X-Git-Url: https://git.danieliu.xyz/?p=dotfiles.git;a=blobdiff_plain;f=Scripts%2Fcormackscript;h=9f7cc728e616c85f7b3aed948e5c413483e8d139;hp=ed12e5770029b6b55067da3353302d3de25bb9e4;hb=bb16cdd8187a06a71fb5b3b3afe8c3c9ad3b81a3;hpb=1e538d57480c7eba19393a8b365f662bf0a6dfb5

diff --git a/Scripts/cormackscript b/Scripts/cormackscript
index ed12e57..9f7cc72 100755
--- a/Scripts/cormackscript
+++ b/Scripts/cormackscript
@@ -1,65 +1,82 @@
 #!/bin/sh
 
-# CORMACKSCRIPT General Syntax
-#
-# IMPORTANT!
-# Make sure you change the 'scriptfile' and 'targetfile' variables as you see fit.
-# In addition, place  
-#
-# For extra niceness, if you have the racket program installed it will auto execute it.
+# CORMACKSCRIPT 
+# written by daniel
 #
+# Usage: cormackscript [cmks file] [output file]
 #
-# Example:
-#
-# A CormackScript file contains 3 columns separated by whitespace in the format
-# opcode target source
-#
+# IMPORTANT!
+# Place the comments (important to get spaces right too):
+# ; CMKS START
+# ; CMKS END
+# into your racket program, the 'assembled' code will be injected here.
 #
+# For extra niceness, if you have the racket program installed it will auto execute it your file.
 #
-# You can comment with ;
+# A CormackScript file contains 3 columns separated by whitespace in the format [opcode|target|source]  
+# - The inc, print and read instructions read from the first column
+# - The quit instruction can be standalone
+# - you can comment with ;
+# - extraneous whitespace is ignored
 #
+# Here's some sample code
+# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=
+# ; setting up memory
+# 6     ; [0]: first instruction
+# 1     ; [1]: literal 1
+# 2     ; [2]: literal 2
+# 7     ; [3]: literal 7
+# 0     ; [4]: n
+# 0     ; [5]: acc
 #
-# Sample code
-# 
+# ; actual instructions 
+# read 4 ; input n
+# addeq 00 4 ; skip next if n = 0
+# add 00 2 ; skip next 2 instructions
+# print 5 ; out acc
+# quit
+# add 05 04 ; acc = acc + n
+# sub 04 01 ; n = n - 1
+# sub 00 03 ; go back 7 (from next instr)
+# =-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 #
-
-scriptfile="A12d.cmks" # cormackscript file
-targetfile="A12d.rkt" # destination file
-
 # You can redefine these to whatever you want
 
 inst0="inc"   # [tt] = [tt] + 1
 inst1="add"   # [tt] = [tt] + [ss]
 inst2="sub"   # [tt] = max([tt] - [ss], 0)
 inst3="mov"   # [tt] = [ss]
-inst4=""      # [tt] = [tt] + 1, if [ss] = 0
-inst5=""      # [tt] = [[ss]]
-inst6=""      # [[tt]] = [ss]
+inst4="addeq" # [tt] = [tt] + 1, if [ss] = 0
+inst5="fetch" # [tt] = [[ss]]
+inst6="store" # [[tt]] = [ss]
 inst7="print" # display [ss]
 inst8="read"  # read [tt]
 inst9="quit"  # halt
 
 # Config ends here =-=-=-=-=-=-=-=-=
 
-sub() {
-    cat "$scriptfile" |\
-        sed 's/\s*;.*//g; /^\s*$/ d;' |\
-        sed "s/$inst0/0/"
-
-        # finally removes any non alphanumerics in case sm breaks
-}
+[ "$#" -ne 2 ] && { echo "Usage: cormackscript [cmks file] [output file]" && exit 1; }
+scriptfile="$1"; targetfile="$2"
+[ -f "$scriptfile" ] && [ -f "$targetfile" ] || { echo "Either $scriptfile or $targetfile do not exist" && exit 1; }
 
-inject() {
-    tmp="$(mktemp 'tempXXX')"
-    sub >> "$tmp"
-    sed -i "/\; CMKS START/,/\; CMKS END/{/\; CMKS START/!{/\; CMKS END/!d}}; /\; CMKS START/r $tmp" "$targetfile"
-    rm "$tmp"
-}    
-
-
-[ -f "$scriptfile" ] && [ -f "$targetfile" ] || { echo "You are missing a file, please check that the current directory contains $scriptfile and $targetfile" && exit 1; }
+tmp="$(mktemp 'tempXXX')"
+cat "$scriptfile" |\
+    sed -r "s/\s*;.*//g; /^\s*$/ d; s/\s+/ /g; s/^\s+//" |\
+        awk "
+                /^$inst0\s/ {printf \"0%02d00 ; [%02d] = [%02d] + 1\n\",\$2,\$2,\$2}
+                /^$inst1\s/ {printf \"1%02d%02d ; [%02d] = [%02d] + [%02d]\n\",\$2,\$3,\$2,\$2,\$3}
+                /^$inst2\s/ {printf \"2%02d%02d ; [%02d] = max([%02d] - [%02d], 0)\n\",\$2,\$3,\$2,\$2,\$3}
+                /^$inst3\s/ {printf \"3%02d%02d ; [%02d] = [%02d]\n\",\$2,\$3,\$2,\$3}
+                /^$inst4\s/ {printf \"4%02d%02d ; [%02d] = [%02d] + 1, if [%02d] = 0\n\",\$2,\$3,\$2,\$2,\$3}
+                /^$inst5\s/ {printf \"5%02d%02d ; [%02d] = [[%02d]]\n\",\$2,\$3,\$2,\$3}
+                /^$inst6\s/ {printf \"6%02d%02d ; [[%02d]] = [%02d]\n\",\$2,\$3,\$2,\$3}
+                /^$inst7\s/ {printf \"700%02d ; display [%02d]\n\",\$2,\$2}
+                /^$inst8\s/ {printf \"8%02d00 ; read [%02d]\n\",\$2,\$2}
+                /^$inst9/ {print \"90000 ; halt\"}
+                !/^$inst0\s|^$inst1\s|^$inst2\s|^$inst3\s|^$inst4\s|^$inst5\s|^$inst6\s|^$inst7\s|^$inst8\s|^$inst9/
+            " >> "$tmp"
+sed -i "/\; CMKS START/,/\; CMKS END/{/\; CMKS START/!{/\; CMKS END/!d}}; /\; CMKS START/r $tmp" "$targetfile"
+rm "$tmp"
 
 # If racket is installed run it directly
-# [ ! -z "$(command -v racket)" ] && racket "$targetfile"
-
-inject
+[ ! -z "$(command -v racket)" ] && racket "$targetfile" && echo ""