development/dis6502: Added (flow-tracing disassembler for 6502).

Signed-off-by: David Spencer <idlemoor@slackbuilds.org>

10 files changed, 961 insertions, 0 deletions

diff --git a/development/dis6502/README b/development/dis6502/README
new file mode 100644
index 0000000000000..006bfd5fc0298
--- /dev/null
+++ b/development/dis6502/README
@@ -0,0 +1,10 @@
+dis6502 (flow-tracing disassembler for 6502)
+
+dis6502 is a 6502 disassembler that supports Atari 8-bit and Commodore
+executables, as well as raw memory dumps. It attempts to separate code
+sections from data by tracing the flow of execution, and supports a config
+file for manually defining code sections that aren't reached by the trace.
+
+Note: This is NOT the dis6502 from AtariMax. Although the name is the
+same, AtariMax's disassembler is completely different (for one thing,
+it's a Windows GUI application).
diff --git a/development/dis6502/atari8.predefs b/development/dis6502/atari8.predefs
new file mode 100644
index 0000000000000..8664c1c90e76e
--- /dev/null
+++ b/development/dis6502/atari8.predefs
@@ -0,0 +1,414 @@
+LINZBS .equ 0    
+NGFLAG .equ 1    
+CASINI .equ 2    
+RAMLO .equ 4    
+TRAMSZ .equ 6    
+TSTDAT .equ 7    
+WARMST .equ 8    
+BOOTQ .equ 9    
+DOSVEC .equ 10    
+DOSINI .equ 12    
+APPMHI .equ 14    
+POKMSK .equ 16    
+BRKKEY .equ 17    
+RTCLOK .equ 18    
+BUFADR .equ 21    
+ICCOMT .equ 23    
+DSKFMS .equ 24    
+DSKUTL .equ 26    
+PTIMOT .equ 28    
+ABUFPT .equ 28    
+PBPNT .equ 29    
+PBUFSZ .equ 30    
+PTEMP .equ 31    
+ZIOCB .equ 32    
+ICHIDZ .equ 32    
+ICDNOZ .equ 33    
+ICCOMZ .equ 34    
+ICSTAZ .equ 35    
+ICBALZ .equ 36    
+ICBAHZ .equ 37    
+ICPTLZ .equ 38    
+ICPTHZ .equ 39    
+ICBLLZ .equ 40    
+ICBLHZ .equ 41    
+ICAX1Z .equ 42    
+ICAX2Z .equ 43    
+ICSPRZ .equ 44    
+ICIDNO .equ 46    
+CIOCHR .equ 47    
+STATUS .equ 48    
+CHKSUM .equ 49    
+BUFRLO .equ 50    
+BUFRHI .equ 51    
+BFENLO .equ 52    
+BFENHI .equ 53    
+CRETRY .equ 54    
+XL_LTEMP .equ 54    
+DRETRY .equ 55    
+BUFRFL .equ 56    
+RECVDN .equ 57    
+XMTDON .equ 58    
+CHKSNT .equ 59    
+NOCKSM .equ 60    
+BPTR .equ 61    
+FTYPE .equ 62    
+FEOF .equ 63    
+FREQ .equ 64    
+SOUNDR .equ 65    
+CRITIC .equ 66    
+FMSZPG .equ 67    
+CKEY .equ 74    
+XL_ZCHAIN .equ 74    
+CASSBT .equ 75    
+DSTAT .equ 76    
+ATRACT .equ 77    
+DRKMSK .equ 78    
+COLRSH .equ 79    
+TMPCHR .equ 80    
+HOLD1 .equ 81    
+LMARGN .equ 82    
+RMARGN .equ 83    
+ROWCRS .equ 84    
+COLCRS .equ 85    
+DINDEX .equ 87    
+SAVMSC .equ 88    
