;disco mixer program ;pot0 = reverb to infinity ;pot1 = flange; zero delay at full counter clockwise ;pot2 = low pass filter (4 pole) equ krt reg0 equ kin reg1 equ kmix reg2 equ lp1al reg3 equ lp1bl reg4 equ lp1ar reg5 equ lp1br reg6 equ lp2al reg7 equ lp2bl reg8 equ lp2ar reg9 equ lp2br reg10 equ stop reg11 equ pbyp reg12 equ fol reg13 equ for reg14 equ rol reg15 equ ror reg16 equ kfl reg17 equ temp reg18 equ rmixl reg19 equ rmixr reg20 equ lbyp reg21 mem ap1 202 mem ap2 541 mem dap1a 2204 mem dap1b 2701 mem del1 4456 mem dap2a 2532 mem dap2b 2201 mem del2 6325 mem fdell 512 mem fdelr 512 equ kap 0.6 equ kql -0.4 ;prepare flange delay pointer: skp run,1 wldr 0,0,512 ;prepare pots to affect control variables: ;pot0 controls reverb time, but also affects input drive level; ;reveb time is moderate up to about mid position, then increases ;to infinity (or nearly) at full position. ;input drive is constant, but decreases at the full pot0 position. ;output mix is varied over the first half of pot0, then remains ;high to the end of pot0's range. rdax pot0,1.999 ;get pot0, clip the upper half of pot0's range. wrax kmix,0 ;write the output mix value rdax pot0,-1 ;get pot0 again, 0 to -1 sof 1,0.999 ;now +1 to 0 sof 1.999,0 ;now +1 until midpint, then decreases to 0 wrax kin,0 ;write the input attenuator value rdax pot0,1 ;get pot0 again wrax krt,1 ;save in krt, keep in ACC sof 1,-0.5 ;subtract 1/2 skp gez,2 ;skp if pot is in upper half of range sof 0,0.5 ;load accumulator with +0.5 wrax krt,0 ;overwrite if pot is in lower half of range ;prepare pot2 for low pass frequency control: rdax pot2,1 ;get pot2 sof 0.35,-0.35 ;ranges -0.3 to 0 exp 1,0 wrax kfl,0 ;write to LP filter control ;now derive filter bypass function (at open condition) rdax pot2,1 ;read pot2 (LP) again sof 1,-0.999 exp 1,0 wrax lbyp,0 ;now do reverb, simple, twin loop, mono drive: rdax adcl,0.25 rdax adcr,0.25 ;get inputs, leave headroom mulx kin ;scale by input attenuator rda ap1#,kap ;4 all passes: wrap ap1,-kap rda ap2#,kap wrap ap2,-kap wrax temp,0 ;write ap output to temp reg rda del2#,1 ;do reverb loop: mulx krt rdax temp,1 rda dap1a#,kap wrap dap1a,-kap rda dap1b#,kap wrap dap1b,-kap wra del1,0 rda del1#,1 mulx krt rdax temp,1 rda dap2a#,kap wrap dap2a,-kap rda dap2b#,kap wrap dap2b,-kap wra del2,0 ;now mix the inputs with the reverb: rdax adcl,-1 rda del1,1 mulx pot0 rdax adcl,1 wra fdell,0 ;write temp reverb output rdax adcr,-1 rda del2,1 mulx pot0 rdax adcr,1 wra fdelr,0 ;Reverb outputs are in flange delays. ;now do flange: cho rda,rmp0,reg|compc,fdell cho rda,rmp0,0,fdell+1 sof 0.707,0 rda fdell,0.707 wrax fol,0 cho rda,rmp0,compc,fdelr cho rda,rmp0,0,fdelr+1 sof 0.707,0 rda fdelr,0.707 wrax for,0 ;get LFO pointer position and control with pot1: cho rdal,rmp0 ;get pointer from ramp 0 rdax pot1,-0.03 ;add in pot 1 wrax rmp0_rate,1 ;write difference to ramp so that ;pointer will track pot1 ;now do low pass filter, stereo: rdax lp1al,1 mulx kfl rdax lp1bl,1 wrax lp1bl,-1 rdax lp1al,kql rdax fol,1 mulx kfl rdax lp1al,1 wrax lp1al,0 rdax lp2al,1 mulx kfl rdax lp2bl,1 wrax lp2bl,-1 rdax lp2al,kql rdax lp1bl,1 mulx kfl rdax lp2al,1 wrax lp2al,0 rdax lp1ar,1 mulx kfl rdax lp1br,1 wrax lp1br,-1 rdax lp1ar,kql rdax for,1 mulx kfl rdax lp1ar,1 wrax lp1ar,0 rdax lp2ar,1 mulx kfl rdax lp2br,1 wrax lp2br,-1 rdax lp2ar,kql rdax lp1br,1 mulx kfl rdax lp2ar,1 wrax lp2ar,0 ;mix around filter at extremes: rdax lp2bl,-1 rdax fol,1 mulx lbyp rdax lp2bl,1 wrax dacl,0 rdax lp2br,-1 rdax for,1 mulx lbyp rdax lp2br,1 wrax dacr,0我爱AV,haose,吾爱av,奇米色,奇米网,奇米影视,奇米第四色在线影院