[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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[6262b5c] | 10 | #include "all.h"
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[e225e77] | 11 |
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[7258c6a] | 12 | #define LCD_TIME ((int32_t)(800 * 240)) /* LCD backlight 'on' time */
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[f40a309] | 13 |
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| 14 | #if DEBUGIT
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| 15 | extern short debugsw;
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| 16 |
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| 17 | short debugmm = 1;
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| 18 | #endif
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| 19 |
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[0580615] | 20 | extern void fpuint(void);
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[7258c6a] | 21 | extern void clk_ped(int16_t stat);
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| 22 | extern void pch_ped(int16_t stat);
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[f40a309] | 23 |
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[e225e77] | 24 | extern int16_t MouseWK(void);
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| 25 | extern int16_t rscript(int8_t *p[]);
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| 26 | extern uint16_t setipl(uint16_t arg);
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| 27 | extern void adfield(void);
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| 28 | extern void allwins(void);
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| 29 | extern void asgdsp(void);
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| 30 | extern void awins(void);
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| 31 | extern void fpuclr(void);
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| 32 | extern void idfield(void);
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| 33 | extern void im700(void);
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| 34 | extern void instdsp(void);
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| 35 | extern void lcd_on(void);
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| 36 | extern void ldfield(void);
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| 37 | extern void libdsp(void);
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| 38 | extern void m7menu(void);
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| 39 | extern void msl(void);
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| 40 | extern void newws(void);
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| 41 | extern void ptdisp(void);
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| 42 | extern void ptfield(void);
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| 43 | extern void scfield(void);
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| 44 | extern void scopeon(void);
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| 45 | extern void sdsetup(void);
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| 46 | extern void sdwins(void);
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| 47 | extern void setinst(void);
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| 48 | extern void setsio(void);
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| 49 | extern void settune(void);
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| 50 | extern void sqdisp(void);
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| 51 | extern void sqfield(void);
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| 52 | extern void tdfield(void);
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| 53 | extern void tsetup(void);
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| 54 | extern void tundsp(void);
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| 55 | extern void twins(void);
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| 56 | extern void wdfield(void);
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| 57 | extern void wsdsp(void);
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| 58 | extern void wwins(void);
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| 59 |
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[7258c6a] | 60 | extern void (*foot1)(int16_t stat);
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| 61 | extern void (*foot2)(int16_t stat);
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[0c834c5] | 62 | extern void (*pulse1)(void);
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| 63 | extern void (*pulse2)(void);
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[f40a309] | 64 |
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[7258c6a] | 65 | extern int8_t end, etext, edata;
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[f40a309] | 66 |
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[7258c6a] | 67 | extern int16_t clkrun, clksrc, initcfg, ndisp, verbose;
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[f40a309] | 68 |
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[7258c6a] | 69 | extern int32_t lcdontm, lcdtime;
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[f40a309] | 70 |
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[7258c6a] | 71 | extern int16_t fp_resv[];
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[f40a309] | 72 |
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[7258c6a] | 73 | extern int8_t *script0[];
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[f40a309] | 74 |
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[7258c6a] | 75 | extern int8_t VerDate[];
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[f40a309] | 76 |
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| 77 | extern struct wordq ptefifo; /* trigger fifo */
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| 78 |
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[7258c6a] | 79 | int8_t m7verms[32]; /* version message for the main menu */
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[f40a309] | 80 |
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[7258c6a] | 81 | int16_t clkdiv; /* clock divider */
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[f40a309] | 82 |
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| 83 | /* |
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| 84 |
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| 85 | */
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| 86 |
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| 87 | /*
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| 88 | =============================================================================
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| 89 | dopls1() -- process pulse 1 inputs
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| 90 | =============================================================================
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| 91 | */
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[0580615] | 92 |
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[f40a309] | 93 | void dopls1(void)
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| 94 | {
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| 95 | putwq(&ptefifo, 0x1180); /* pulse 1 trigger -> STM fifo */
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| 96 |
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| 97 | if (NOT clkrun) /* check for clock enable */
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| 98 | return; /* done if not enabled */
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| 99 |
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| 100 | if (clksrc EQ CK_PLS24) { /* Pulse 24 mode ? */
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| 101 |
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| 102 | fc_val += 2L; /* 2 clocks per pulse */
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| 103 |
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| 104 | if (fc_val > 0x00FFFFFFL) /* limit clock at maximum */
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| 105 | fc_val = 0x00FFFFFFL;
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| 106 |
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| 107 | } else if (clksrc EQ CK_PLS48) { /* Pulse 48 mode ? */
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| 108 |
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| 109 | ++fc_val; /* 1 clock per pulse */
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| 110 |
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| 111 | if (fc_val > 0x00FFFFFFL) /* limit clock at maximum */
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| 112 | fc_val = 0x00FFFFFFL;
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| 113 |
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| 114 | } else if (clksrc EQ CK_PLS96) { /* Pulse 96 mode ? */
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| 115 |
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| 116 | if (clkdiv++) { /* 2 pulses per clock */
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| 117 |
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| 118 | clkdiv = 0; /* reset divider */
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| 119 | ++fc_val; /* update frame clock */
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| 120 |
