source: buchla-68k/ram/etwhar.c

/*
   =============================================================================
        etwhar.c -- waveshape editor - harmonic number field handlers
        Version 5 -- 1987-12-11 -- D.N. Lynx Crowe
   =============================================================================
*/

#include "ram.h"

/*
   =============================================================================
        et_whar() -- load the edit buffer
   =============================================================================
*/

int16_t et_whar(int16_t n)
{
        (void)n;

        sprintf(ebuf, "%02d", curwhrm + 1);
        ebflag = TRUE;
        return(SUCCESS);
}

/*
   =============================================================================
        ef_whar() -- parse (unload) the edit buffer
   =============================================================================
*/

int16_t ef_whar(int16_t n)
{
        register int16_t i, tmpval;

        (void)n;

        ebuf[2] = '\0';                 /* terminate the string in ebuf */
        ebflag = FALSE;

        tmpval = 0;

        for (i = 0; i < 2; i++)         /* convert from ASCII to binary */
                tmpval = (tmpval * 10) + (ebuf[i] - '0');

        if ((tmpval GT NUMHARM) OR (tmpval EQ 0))
                return(FAILURE);

        curwhrm = tmpval - 1;
        newws();
        wdswin(5);
        return(SUCCESS);
}

/*
   =============================================================================
        rd_whar() -- (re)display the field
   =============================================================================
*/

int16_t rd_whar(int16_t nn)
{
        register int16_t n;

        n = nn & 0xFF;
        sprintf(dspbuf, "%02d", curwhrm + 1);

        vbank(0);                       /* display the value */
        vcputsv(waveob, 64, wdbox[n][4], wdbox[n][5],
                wdbox[n][6], wdbox[n][7] + WHRM_OFF, dspbuf, 14);

        return(SUCCESS);
}

/*
   =============================================================================
        nd_whar() -- handle new data entry
   =============================================================================
*/

int16_t nd_whar(int16_t nn, int16_t k)
{
        register int16_t ec, n;

        n = nn & 0xFF;
        ec = stccol - cfetp->flcol;     /* setup edit buffer column */
        ebuf[ec] = (int8_t)(k + '0');
        ebuf[2] = '\0';

        dspbuf[0] = (int8_t)(k + '0');
        dspbuf[1] = '\0';

        vbank(0);
        vcputsv(waveob, 64, WS_ENTRY, wdbox[n][5],
                wdbox[n][6], stccol, dspbuf, 14);

        advwcur();
        return(SUCCESS);
}