[f40a309] | 1 | /*
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| 2 | =============================================================================
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| 3 | barbadj.c -- MIDAS-VII -- GLC bar graph drivers
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| 4 | Version 8 -- 1988-10-27 -- D.N. Lynx Crowe
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| 5 |
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| 6 | BarBadj(bar, val)
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| 7 | short bar, val;
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| 8 |
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| 9 | Adjusts a bottom-zero bar graph, 'bar',
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| 10 | to read 'val'.
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| 11 |
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| 12 | BarBset(bar, val)
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| 13 | short bar, val;
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| 14 |
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| 15 | Sets a bottom-zero bar graph, 'bar',
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| 16 | to an intial value, 'val'.
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| 17 |
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| 18 | BarCadj(bar, val)
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| 19 | short bar, val;
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| 20 |
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| 21 | Adjusts a centered-zero bar graph, 'bar',
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| 22 | to read 'val'.
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| 23 |
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| 24 | BarCset(bar, val)
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| 25 | short bar, val;
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| 26 |
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| 27 | Sets a centered-zero bar graph, 'bar',
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| 28 | to an intial value, 'val'.
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| 29 | =============================================================================
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| 30 | */
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| 31 |
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[6262b5c] | 32 | #include "all.h"
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[f40a309] | 33 |
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[7258c6a] | 34 | extern int16_t BarBcur[];
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| 35 | extern int16_t BarCcur[];
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[f40a309] | 36 |
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| 37 | /* left-most bar columns */
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| 38 |
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[7258c6a] | 39 | int16_t BarCols[14] = { 2, 8, 14, 20, 26, 32, 38, 44, 50, 56, 62, 68, 74, 80 };
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[f40a309] | 40 |
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| 41 | /* bar dot data */
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| 42 |
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[7258c6a] | 43 | int16_t BarDots[3] = { 0x1C, 0xFC, 0xE0 };
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[f40a309] | 44 |
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| 45 | #include "glcbars.h" /* bar graph driver constant definitions */
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| 46 |
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| 47 | /* |
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| 48 |
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| 49 | */
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| 50 |
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| 51 | /*
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| 52 | =============================================================================
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| 53 | BarBadj() -- adjust a bottom-zero bar graph to a new value
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| 54 | =============================================================================
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| 55 | */
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[7258c6a] | 56 |
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[f40a309] | 57 | void BarBadj(int16_t bar, int16_t val)
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[7258c6a] | 58 | {
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| 59 | register int16_t bardot, barpos, curdif;
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| 60 | register uint16_t baradr;
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[f40a309] | 61 | int16_t barcol, bardif, curbar, i, newbar;
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| 62 |
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| 63 | newbar = BarBLn[val]; /* look up the new bar position */
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| 64 | curbar = BarBcur[bar]; /* get the current bar position */
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| 65 | bardif = newbar - curbar; /* calculate how far to move the bar */
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| 66 |
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| 67 | if (0 EQ bardif) /* done if bar doesn't need to be moved */
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| 68 | return;
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| 69 |
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| 70 | GLCcurs(G_ON); /* turn on GLC cursor to enable writing */
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| 71 | barcol = BarCols[bar]; /* find leftmost column of bar */
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| 72 |
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| 73 | if (bardif > 0) { /* increasing value */
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| 74 |
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| 75 | /* calculate initial GLC RAM write address */
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| 76 |
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| 77 | baradr = barcol + (85 * (63 - (curbar + 1))) + G_PLANE2;
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| 78 |
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| 79 | LCD_WC = G_CRSMUP; /* set cursor motion "up" */
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| 80 |
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| 81 | for (i = 0; i < 3; i++) { /* for each bar column ... */
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| 82 |
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| 83 | curdif = bardif; /* set difference counter */
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| 84 | bardot = BarDots[i]; /* get the column dot value */
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| 85 |
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| 86 | LCD_WC = G_CRSWR; /* set cursor address */
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| 87 | LCD_WD = baradr & 0xFF;
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| 88 | LCD_WD = (baradr >> 8) & 0xFF;
