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Annotation of xinu/h/qbus.h, revision 1.1.1.1

1.1       root        1: /* qbus.h */
                      2: 
                      3: /* Microvax II Q-bus mappiong constants */
                      4:                                                /* UVAX II Reg Addrs.   */
                      5: #define QMAP   ((unsigned int *)0x20088000)    /*  qbus map regs.      */
                      6: #define QMMECSR        ((unsigned int *)0x20080004)    /*  mem error CSR       */
                      7: #define        QMIPCR  ((unsigned short *)0x20001f40)  /*  cpu communic. reg   */
                      8: #define        QMCPMBX 0x200b801c                      /*  console pgm mailbox */
                      9: 
                     10:                                                /* UVAXII bus map regs: */
                     11: #define        QMNMREG 8192                            /* # mapping registers  */
                     12: #define        QMENAB  0x20                            /* enable bus mapping   */
                     13: #define        QMREGV  0x80000000                      /* map register valid   */
                     14: #define        QMHALT  0x23                            /* QMCPMBX value to     */
                     15:                                                /*      halt the CPU    */
                     16: 
                     17: #ifndef        ASM
                     18: 
                     19:        /* extract high 6 bits of 22-bit Q-bus address into low 6 bits*/
                     20: #define        hiQ2low(x) (short)(((unsigned int)x>>(sizeof(short)*8)) & LOW6)
                     21: 
                     22:        /* move low 6 bits from short to high 6 bits of 22-bit Qbus address */
                     23: #define        lowQ2hi(x) (((int)x & LOW6) << (sizeof(short)*8))
                     24: 
                     25: #endif ASM

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