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| 121 | if (fc_val > 0x00FFFFFFL) /* limit clock at maximum */
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| 122 | fc_val = 0x00FFFFFFL;
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| 123 | }
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| 124 | }
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| 125 | }
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| 126 |
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| 127 | /*
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| 128 | =============================================================================
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| 129 | dopls2() -- process pulse 2 inputs
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| 130 | =============================================================================
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| 131 | */
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[0580615] | 132 |
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[f40a309] | 133 | void dopls2(void)
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| 134 | {
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| 135 | putwq(&ptefifo, 0x1181); /* pulse 2 trigger -> STM fifo */
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| 136 | }
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| 137 |
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| 138 | /* |
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| 139 |
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| 140 | */
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| 141 |
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| 142 | /*
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| 143 | =============================================================================
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| 144 | mpcupd() -- MIDI program change display update
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| 145 | =============================================================================
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[0580615] | 146 | */
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[f40a309] | 147 |
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| 148 | void mpcupd(void)
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| 149 | {
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| 150 | switch (ndisp) {
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| 151 |
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| 152 | case 0: /* Librarian */
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| 153 |
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| 154 | break;
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| 155 |
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| 156 | case 1: /* Patch Editor */
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| 157 |
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| 158 | break;
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| 159 |
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| 160 | case 2: /* Score Editor */
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| 161 |
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| 162 | sdwins(); /* fill in the windows */
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| 163 | break;
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| 164 |
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| 165 | case 3: /* Sequence Editor */
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| 166 |
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| 167 | break;
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| 168 |
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| 169 | case 4: /* Instrument Editor */
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| 170 |
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| 171 | setinst(); /* bring variables up to date */
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| 172 | allwins(); /* fill in the windows */
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| 173 | break;
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| 174 |
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| 175 | case 5: /* Initialize System */
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| 176 |
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| 177 | break;
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| 178 |
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| 179 | case 6: /* Waveshape Editor */
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| 180 |
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| 181 | newws(); /* bring variables up to date */
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| 182 | wwins(); /* fill in the windows */
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| 183 | break;
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| 184 |
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| 185 | case 7: /* Write Program to Disk */
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| 186 |
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| 187 | break;
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| 188 |
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| 189 | case 8: /* Tuning Editor */
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| 190 |
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| 191 | twins(); /* fill in the windows */
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| 192 | break;
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| 193 |
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| 194 | case 9: /* Format Disk */
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| 195 |
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| 196 | break;
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| 197 |
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| 198 | case 10: /* Assignment Editor */
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| 199 |
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| 200 | awins(); /* fill in the windows */
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| 201 | break;
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| 202 | }
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| 203 | }
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| 204 |
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| 205 | /* |
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| 206 |
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| 207 | */
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| 208 |
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| 209 | /*
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| 210 | =============================================================================
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| 211 | MIDAS 700 main function
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[0580615] | 212 | =============================================================================
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[f40a309] | 213 | */
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| 214 |
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| 215 | void main(void)
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| 216 | {
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| 217 | setipl(FPU_DI); /* disable FPU interrupts */
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| 218 |
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| 219 | /* +++++++++++++++++++++++ FPU INTERRUPTS DISABLED ++++++++++++++++++++++++++ */
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| 220 |
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| 221 | BIOS(B_SETV, 26, fpuint); /* set level 2 int. vector for FPU */
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| 222 |
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| 223 | initcfg = 0; /* set initial configuration (in MS bits) */
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| 224 | fp_resv[0] = (-1000) << 5; /* initial output amplitude = 0.0 */
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| 225 |
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| 226 | fpuclr(); /* quiet the FPU */
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| 227 |
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| 228 | tsetup(); /* setup the timer and timer interrupts */
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| 229 | setsio(); /* setup the serial I/O port interrupts */
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| 230 |
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| 231 | foot1 = clk_ped; /* setup clock on/off pedal processing */
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| 232 | foot2 = pch_ped; /* setup punch in/out pedal processing */
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| 233 |
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| 234 | pulse1 = dopls1; /* setup pulse input 1 processing */
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| 235 | pulse2 = dopls2; /* setup pulse input 2 processing */
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| 236 |
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| 237 | lcdontm = LCD_TIME; /* set the LCD backlight 'on' time */
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| 238 | lcd_on(); /* turn on the LCD backlight */
