Apple-2-SW/apple2_mockingboard
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Add option to generate asm table of frequencies

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Michaelangel007 2017-04-16 07:14:40 -07:00
parent 5d3e3afcb9
commit ef1763aad7
1 changed files with 17 additions and 1 deletions
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18
freq.c
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@ -287,8 +287,14 @@ double MockingboardGetFreq( int tone_period )
// ======================================================================== // ========================================================================
int main() int main( const int nArg, const char *aArg[] )
{ {
(void) nArg;
// 0freq = asm low byte
// 1freq = asm high byte
int is_asm = 1*(aArg[0][0] == '0') +
2*(aArg[0][0] == '1') ;
const char *names[ 12 ] = const char *names[ 12 ] =
{ {
"A ", // 2^( 0/12) "A ", // 2^( 0/12)
@ -321,6 +327,16 @@ int main()
double measure = MockingboardGetFreq( tone ); double measure = MockingboardGetFreq( tone );
double rel_err = (measure - actual) / actual * 100.0; double rel_err = (measure - actual) / actual * 100.0;
if( is_asm )
printf( "%*s.byte $%02X ; %c%d%c %8.3f Hz\n"
, 8, " "
,(tone >> ((is_asm-1) * 8)) & 0xFF
, names[ half_step ][0]
, octave + (half_step > 2)
, names[ half_step ][1]
, actual
);
else
printf( "%c%d%c %8.3f Hz -> $%04X ~%8.3f Hz (%5.3f %%)\n" printf( "%c%d%c %8.3f Hz -> $%04X ~%8.3f Hz (%5.3f %%)\n"
, names[ half_step ][0] , names[ half_step ][0]
, octave + (half_step > 2) , octave + (half_step > 2)