Aidan Dodds bit-hack
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| // PS/2 keyboard decoder for Altera DE1 Kit | |
| // decode 7 seg | |
| module decode_seven_seg( | |
| input [3:0] dec, | |
| output [6:0] out); | |
| reg [6:0] val; | |
| initial val = 0; |
bit-hack
/ decode_7_seg.v
Last active
October 3, 2018 22:06
decode seven segment display for Altera DE1 kit
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| // decode 7 seg on DE1 kit | |
| module decode_seven_seg( | |
| input clk, | |
| input [3:0] dec, | |
| output [6:0] out); | |
| reg [6:0] val; | |
| initial val = 0; | |
| always @(posedge clk) begin | |
| case (dec) |
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| /* | |
| Fake86: A portable, open-source 8086 PC emulator. | |
| Copyright (C)2010-2013 Mike Chambers | |
| This program is free software; you can redistribute it and/or | |
| modify it under the terms of the GNU General Public License | |
| as published by the Free Software Foundation; either version 2 | |
| of the License, or (at your option) any later version. | |
| This program is distributed in the hope that it will be useful, |
bit-hack
/ pi_calc.cpp
Created
September 27, 2018 00:20
Taylor seried to calculate pi in fixed point
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| #include <stdint.h> | |
| int main() { | |
| const int32_t fx = 1048576; | |
| int32_t z = 4 * fx; | |
| int32_t j = -1; | |
| for (int32_t i = 3; i < 4096; i += 2) { |
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| // from http://blog.nothinguntoward.eu/?p=38 | |
| #include <cstdio> | |
| #include <cmath> | |
| using namespace std; | |
| int main() { | |
| const int width = 80; |
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| ---- ---- ---- ---- | |
| INS_CONST 0016 | |
| ---- ---- ---- ---- | |
| INS_CONST 0101 | |
| INS_CONST 0037 | |
| INS_CONST 0008 | |
| INS_CALL 0000 | |
| INS_CALL 0000 | |
| INS_POP 0001 | |
| INS_CONST 0107 |
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| #include <assert.h> | |
| #include <list> | |
| #include <set> | |
| #include <string> | |
| #include <unordered_map> | |
| #include <vector> | |
| // ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- | |
| enum object_type_t { e_none, e_integer, e_string, e_boolean, e_array }; |
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| #include <assert.h> | |
| struct rtti_t { | |
| template <typename type_t> | |
| bool is_a() const { | |
| return _tag == type_t::tag; | |
| } | |
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| import math | |
| def _dct(octave, t): | |
| return math.cos(math.pi * octave * t) | |
| def _product(func, width, accum, octave): | |
| ''' compute the contribution of an octave ''' | |
| p = 0.0 |
bit-hack
/ int_band_lim_wave.c
Last active
July 3, 2018 08:49
16bit signed band limited dithered waveform data
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| static const int16_t bl_sqr_1024[] = { | |
| 0x063e, 0x1288, 0x1e3e, 0x2909, 0x32a0, 0x3ac3, 0x414d, 0x462e, | |
| 0x496a, 0x4b1c, 0x4b6b, 0x4a92, 0x48d7, 0x467f, 0x43d9, 0x4128, | |
| 0x3eaa, 0x3c8f, 0x3b00, 0x3a0f, 0x39c2, 0x3a10, 0x3ae4, 0x3c20, | |
| 0x3da1, 0x3f39, 0x40c8, 0x4228, 0x433c, 0x43f2, 0x443f, 0x4421, | |
| 0x43a6, 0x42da, 0x41d6, 0x40b4, 0x3f92, 0x3e88, 0x3db0, 0x3d16, | |
| 0x3cca, 0x3ccc, 0x3d1c, 0x3dab, 0x3e6a, 0x3f46, 0x402c, 0x4104, | |
| 0x41ba, 0x4240, 0x428d, 0x429a, 0x4269, 0x4200, 0x416b, 0x40bb, | |
| 0x3fff, 0x3f47, 0x3eaa, 0x3e2f, 0x3de3, 0x3dcb, 0x3de7, 0x3e36, | |
| 0x3eac, 0x3f3d, 0x3fde, 0x407b, 0x4108, 0x417b, 0x41c5, 0x41e6, |