+OLDROW .equ 90    
+OLDCOL .equ 91    
+OLDCHR .equ 93    
+OLDADR .equ 94    
+NEWROW .equ 96    
+XL_FKDEF .equ 96    
+NEWCOL .equ 97    
+XL_PALNTS .equ 98    
+LOGCOL .equ 99    
+MLTTMP .equ 102    
+OPNTMP .equ 102    
+SAVADR .equ 104    
+RAMTOP .equ 106    
+BUFCNT .equ 107    
+BUFSTR .equ 108    
+BITMSK .equ 110    
+SHFAMT .equ 111    
+ROWAC .equ 112    
+COLAC .equ 114    
+ENDPT .equ 116    
+DELTAR .equ 118    
+DELTAC .equ 119    
+ROWINC .equ 121    
+XL_KEYDEF .equ 121    
+COLINC .equ 122    
+SWPFLG .equ 123    
+HOLDCH .equ 124    
+INSDAT .equ 125    
+COUNTR .equ 126    
+ZROFRE .equ 128    
+FPZRO .equ 212    
+FR0 .equ 212    
+FRE .equ 218    
+FR1 .equ 224    
+FR2 .equ 230    
+FRX .equ 236    
+EEXP .equ 237    
+NSIGN .equ 237    
+ESIGN .equ 239    
+FCHFLG .equ 240    
+DIGRT .equ 241    
+CIX .equ 242    
+INBUFF .equ 243    
+ZTEMP1 .equ 245    
+ZTEMP4 .equ 247    
+ZTEMP3 .equ 249    
+DEGFLG .equ 251    
+RADFLG .equ 251    
+FLPTR .equ 252    
+FPTR2 .equ 254    
+INTABS .equ 512  
+VDSLST .equ 512  
+VPRCED .equ 514  
+VINTER .equ 516  
+VBREAK .equ 518  
+VKEYBD .equ 520  
+VSERIN .equ 522  
+VSEROR .equ 524  
+VSEROC .equ 526  
+VTIMR1 .equ 528  
+VTIMR2 .equ 530  
+VTIMR4 .equ 532  
+VIMIRQ .equ 534  
+CDTMV1 .equ 536  
+CDTMV2 .equ 538  
+CDTMV3 .equ 540  
+CDTMV4 .equ 542  
+CDTMV5 .equ 544  
+VVBLKI .equ 546  
+VVBLKD .equ 548  
+CDTMA1 .equ 550  
+CDTMA2 .equ 552  
+CDTMF3 .equ 554  
+SRTIMR .equ 555  
+CDTMF4 .equ 556  
+INTEMP .equ 557  
+CDTMF5 .equ 558  
+SDMCTL .equ 559  
+SDLSTL .equ 560  
+SSKCTL .equ 562  
+XL_LCOUNT .equ 563  
+LPENH .equ 564  
+LPENV .equ 565  
+XL_RELADR .equ 568  
+CDEVIC .equ 570  
+CAUX1 .equ 572  
+CAUX2 .equ 573  
+TEMP .equ 574  
+ERRFLG .equ 575  
+DFLAGS .equ 576  
+DBSECT .equ 577  
+BOOTAD .equ 578  
+COLDST .equ 580  
+XL_RECLEN .equ 581  
+DSKTIM .equ 582  
+LINBUF .equ 583  
+XL_CHSALT .equ 619  
+XL_VSFLAG .equ 620  
+XL_KEYDIS .equ 621  
+XL_FINE .equ 622  
+GPRIOR .equ 623  
+GTIA .equ 623  
+PADDL0 .equ 624  
+STICK0 .equ 632  
+PTRIG0 .equ 636  
+STRIG0 .equ 644  
+CSTAT .equ 648  
+WMODE .equ 649  
+BLIM .equ 650  
+XL_NEWADR .equ 654  
+TXTROW .equ 656  
+TXTCOL .equ 657  
+TINDEX .equ 659  
+TXTMSC .equ 660  
+TXTOLD .equ 662  
+TMPX1 .equ 668  
+XL_CRETRY .equ 668  
+SUBTMP .equ 670  
+HOLD2 .equ 671  
+DMASK .equ 672  
+TMPLBT .equ 673  
+ESCFLG .equ 674  
+TABMAP .equ 675  
+LOGMAP .equ 690  
+INVFLG .equ 694  
+FILFLG .equ 695  
+TMPROW .equ 696  
+TMPCOL .equ 697  
+SCRFLG .equ 699  
+HOLD4 .equ 700  
+HOLD5 .equ 701  
+XL_DRETRY .equ 701  
