e88d3
Source tree reorganization: - Move StarForth v3 engine to v3/ (src/, include/, Makefile) - Move kernel to kernel/ (src/, include/, linker/, Makefile) - Create v4/ skeleton for F18-ISA golden model (DECOMPOSITION.md, JUSTIFICATION.md) - Move FABRIC-0..4.md to docs/fabric/ - Move ONTOLOGY.md and ROADMAP.md to docs/ Board infrastructure: - Add boards/ser5/, boards/raspi/, boards/milkv/, boards/zynq7020/ - Each board has board.mk (ISA, CPU flags, boot recipe) and README.md - Root Makefile becomes thin dispatcher: boot_image, all, clean, docs take TARGET - make boot_image TARGET=SER5|RASPI|MILKV builds one GPT/MBR image per board - ZYNQ7020 target exists but stops with clear error (ARMv7 port not built yet) - scripts/mkdiskimage.sh builds disk images for all boards Docs pipeline: - docs/book/ with LaTeX master (main.tex) and Makefile - pandoc converts Markdown to LaTeX at build time - Two Lua filters: table-widths.lua (wide tables wrap), code-breaks.lua (inline code breaks) - make docs builds single PDF (754 pages, 0 missing characters) - make docs TARGET=<board> adds board appendix - build/docs/<book|board>/meta.tex stamps git commit into PDF Bug fixes: - 42 include paths that only worked by accident now use correct relative paths - clang-18 hardcode replaced with configurable CC variable (fixed aarch64 build) - Pi 5: kernel_2712.img linked at 0x80000, .bss zeroed, memory reserved - Doxyfile, .clang-tidy, README.md, Kconfig paths updated Verified: - Hosted v3 build passes 1012 tests, 0 failures - SER5 image boots in QEMU (OVMF), POST passes, K exact (65536 = Q48_ONE) - Milk-V image boots in QEMU (OpenSBI + U-Boot + bootefi), POST passes - make clean TARGET=<board> removes only that board and its ISA objects - make all builds all boards, hosted v3, and docs in one run Co-authored-by: Junie <junie@jetbrains.com>
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/*
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StarForth — Steady-State Virtual Machine Runtime
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Copyright (c) 2023–2025 Robert A. James
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All rights reserved.
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This file is part of the StarForth project.
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Licensed under the StarForth License, Version 1.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
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This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
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express or implied, including but not limited to the warranties of
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merchantability, fitness for a particular purpose, and noninfringement.
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See the License for the specific language governing permissions and
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limitations under the License.
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StarForth — Steady-State Virtual Machine Runtime
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Copyright (c) 2023–2025 Robert A. James
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All rights reserved.
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This file is part of the StarForth project.
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Licensed under the StarForth License, Version 1.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
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This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
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express or implied, including but not limited to the warranties of
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merchantability, fitness for a particular purpose, and noninfringement.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* arch.h - Architecture abstraction layer for StarKernel
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*
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* Provides a minimal interface used across early boot, interrupt control,
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* low-power halting, timestamp reads, and MMU bring-up.
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*/
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#ifndef STARKERNEL_ARCH_H
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#define STARKERNEL_ARCH_H
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#include <stdint.h>
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/* Early CPU setup prior to enabling higher-level subsystems */
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void arch_early_init(void);
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/* Interrupt control */
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void arch_enable_interrupts(void);
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void arch_disable_interrupts(void);
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void arch_interrupts_init(void);
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/* Halt/idle CPU until the next interrupt */
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void arch_halt(void);
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/* Hard reset the system (does not return) */
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void arch_cold_reset(void) __attribute__((noreturn));
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/* Low-overhead timestamp counter (architecture-specific source) */
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uint64_t arch_read_timestamp(void);
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/* MMU initialization hook (platform-specific implementation) */
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void arch_mmu_init(void);
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/* Architecture-friendly pause/yield hint inside busy loops */
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static inline void arch_relax(void)
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{
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#if defined(__x86_64__) || defined(__i386__)
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__asm__ volatile ("pause");
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#elif defined(__aarch64__)
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__asm__ volatile ("yield");
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#elif defined(__riscv)
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__asm__ volatile ("nop");
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#else
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__asm__ volatile ("" ::: "memory");
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#endif
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}
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#endif /* STARKERNEL_ARCH_H */
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