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| 89 |
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| 90 | ++baradr; /* update GLC start address */
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| 91 |
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| 92 | LCD_WC = G_MWRITE; /* setup to write */
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| 93 |
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| 94 | while (curdif--) /* write new dots */
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| 95 | LCD_WD = bardot;
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| 96 | }
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| 97 | /* |
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| 98 |
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| 99 | */
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| 100 | } else { /* decreasing value */
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| 101 |
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| 102 | /* calculate initial GLC RAM write address */
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| 103 |
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| 104 | baradr = barcol + (85 * (63 - curbar)) + G_PLANE2;
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| 105 |
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| 106 | LCD_WC = G_CRSMDN; /* set cursor motion "down" */
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| 107 |
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| 108 | for (i = 0; i < 3; i++) { /* for each bar column ... */
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| 109 |
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| 110 | curdif = -bardif; /* set difference counter */
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| 111 |
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| 112 | LCD_WC = G_CRSWR; /* set cursor address */
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| 113 | LCD_WD = baradr & 0xFF;
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| 114 | LCD_WD = (baradr >> 8) & 0xFF;
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| 115 |
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| 116 | ++baradr; /* update GLC start address */
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| 117 |
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| 118 | LCD_WC = G_MWRITE; /* setup to write */
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| 119 |
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| 120 | while (curdif--) /* erase old dots */
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| 121 | LCD_WD = 0x00;
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| 122 | }
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| 123 | }
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| 124 |
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| 125 | LCD_WC = G_CRSMRT; /* set cursor motion = "right" */
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| 126 | GLCcurs(G_OFF); /* turn off the cursor */
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| 127 |
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| 128 | BarBcur[bar] = newbar; /* update current bar position */
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| 129 | }
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| 130 |
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| 131 | /* |
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| 132 |
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| 133 | */
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| 134 |
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| 135 | /*
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| 136 | =============================================================================
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| 137 | BarBset() -- set a bottom-zero bar graph to an initial value
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[7258c6a] | 138 | =============================================================================
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[f40a309] | 139 | */
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[7258c6a] | 140 |
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| 141 | void BarBset(int16_t bar, int16_t val)
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| 142 | {
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[f40a309] | 143 | register int16_t bardot, barpos, newbar;
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| 144 | register uint16_t baradr;
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| 145 | int16_t barcol, i;
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| 146 |
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| 147 | newbar = BarBLn[val]; /* look up the new bar position */
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| 148 | barcol = BarCols[bar]; /* find leftmost column of bar */
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| 149 |
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| 150 | GLCcurs(G_ON); /* turn on GLC cursor to enable writing */
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| 151 |
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| 152 | /* calculate initial GLC RAM write address */
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| 153 |
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| 154 | baradr = barcol + (85 * (63 - BBase)) + G_PLANE2;
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| 155 |
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| 156 | LCD_WC = G_CRSMUP; /* set cursor motion = "up" */
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| 157 |
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| 158 | for (i = 0; i < 3; i++) { /* for each bar column ... */
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| 159 |
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| 160 | bardot = BarDots[i]; /* get the column dot value */
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| 161 | barpos = BBase; /* get base of bar */
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| 162 |
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| 163 | LCD_WC = G_CRSWR; /* set cursor address */
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| 164 | LCD_WD = baradr & 0xFF;
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| 165 | LCD_WD = (baradr >> 8) & 0xFF;
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| 166 |
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| 167 | ++baradr; /* update GLC start address */
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| 168 |
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| 169 | LCD_WC = G_MWRITE; /* setup to write */
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| 170 |
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| 171 | while (barpos++ LE newbar) /* write new dots */
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| 172 | LCD_WD = bardot;
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| 173 |
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| 174 | while (barpos++ < BTop) /* erase old dots */
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| 175 | LCD_WD = 0x00;
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| 176 | }
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[9519422] | 177 |
