phil
30c7e9bdca
as7: truncate labels to 8 characters for moo.s
2019-10-26 00:40:33 -04:00
Phil Budne
cda071864e
shell from 11-56-91.pdf; added ecla to as7
2019-10-18 18:12:42 -04:00
Neo_Chen
ab7641df72
Make perl scripts independ of path
2018-08-20 21:03:24 +08:00
Warren Toomey
59dff5c9f2
I've modified as7 to have local and global labels, which we will need for
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the upcoming pcc compiler.
2017-02-02 19:46:05 +10:00
Warren Toomey
a558131773
I've imported the tool changes I made in my H compiler. Also,
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Anders Magnusson contributed the lrs simulation code for a7out.
2017-01-22 23:51:44 +10:00
Warren Toomey
c1dc742f03
Added support for symbols with uppercase letters.
2016-04-28 13:11:24 +10:00
Phil Budne
dbe494ea8b
as7: make multiply defined symbols non-fatal (as.s doesn't even warn!)
2016-03-29 11:05:52 -04:00
Phil Budne
15a61c0512
fix rim comments
2016-03-25 00:42:08 -04:00
Phil Budne
efb135bc10
as7: "rim" now means "hardware read-in" (contiguous memory with no overhead)
2016-03-25 00:39:50 -04:00
Phil Budne
2b7ff69251
clarify WHICH "Read In Mode" we mean!
2016-03-24 22:16:46 -04:00
Phil Budne
2b4aeb3bab
as7: make I/II/filename output match as.s behavior
2016-03-22 20:07:20 -04:00
Warren Toomey
8b421eb27b
I've commited a change to as7 to use the C pre-processor. Not sure if it's
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to everybody's taste.
2016-03-13 21:08:43 +10:00
Warren Toomey
ffb6676a39
I wrote a very simplistic tool to generate kernel cross references.
2016-03-12 22:37:37 +10:00
Phil Budne
d7d7d592d7
fix "rim" format
2016-03-10 00:11:20 -05:00
Phil Budne
cf164b2746
add comment from v1 as man page
2016-03-07 00:16:53 -05:00
Phil Budne
6fbc8c3a05
ptr: dump memory starting at '..'
2016-03-05 14:32:15 -05:00
Phil Budne
f06f075517
fix subtraction with relative values (relative-relative)=absolute!
2016-03-02 15:40:52 -05:00
Warren Toomey
dc2d2dd63b
Phil's change to as7 to implement RELATIVE flag. He says:
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seems to assemble cat.s and kernel reasonably...
(famous last words)
I've updated a7out to use the same starting location. It runs cat.s OK.
2016-03-02 20:38:00 +10:00
Warren Toomey
d1a6bf8a39
Hah, I worked out how to bring as7 back. Sorry Phil!
2016-03-02 18:41:39 +10:00
Warren Toomey
9fcffe7e43
Merge remote-tracking branch 'origin/master'
2016-03-02 18:00:56 +10:00
Warren Toomey
bcb2cb0f15
local changes.
2016-03-02 17:59:34 +10:00
Phil Budne
97b11c6e40
start with .=4096. This isn't what as.s does (and will break the kernel)
2016-03-01 20:36:13 -05:00
Phil Budne
1bb80f01ec
add --output, --namelist, rim output format, always set 0200 on ptp/rim output
2016-03-01 19:31:01 -05:00
Phil Budne
ff4d793ca5
another round of (hopeful) improvements
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add indirect bit to "sys" definition
set initial ".." (output base) to 4096 (not yet honored)
add "ptr" output format (binary in paper tape reader format: 3 frames of 6 bits)
remove IOT instrictions (system source uses sop.s)
always write labels to "n.out"
add debug output
fix multiply defined error handling (process symbolic labels on both passes)
2016-03-01 11:22:53 -05:00
Phil Budne
66909ac6fd
fix bugs noted by warren
2016-03-01 11:22:29 -05:00
Phil Budne
aeceb8614a
move whitespace removal back in word loop
2016-03-01 01:43:24 -05:00
Phil Budne
249ce47e44
OR syllables by default (allows multiple OPR instructions)
2016-02-29 14:24:37 -05:00
Phil Budne
9e148edefc
changes in expression parsing
2016-02-28 16:29:01 -05:00
Phil Budne
815d8bc220
comment out debug prints
2016-02-25 21:03:39 -05:00
Phil Budne
2cca3d4473
finish s1.s; tried to clean up s5-s8; let as7 continue after error
2016-02-25 20:58:17 -05:00
Warren Toomey
c84b2dffdd
I've changed the assembler so that it groks the <ab> string literal
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syntax. I think it's OK, but it probably needs more testing.
write_test.s was changed to exercise the string parsing.
2016-02-26 07:35:36 +10:00
Warren Toomey
018af6f43e
Ken Thompson sent e-mail in to explain that there can be labels mid-line, such as
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sys write; 1:0; 4
so I modified the assembler logic to support this, and added some code to write_test.s
to verify that it works.
2016-02-26 06:52:43 +10:00
Warren Toomey
f9b8c8eeb2
Changed as7 to allow sys open statements, rewrite write_test.s to
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use this syntax, and fixed up a bug in sys_open in a7out.
2016-02-26 06:19:27 +10:00
Warren Toomey
07c95bbe15
I commented out most of the debug lines, and I now output the octal code
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along with the input line that generated it. There is code to use values
of defined constants as well as defined labels.
2016-02-24 13:25:24 +10:00
Warren Toomey
f46777b272
Added code to output the final machine code in octal. Parse
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the 'i' argument to instructions that indicate indirect mode.
2016-02-24 11:15:47 +10:00
Warren Toomey
d70b4e87cc
First version of as7, which is definitely incomplete. I now need some
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example assembly programs and their machine code octal dumps so that
I can complete as7 and get it working properly.
2016-02-24 09:16:32 +10:00
phil