+SHFLOC .equ 702  
+BOTSCR .equ 703  
+PCOLR0 .equ 704  
+PCOLR1 .equ 705
+PCOLR2 .equ 706
+PCOLR3 .equ 707
+COLOR0 .equ 708  
+COLOR1 .equ 709
+COLOR2 .equ 710
+COLOR3 .equ 711
+COLOR4 .equ 712
+XL_RUNADR .equ 713  
+XL_HIUSED .equ 715  
+XL_ZHIUSE .equ 717  
+XL_GBYTEA .equ 719  
+XL_LOADAD .equ 721  
+XL_ZLOADA .equ 723  
+XL_DSCTLN .equ 725  
+XL_ACMISR .equ 727  
+XL_KRPDER .equ 729  
+XL_KEYREP .equ 730  
+XL_NOCLIK .equ 731  
+XL_HELPFG .equ 732  
+XL_DMASAV .equ 733  
+XL_PBPNT .equ 734  
+XL_PBUFSZ .equ 735  
+GLBABS .equ 736  
+RUNAD .equ 736  
+INITAD .equ 738  
+RAMSIZ .equ 740  
+MEMTOP .equ 741  
+MEMLO .equ 743  
+XL_HNDLOD .equ 745  
+DVSTAT .equ 746  
+CBAUDL .equ 750  
+CRSINH .equ 752  
+KEYDEL .equ 753  
+CH1 .equ 754  
+CHACT .equ 755  
+CHBAS .equ 756  
+XL_NEWROW .equ 757  
+XL_NEWCOL .equ 758  
+XL_ROWINC .equ 760  
+XL_COLINC .equ 761  
+CHAR .equ 762  
+ATACHR .equ 763  
+CH .equ 764  
+FILDAT .equ 764  
+DSPFLG .equ 766  
+SSFLAG .equ 767  
+DCB .equ 768  
+DDEVIC .equ 768  
+DUNIT .equ 769  
+DCOMND .equ 770  
+DSTATS .equ 771  
+DBUFLO .equ 772  
+DBUFHI .equ 773  
+DTIMLO .equ 774  
+DBYTLO .equ 776  
+DBYTHI .equ 777  
+DAUX1 .equ 778  
+DAUX2 .equ 779  
+TIMER1 .equ 780  
+ADDCOR .equ 782  
+XL_JMPERS .equ 782  
+CASFLG .equ 783  
+TIMER2 .equ 784  
+TEMP1 .equ 786  
+XL_TEMP2 .equ 787  
+TEMP2 .equ 788  
+XL_PTIMOT .equ 788  
+TEMP3 .equ 789  
+SAVIO .equ 790  
+TIMFLG .equ 791  
+STACKP .equ 792  
+TSTAT .equ 793  
+HATABS .equ 794  
+MAXDEV .equ 801  
+XL_PUPBT1 .equ 829  
+XL_PUPBT2 .equ 830  
+XL_PUPBT3 .equ 831  
+IOCB .equ 832  
+ICHID .equ 832  
+ICDNO .equ 833  
+ICCOM .equ 834  
+ICSTA .equ 835  
+ICBAL .equ 836  
+ICBAH .equ 837  
+ICPTL .equ 838  
+ICPTH .equ 839  
+ICBLL .equ 840  
+ICBLH .equ 841  
+ICAX1 .equ 842  
+ICAX2 .equ 843  
+ICAX3 .equ 844  
+ICAX4 .equ 845  
+ICAX5 .equ 846  
+ICAX6 .equ 847  
+PRNBUF .equ 960  
+XL_SUPERF .equ 1000  
+XL_CKEY .equ 1001  
+XL_CASSBT .equ 1002  
+XL_CARTCK .equ 1003  
+XL_ACMVAR .equ 1005  
+XL_MINTLK .equ 1017  
+XL_GINTLK .equ 1018  
+XL_CHLINK .equ 1019  
+CASBUF .equ 1021  
+USAREA .equ 1152  
+PAGE5 .equ 1280  
+LBPR1 .equ 1406  
+LBPR2 .equ 1534  
+LBUFF .equ 1408  
+PLYARG .equ 1504  
+FPSCR .equ 1510  
+FPSCR1 .equ 1516  
+FSCR .equ 1510  
+FSCR1 .equ 1516  
+LBFEND .equ 1535  
+PAGE6 .equ 1536  
+BOOTRG .equ 1792  
+RITCAR .equ 32768  
+LFTCAR .equ 40960  
+C0PAGE .equ 49152  
+C0PAGE .equ 49152  
+CHORG2 .equ 52224  
+HPOSP0 .equ 53248  
+M0PF .equ 53248  
+SIZEP0 .equ 53256  
+M0PL .equ 53256  
+SIZEM .equ 53260  
+GRAFP0 .equ 53261  
