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70 lines
1.3 KiB
NASM
70 lines
1.3 KiB
NASM
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;;; Bass and Treble Effect
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;;; By: Daniel Bertrand
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;;; Date: Dec 19th,200
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;;; License: GPL v2
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;;;
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name "Eq2"
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include "emu_constants.asm"
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;;; a and b coefs for bass:
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b_b con 2.736129417e-01 5.240710533e-01 2.620355267e-01
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a_b con 9.560258858e-01 -4.576868881e-01
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;;; a and b coef for treble:
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b_t con -4.982305773e-01 9.964611547e-01 -4.982305773e-01
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a_t con 9.317583774e-01 -4.356836381e-01
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scalein con 2.449e-05, 1.157407407e-04
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scaleout con 128, 16192
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bass control 0.25,#0,#1
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treble control 0.25,#0,#1
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in IO
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out equ in
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tmp dyn
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tmpout dyn
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dly_b sta 0,0
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dly_t sta 0,0
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;;; bass filter(iir):
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macw tmp, C_0, dly_b+1, a_b+1
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macw tmp, tmp, dly_b , a_b
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macw tmp,tmp,in,scalein
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macints tmp, C_0, tmp, C_2
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macs C_0,C_0,C_0,C_0
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macmv dly_b+1,dly_b, dly_b+1, b_b+2
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macmv dly_b,tmp, dly_b, b_b+1
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macw tmp,ACCUM, tmp, b_b
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macs tmp,C_0,bass,tmp
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macints tmpout,C_0,tmp,scaleout
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;;; treble
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macw tmp, C_0, dly_t+1, a_t+1
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macw tmp, tmp, dly_t , a_t
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macw tmp, tmp, in,scalein+1
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macints tmp,C_0,tmp,C_2
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macs C_0,C_0,C_0,C_0
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macmv dly_t+1,dly_t, dly_t+1, b_t+2
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macmv dly_t,tmp, dly_t, b_t+1
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macw tmp,ACCUM, tmp, b_t
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macs tmp,C_0,treble,tmp
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macints out,tmpout,tmp,scaleout+1
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end
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