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[f40a309] | 178 | LCD_WC = G_CRSMRT; /* set cursor motion = "right" */
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| 179 | GLCcurs(G_OFF); /* turn off the cursor */
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| 180 |
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| 181 | BarBcur[bar] = newbar; /* update current bar position */
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| 182 | }
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| 183 |
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| 184 | /* |
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| 185 |
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| 186 | */
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| 187 |
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| 188 | /*
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| 189 | =============================================================================
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[7258c6a] | 190 | BarCadj() -- adjust a centered-zero bar graph to a new value
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[f40a309] | 191 | =============================================================================
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[7258c6a] | 192 | */
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| 193 |
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| 194 | void BarCadj(int16_t bar, int16_t val)
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[f40a309] | 195 | {
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| 196 | register int16_t bardot, barpos, newbar;
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| 197 | register uint16_t baradr;
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| 198 | int16_t barcol, bardif, curbar, i;
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| 199 |
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| 200 | newbar = BarCLn[val + BOffset]; /* look up the new bar position */
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| 201 | curbar = BarCcur[bar]; /* get the current bar position */
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| 202 | bardif = newbar - curbar; /* calculate how far to move the bar */
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| 203 |
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| 204 | if (0 EQ bardif) /* done if bar doesn't need to be moved */
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| 205 | return;
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| 206 |
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| 207 | GLCcurs(G_ON); /* turn on GLC cursor to enable writing */
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| 208 |
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| 209 | barcol = BarCols[bar]; /* find leftmost column of bar */
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| 210 |
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| 211 | /* calculate initial GLC RAM write address */
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| 212 |
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| 213 | baradr = barcol + (85 * (63 - curbar)) + G_PLANE2;
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| 214 |
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| 215 | /* |
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| 216 |
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| 217 | */
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| 218 | if (newbar > curbar) { /* increasing value */
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| 219 |
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| 220 | LCD_WC = G_CRSMUP; /* set cursor motion "up" */
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| 221 |
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| 222 | for (i = 0; i < 3; i++) { /* for each bar column ... */
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| 223 |
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| 224 | bardot = BarDots[i]; /* get the column dot value */
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| 225 | barpos = curbar; /* set current vert. position */
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| 226 |
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| 227 | LCD_WC = G_CRSWR; /* set cursor address */
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| 228 | LCD_WD = baradr & 0xFF;
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| 229 | LCD_WD = (baradr >> 8) & 0xFF;
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| 230 |
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| 231 | LCD_WC = G_MWRITE; /* setup to write */
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| 232 |
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| 233 | while (barpos NE newbar) /* write bar on LCD */
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| 234 | if (barpos++ < BCenter)
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| 235 | LCD_WD = 0x00; /* dots off */
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| 236 | else
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| 237 | LCD_WD = bardot; /* dots on */
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| 238 |
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| 239 | ++baradr; /* update GLC start address */
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| 240 | }
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| 241 | /* |
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| 242 |
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| 243 | */
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| 244 | } else { /* decreasing value */
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| 245 |
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| 246 | LCD_WC = G_CRSMDN; /* set cursor motion "down" */
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| 247 |
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| 248 | for (i = 0; i < 3; i++) { /* for each bar column ... */
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| 249 |
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| 250 | bardot = BarDots[i]; /* get column dot value */
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| 251 | barpos = curbar; /* set current bar location */
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| 252 |
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| 253 | LCD_WC = G_CRSWR; /* set cursor address */
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| 254 | LCD_WD = baradr & 0xFF;
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| 255 | LCD_WD = (baradr >> 8) & 0xFF;
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| 256 |
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| 257 | LCD_WC = G_MWRITE; /* setup to write */
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| 258 |
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| 259 | while (barpos NE newbar) /* write bar to LCD */
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| 260 | if (barpos-- > BCenter)
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| 261 | LCD_WD= 0x00; /* dots off */
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| 262 | else
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| 263 | LCD_WD = bardot; /* dots on */
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| 264 |
