Robert Allan JamesandClaude Sonnet 5
3396e9a7b4
vt100.c: font_8x16/bitmap-mode boot output previously had no scrollback at all -- g_shadow/g_ring were only allocated in vt100_enable_ttf(), so POST/self-test/heartbeat text was gone the instant it scrolled off, recoverable only from the serial log. Gives boot mode its own ring/ shadow pair (bitmap cell geometry, 4096-line capacity), frozen as a snapshot the moment vt100_enable_ttf() switches to the TTF-geometry pair, per the two-independent-rings design scoped with Captain Bob. scrollback_line_at()/scrollback_redraw()/vt100_scroll_back() now walk all four segments (boot ring, boot shadow, TTF ring, TTF shadow) as one continuous history, so PgUp from the REPL reaches back through POST. Three-arch QEMU boot + logs clean (amd64/aarch64/riscv64, no faults, no dictionary/parity regressions). Visual verification that PgUp actually recalls POST text still needs an interactive GTK screendump -- noted as open in FABRIC.md, same pattern as 4.4ab's screendump. Also includes BLOCK_MAP.md/artemis.img regenerated by these builds, and the acceptance-boot logs (plus stray logs from an earlier QEMU-instance collision during testing -- kept per repo convention, logs are audit artifacts, not deleted). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
src/starkernel/
LithosAnanke — the bare-metal UEFI kernel that boots StarForth directly on
hardware (amd64/aarch64/riscv64). Built only via Makefile.starkernel; the
only valid acceptance test is the three-arch QEMU boot (see
.claude/CLAUDE.md), never make test.
kernel_main.c— kernel entry point, driving the boot milestones (console init, PMM, VMM, interrupts, timers, kmalloc heap, VM bootstrap).repl.c— kernel REPL.doe_log.c— kernel-side DoE (Design of Experiments) metrics logging.
Subdirectories:
arch/{amd64,aarch64,riscv64}/— per-architecture support (APIC/GIC/ PLIC interrupt controller, timers, boot/ISR assembly).boot/— UEFI loader, ELF loading, kernel command-line parsing.capsule/— capsule birth/run/load/validate pipeline.hal/— hardware-abstraction-layer implementation (console, framebuffer, VT100, memory, host services).hash/— XXHash64 content-addressing implementation.math/— kernel-build Q48.16 fixed-point arithmetic.memory/— physical/virtual memory managers and the kernel heap.pci/— PCI bus enumeration.virtio/— VirtIO block device driver.vm/— kernel VM subsystem (bootstrap, core interpreter, parity logging, capsule arena).
See include/starkernel/README.md for the corresponding headers.