Created
June 12, 2017 20:56
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ARM assembler converter, ARM style to Go style
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#!/usr/bin/perl -w | |
use strict; | |
# Rough and ready conversion of arm style assembler to go style | |
# assembler. Note input is expected to be in lower case whereas | |
# output is in upper case. | |
while (<>) { | |
s/ldrb\s+(\w+),\[(\w+),#(\w+)\]/MOVBU\t$3($2),$1/; | |
s/ldr\s+(\w+),\[(\w+),#([^]]+)\]!/MOVW.W\t$3($2),$1/; | |
s/ldr\s+(\w+),\[(\w+),#([^]]+)\]/MOVW\t$3($2),$1/; | |
s/ldr\s+(\w+),\[(\w+),(\w+),lsl#(\w+)\]/MOVW\t$3<<$4($2),$1/; | |
s/ldr\s+(\w+),\[(\w+)\],#([0-9-]+)/MOVW.P\t$3($2),$1/; | |
s/ldr\s+(\w+),\[(\w+)\]/MOVW\t($2),$1/; | |
s/str\s+(\w+),\[(\w+)\],#([0-9-]+)/MOVW.P\t$1,$3($2)/; | |
s/str\s+(\w+),\[(\w+),#([^]]+)\]/MOVW\t$1,$3($2)/; | |
s/str\s+(\w+),\[(\w+)\]/MOVW\t$1,($2)/; | |
s/ldrb\s+(\w+),\[(\w+),(\w+),lsl#(\w+)\]/MOVBU\t$3<<$4($2),$1/; | |
s/ldrb\s+(\w+),\[(\w+),(\w+)\]/MOVBU\t$3<<0($2),$1/; | |
s/ldrb\s+(\w+),\[(\w+)\]/MOVBU\t($2),$1/; | |
s/orr\s+(\w+),(\w+),(\w+),lsl#(\d+)/ORR\t$3<<$4,$2,$1/; | |
s/rev\s+(\w+),(\w+)/REV\t$2,$1/; | |
s/strb\s+(\w+),\[(\w+),#(\w+)\]/MOVBU\t$1,$3($2)/; | |
s/mov\s+(\w+),(\w+),lsr#(\w+)/MOVW\t$2>>$3,$1/; | |
s/mov\s+(\w+),(\w+),lsl#(\w+)/MOVW\t$2<<$3,$1/; | |
s/mov\s+(\w+),#(\w+)/MOVW\t\$$2,$1/; | |
s/mov\s+(\w+),(\w+)/MOVW\t$2,$1/; | |
s/teq\s+(\w+),#(\w+)/TEQ\t\$$2,$1/; | |
s/teq\s+(\w+),(\w+)/TEQ\t$2,$1/; | |
s/mvn\s+(\w+),(#\w+)/MVN\t\$$2,$1/; | |
s/mvn\s+(\w+),(\w+)/MVN\t$2,$1/; | |
s/^\s+(bl|b|bne|beq|bgt)\s+([\w.])/\t\U$1\E\t$2/; | |
s/([a-z]{3,5})\s+(\w+),(\w+),(\w+),lsl#(\d+)/\U$1\E\t$4<<$5,$3,$2/; | |
s/([a-z]{3,5})\s+(\w+),(\w+),(\w+),lsr#(\d+)/\U$1\E\t$4>>$5,$3,$2/; | |
s/([a-z]{3,5})\s+(\w+),(\w+),(\w+),ror#(\d+)/\U$1\E\t$4@>$5,$3,$2/; | |
s/([a-z]{3,5})\s+(\w+),(\w+),(\w+)/\U$1\E\t$4,$3,$2/; | |
s/([a-z]{3,5})\s+(\w+),(\w+),#(\w+)/\U$1\E\t\$$4,$3,$2/; | |
s/^\s+SUBS\s+/\tSUB.S\t/; | |
s/^\s+SUBEQ\s+/\tSUB.EQ\t/; | |
print $_; | |
} |
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