[f40a309] | 1 | /*
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| 2 | =============================================================================
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| 3 | midas.c -- MIDAS-VII main function
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| 4 | Version 26 -- 1989-07-19 -- D.N. Lynx Crowe
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| 5 | =============================================================================
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| 6 | */
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| 7 |
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| 8 | #define DEBUGIT 0
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| 9 |
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| 10 | #include "stddefs.h"
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| 11 | #include "biosdefs.h"
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| 12 | #include "vsdd.h"
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| 13 | #include "hwdefs.h"
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| 14 | #include "wordq.h"
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| 15 | #include "sclock.h"
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| 16 |
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| 17 | #include "graphdef.h"
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| 18 | #include "midas.h"
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| 19 |
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| 20 | #define LCD_TIME ((long)(800 * 240)) /* LCD backlight 'on' time */
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| 21 |
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| 22 | #if DEBUGIT
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| 23 | extern short debugsw;
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| 24 |
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| 25 | short debugmm = 1;
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| 26 | #endif
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| 27 |
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[0580615] | 28 | extern void fpuint(void);
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| 29 | extern void clk_ped(short stat);
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| 30 | extern void pch_ped(short stat);
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[f40a309] | 31 |
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| 32 | extern short (*foot1)(), (*foot2)(), (*pulse1)(), (*pulse2)();
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| 33 |
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| 34 | extern char *end, *etext, *edata;
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| 35 |
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| 36 | extern short clkrun, clksrc, initcfg, ndisp, verbose;
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| 37 |
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| 38 | extern long lcdontm, lcdtime;
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| 39 |
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| 40 | extern short fp_resv[];
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| 41 |
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| 42 | extern char *script0[];
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| 43 |
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| 44 | extern char VerDate[];
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| 45 |
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| 46 | extern struct wordq ptefifo; /* trigger fifo */
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| 47 |
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| 48 | char m7verms[32]; /* version message for the main menu */
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| 49 |
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| 50 | short clkdiv; /* clock divider */
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| 51 |
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| 52 | /* |
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| 53 |
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| 54 | */
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| 55 |
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| 56 | /*
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| 57 | =============================================================================
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| 58 | dopls1() -- process pulse 1 inputs
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| 59 | =============================================================================
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| 60 | */
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[0580615] | 61 |
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[f40a309] | 62 | void dopls1(void)
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| 63 | {
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| 64 | putwq(&ptefifo, 0x1180); /* pulse 1 trigger -> STM fifo */
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| 65 |
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| 66 | if (NOT clkrun) /* check for clock enable */
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| 67 | return; /* done if not enabled */
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| 68 |
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| 69 | if (clksrc EQ CK_PLS24) { /* Pulse 24 mode ? */
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| 70 |
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| 71 | fc_val += 2L; /* 2 clocks per pulse */
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| 72 |
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| 73 | if (fc_val > 0x00FFFFFFL) /* limit clock at maximum */
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| 74 | fc_val = 0x00FFFFFFL;
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| 75 |
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| 76 | } else if (clksrc EQ CK_PLS48) { /* Pulse 48 mode ? */
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| 77 |
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| 78 | ++fc_val; /* 1 clock per pulse */
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| 79 |
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| 80 | if (fc_val > 0x00FFFFFFL) /* limit clock at maximum */
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| 81 | fc_val = 0x00FFFFFFL;
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| 82 |
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| 83 | } else if (clksrc EQ CK_PLS96) { /* Pulse 96 mode ? */
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| 84 |
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| 85 | if (clkdiv++) { /* 2 pulses per clock */
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| 86 |
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| 87 | clkdiv = 0; /* reset divider */
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| 88 | ++fc_val; /* update frame clock */
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| 89 |
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| 90 | if (fc_val > 0x00FFFFFFL) /* limit clock at maximum */
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| 91 | fc_val = 0x00FFFFFFL;
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| 92 | }
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| 93 | }
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| 94 | }
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| 95 |
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| 96 | /*
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| 97 | =============================================================================
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| 98 | dopls2() -- process pulse 2 inputs
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| 99 | =============================================================================
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| 100 | */
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[0580615] | 101 |
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[f40a309] | 102 | void dopls2(void)
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| 103 | {
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| 104 | putwq(&ptefifo, 0x1181); /* pulse 2 trigger -> STM fifo */
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| 105 | }
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| 106 |
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| 107 | /* |
