https://sourceware.org/bugzilla/show_bug.cgi?id=33143
Bug ID: 33143
Summary: CR16 storx abs always choses slow instruction variant
for high addresses
Product: binutils
Version: 2.46 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: Jomosoto at proton dot me
Target Milestone: ---
CR16C has a storx abs20 instruction encoding for addresses 0x0-0xEFFFF and
0xFF0000-0xFFFFFF and a slower storx abs24 one. Gas currently uses the abs24
format also for addresses >= 0xFF0000.
Test case "test.S":
----
storb r0, 0xFF0000
storw r0, 0xFF0000
stord (r1,r0), 0xFF0000
----
Command: "as test.S"
objdump -D output:
---
Disassembly of section .text:
00000000 <.text>:
0: 13 00 0f 7f storb r0,0xff0000:l
4: 00 00
6: 13 00 0f ff storw r0,0xff0000:l
a: 00 00
c: 13 00 0f bf stord (r1,r0),0xff0000:l
10: 00 00
---
Expected objdump -D output:
---
Disassembly of section .text:
00000000 <.text>:
0: 0F c8 00 00 storb r0,0xff0000:m
4: 0F c9 00 00 storw r0,0xff0000:m
8: 0F c7 00 00 stord (r1,r0),0xff0000:m
---
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