[sdl]
output=opengl
[dosbox]
memsize=32
machine=svga_s3
[cpu]
# The RIO drops comms if an ACK is late by more than a few ms. Empirically
# (2026-07-03) a SLOWER CPU makes it fail SOONER -> the ACK latency is
# dominated by how fast the game processes the RIO packet and replies, so we
# run the CPU as fast as possible:
#  - core=dynamic: recompiler, many x faster than the 'normal' interpreter.
#  - cycles=max: full host speed.
core=dynamic
cputype=pentium
cycles=max
# RIO cockpit controls on COM1 (Phase 5 passthrough), plasma COM2 later.
[serial]
# Custom fork options for the RIO's few-ms ACK deadline:
#  rxpollus:100 -- host-port receive poll tick in microseconds (stock=1000);
#                  discovers inbound bytes ~10x sooner.
#  rxburst:16   -- deliver host-buffered bytes 16x faster than emulated wire
#                  speed. Stock DOSBox re-serializes each received byte at
#                  ~1ms (9600 baud) even though the bytes already paid wire
#                  time on the physical cable -- a 15-byte analog reply got
#                  +14ms of artificial latency, blowing the RIO's window and
#                  dropping the game into its 15-second retry fallback
#                  ("really slow polling").
serial1=directserial realport:COM1 rxpollus:100 rxburst:16
serial2=disabled
[autoexec]
mount c "C:\VWE\TeslaRel410\ALPHA_1"
c:
cd \REL410\BT
set VIDEOFORMAT=svga
set BLASTER=A220 I5 D1 H5 P330 T6
set TEMP=c:\
call setenv.bat r f n n
32rtm.exe -x
btl4opt.exe -egg test.egg
32rtm.exe -u
echo ALPHA1-RUN-DONE
pause