Doc updates for 0.6.8.

The sample formats list is a little unwieldy. Please rearrange and remove as you see fit!

doc/2-interface/formats.md

@@ -7,12 +7,13 @@ this is a list of file formats that Furnace supports.
 - Furnace song (.fur)
 - import:
   - DefleMask module (.dmf)
-  - FamiTracker module (.ftm)
+  - FamiTracker module (.ftm/.0cc/.dnm/.eft)
   - Amiga tracker module (.mod)
   - Scream Tracker 3 module (.s3m)
   - FastTracker 2 module (.xm)
   - Impulse Tracker module (.it)
   - Future Composer module (.fc13/.fc14/.fc/.smod)
+  - TFM Music Maker module (.tfe)
 - export:
   - DefleMask module (.dmf)
   - VGM (.vgm)
@@ -51,3 +52,35 @@ this is a list of file formats that Furnace supports.
   - Wave file (.wav)
   - raw sample data
 - load only:
+  - Apple/SGI sample (.aiff)
+  - Sun/NeXT sample (.au)
+  - Audio Visual Research sample (.avr)
+  - Apple Core Audio File sample (.caf)
+  - HMM Tool Kit sample (.htk)
+  - Amiga IFF/SVX8/SV16 sample (.iff)
+  <!--
+  - GNU Octave 2.0 / Matlab 4.2 sample (.mat)
+  - GNU Octave 2.1 / Matlab 5.0 sample (.mat)
+  -->
+  - GNU Octave/Matlab sample (.mat)
+  - Akai MPC 2k sample (.mpc)
+  - Ensoniq PARIS sample (.paf)
+  - Portable Voice Format sample (.pvf)
+  - RIFF 64 sample (.rf64)
+  - Sound Designer II sample (.sd2)
+  - Midi Sample Dump Standard sample (.sds)
+  - Berkeley/IRCAM/CARL sample (.sf)
+  - Creative Labs sample (.voc)
+  - SoundFoundry WAVE 64 sample (.w64)
+  - NIST Sphere sample (.wav)
+  - Psion Series 3 sample (.wve)
+  - FastTracker 2 sample (.xi)
+  - NES DPCM data (.dmc)
+  - SNES Bit Rate Reduction (.brr)
+  - PMD YM2608 ADPCM-B sample bank (.ppc)
+  - PDR 4-bit AY-3-8910 sample bank (.pps)
+  - FMP YM2608 ADPCM-B sample bank (.pvi)
+  - MDX OKI ADPCM sample bank (.pdx)
+  - FMP 8-bit PCM sample bank (.pzi)
+  - PMD 8-bit PCM sample bank (.p86)
+  - PMD OKI ADPCM sample bank (.p)

doc/4-instrument/fm-opm.md

@@ -52,6 +52,10 @@ these macros allow you to control several parameters of FM per tick.
 
 ## FM Macros
 
+- **Algorithm**,
+  **Feedback**,
+  **LFO > Freq**,
+  **LFO > Amp**: as described above.
 - **AM Depth**: amplitude modulation depth.
 - **PM Depth**: pitch modulation depth.
 - **LFO Speed**: LFO frequency.

doc/4-instrument/fm-opn.md

@@ -56,6 +56,10 @@ these macros allow you to control several parameters of FM per tick.
 
 ## FM Macros
 
+- **Algorithm**,
+  **Feedback**,
+  **LFO > Freq**,
+  **LFO > Amp**: as described above.
 - **LFO Speed**: LFO frequency.
 - **OpMask**: toggles each operator.
 

doc/4-instrument/fm-opz.md

@@ -73,6 +73,10 @@ these macros allow you to control several parameters of FM per tick.
 
 ## FM Macros
 
+- **Algorithm**,
+  **Feedback**,
+  **LFO > Freq**,
+  **LFO > Amp**: as described above.
 - **AM Depth**: amplitude modulation depth.
 - **PM Depth**: pitch modulation depth.
 - **LFO Speed**: LFO frequency.

doc/7-systems/c64.md

@@ -4,7 +4,9 @@ a home computer with a synthesizer-grade sound chip of which people took decades
 
 very popular in Europe and mostly due to the demoscene, which stretched the machine's limbs to no end.
 
-two versions of aforementioned chip exist - 6581 (original chip) and 8580 (improved version with working waveform mixing and somewhat more consistent filter curves).
+two versions of aforementioned chip exist: 6581 (original chip) and 8580 (improved version with working waveform mixing and somewhat more consistent filter curves).
+
+the 6581 version has a hardware bug that causes a loud click whenever a global volume register is updated. these clicks can be used to produce a crude, virtual fourth 4-bit PCM channel. Furnace supports this with the "Commodore 64 (SID 6581) with software PCM" system. the later 8580 revision fixed this problem, making such PCM nearly inaudible; while other PCM playback methods have been invented, Furnace doesn't support them at the moment.
 
 ## effects
 

doc/7-systems/snes.md

@@ -97,6 +97,8 @@ the following options are available in the Chip Manager window:
 - **Echo filter**: adjusts echo filter.
 - **Dec/Hex**: toggles decimal or hexadecimal mode for the filter settings text entry box to the right.
   - SnesLab provides [echo filter explanations and examples](https://sneslab.net/wiki/FIR_Filter#Uses). their example filter strings can be pasted directly into the filter settings text entry box if set to Hex mode.
+- **Disable Gaussian interpolation**: removes sample interpolation, resulting in crisper but aliased sound. not accurate to hardware.
+- **Anti-click**: reduces clicking by use of hardware volume envelopes.
 
 ## ADSR
 

doc/7-systems/vic20.md

@@ -26,3 +26,4 @@ this chip uses the [VIC](../4-instrument/vic.md) instrument editor.
 the following options are available in the Chip Manager window:
 
 - **PAL**: 1.10MHz instead of 1.02MHz.
+- **Disable filtering**: bypasses the hardware's lowpass filter.

doc/7-systems/wonderswan.md

@@ -30,6 +30,12 @@ it has 4 wavetable channels. some of them have additional capabilities:
 
 this chip uses the [WonderSwan](../4-instrument/wonderswan.md) instrument editor.
 
+## chip config
+
+the following option is available in the Chip Manager window:
+
+- **Headphone output**: enables stereo. default is on.
+
 ## channel status
 
 the following icons are displayed when channel status is enabled in the pattern view:

doc/9-guides/emulation-cores.md

@@ -64,3 +64,7 @@ Furnace achieves the authentic sound of videogame hardware by emulating sound ch
 - **AY-3-8910/SSG core**:
   - **MAME**: default core.
   - **AtomicSSG**: SSG core extracted from YM2608-LLE.
+
+- **WonderSwan core**:
+  - **asiekierka new core**: default core. highest accuracy and efficiency.
+  - **Mednafen**: slower and less accurate. included for compatibility with older modules.