git.mutantstargoat.com Git - bootcard/blob - tools/gentune.c

   1 #include <stdio.h>
   2 #include <stdint.h>
   3
   4 uint32_t music[] = {
   5         0x0a2f8f00, 0xa11123a1, 0x23a11423, 0x28000023, 0xbe322f8f, 0x25c0391f,
   6         0x4b23a13c, 0x8f500000, 0x23a15a2f, 0x641ab161, 0x476e1ab1, 0x1fbe751c,
   7         0x8223a178, 0xa18925c0, 0x1fbe8c23, 0xaa0000a0, 0
   8 };
   9
  10 struct {
  11         unsigned int cnt;
  12         const char *name;
  13 } notes[] = {
  14         {0, "0"},
  15         {6833, "F3"},
  16         {7239, "E3"},
  17         {8126, "D3"},
  18         {9121, "C3"},
  19         {9664, "B2"},
  20         {12175, "G2"},
  21         {0, 0}
  22 };
  23
  24 const char *pre =
  25         "G2     equ 12175\n"
  26         "C3     equ 9121\n"
  27         "D3     equ 8126\n"
  28         "B2     equ 9664\n"
  29         "F3     equ 6833\n"
  30         "E3     equ 7239\n"
  31         "\n"
  32         "%macro EV 2\n"
  33         "       db %1 >> 4\n"
  34         "       dw %2\n"
  35         "%endmacro\n\n";
  36
  37
  38 int main(void)
  39 {
  40         int i, j;
  41         unsigned char *mptr = (unsigned char*)music;
  42
  43         printf("%s", pre);
  44
  45         printf("music:");
  46         for(i=0; i<22; i++) {
  47                 const char *nn = "?";
  48                 unsigned int tm = (unsigned int)*mptr++ << 4;
  49                 unsigned int cnt = *(uint16_t*)mptr;
  50                 mptr += 2;
  51
  52                 for(j=0; notes[j].name; j++) {
  53                         if(notes[j].cnt == cnt) {
  54                                 nn = notes[j].name;
  55                                 break;
  56                         }
  57                 }
  58
  59                 printf("\tEV  %4u,  %s\n", tm, nn);
  60         }
  61         return 0;
  62 }