+GRAFM .equ 53265  
+COLPM0 .equ 53266  
+COLPF0 .equ 53270  
+PRIOR .equ 53275  
+GTIAR .equ 53275  
+VDELAY .equ 53276  
+GRACTL .equ 53277  
+HITCLR .equ 53278  
+CONSOL .equ 53279  
+AUDF1 .equ 53760  
+AUDC1 .equ 53761  
+AUDCTL .equ 53768  
+RANDOM .equ 53770  
+IRQEN .equ 53774  
+SKCTL .equ 53775  
+PORTA .equ 54016  
+PORTB .equ 54017  
+PACTL .equ 54018  
+PBCTL .equ 54019  
+DMACLT .equ 54272  
+DLISTL .equ 54274  
+HSCROL .equ 54276  
+VSCROL .equ 54277  
+CHBASE .equ 54281  
+WSYNC .equ 54282  
+VCOUNT .equ 54283  
+NMIEN .equ 54286  
+AFP .equ 55296  
+FASC .equ 55526  
+IFP .equ 55722  
+FPI .equ 55762  
+ZFR0 .equ 55876  
+ZF1 .equ 55878  
+FSUB .equ 55904  
+FADD .equ 55910  
+FMUL .equ 56027  
+FDIV .equ 56104  
+PLYEVL .equ 56640  
+FLD0R .equ 56713  
+FLD0P .equ 56717  
+FLD1R .equ 56728  
+FLD1P .equ 56732  
+FSTOR .equ 56743  
+FSTOP .equ 56747  
+FMOVE .equ 56758  
+EXP .equ 56768  
+EXP10 .equ 56780  
+LOG .equ 57037  
+LOG10 .equ 57041  
+CHORG .equ 57344  
+VECTBL .equ 58368  
+VCTABL .equ 58496  
+CIOORG .equ 58534  
+INTORG .equ 59093  
+SIOORG .equ 59716  
+DSKORT .equ 60906  
+PRNORG .equ 61048  
+CASORG .equ 61048  
+MONORG .equ 61667  
+KBDORG .equ 62436  
+EDITRV .equ 58368  
+SCRENV .equ 58384  
+KEYBDV .equ 58400  
+PRINTV .equ 58416  
+CASETV .equ 58432  
+DSKINV .equ 58451  
+CIOV .equ 58454  
+SIOV .equ 58457  
+SYSVBV .equ 58463  
+VBIVAL .equ 58464  
+XITVBV .equ 58466  
+VBIXVL .equ 58467  
+BLKBDV .equ 58481  
+WARMSV .equ 58484  
+COLDSV .equ 58487  
diff --git a/development/dis6502/c64.predefs b/development/dis6502/c64.predefs
new file mode 100644
index 0000000000000..0003f77b4cd60
--- /dev/null
+++ b/development/dis6502/c64.predefs
@@ -0,0 +1,92 @@
+CINT		.equ	65409
+IOINIT		.equ	65412
+RAMTAS		.equ	65415
+RESTOR		.equ	65418
+VECTOR		.equ	65421
+SETMSG		.equ	65424
+SECOND		.equ	65427
+TKSA		.equ	65430
+MEMTOP		.equ	65433
+MEMBOT		.equ	65436
+SCNKEY		.equ	65439
+SETTMO		.equ	65442
+ACPTR		.equ	65445
+CIOUT		.equ	65448
+UNTLK		.equ	65451
+UNLSN		.equ	65454
+LISTEN		.equ	65457
+TALK		.equ	65460
+READST		.equ	65463
+SETLFS		.equ	65466
+SETNAM		.equ	65469
+OPEN		.equ	65472
+CLOSE		.equ	65475
+CHKIN		.equ	65478
+CHKOUT		.equ	65481
+CLRCHN		.equ	65484
+CHRIN		.equ	65487
+CHROUT		.equ	65490
+LOAD		.equ	65493
+SAVE		.equ	65496
+SETTIM		.equ	65499
+RDTIME		.equ	65502
+STOP		.equ	65505
+GETIN		.equ	65508
+CLALL		.equ	65511
+UDTIME		.equ	65514
+SCREEN		.equ	65517
+PLOT		.equ	65520
+IOBASE		.equ	65523
+IERRORLO	.equ	768
+IERRORHI	.equ	769
+IMAINLO		.equ	770
+IMAINHI		.equ	771
+ICRNCHLO	.equ	772
+ICRNCHHI	.equ	773
