mirror of https://github.com/mist64/msbasic.git
add some text to msbasic.s
This commit is contained in:
Michael Steil
parent
d2cfe9ffc7
commit
2b91b483df
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@ -1,9 +0,0 @@
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Name Release MS Version ROM 9digit INPUTBUFFER extensions comment
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Commodore BASIC 1 1977 Y Y ZP CBM
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OSI BASIC 1977 1.0 REV 3.2 Y N ZP - CONFIG_10A
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AppleSoft I 1977 1.1 N Y $0200 Apple CONFIG_11
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KIM BASIC 1977 1.1 N Y ZP - CONFIG_11A
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AppleSoft II 1978 Y Y $0200 Apple CONFIG_2
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Commodore BASIC 2 1979 Y Y $0200 CBM CONFIG_2A
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KBD BASIC 1980 Y N $0700 KBD CONFIG_2B
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MicroTAN 1979 Y Y ZP - CONFIG_2C
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7
TODO.txt
7
TODO.txt
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@ -5,11 +5,6 @@
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* add AppleSoft comments
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* look for all " $", i.e. (zeropage) constants, replace them
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with symbols
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* check all .ifdef OSI; they might be .ifdef CONFIG_SMALL
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* check for KBD whether it's CONFIG_2 && CONFIG_SMALL (float
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etc.)
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* there must be no platform ifdefs in generic files
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* convert platform ifdefs in generic files into feature ifdefs or macros
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* reconstruct pre-CBM1, i.e. CBM1 without the patches
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* add some comments to every file
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* clean up all CONFIG_*, maybe some should go away
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* look for all || and && and convert them into CONFIG_*
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@ -1,26 +1,3 @@
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;CONFIG_CBM1_PATCHES := 1 ; ** don't turn off! **
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;CONFIG_CBM_ALL := 1
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;CONFIG_DATAFLG := 1
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;CONFIG_EASTER_EGG := 1
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;CONFIG_FILE := 1; support PRINT#, INPUT#, GET#, CMD
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;CONFIG_IO_MSB := 1 ; all I/O has bit #7 set
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;CONFIG_MONCOUT_DESTROYS_Y := 1
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;CONFIG_NO_CR := 1; terminal doesn't need explicit CRs on line ends
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;CONFIG_NO_LINE_EDITING := 1; support for "@", "_", BEL etc.
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;CONFIG_NO_POKE := 1
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;CONFIG_NO_READ_Y_IS_ZERO_HACK := 1
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;CONFIG_NULL := 1
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;CONFIG_PEEK_SAVE_LINNUM := 1
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;CONFIG_PRINTNULLS := 1; whether PRINTNULLS does anything
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;CONFIG_PRINT_CR := 1 ; print CR when line end reached
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;CONFIG_RAM := 1
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;CONFIG_ROR_WORKAROUND := 1; doesn't work with CONFIG_SMALL!
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;CONFIG_SAFE_NAMENOTFOUND := 1
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;CONFIG_SCRTCH_ORDER := 1
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;CONFIG_SCRTCH_ORDER := 2
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;CONFIG_SCRTCH_ORDER := 3
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;CONFIG_SMALL := 1
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; configuration
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; oldest known version, no CONFIG_n
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2
init.s
2
init.s
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@ -379,7 +379,7 @@ QT_WRITTEN_BY:
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asc80 "COPYRIGHT 1977 BY MICROSOFT CO"
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.byte CR,0
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.else
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.byte CR,LF,$0C
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.byte CR,LF,$0C ; FORM FEED
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.ifndef CONFIG_11
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.byte "WRITTEN BY RICHARD W. WEILAND."
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.else
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50
msbasic.s
50
msbasic.s
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@ -1,4 +1,54 @@
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; Microsoft BASIC for 6502
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;
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; This is a single integrated assembly source tree that can generate any of seven different
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; versions of Microsoft BASIC for 6502.
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;
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; By running ./make.sh, this will generate all versions and compare them to the original
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; files byte by byte.
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;
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; The CC65 compiler suite is need to build this project.
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;
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; These are the first eight (knows) versions of Microsoft BASIC for 6502:
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;
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; Name Release MS Version ROM 9digit INPUTBUFFER extensions comment
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;---------------------------------------------------------------------------------------------------
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; Commodore BASIC 1 1977 Y Y ZP CBM
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; OSI BASIC 1977 1.0 REV 3.2 Y N ZP - CONFIG_10A
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; AppleSoft I 1977 1.1 N Y $0200 Apple CONFIG_11
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; KIM BASIC 1977 1.1 N Y ZP - CONFIG_11A
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; AppleSoft II 1978 Y Y $0200 Apple CONFIG_2
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; Commodore BASIC 2 1979 Y Y $0200 CBM CONFIG_2A
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; KBD BASIC 1980 Y N $0700 KBD CONFIG_2B
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; MicroTAN 1980 Y Y ZP - CONFIG_2C
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;
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; (Note that this assembly source cannot (yet) build AppleSoft II.)
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;
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; This lists the versions in the order in which they were forked from the Microsoft source base.
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; Commodore BASIC 1, as used on the original PET is the oldest known version of Microsoft BASIC
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; for 6502. It contains some additions to Microsoft's version, like Commodore-style file I/O.
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;
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; The CONFIG_n defines specify what Microsoft-version the OEM version is based on.
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; CONFIG_CBM1_PATCHES jump out into CBM1's binary patches instead of doing the right thing inline
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; CONFIG_CBM_ALL add all Commodore-specific additions except file I/O
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; CONFIG_DATAFLG ?
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; CONFIG_EASTER_EGG include the CBM2 "MICROSOFT!" easter egg
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; CONFIG_FILE support Commodore PRINT#, INPUT#, GET#, CMD
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; CONFIG_IO_MSB all I/O has bit #7 set
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; CONFIG_MONCOUT_DESTROYS_Y Y needs to be preserved when calling MONCOUT
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; CONFIG_NO_CR terminal doesn't need explicit CRs on line ends
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; CONFIG_NO_LINE_EDITING disable support for Microsoft-style "@", "_", BEL etc.
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; CONFIG_NO_POKE don't support PEEK, POKE and WAIT
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; CONFIG_NO_READ_Y_IS_ZERO_HACK don't do a ver volatile trick that saves one byte
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; CONFIG_NULL support for the NULL statement
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; CONFIG_PEEK_SAVE_LINNUM preserve LINNUM on a PEEK
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; CONFIG_PRINTNULLS whether PRINTNULLS does anything
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; CONFIG_PRINT_CR print CR when line end reached
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; CONFIG_RAM optimizations for RAM version of BASIC, only use on 1.x
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; CONFIG_ROR_WORKAROUND use workaround for buggy 6502s from 1975/1976; doesn't work with CONFIG_SMALL!
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; CONFIG_SAFE_NAMENOTFOUND check both bytes of the caller's address in NAMENOTFOUND
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; CONFIG_SCRTCH_ORDER where in the init code to call SCRTCH
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; CONFIG_SMALL use 6 digit FP instead of 9 digit, use 2 character error messages, don't have GET
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.debuginfo +
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