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Commit Graph

9 Commits

Author SHA1 Message Date
Olaf Seibert
21e9410571 Add evaluation of %+unary expressions. 
This is a first step towards expressions like <%1>+1 and even later R1+1.
 2021-11-15 18:31:15 +01:00
Olaf Seibert
2aa43f17f7 Make some expression tree operations more generic. 2021-11-15 18:26:10 +01:00
Olaf Seibert
7ba6ed13e6 Move some work into expression parse tree constructors 2021-06-12 20:32:49 +02:00
Olaf Seibert
7bbcbba5f5 Include undefined symbols in the symbol table for listing purposes. 
MACRO11 V05.05 does this:

```
.MAIN.  MACRO V05.05  Sunday 18-APR-2021 16:29  Page 1

      1
      2 000000  012700  000000G                 mov #lab1,r0
      3
      4                                         .dsabl gbl
      5
U     6 000004  012700  000000                  mov #lab2,r0
      7
      8         000001                          .end

.MAIN.  MACRO V05.05  Sunday 18-APR-2021 16:29  Page 1-1
Symbol table

LAB1  = ****** GX       LAB2  = ******

. ABS.  000000    000   (RW,I,GBL,ABS,OVR)
        000010    001   (RW,I,LCL,REL,CON)
Errors detected:  1

*** Assembler statistics

Work  file  reads: 0
Work  file writes: 0
Size of work file: 34 Words  ( 1 Pages)
Size of core pool: 9260 Words  ( 35 Pages)
Operating  system: RSX-11M/M-PLUS

Elapsed time: 00:00:00.01
GBL,GBL/-SP=GBL
```
 2021-05-30 13:19:39 +02:00
Olaf Seibert
461205d60a Make a nice flag name for evaluate(). 2021-04-21 18:34:11 +02:00
Olaf Seibert
93d7839ccf Expand some tabs that crept in over time. 2021-02-14 22:00:30 +01:00
Stephen Casner
dcdbc02b2e Add binary operator '_' for left shift 
If the command line option yus to allow the underscore character in
symbols is NOT selected, then interpret underscore as a new binary
operator meaning to do a left shift of the left side value by the
number of bit positions indicated by the right side value.  As for the
arithmetic operators, both values must be literal (numeric constants
or symbols equated to a numeric constant).
 2021-02-14 14:33:42 +01:00
Olaf Seibert
d6ff111149 Introduce a function to create a binary expression node. 2015-11-08 20:51:07 +01:00
Sergey Svishchev
6a2afc3fa7 Import J Hoppe's 20090427 release from http://retrocmp.com/tools/macro-11-on-windows 2013-02-15 23:50:38 +04:00