+IQPLOPLO	.equ	774
+IQPLOPHI	.equ	775
+IGONELO		.equ	776
+IGONEHI		.equ	777
+IEVALLO		.equ	778
+IEVALHI		.equ	779
+SAREG		.equ	780
+SXREG		.equ	781
+SYREG		.equ	782
+SPREG		.equ	783
+USRPOK		.equ	784
+USRADDLO	.equ	785
+USRADDHI	.equ	786
+CINVLO		.equ	788
+CINVHI		.equ	789
+CBINVLO		.equ	790
+CBINVHI		.equ	791
+NMINVLO		.equ	792
+NMINVHI		.equ	793
+IOPENLO		.equ	794
+IOPENHI		.equ	795
+ICLOSELO	.equ	796
+ICLOSEHI	.equ	797
+ICKINLO		.equ	798
+ICKINHI		.equ	799
+ICKOUTLO	.equ	800
+ICKOUTHI	.equ	801
+ICLRCHLO	.equ	802
+ICLRCHHI	.equ	803
+IBASINLO	.equ	804
+IBASINHI	.equ	805
+IBSOUTLO	.equ	806
+IBSOUTHI	.equ	807
+ISTOPLO		.equ	808
+ISTOPHI		.equ	809
+IGETINLO	.equ	810
+IGETINHI	.equ	811
+ICLALLLO	.equ	812
+ICLALLHI	.equ	813
+USRCMDLO	.equ	814
+USRCMDHI	.equ	815
+ILOADLO		.equ	816
+ILOADHI		.equ	817
+ISAVELO		.equ	818
+ISAVEHI		.equ	819
+TBUFFER		.equ	828
+VICSCN		.equ	1024
diff --git a/development/dis6502/compilefix.diff b/development/dis6502/compilefix.diff
new file mode 100644
index 0000000000000..00a76e9d6534f
--- /dev/null
+++ b/development/dis6502/compilefix.diff
@@ -0,0 +1,12 @@
+diff -Naur dis6502-0.12/lex.l dis6502-0.12.patched/lex.l
+--- dis6502-0.12/lex.l	2004-01-17 18:25:28.000000000 -0500
++++ dis6502-0.12.patched/lex.l	2017-09-08 00:44:16.631761979 -0400
+@@ -91,7 +91,7 @@
+ emalloc(n)
+ unsigned n;
+ {
+-	char *ptr, *malloc();
++	char *ptr;
+ 
+ 	if ((ptr = malloc(n)) == (char *) 0) {
+ 		(void) fprintf(stderr,"out of core");
diff --git a/development/dis6502/dis6502.1 b/development/dis6502/dis6502.1
new file mode 100644
index 0000000000000..458f8fd3835e0
--- /dev/null
+++ b/development/dis6502/dis6502.1
@@ -0,0 +1,176 @@
+.\" Man page generated from reStructuredText.
+.
+.TH DIS6502 1 "2017-09-08" "0.12" "SlackBuilds.org"
+.SH NAME
+dis6502 \- Disassemble 6502 object code
+.
+.nr rst2man-indent-level 0
+.
+.de1 rstReportMargin
+\\$1 \\n[an-margin]
+level \\n[rst2man-indent-level]
+level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
+-
+\\n[rst2man-indent0]
+\\n[rst2man-indent1]
+\\n[rst2man-indent2]
+..
+.de1 INDENT
+.\" .rstReportMargin pre:
+. RS \\$1
+. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
+. nr rst2man-indent-level +1
+.\" .rstReportMargin post:
+..
+.de UNINDENT
+. RE
+.\" indent \\n[an-margin]
+.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.nr rst2man-indent-level -1
+.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
+..
+.\" RST source for dis6502(1) man page. Convert with:
+.
+.\" rst2man.py dis6502.rst > dis6502.1
+.
+.\" rst2man.py comes from the SBo development/docutils package.
+.
