Files
TeslaRel410/emulator/render-bridge/pod_render_bgprobe.conf
T
CydandClaude Fable 5 0e763fda1f BT410 5.3.113: the displays lag because the loop is slow, and the loop was slow because the flags were wrong -- authentic OPT.MAK optimizer set adopted
The operator's 'many seconds between display updates', run to ground:

MECHANISM (verified in source AND the shipped exe bytes): main passes
GetTicksPerSecond() as ApplicationManager's frame RATE, so frameDuration
is microscopic and RunMissions runs flat-out -- exactly ONE background
slot per loop frame, shipped and ours alike (ctor constant @0044f2d8 ==
1.0f, read straight out of BTL4OPT.EXE). That slot feeds a 7-task ring;
the gauge renderer gets 1/7th of slots, one ACTIVE gauge per slot, and
the screen blits once per completed wheel pass. The wheel is 136 gauges
-- and the BT_GAUGE_LOG roster dump shows all 136 are real cockpit
instruments (26 armor colormappers, leak gauges, cooling loops, weapon
clusters...): a Tesla pod shows everything at once, so the roster is
AUTHENTIC and must not be trimmed. Per-instrument latency is therefore
7 x 146 / loop_fps -- the loop rate is the only lever.

THE DEFECT: build410.sh compiled -O2 alone. The authentic release tier
(CODE/BT/OPT.MAK) is -O2 -Ot -Oc -Og -O -Ol -Z -Ob -Oe -Oi -Om -Op -Ov.
Adopting it (all 234 TUs clean, no BC4.52 optimizer ICEs) doubled the
loop: 16.7 -> ~30 fps wall on the rig. Shipped fifo throughput is still
~2x ours (11.8KB/s vs 6.4KB/s, governor-conflated) -- residual gap is an
open question pinned in GAUGE-CADENCE-NOTES.md with the operator A/B ask.

Instrumentation kept, cheap and gated: slot/wheel counters on the
[stack] line (BT_STACK_LOG), one-shot roster dump (BT_GAUGE_LOG),
tick-delta timers compile-gated BT_TICK_PROBES (OFF -- guest tick sums
proved to be trap-burst artifacts in the emulator, not costs; wall rates
are the only trustworthy measure). New: MUNGA/APPTASK.CPP shadow,
fifofps.py (true board fps from a fifodump), pod_render_bgprobe.conf.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-04 01:42:08 -05:00

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# pod_render_norio.conf -- pod_render_rec with the RIO serial port OFF.
#
# The emulator log shows a steady stream of serial1 RX OVERRUN errors on
# the RIO pipe, and controls post their events at HighEventPriority
# UNCONDITIONALLY (CONTROLS.HPP:250) -- so a chattering RIO port would
# flood a priority the background pump always serves first, starving the
# priority-0 renderer events the load gate waits on. This conf tests that
# by removing the port entirely. Everything else is identical to the rec
# conf, so a launch here and a hang there isolates the RIO.
#
[sdl]
output=opengl
# higher,higher not highest: HIGH_PRIORITY_CLASS starved the host desktop;
# with the retry patches a rare dropout self-recovers (see gauge_rio.conf).
priority=higher,higher
[dosbox]
memsize=32
machine=svga_s3
[cpu]
core=dynamic
cputype=pentium
cycles=max
[sblaster]
sbtype=sb16
sbbase=220
irq=5
dma=1
hdma=5
[mixer]
# match the EMU8000s' native rate (no resample) and buffer ~60ms so brief
# emulation-thread stalls (RIO retry recovery) don't audibly chop
rate=44100
blocksize=1024
prebuffer=60
[serial]
# RIO on COM1 with the low-latency options (rxpollus/rxburst) so the board's
# few-ms ACK deadline is met; plasma display on COM2 (real pod has both).
# VWE fork namedpipe backend (com0com/realport retired -- COM1/COM2 gone):
# DOSBox = pipe client (retry), vRIO/vPLASMA apps = servers; an unconnected
# pipe behaves as an unplugged cable so the mission still runs. serialnamedpipe.h
serial1=disabled
serial2=namedpipe pipe:vplasma
# live UNBUFFERED game output: DOS char devices are not buffered, so
# redirecting stdout to COM3 lands every line immediately. A normal
# '> file' redirect stays 0 bytes until the process exits, which hides
# all progress on a run that does NOT crash.
serial3=file file:C:\VWE\TeslaRel410\emulator\render-bridge\podlog.txt
[autoexec]
mount c "C:\VWE\TeslaRel410\ALPHA_1"
c:
cd \REL410\BT
set VIDEOFORMAT=svga
rem production pod card init (PARAMETR.BAT:181-186): DIAGNOSE + AWEUTIL per
rem card -- AWEUTIL /S does the EMU8000 bring-up and DRAM detect the HMI SOS
rem driver relies on; skipping it left the cards uninitialized (silent).
rem aweutil /s SKIPPED for now: it verifies the AWE32 GM ROM, which the
rem emulated cards lack (hangs in a retry loop) -- restore once the ROM is
rem dumped from a real card. diagnose /s kept (passes, sets mixer config).
set BLASTER=A220 I5 D1 H5 P330 T6
c:\sb16\diagnose /s
set BLASTER=A240 I7 D3 H6 P300 T6
c:\sb16\diagnose /s
set BLASTER=A220 I5 D1 H5 P330 T6
set TEMP=c:\
rem arena1 city mission (TESTARN.EGG: map=arena1, time=day) with the RIO
rem attached; stdout redirected so mission-load progress survives kills.
set BT_JOINTS=1
set L4VIEWEXT=1
set BT_STACK_LOG=1
set BT_GAUGE_LOG=1
set BT_FORCE_THROTTLE=0.6
set BT_FORCE_TURN=0.25
set HEAPSIZE=15000000
set L4GAUGE=640x480x16
call setenv.bat r s n p
32rtm.exe -x
BTL4REC.EXE -egg testarn.egg > COM3
echo GAME-RC=%errorlevel% >> RC.TXT
32rtm.exe -u
echo ALPHA1-RUN-DONE
pause