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| 108 |
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| 109 | */
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| 110 |
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| 111 | /*
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| 112 | =============================================================================
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| 113 | mpcupd() -- MIDI program change display update
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| 114 | =============================================================================
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[0580615] | 115 | */
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[f40a309] | 116 |
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| 117 | void mpcupd(void)
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| 118 | {
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| 119 | switch (ndisp) {
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| 120 |
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| 121 | case 0: /* Librarian */
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| 122 |
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| 123 | break;
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| 124 |
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| 125 | case 1: /* Patch Editor */
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| 126 |
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| 127 | break;
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| 128 |
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| 129 | case 2: /* Score Editor */
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| 130 |
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| 131 | sdwins(); /* fill in the windows */
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| 132 | break;
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| 133 |
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| 134 | case 3: /* Sequence Editor */
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| 135 |
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| 136 | break;
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| 137 |
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| 138 | case 4: /* Instrument Editor */
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| 139 |
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| 140 | setinst(); /* bring variables up to date */
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| 141 | allwins(); /* fill in the windows */
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| 142 | break;
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| 143 |
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| 144 | case 5: /* Initialize System */
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| 145 |
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| 146 | break;
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| 147 |
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| 148 | case 6: /* Waveshape Editor */
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| 149 |
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| 150 | newws(); /* bring variables up to date */
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| 151 | wwins(); /* fill in the windows */
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| 152 | break;
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| 153 |
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| 154 | case 7: /* Write Program to Disk */
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| 155 |
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| 156 | break;
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| 157 |
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| 158 | case 8: /* Tuning Editor */
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| 159 |
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| 160 | twins(); /* fill in the windows */
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| 161 | break;
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| 162 |
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| 163 | case 9: /* Format Disk */
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| 164 |
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| 165 | break;
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| 166 |
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| 167 | case 10: /* Assignment Editor */
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| 168 |
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| 169 | awins(); /* fill in the windows */
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| 170 | break;
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| 171 | }
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| 172 | }
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| 173 |
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| 174 | /* |
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| 175 |
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| 176 | */
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| 177 |
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| 178 | /*
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| 179 | =============================================================================
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| 180 | MIDAS 700 main function
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[0580615] | 181 | =============================================================================
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[f40a309] | 182 | */
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| 183 |
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| 184 | void main(void)
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| 185 | {
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| 186 | setipl(FPU_DI); /* disable FPU interrupts */
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| 187 |
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| 188 | /* +++++++++++++++++++++++ FPU INTERRUPTS DISABLED ++++++++++++++++++++++++++ */
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| 189 |
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| 190 | BIOS(B_SETV, 26, fpuint); /* set level 2 int. vector for FPU */
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| 191 |
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| 192 | initcfg = 0; /* set initial configuration (in MS bits) */
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| 193 | fp_resv[0] = (-1000) << 5; /* initial output amplitude = 0.0 */
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| 194 |
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| 195 | fpuclr(); /* quiet the FPU */
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| 196 |
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| 197 | tsetup(); /* setup the timer and timer interrupts */
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| 198 | setsio(); /* setup the serial I/O port interrupts */
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| 199 |
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| 200 | foot1 = clk_ped; /* setup clock on/off pedal processing */
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| 201 | foot2 = pch_ped; /* setup punch in/out pedal processing */
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| 202 |
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| 203 | pulse1 = dopls1; /* setup pulse input 1 processing */
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| 204 | pulse2 = dopls2; /* setup pulse input 2 processing */
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| 205 |
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| 206 | lcdontm = LCD_TIME; /* set the LCD backlight 'on' time */
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| 207 | lcd_on(); /* turn on the LCD backlight */
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| 208 |
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| 209 | strcpy(m7verms, &VerDate[2]); /* setup the version message */
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| 210 |
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| 211 | im700(); /* initialize everything */
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| 212 | settune(); /* ... including fine tuning */
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| 213 |
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| 214 | ndisp = -1; /* say nothing has been selected yet */
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| 215 | verbose = FALSE; /* setup to run the script quietly */
