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Annotation of hatari/tests/dbmsg/dbmsg.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Tester for Hatari's implementation of Atari debugger
        !             3:  * XBIOS Dbmsg() API
        !             4:  * 
        !             5:  * Test:
        !             6:  *   hatari --bios-intercept --trace xbios dbmsg.tos
        !             7:  * 
        !             8:  * See:
        !             9:  * - http://dev-docs.atariforge.org/files/Atari_Debugger_1-24-1990.pdf
        !            10:  * - http://toshyp.atari.org/en/004012.html#Dbmsg
        !            11:  */
        !            12: #include "stdint.h"
        !            13: #include "assert.h"
        !            14: #include "tos.h"
        !            15: 
        !            16: #define DB_APP_CMD    0x0000
        !            17: #define DB_COMMAND    0xF100
        !            18: #define DB_NULLSTRING 0xF000
        !            19: /* len should be: 1-255 */
        !            20: #define DB_STRING(len) (DB_NULLSTRING + ((len) & 0xFF))
        !            21: 
        !            22: static void Dbmsg(int16_t reserved, uint16_t msg_num, uint32_t msg_arg)
        !            23: {
        !            24:        /* other 'reserved' values than 5 are undefined */
        !            25:        xbios(11, reserved, msg_num, msg_arg);
        !            26: }
        !            27: 
        !            28: int main()
        !            29: {
        !            30:        const char str[] = "Halting STRING";
        !            31: 
        !            32:        /* Print NULL-terminated string */
        !            33:        Dbmsg(5, DB_NULLSTRING, (uint32_t)"Please print NULLSTRING");
        !            34: 
        !            35:        /* Print give string (which lenght is encoded to msg_num),
        !            36:         * and invoking debugger / halt
        !            37:         */
        !            38:        Dbmsg(5, DB_STRING(sizeof(str)-1), (uint32_t)str);
        !            39: 
        !            40:        /* Print given value and invoke debugger */
        !            41:        Dbmsg(5, DB_APP_CMD, (uint32_t)0xDEADBEEF);
        !            42: 
        !            43:        /* Give command for debugger to execute.
        !            44:         * In Hatari case this is currently same as DB_NULLSTRING.
        !            45:         */
        !            46:        Dbmsg(5, DB_COMMAND, (uint32_t)"echo 'Debugging message';");
        !            47: 
        !            48:        return 0;
        !            49: }

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