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| 239 |
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| 240 | strcpy(m7verms, &VerDate[2]); /* setup the version message */
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| 241 |
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| 242 | im700(); /* initialize everything */
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| 243 | settune(); /* ... including fine tuning */
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| 244 |
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| 245 | ndisp = -1; /* say nothing has been selected yet */
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| 246 | verbose = FALSE; /* setup to run the script quietly */
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| 247 | rscript(script0); /* run the initial script */
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| 248 | sc_goto(0L); /* position the score */
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| 249 |
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| 250 | MouseWK(); /* wake up the mouse if it's there */
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| 251 |
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| 252 | goto startup; /* go put up the main menu */
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| 253 |
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| 254 | /* |
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| 255 |
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| 256 | */
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| 257 |
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| 258 | newdisp:
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| 259 |
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| 260 | msl(); /* run the new display */
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| 261 |
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| 262 | startup:
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| 263 |
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| 264 | #if DEBUGIT
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| 265 | if (debugsw AND debugmm)
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| 266 | printf("main(): switching to MAIN MENU\N");
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| 267 | #endif
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| 268 |
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| 269 | m7menu(); /* put up the main menu */
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| 270 | msl(); /* run the main menu */
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| 271 |
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| 272 | #if DEBUGIT
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| 273 | if (debugsw AND debugmm)
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| 274 | printf("main(): switching to %d\n", ndisp);
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| 275 | #endif
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| 276 |
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| 277 | switch (ndisp) { /* setup for a new display */
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| 278 |
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| 279 | case 0: /* =================== librarian ==================== */
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| 280 |
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| 281 | ldfield(); /* setup the librarian field handlers */
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| 282 | libdsp(); /* setup the librarian display */
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| 283 | break;
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| 284 |
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| 285 | case 1: /* =================== patch editor ================= */
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| 286 |
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| 287 | ptfield(); /* setup the patch field handlers */
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| 288 | ptdisp(); /* setup the patch display */
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| 289 | break;
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| 290 |
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| 291 | case 2: /* =================== score editor ================= */
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| 292 |
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| 293 | scfield(); /* initialize score field handlers */
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| 294 | sdsetup(); /* setup the score display */
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| 295 | break;
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| 296 |
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| 297 | case 3: /* ================ sequence editor ================= */
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| 298 |
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| 299 | sqfield(); /* initialize sequence field handlers */
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| 300 | sqdisp(); /* setup the sequence display */
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| 301 | break;
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| 302 | /* |
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| 303 |
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| 304 | */
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| 305 | case 4: /* =============== instrument editor ================ */
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| 306 |
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| 307 | idfield(); /* setup instrument field handlers */
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| 308 | instdsp(); /* setup the instrument display */
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| 309 | break;
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| 310 |
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| 311 | case 6: /* ================ waveshape editor ================ */
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| 312 |
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| 313 | wdfield(); /* setup waveshape field handlers */
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| 314 | wsdsp(); /* setup the waveshape display */
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| 315 | break;
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| 316 |
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| 317 | case 8: /* ================ tuning editor ================ */
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| 318 |
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| 319 | tdfield(); /* setup tuning editor field handlers */
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| 320 | tundsp(); /* setup the tuning display */
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| 321 | break;
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| 322 |
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| 323 | case 10: /* ================ assignment editor =============== */
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| 324 |
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| 325 | adfield(); /* setup assignment field handlers */
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| 326 | asgdsp(); /* setup the assignment display */
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| 327 | break;
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| 328 |
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| 329 | case 11: /* ================ diagnostics ===================== */
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| 330 |
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| 331 | scopeon(); /* setup the diagnostics */
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| 332 | break;
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| 333 |
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| 334 | default:
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| 335 |
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| 336 | #if DEBUGIT
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| 337 | if (debugsw AND debugmm)
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| 338 | printf("main(): UNKNOWN display (%d)\n", ndisp);
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| 339 | #endif
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| 340 |
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| 341 | ndisp = -1;
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| 342 | goto startup;
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| 343 | }
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| 344 |
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| 345 | #if DEBUGIT
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| 346 | if (debugsw AND debugmm)
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[6262b5c] | 347 | printf("main(): display switch complete to %d\n", ndisp);
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| 348 | #endif
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| 349 |
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| 350 | goto newdisp;
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| 351 | }
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| 352 |
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