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      1 
      2 version 2.0 05-02-96
      3 --------------------
      4 
      5 * Switched to bfd library. Any supported format (elf, coff, ...) can be used.
      6 * The UART devices can be set through -uart1 and -uart2 switches.
      7 * Switched to GNU readline.
      8 * Added -c option to run batch files at startup
      9 * 'reg' command can show different register windows (eg 'reg w3').
     10 * Use 'help' for online help on simulator commands
     11 
     12 version 1.8.1 20-01-96
     13 --------------------
     14 
     15 * added -mevrev0 switch to simulate MEC rev.0 bugs in timer and uart
     16 
     17 * added -iurev0 switch to simulate IU rev.0 jmpl/restore bug
     18 
     19 * Added sis command 'batch' to run batch files
     20 
     21 
     22 version 1.8 30-10-95
     23 --------------------
     24 
     25 * Added s-record support. Use the '-s' switch with sis or the 'load' command.
     26 
     27 * IU load dependencies are now modelled
     28 
     29 version 1.7 30-10-95
     30 --------------------
     31 
     32 * Power-down mode implemented in erc32.c.
     33   
     34 * Performance display shows the ratio between simulator-time and real-time.
     35 
     36 
     37 version 1.6.2 25-10-95
     38 --------------------
     39 
     40 * The UARTs can now be run at a given speed (simulator time) to better
     41   simulate the behaviour of interrupt routines. The "true mode" is
     42   selected through a compile switch in the makefile.
     43 
     44 
     45 version 1.6 28-09-95
     46 --------------------
     47 
     48 * Major reorganisation of the code. mec.c and mem.c merged into erc32.c.
     49 
     50 * The load command does NOT longer load the initialised data at an address
     51   defined by .bdata. This is done in srt0.s using _environ.
     52 
     53 * Additional MEC functionallity added - software reset, memory access
     54   protection and waitstate configuration register.
     55 
     56 * interf.c - a GDB interface added
     57 
     58 * -v switch (verbose) added
     59 
     60 version 1.5 14-09-95
     61 --------------------
     62 
     63 * Added a instruction trace buffer, enabled through the 'hist' command.
     64 
     65 * Added a 'perf' command to display statistics such as instruction mix,
     66   CPI, FPU holds etc.
     67 
     68 * Added -nfp switch to disable FPU.
     69 
     70 * Added -freq switch to set simulated frequency.
     71 
     72 version 1.4 22-08-95
     73 --------------------
     74 
     75 * A -g is provided for those who have problems with GNU readline(). 
     76 
     77 version 1.3 26-07-95
     78 --------------------
     79 
     80 * No major news, just a bug fix release ...
     81 
     82 
     83 version 1.2 13-07-95
     84 --------------------
     85 
     86 * Added setting of IU registers through the 'reg' command. See README.
     87 
     88 * The GNU readline() function is used for command input. However, a
     89 ctrl-D still kills the simulator ...
     90 
     91 
     92 version 1.1 07-07-95
     93 --------------------
     94 
     95 
     96 * Added a 'go' command
     97 
     98 * Added cycle counting for interrupt overhead.
     99 
    100 * Function 'get_mem_ptr' takes one more parameter to avoid segmentation 
    101    faults if a.out files are loaded outside the simulated memory. See README.
    102 
    103 * Added user-defined function sim_stop().
    104 
    105 * Added a reset command. See README.
    106 
    107 * Implemented buffered output for MEC uarts to improve output speed.
    108 
    109