Robert Allan JamesandClaude Sonnet 5
59458a0a16
Cursor (Captain Bob: "the only thing we need is a cursor"): vt100_draw_cursor() draws a solid block at the terminal's current position, called from repl.c after the prompt prints and after every keystroke/backspace. vt100_erase_cursor() cleans up the one gap a static cursor has -- Enter/newline moves away from the cursor cell without a character draw ever overwriting it, which left a stray block behind until this fix. HB-ON/HB-OFF (Captain Bob: run a program with or without instrumentation without rebuilding): Converted per-tick DoE logging from a build-time flag (HEARTBEAT_DOE_LOG) to a runtime one. doe_log_tick_row() now self-gates on g_doe_log_enabled (default 1, matching the old default) instead of being compiled out entirely; the call site in vm_runtime.c is unconditional. Two new FORTH words, HB-ON and HB-OFF, flip the flag live. Removed the now-dead HEARTBEAT_DOE_LOG plumbing: the Kconfig symbol, and the -D forwarding in both LOADER_CFLAGS and KERNEL_CFLAGS. Verified: three-arch clean QEMU boot + logs; dictionary word count 466 (463 baseline + ALT+TAB + HB-ON + HB-OFF, exactly the three words added across this session); amd64 screendump confirms the cursor renders correctly after real interactive typing. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
62 lines
2.0 KiB
C
62 lines
2.0 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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Licensed under the StarForth License, Version 1.0
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*/
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/**
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* starkernel/doe_log.h — DoE (Design of Experiments) CSV logger
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*
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* Emits per-heartbeat-tick CSV rows to the serial log, tagged with
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* [HADES][DOE ] so they can be grepped cleanly from the QEMU log.
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*
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* Each row contains the 12 standard heartbeat snapshot fields plus
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* 3 APIC timer fields from TimeTrustState:
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* apic_ticks, time_trust_q48, variance_q48
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*
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* A header row is printed automatically before the first data row.
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*
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* Always compiled in -- gating moved from a build-time flag
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* (HEARTBEAT_DOE_LOG) to a runtime one (g_doe_log_enabled below) so the
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* same build can run with or without per-tick instrumentation, toggled
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* live via the HB-ON/HB-OFF FORTH words (register_doe_log_words()),
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* no rebuild required.
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*/
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#ifndef STARKERNEL_DOE_LOG_H
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#define STARKERNEL_DOE_LOG_H
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#include "vm.h"
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/**
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* Runtime enable flag for doe_log_tick_row() below. Defaults to 1
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* (matches the old HEARTBEAT_DOE_LOG=1 default -- instrumentation on
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* unless explicitly turned off). Toggled by HB-ON/HB-OFF; read, not
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* meant to be written directly outside those two words.
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*/
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extern int g_doe_log_enabled;
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/**
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* Emit one CSV row for the current heartbeat tick, unless
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* g_doe_log_enabled is 0 (a no-op then). Pulls APIC TimeTrustState via
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* heartbeat_state(). Prints the column header once, before the first row
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* ever emitted -- not re-printed on every HB-ON, so a session toggled
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* off and back on stays one continuous CSV rather than getting a second
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* header embedded partway through.
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*
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* @param vm VM instance (used for snapshot data)
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* @param snap Populated HeartbeatTickSnapshot from heartbeat_capture_tick_snapshot()
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*/
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void doe_log_tick_row(VM *vm, const HeartbeatTickSnapshot *snap);
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/**
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* Registers HB-ON ( -- ) and HB-OFF ( -- ), which set g_doe_log_enabled
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* to 1 and 0 respectively.
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*/
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void register_doe_log_words(VM *vm);
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#endif /* STARKERNEL_DOE_LOG_H */
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