+.SH SYNOPSIS
+.sp
+dis6502 [\fI\-b\fP | \fI\-l\fP | \fI\-c\fP | \fI\-r <address>\fP] [\fI\-a\fP] [\fI\-p <pfile>\fP] [\fI\-v <address>\fP] [\fI\-7\fP] \fIfile\fP
+.SH DESCRIPTION
+.sp
+Dis6502 disassembles 6502 binary files. Binary formats understood include
+Atari binary files (L menu command) and boot files. Equate and control
+files can be included via the option to name well known locations and to
+control the disassembly process. The output includes a cross reference.
+.sp
+The disassembly process is a two pass operation: First the program flow
+is traced starting with the init and run parameters in the file headers.
+The dump routine then prints out the information.
+.SH OPTIONS
+.INDENT 0.0
+.TP
+.B \fB\-r\fP \fI<address\fP>
+\fIfile\fP is raw binary, located at \fI<address>\fP\&.
+.TP
+.B \fB\-b\fP
+\fIfile\fP is an Atari boot image (disk or cassette). Note that neither .ATR
+nor .CAS images are supported: the file must be a raw image with no header
+information. For disks, this is called an XFD file.
+.TP
+.B \fB\-l\fP
+\fIfile\fP is an Atari load file (aka XEX).
+.TP
+.B \fB\-c\fP
+\fIfile\fP is a Commodore 64 executable.
+.TP
+.B \fB\-a\fP
+Generate assembly output. Suppresses the addresses and object
+code normally printed on each line of output, and omits the
+cross\-reference section from the end of the output.
+.TP
+.B \fB\-p\fP \fI<pfile>\fP
+Use predefinition file. See \fBFILE FORMAT\fP for the predef file format.
+Up to 10 \fB\-p\fP options may be included.
+.TP
+.B \fB\-v\fP \fI<address>\fP
+Alternate vector address (normally \fB$FFFA\fP). This option only has
+any effect with raw binaries (\fB\-r\fP option).
+.TP
+.B \fB\-7\fP
+Mask character data to 7\-bit.
+.UNINDENT
+.SH FILES
+.sp
+\fB/usr/share/dis6502/atari8.predef\fP
+.sp
+\fB/usr/share/dis6502/c64.predef\fP
+.sp
+Predefinition files for Atari 8\-bit and Commodore 64, containing the usual
+system equates.
+.SH FILE FORMAT
+.sp
+Lines in a predefinition file consist of:
+.sp
+\fBlabel\fP .eq \fIaddress\fP
+.sp
+\fBlabel\fP .equ \fIaddress\fP
+.INDENT 0.0
+.INDENT 3.5
+Defines a label. The \fB\&.eq\fP and \fB\&.equ\fP forms are equivalent.
+.UNINDENT
+.UNINDENT
+.sp
+\fB\&.jtab2\fP \fIlowaddr,hiaddr,count\fP
+.INDENT 0.0
+.INDENT 3.5
+Defines a table of \fIcount\fP pointers, split into low and
+high byte tables. In assembly code, such a table might look like:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+; func1, func2, func3 are addresses.
+table_lo: .byte <func1, <func2, <func3
+table_hi: .byte >func1, >func2, >func3
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+To disassemble these, assuming the address of \fItable_lo\fP is \fB$1000\fP,
+use:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\&.jtab2 $1000,$1003,3
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.UNINDENT
+.UNINDENT
+.sp
+\fB\&.rtstab\fP \fIlowaddr\fP,*hiaddr*,*count*
+.INDENT 0.0
+.INDENT 3.5
+Like \fB\&.jtab2\fP, but each entry contains the target address minus one, for use with RTS.
+.UNINDENT
+.UNINDENT
+.sp
+\fB\&.trace\fP \fIaddress\fP
+.INDENT 0.0
+.INDENT 3.5
+Causes the trace process to continue at \fIaddress\fP\&.
+.UNINDENT
+.UNINDENT
+.sp
+\fB\&.stop\fP \fIaddress\fP
+.INDENT 0.0
+.INDENT 3.5
+Causes the trace process to stop at \fIaddress\fP\&.
+.UNINDENT
+.UNINDENT
+.SH COPYRIGHT
+.sp
+dis6502 is distributed under the terms of the Free Software Foundation\(aqs
+General Public License, Version 2. See the file
+/usr/doc/dis6502\-0.12/COPYING for license information.
