Prog Code at mem locations 0000-0001 destroyed

The first two bytes of the program code at memory locations 0000 to 0001 are destroyed after running the program (starting at memory location 0000). sample program: 0000 86 01 LDAA #01...

Id #7 | Release: Sharp6800 1.0.4 | Updated: Jul 7, 2016 at 1:12 AM by RickNungester | Created: Jun 30, 2016 at 10:41 AM by astrocodeplex

6800 instruction LSRA fails (sometimes!)

Replication: Load the attached program (bin2bcd.obj) into Sharp6800. Set a breakpoint at the problem area (BR 004C). Execute (DO 0000, and see "004C 96" as the breakpoint is hit). SS, ACCA (see ...

Id #6 | Release: Sharp6800 1.0.3 | Updated: Jan 7, 2015 at 12:27 AM by RupertAvery | Created: Jan 6, 2015 at 6:02 PM by RickNungester

6800 instruction BLS takes the wrong branch

6800 instruction Branch on Less or Same (BLS) is not emulated correctly. 0001 0000 .org $0000 0002 0000 0003 0000 86 00 MAIN LDAA #0 0004 0002 81 04 ...

Id #5 | Release: Sharp6800 1.0.3 | Updated: Jan 7, 2015 at 12:29 AM by RupertAvery | Created: Jan 6, 2015 at 4:03 PM by RickNungester

Single-Step gives wrong results

Single-Stepping through a "BSR" (branch to subroutine) instruction works fine on a real ET-3400, but the emulator gives incorrect results. See the attached short 6-byte demo program and its commen...

Id #4 | Release: Sharp6800 1.0.3 | Updated: Jan 7, 2015 at 12:30 AM by RupertAvery | Created: Jan 3, 2015 at 11:54 PM by RickNungester

Execution speed can't be adjusted

Heathkit sample program #1 (load file samp123a.s19 and DO 0000) runs too fast on the emulator to see what is happening on the emulated 7-segment LED displays. So I edited the .s19 file directly, c...

Id #3 | Release: None | Updated: Jan 7, 2015 at 12:53 AM by RupertAvery | Created: Aug 26, 2014 at 6:14 PM by RickNungester

View, Debugger causes a program crash

I am running Sharp6800 v1.0.2.0 on a new-in-2012 Dell XPS 8300 PC (64-bit, Windows 7). Starting the program and selecting View, Debugger results in "Sharp6800 has stopped working" "Windows is coll...

Id #2 | Release: None | Updated: Aug 20, 2014 at 8:56 AM by RupertAvery | Created: Jul 8, 2014 at 9:02 PM by RickNungester

README.txt contains only 3 bytes

The v1.0.2.0 /sample/README.txt file contains only 3 bytes, in hex: EF BB BF

Id #1 | Release: None | Updated: Aug 20, 2014 at 8:56 AM by RupertAvery | Created: Jul 7, 2014 at 6:07 AM by RickNungester

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