FreeCalypso > hg > freecalypso-tools
annotate target-utils/lunadrv/regcmd.c @ 912:3ed4f53c6092
doc/Host-tools-overview: update fc-tch2fr bogon description
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 29 Dec 2022 21:24:53 +0000 |
parents | 36e6a1ff9608 |
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1 /* |
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2 * Handy commands for reading and writing LCD controller registers. |
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3 */ |
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4 |
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5 #include <sys/types.h> |
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6 #include "types.h" |
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7 #include "luna.h" |
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8 |
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9 void |
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10 cmd_rd(argbulk) |
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11 char *argbulk; |
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12 { |
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13 char *argv[2]; |
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14 u_long regno; |
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15 |
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16 if (parse_args(argbulk, 1, 1, argv, 0) < 0) |
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17 return; |
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18 if (parse_hexarg(argv[0], 4, ®no) < 0) { |
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19 printf("ERROR: regno argument must be a valid 16-bit hex word\n"); |
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20 return; |
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21 } |
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22 LCD_IR = regno; |
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23 printf("%04X\n", LCD_DR); |
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24 } |
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25 |
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26 void |
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27 cmd_wr(argbulk) |
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28 char *argbulk; |
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29 { |
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30 char *argv[3]; |
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31 u_long regno, value; |
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32 |
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33 if (parse_args(argbulk, 2, 2, argv, 0) < 0) |
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34 return; |
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35 if (parse_hexarg(argv[0], 4, ®no) < 0) { |
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36 printf("ERROR: regno argument must be a valid 16-bit hex word\n"); |
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37 return; |
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38 } |
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39 if (parse_hexarg(argv[1], 4, &value) < 0) { |
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40 printf("ERROR: value argument must be a valid 16-bit hex word\n"); |
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41 return; |
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42 } |
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43 LCD_IR = regno; |
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44 LCD_DR = value; |
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45 } |