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[9519422] | 265 | ++baradr; /* update GLC start address */
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[f40a309] | 266 | }
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| 267 | }
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| 268 |
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| 269 | LCD_WC = G_CRSMRT; /* set cursor motion = "right" */
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| 270 | GLCcurs(G_OFF); /* turn off the cursor */
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| 271 |
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| 272 | BarCcur[bar] = newbar; /* update current bar position */
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| 273 | }
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| 274 |
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| 275 | /* |
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| 276 |
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| 277 | */
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[7258c6a] | 278 |
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[f40a309] | 279 | /*
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[7258c6a] | 280 | =============================================================================
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| 281 | BarCset() -- set a centered-zero bar graph to an initial value
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| 282 | =============================================================================
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[f40a309] | 283 | */
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| 284 |
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| 285 | void BarCset(int16_t bar, int16_t val)
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| 286 | {
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| 287 | register int16_t bardot, barpos, barloc1, barloc2;
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| 288 | register uint16_t baradr;
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| 289 | int16_t barcol, i, newbar;
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| 290 |
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| 291 | GLCcurs(G_ON); /* turn on GLC cursor to enable writing */
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| 292 |
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| 293 | newbar = BarCLn[val + BOffset]; /* look up the new bar position */
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| 294 | barcol = BarCols[bar]; /* find leftmost column of bar */
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| 295 |
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| 296 | /* calculate initial GLC RAM write address */
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| 297 |
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| 298 | baradr = barcol + (85 * (63 - BBase)) + G_PLANE2;
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| 299 |
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| 300 | if (newbar < BCenter) { /* target below center */
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| 301 |
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| 302 | barloc1 = newbar; /* off limit */
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| 303 | barloc2 = BCenter; /* on limit */
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| 304 |
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| 305 | } else { /* target at or above center */
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| 306 |
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| 307 | barloc1 = BCenter; /* off limit */
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| 308 | barloc2 = newbar; /* on limit */
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| 309 | }
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| 310 |
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| 311 | LCD_WC = G_CRSMUP; /* set cursor motion "up" */
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| 312 |
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| 313 | /* |
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| 314 |
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| 315 | */
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| 316 | for (i = 0; i < 3; i++) { /* for each bar column ... */
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| 317 |
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| 318 | bardot = BarDots[i]; /* get the column dot value */
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| 319 | barpos = BBase; /* set current vert. position */
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| 320 |
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| 321 | LCD_WC = G_CRSWR; /* set cursor address */
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| 322 | LCD_WD = baradr & 0xFF;
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| 323 | LCD_WD = (baradr >> 8) & 0xFF;
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| 324 |
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| 325 | LCD_WC = G_MWRITE; /* setup to write */
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| 326 |
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| 327 | while (barpos < barloc1) { /* write "off" dots */
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| 328 |
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| 329 | LCD_WD = 0x00;
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| 330 | barpos++;
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| 331 | }
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| 332 |
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| 333 | while (barpos LE barloc2) { /* write "on" dots */
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| 334 |
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| 335 | LCD_WD = bardot;
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| 336 | barpos++;
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| 337 | }
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| 338 |
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| 339 | while (barpos LE BTop) { /* write "off" dots */
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| 340 |
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| 341 | LCD_WD = 0x00;
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[9519422] | 342 | barpos++;
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[f40a309] | 343 | }
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| 344 |
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[6262b5c] | 345 | ++baradr; /* update GLC start address */
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| 346 | }
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| 347 |
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| 348 | LCD_WC = G_CRSMRT; /* set cursor motion = "right" */
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| 349 | GLCcurs(G_OFF); /* turn off the cursor */
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| 350 |
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| 351 | BarCcur[bar] = newbar; /* update current bar position */
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| 352 | }
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| 353 |
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