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| 216 | rscript(script0); /* run the initial script */
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| 217 | sc_goto(0L); /* position the score */
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| 218 |
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| 219 | MouseWK(); /* wake up the mouse if it's there */
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| 220 |
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| 221 | goto startup; /* go put up the main menu */
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| 222 |
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| 223 | /* |
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| 224 |
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| 225 | */
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| 226 |
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| 227 | newdisp:
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| 228 |
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| 229 | msl(); /* run the new display */
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| 230 |
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| 231 | startup:
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| 232 |
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| 233 | #if DEBUGIT
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| 234 | if (debugsw AND debugmm)
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| 235 | printf("main(): switching to MAIN MENU\N");
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| 236 | #endif
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| 237 |
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| 238 | m7menu(); /* put up the main menu */
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| 239 | msl(); /* run the main menu */
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| 240 |
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| 241 | #if DEBUGIT
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| 242 | if (debugsw AND debugmm)
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| 243 | printf("main(): switching to %d\n", ndisp);
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| 244 | #endif
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| 245 |
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| 246 | switch (ndisp) { /* setup for a new display */
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| 247 |
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| 248 | case 0: /* =================== librarian ==================== */
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| 249 |
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| 250 | ldfield(); /* setup the librarian field handlers */
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| 251 | libdsp(); /* setup the librarian display */
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| 252 | break;
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| 253 |
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| 254 | case 1: /* =================== patch editor ================= */
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| 255 |
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| 256 | ptfield(); /* setup the patch field handlers */
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| 257 | ptdisp(); /* setup the patch display */
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| 258 | break;
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| 259 |
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| 260 | case 2: /* =================== score editor ================= */
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| 261 |
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| 262 | scfield(); /* initialize score field handlers */
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| 263 | sdsetup(); /* setup the score display */
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| 264 | break;
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| 265 |
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| 266 | case 3: /* ================ sequence editor ================= */
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| 267 |
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| 268 | sqfield(); /* initialize sequence field handlers */
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| 269 | sqdisp(); /* setup the sequence display */
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| 270 | break;
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| 271 | /* |
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| 272 |
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| 273 | */
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| 274 | case 4: /* =============== instrument editor ================ */
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| 275 |
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| 276 | idfield(); /* setup instrument field handlers */
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| 277 | instdsp(); /* setup the instrument display */
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| 278 | break;
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| 279 |
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| 280 | case 6: /* ================ waveshape editor ================ */
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| 281 |
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| 282 | wdfield(); /* setup waveshape field handlers */
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| 283 | wsdsp(); /* setup the waveshape display */
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| 284 | break;
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| 285 |
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| 286 | case 8: /* ================ tuning editor ================ */
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| 287 |
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| 288 | tdfield(); /* setup tuning editor field handlers */
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| 289 | tundsp(); /* setup the tuning display */
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| 290 | break;
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| 291 |
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| 292 | case 10: /* ================ assignment editor =============== */
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| 293 |
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| 294 | adfield(); /* setup assignment field handlers */
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| 295 | asgdsp(); /* setup the assignment display */
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| 296 | break;
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| 297 |
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| 298 | case 11: /* ================ diagnostics ===================== */
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| 299 |
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| 300 | scopeon(); /* setup the diagnostics */
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| 301 | break;
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| 302 |
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| 303 | default:
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| 304 |
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| 305 | #if DEBUGIT
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| 306 | if (debugsw AND debugmm)
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| 307 | printf("main(): UNKNOWN display (%d)\n", ndisp);
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| 308 | #endif
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| 309 |
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| 310 | ndisp = -1;
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| 311 | goto startup;
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| 312 | }
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| 313 |
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| 314 | #if DEBUGIT
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| 315 | if (debugsw AND debugmm)
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| 316 | printf("main(): display switch complete to %d\n", ndisp);
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| 317 | #endif
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| 318 |
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| 319 | goto newdisp;
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| 320 | }
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