mpsim.bug

PIC16CXX C语言工具

Bug list for:
		PICSIM 16c5x simulator Version 4.00

This file contains all known bugs for PICSIM versions 3.00 the released
version and 3.00.xx, the patched versions.

Last file update:  Thursday March 25, 1993
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Key Words:      bug, RTCC, F1

DESCRIPTION:    Even though the stimulus file causes RTCC to toggle, F1
		does not increment.

Work around:    None
Related Prob:   None

SSR#:           1012
Version:        PICSIM 3.00.13A
Date:           22 Jan 92
Reported by:    Vance Zook
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Show Stopper
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Key Words:      bug, input file path, path

DESCRIPTION:    When specifying a fully qualified path to an INPUT file,
		the disk mnemonic (ie. A:) is not properly parsed and
		appears as a garbage string during file load functions.

Work around:    Place all files on current DOS default disk.
Related Prob:   None

SSR#:           1013
Version:        3.00.13A
Date:           18 Jan 92
Reported by:    Derek Carlson, Microchip Technology
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Nuisance
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Key Words:      bug, trace, register trace


DESCRIPTION:    When specifying a trace on any register, all
		registers are traced.

Work around:    None
Related Prob:   None

SSR#:           1014
Version:        3.00.13A
Date:           18 Jan 92
Reported by:    Frank Fortino, Ectel
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Nuisance
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Key Words:      bug, TC count, trace

DESCRIPTION:    TC count is "OFF BY ONE."

Work around:    None
Related Prob:   None

SSR#:           1015
Version:        3.00.13A
Date:           18 Jan 92
Reported by:    Derek Carlson, Microchip Technology
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Affected operation
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Key Words:      bug, 8088, system locked

Description:    "Picsim V3.00 locks 8088 based PC AT compatibles."
		PicSim is tested on PC AT (80286) systems and above.  It
		is not compatible with 8088 based systems.  However, the
		program should notify the user of this limitation, and
		not simply hang the system.

Work around:    Use PC AT or above system.
Related Prob:   None

SSR#:           1016
Version:        3.00.13A
Date:           9 Mar 92
Reported by:    Bob Ward, Microchip Technology FAE
Test File:      Not assigned
Status:         Fixed in v. 4.0
Severity:       Nuisance
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Key Words:      bug, 8088, system locked, hung system

Description:    Software distributed a seminars will not simulate a pro-
		grams assembled with output file format INHX8M. This is
		the format specified by the PICSIM Version E manual.
		Alpha versions of the program work fine with this format.

		Further testing reviles that the code is being loaded into
		simulator memory with the byte haves swapped.  ie. an opcode
		0x0123 loads as 0x2301.

Work around:    Use INHX16 file format.
Related Prob:   1041

SSR#:           1017
Version:        3.00
Date:           11 Mar 92
Reported by:    Mike Morse, Microchip Technology FAE
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Affected operation
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Key Words:      bug, dec f, status reg

Description:    The instruction dec f, does not update the status register
		zero flag.

Work around:    None.
Related Prob:   None

SSR#:           1018
Version:        3.00.11
Date:           9 Mar 92
Reported by:    H Burghardt, Microchip Technology FAE
Test File:      T_DECF.asm
Status:         Problem has not yet been duplicated for released version 3.00.
Severity:       Affected operation
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Key Words:      bug, break point, B, BC, break on data address

Description:    A break point can be set on data area "F..", but the break
		point can not be removed.  The B command does not properly
		check the address range for data break points.  However,
		the BC command does check address ranges, recognized that
		0xFxx is an illegal address and aborts the command after
		notifying the user.

Work around:    Use BC (Break Clear) with no parameters to clear all break
		points.
Related Prob:   None

SSR#:           1019
Version:        3.00.11
Date:           9 Mar 92
Reported by:    H Burghardt, Microchip Technology FAE
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Affected operation
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Key Words:      enhancement, symbol value

Description:    When a hex address which has a label is displayed, then
		both the hex value and the label name should be displayed,
		not just the hex value.

Work around:    None.
Related Prob:   None

SSR#:           1040
Version:        3.00.11
Date:           9 Mar 92
Reported by:    H Burghardt, Microchip Technology FAE
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Affected operation
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Key Words:      bug, INHX8M, hung system

Description:    Simulator hangs system when INHX8M file format is loaded.