+.SH AUTHORS
+.sp
+dis6502 was written by Robert Bond, Udi Finkelstein, and Eric Smith.
+.sp
+This man page written for the SlackBuilds.org project
+by B. Watson, and is licensed under the WTFPL.
+.SH SEE ALSO
+.sp
+dis(1), da65(1)
+.sp
+The dis6502 homepage: \fI\%http://www.brouhaha.com/~eric/software/dis6502/\fP
+.\" Generated by docutils manpage writer.
+.
diff --git a/development/dis6502/dis6502.SlackBuild b/development/dis6502/dis6502.SlackBuild
new file mode 100644
index 0000000000000..baef9520a02d5
--- /dev/null
+++ b/development/dis6502/dis6502.SlackBuild
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+# Slackware build script for dis6502
+
+# Written by B. Watson (yalhcru@gmail.com)
+
+# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
+
+PRGNAM=dis6502
+VERSION=${VERSION:-0.12}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+chmod 644 *
+
+patch -p1 < $CWD/compilefix.diff
+patch -p1 < $CWD/helpformat.diff # add missing \n to last line of usage msg
+make CFLAGS="$SLKCFLAGS"
+
+mkdir -p $PKG/usr/bin $PKG/usr/man/man1
+install -s -m0755 $PRGNAM $PKG/usr/bin
+
+# man page based on the one from comp.sources.amiga v02i053 release, dated
+# October 1986,
+gzip -9c < $CWD/$PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz
+
+# c64.predefs file is a modified version of the one from the
+# comp.sources.amiga v02i053 release. atari8.predefs file was created
+# by the SlackBuild author.
+mkdir -p $PKG/usr/share/$PRGNAM
+cat $CWD/c64.predefs > $PKG/usr/share/$PRGNAM/c64.predefs
+cat $CWD/atari8.predefs > $PKG/usr/share/$PRGNAM/atari8.predefs
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a README* COPYING $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
diff --git a/development/dis6502/dis6502.info b/development/dis6502/dis6502.info
new file mode 100644
index 0000000000000..62c648c8e6745
--- /dev/null
+++ b/development/dis6502/dis6502.info
@@ -0,0 +1,10 @@
+PRGNAM="dis6502"
+VERSION="0.12"
+HOMEPAGE="http://www.brouhaha.com/~eric/software/dis6502/"
+DOWNLOAD="http://www.brouhaha.com/~eric/software/dis6502/dis6502-0.12.tar.gz"
+MD5SUM="6b865314f1d7d8629fd3c7f7e390b099"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="B. Watson"
+EMAIL="yalhcru@gmail.com"
diff --git a/development/dis6502/dis6502.rst b/development/dis6502/dis6502.rst
new file mode 100644
index 0000000000000..dae1d3efd5fc5
--- /dev/null
+++ b/development/dis6502/dis6502.rst
@@ -0,0 +1,138 @@
+.. RST source for dis6502(1) man page. Convert with:
+..   rst2man.py dis6502.rst > dis6502.1
+.. rst2man.py comes from the SBo development/docutils package.
+
+.. |version| replace:: 0.12
+.. |date| date::
+
+=======
+dis6502
+=======
+
+----------------------------
+Disassemble 6502 object code
+----------------------------
+
+:Manual section: 1
+:Manual group: SlackBuilds.org
+:Date: |date|
+:Version: |version|
+
+SYNOPSIS
+========
+
+dis6502 [*-b* | *-l* | *-c* | *-r <address>*] [*-a*] [*-p <pfile>*] [*-v <address>*] [*-7*] *file*
+
+DESCRIPTION
+===========
+
+Dis6502 disassembles 6502 binary files. Binary formats understood include
+Atari binary files (L menu command) and boot files. Equate and control
+files can be included via the option to name well known locations and to
+control the disassembly process. The output includes a cross reference.
+
+The disassembly process is a two pass operation: First the program flow
+is traced starting with the init and run parameters in the file headers.
+The dump routine then prints out the information.
+
+OPTIONS
+=======
+
+**-r** *<address*>
+  *file* is raw binary, located at *<address>*.
+
+**-b**
+  *file* is an Atari boot image (disk or cassette). Note that neither .ATR
+  nor .CAS images are supported: the file must be a raw image with no header
+  information. For disks, this is called an XFD file.
