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cleanup

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Michael Steil 2008-10-19 11:19:28 +00:00
parent 2b91b483df
commit e848acd22a
2 changed files with 24 additions and 10 deletions
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32
msbasic.s
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@ -1,16 +1,16 @@
; Microsoft BASIC for 6502
;
; This is a single integrated assembly source tree that can generate any of seven different
; versions of Microsoft BASIC for 6502.
; (first revision of this distribution, 20 Oct 2008, Michael Steil www.pagetable.com)
;
; By running ./make.sh, this will generate all versions and compare them to the original
; files byte by byte.
; This is a single integrated assembly source tree that can generate seven different versions of
; Microsoft BASIC for 6502.
;
; The CC65 compiler suite is need to build this project.
; By running ./make.sh, this will generate all versions and compare them to the original files
; byte by byte. The CC65 compiler suite is need to build this project.
;
; These are the first eight (knows) versions of Microsoft BASIC for 6502:
; These are the first eight (known) versions of Microsoft BASIC for 6502:
;
; Name Release MS Version ROM 9digit INPUTBUFFER extensions comment
; Name Release MS Version ROM 9digit INPUTBUFFER extensions .define
;---------------------------------------------------------------------------------------------------
; Commodore BASIC 1 1977 Y Y ZP CBM
; OSI BASIC 1977 1.0 REV 3.2 Y N ZP - CONFIG_10A
@ -27,8 +27,12 @@
; Commodore BASIC 1, as used on the original PET is the oldest known version of Microsoft BASIC
; for 6502. It contains some additions to Microsoft's version, like Commodore-style file I/O.
;
; The CONFIG_n defines specify what Microsoft-version the OEM version is based on.
; The CONFIG_n defines specify what Microsoft-version the OEM version is based on. If CONFIG_2B
; is defined, for example, CONFIG_2A, CONFIG_2, CONFIG_11A, CONFIG_11 and CONFIG_10A will be
; defined as well, and all bugfixes up to version 2B will be enabled.
;
; The following symbols can be defined in addition:
;
; CONFIG_CBM1_PATCHES jump out into CBM1's binary patches instead of doing the right thing inline
; CONFIG_CBM_ALL add all Commodore-specific additions except file I/O
; CONFIG_DATAFLG ?
@ -49,6 +53,16 @@
; CONFIG_SAFE_NAMENOTFOUND check both bytes of the caller's address in NAMENOTFOUND
; CONFIG_SCRTCH_ORDER where in the init code to call SCRTCH
; CONFIG_SMALL use 6 digit FP instead of 9 digit, use 2 character error messages, don't have GET
;
; Changing symbol definitions can alter an existing base configuration, but it not guaranteed to assemble
; or work correctly.
;
; Credits:
; * main work by Michael Steil
; * function names and all uppercase taken from Bob Sander-Cederlof's excellent AppleSoft II disassembly:
; http://www.txbobsc.com/scsc/scdocumentor/
; * Applesoft lite by Tom Greene http://cowgod.org/replica1/applesoft/ helped a lot, too.
; * Thanks to Joe Zbicak for help with Intellision Keyboard BASIC
.debuginfo +

2
string.s
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@ -263,7 +263,7 @@ L3376:
.endif
iny
lda (INDEX),y
.ifdef CBM1
.ifdef CONFIG_CBM1_PATCHES
jsr LE7F3 ; XXX patch, call into screen editor
.else
.ifdef CONFIG_11