Work around:    Use INHX16 file format.
Related Prob:   1017

SSR#:           1041
Version:        3.00.11
Date:           9 Mar 92
Reported by:    H Burghardt, Microchip Technology FAE
Test File:      Not assigned
Status:         Fixed in BETA version 3.00.20
Severity:       Affected operation
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Key Words:      enhancement, step count

Description:    Step count is inconsistent with older versions.

		Actually, the current implementation is consistent with
		an even older release.  Version 3.00 ties the step
		count to the number of instructions executed.  Manual
		version E, attempts to clarify this point.  The previous
		version tied the step count to the number of cycles
		executed.

		In a future release, a command switch will be added to allow
		either approach, and the manual will be clarified.

Work around:    None.
Related Prob:   None

SSR#:           1042
Version:        3.00.11
Date:           9 Mar 92
Reported by:    H Burghardt, Microchip Technology FAE
Test File:      Not assigned
Status:         Fixed
		Added new command (IP) in v. 4.1 to inject stimulus either
		according to time or step count.
Severity:       Affected operation
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Key Words:      format,load,manual

Description:    When loading a file into PICSIM in INHX8S format, the manual
		instructs the user to specificy both the .obh and
		the .obl files when using the "lo" command.
		However, if the user follows the manual's instructions,
		PICSIM will issue an error message.
		   

Work around:    Simply use "lo MyProg INHX8S"

Related Prob:   None
SSR#:           1043
Version:        3.00.11
Date:           6 May 92
Reported by:    Feranak Nelson
Test File:      Not assigned
Status:         Fixed in future release of manual.
Severity:       Nuisance
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Key Words:      SF,bug
Description:    The SF command does not display instructions that access
		the specified register.
 
Work around:    None
Related Prob:   None
SSR#:           1044
Version:        3.00.11
Date:           1 June 92
Reported by:    Feranak Nelson
Test File:      Sample.asm
Status:         Fixed in v. 4.0
Severity:       Affected Operation
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Key Words:      SI,bug
Description:    The SI command is supposed to search a specified range of
		program memory and print all occurrences of a certain
		instruction.  Instead, it displays all of the code between
		the first and last occurrence of the instruction within
		the designated range.
 
Work around:    None
Related Prob:   None
SSR#:           1045
Version:        3.00.11
Date:           1 June 92
Reported by:    Feranak Nelson
Test File:      Sample.asm
Status:         Fixed in v. 4.0
Severity:       Nuisance
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Key Words:      Stimulus, Bug
Description:    When using the trace feature, Stimulus is not output
		to the file.
	       
Work around:    None
Related Prob:   None
SSR#:           1046
Version:        3.00.11
Date:           1 June 92
Reported by:    Mike Jedzejewski
Test File:      Not assigned
Status:         Fixed in v. 4.0
Severity:       Affected Operation

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Key Words:      PC,Bug
Description:    The program counter cannot be set to 0x1FF
 
Work around:    None
Related Prob:   None
SSR#:           1047
Version:        3.00.11
Date:           1 June 92
Reported by:    Mike Jedzejewski
Test File:      Not assigned
Status:         Fixed in v. 4.0
Severity:       Affected Operation

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Key Words:      SI,bug
Description:    Cannot go to an address if the symbol type is K (constant)
 
Work around:    None
Related Prob:   None
SSR#:           1048
Version:        3.00.11
Date:           1 June 92
Reported by:    Mike Jedzejewski
Test File:      Not assigned
Status:         Fixed in future release.
Severity:       Affected Operation

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Key Words:      AD, Bug
Description:    Cannot add an item to the view screen if the symbol
		type is L (label)
 
Work around:    None
Related Prob:   None
SSR#:           1049
Version:        3.00.11
Date:           1 June 92
Reported by:    Mike Jedzejewski
Test File:      Not assigned
Status:         Could not reproduce error
Severity:       Affected Operation
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Key Words:      Video Mode, Bug
Description:    Seems to occasionally corrupt video mode on exit if
		other than standard modes are in effect when PICSIM 
		is initiated.

Work around:    None
Related Prob:   None
SSR#:           1090
Version:        3.00.11
Date:           1 June 92
Reported by:    Mike Jedzejewski
Test File:      Not assigned
Status:         Fixed in future release.
Severity:       Nuisance
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Key Words:      PC, RTCC, Watchdog Timer, Bug
Description:    PC modify causes Cycle Count to be "off by one"