relnotes.txt

Nucleus实时操作系统是Accelerater Technology公司开发的嵌入式RTOS产品,Nucleus的核心是一个实时的多任务内核——Nucleus PLUS

              Nucleus PLUS for 68000 using CrossCode

              ********** Release History **********



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Version 1.1.G1.0                                June 6, 1995
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First release of Nucleus PLUS for 68300 using the CrossCode
development tools.


All files have been updated for this release of Nucleus PLUS.


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Version 1.2.G1.2                                April 29, 1996
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The following items were changed or corrected by this
release:

1) NUCLEUS.H - NU_Mailbox_Pointers is not prototyped. (SPR40)

2) NUCLEUS.H - NU_Current_HISR_Ptr is incorrectly mapped 
               when error checking is turned on. (SPR51)

3) TCT.S - TCT_Local_Control_Interrupts function corrupts the
           status register of the 68K. (SPR38)

4) TCT.S - Interrup occuring while TCT_HISR_Shell is altering
           TCD_Interrupt_Level. (SPR80)

5) BUILD_LI.BAT - tcf.o was not in lib. (SPR109)

6) int_sim.s - new int_sim.s (SPR57 and see APPENDEX)

Nucleus PLUS generic version 1.2:

-  PICE.C       Corrected bug in PICE_Receive_From_Pipe where variable size
                pipes where being treated liked fixed size pipes. (SPR65)

-  TCC.C        Corrected bug in TCC_Resume_Service where "task" parameter in
                the HIC_Make_History_Entry call should be "task_ptr". (SPR36,
                SPR64, SPR66, SPR77)

-  TCCE.C       Enhanced TCCE_Task_Sleep where we now return if a sleep time
                value of 0 or less is passed in. (SPR37)

-  TCS.C        Corrected bug in TCS_Send_Signals where the tc_enabled_signals
                mask was not being checked before trying to execute the signal
                handler. (SPR107)

-  TMC.C        Corrected numerous timer problems. (SPR52)

-  RLD.C        Updated Release string to represent Generic 1.2 release.

-  TC_EXTR.H    Corrected a typo in the function prototype for
                INT TCT_Control_Interrupts(INT new_level); (SPR??)

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Version 1.11.3                                   June 11, 1999
**************************************************************

Updated the PLUS port to use the latest generic code, Release 11.





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APPENDEX

About simulation


In order to get int_sim.s to work correctly with the timer in the SDS Single
Step debugger, sstep.ini must be modified as follows:

	- find the line that says
		set vectskip = (60-63)
	  and change it so that it reads
                set vectskip = ( 25, 60-63)

	- at the very end of the file add the line
		set timer_addr = 0xfffff8

	- comment out all of the "mem" commands (unless you have already
	  set up your own map)

Also, make sure all files are compiled with full debugging information.


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