Caldari
Civire
3.76
Robert Yannes
Last Active:
over 9 years ago
Birthday:
Jan 1, 1970 (55 years old)
Next Birthday:
Jan 1, 2026 (112 days remaining)
Combat Metrics
Kills
1,197
Losses
190
Efficiency
86.3%
Danger Ratio
0.9%
ISK Metrics
ISK Killed
576.51B ISK
ISK Lost
1.69B ISK
ISK Efficiency
99.7%
ISK Balance
574.81B ISK
Solo Activity
Solo Kills
20
Solo Losses
94
Solo Kill Ratio
1.7%
Solo Efficiency
17.5%
Other Metrics
NPC Losses
16
NPC Loss Ratio
8.4
Avg. Kills/Day
0.1
Activity
Low
Character Biography
Can you give us a short overview of the SIDs internal architecture?
"It's pretty brute-force, I didn't have time to be elegant. Each "voice" consisted of an Oscillator, a Waveform Generator, a Waveform Selector, a Waveform D/A converter, a Multiplying D/A converter for amplitude control and an Envelope Generator for modulation. The analog output of each voice could be sent through a Multimode Analog Filter or bypass the filter and a final Multiplying D/A converter provided overall manual volume control.
As I recall, the Oscillator is a 24-bit phase-accumulating design of which the lower 16-bits are programmable for pitch control. The output of the accumulator goes directly to a D/A converter through a waveform selector. Normally, the output of a phase-accumulating oscillator would be used as an address into memory which contained a wavetable, but SID had to be entirely self-contained and there was no room at all for a wavetable on the chip."
"It's pretty brute-force, I didn't have time to be elegant. Each "voice" consisted of an Oscillator, a Waveform Generator, a Waveform Selector, a Waveform D/A converter, a Multiplying D/A converter for amplitude control and an Envelope Generator for modulation. The analog output of each voice could be sent through a Multimode Analog Filter or bypass the filter and a final Multiplying D/A converter provided overall manual volume control.
As I recall, the Oscillator is a 24-bit phase-accumulating design of which the lower 16-bits are programmable for pitch control. The output of the accumulator goes directly to a D/A converter through a waveform selector. Normally, the output of a phase-accumulating oscillator would be used as an address into memory which contained a wavetable, but SID had to be entirely self-contained and there was no room at all for a wavetable on the chip."