+
+**-l**
+  *file* is an Atari load file (aka XEX).
+
+**-c**
+  *file* is a Commodore 64 executable.
+
+**-a**
+  Generate assembly output. Suppresses the addresses and object
+  code normally printed on each line of output, and omits the
+  cross-reference section from the end of the output.
+
+**-p** *<pfile>*
+  Use predefinition file. See **FILE FORMAT** for the predef file format.
+  Up to 10 **-p** options may be included.
+
+**-v** *<address>*
+  Alternate vector address (normally **$FFFA**). This option only has
+  any effect with raw binaries (**-r** option).
+
+**-7**
+  Mask character data to 7-bit.
+
+FILES
+=====
+
+**/usr/share/dis6502/atari8.predef**
+
+**/usr/share/dis6502/c64.predef**
+
+Predefinition files for Atari 8-bit and Commodore 64, containing the usual
+system equates.
+
+FILE FORMAT
+===========
+
+Lines in a predefinition file consist of:
+
+**label** .eq *address*
+
+**label** .equ *address*
+
+  Defines a label. The **.eq** and **.equ** forms are equivalent.
+
+**.jtab2** *lowaddr,hiaddr,count*
+
+  Defines a table of *count* pointers, split into low and
+  high byte tables. In assembly code, such a table might look like::
+
+    ; func1, func2, func3 are addresses.
+    table_lo: .byte <func1, <func2, <func3
+    table_hi: .byte >func1, >func2, >func3
+
+  To disassemble these, assuming the address of *table_lo* is **$1000**,
+  use::
+
+    .jtab2 $1000,$1003,3
+
+**.rtstab** *lowaddr*\,*hiaddr*\,*count*
+
+  Like **.jtab2**, but each entry contains the target address minus one, for use with RTS.
+
+**.trace** *address*
+
+  Causes the trace process to continue at *address*.
+
+**.stop** *address*
+
+  Causes the trace process to stop at *address*.
+
+COPYRIGHT
+=========
+
+dis6502 is distributed under the terms of the Free Software Foundation's
+General Public License, Version 2. See the file
+/usr/doc/dis6502-|version|/COPYING for license information.
+
+AUTHORS
+=======
+
+dis6502 was written by Robert Bond, Udi Finkelstein, and Eric Smith.
+
+This man page written for the SlackBuilds.org project
+by B. Watson, and is licensed under the WTFPL.
+
+SEE ALSO
+========
+
+dis(1), da65(1)
+
+The dis6502 homepage: http://www.brouhaha.com/~eric/software/dis6502/
diff --git a/development/dis6502/helpformat.diff b/development/dis6502/helpformat.diff
new file mode 100644
index 0000000000000..bda1ffcecdf68
--- /dev/null
+++ b/development/dis6502/helpformat.diff
@@ -0,0 +1,12 @@
+diff -Naur dis6502-0.12.orig/initopts.c dis6502-0.12/initopts.c
+--- dis6502-0.12.orig/initopts.c	2004-01-17 18:25:29.000000000 -0500
++++ dis6502-0.12/initopts.c	2006-11-24 18:56:32.000000000 -0500
+@@ -30,7 +30,7 @@
+                    "  options:  -a             assembly output\n"
+                    "            -p <file>      predefs\n"
+ 	           "            -v <address>   alternate vector address\n"
+-	   	   "            -7             mask character data to 7-bit",
++	   	   "            -7             mask character data to 7-bit\n",
+ 	   progname);
+   exit (1);
+ }
diff --git a/development/dis6502/slack-desc b/development/dis6502/slack-desc
new file mode 100644
index 0000000000000..ed7ac48766b5c
--- /dev/null
+++ b/development/dis6502/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+       |-----handy-ruler------------------------------------------------------|
+dis6502: dis6502 (flow-tracing disassembler for 6502)
+dis6502:
+dis6502: dis6502 is a 6502 disassembler that supports Atari 8-bit and Commodore
+dis6502: executables, as well as raw memory dumps. It attempts to separate code
+dis6502: sections from data by tracing the flow of execution, and supports a
+dis6502: config file for manually defining code sections that aren't reached
+dis6502: by the trace.
+dis6502:
+dis6502:
+dis6502:
+dis6502: