FANCO-16 V5
             ===========

V5 is one machine. Choose a program, load it,
and run it. There is no hardware-version
selector and no per-program compatibility
mode.

The CPU, framebuffer, blitter and timer use
the v3 instruction set. SIREN replaces the
sound implementation. Its factory settings
retain the SID-style interface at 0040-005F.
Native generator cores occupy 0100-01FF.
Mixing, filters and delays occupy 0200-02F3.
Phase-restart flags occupy 0070-0071.
Ten touch slots occupy 0080-00A7.
Audio-to-RAM capture occupies 00D0-00E7.
02F4-02FF and 0400-0BFF are ordinary RAM.
There is no old-map alias.

Existing stored v3 programs retain their
original bytes and IDs. The native sound
window was formerly ordinary RAM, however.
An old program using 0100-02F3 as scratch
storage may configure sound. V5 does not
silently rewrite programs or switch maps.
Capture DMA writes RAM; choose a buffer
that does not overlap code or other data.
Earlier 0400-map checks do not prove this
compact map's compatibility.

The arcade lists server uploads live. The
SIREN 0100 Synth + Drums + Scope program uses
the same loader as games. ID: 0xf22a524e.
It has four-note keyboard polyphony plus
four drum generators and dual-tap effects.
Keyboard filtering is shared. PAD SOLO and
FLUTE SOLO are altered compact presets.
Kick and volume ramps run in guest code.
Audio-to-RAM capture now occupies D0-E7.
The stereo scope draws from captured RAM.
The historical 0400-map synth is not a
compact-map app.

Six sound-graphics prototypes are available
at /v5/graphics.html: SIREN Paint, Wave Loom,
Sound Terrain, Echo Garden, Stereo Radar and
Wave Detective. Start enables the audio
clock; output stays muted until you unmute.

CLASSIC SYNTH
-------------
Open /v5/synth.html for a CS01-inspired
monophonic panel and live hex/bit editor.
This is a visual homage running SIREN,
not exact Yamaha-chip emulation.
SYNTH.txt explains the controls and limits.

Developer mode retains source editing,
uploading, telemetry and a capacity test.
The test includes actual canvas writes and
full native SIREN synthesis. Its result is a
measured budget, not a guarantee under heat,
backgrounding or every possible workload.

Audio starts without blocking the machine.
When audio is unavailable, a wall clock keeps
the machine running silently. Pause freezes
virtual time and clears pending output.

Read SPEC.txt for the CPU and memory map.
Read SOUND.txt for SIREN's registers.