uxndebug

commit e4745e4f94d2a1f0fd2c273d87a834d3348cd2c8
parent 45381de834ddc6df6cd3dd7435561222b01d75d0
Author: phoebos <ben@bvnf.space>
Date:   Mon,  6 Jun 2022 10:38:25 +0100

uxnsolve: check that address isn't too small

negative addresses would be interpreted by sed as a flag.

Diffstat:
M
uxnsolve
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/uxnsolve b/uxnsolve
@@ -32,6 +32,11 @@ dec_address="$(printf "16iAo%s 100-p\n" "$address" | dc || kill 0)"
 # add 1 because the zeroth byte is on the first line
 dec_address="$((dec_address + 1))"
 
+[ "$dec_address" -lt 0 ] && {
+    printf "address %s is in zero page, don't subtract 0x0100\n" "$address"
+    exit 1
+}
+
 is_integer() {
     printf %d "$1" >/dev/null 2>&1
 }