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binutils-gdb/cpu
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David Faust 3ad6c19423 bpf: simulator: correct div, mod insn semantics 
The div and mod eBPF instructions are unsigned, but the semantic
specification for the simulator incorrectly used signed operators.
Correct them to unsigned versions, and correct the ALU tests in
the simulator (which incorrectly assumed signed semantics).

Tested in bpf-unknown-none.

cpu/ChangeLog:
2020-09-08  David Faust  <david.faust@oracle.com>

	* bpf.cpu (define-alu-instructions): Correct semantic operators
	for div, mod to unsigned versions.

sim/ChangeLog:
2020-09-08  David Faust  <david.faust@oracle.com>

	* bpf/sem-be.c: Regenerate.
	* bpf/sem-le.c: Likewise.

sim/testsuite/ChangeLog:
2020-09-08  David Faust  <david.faust@oracle.com>

	* sim/bpf/alu.s: Correct div and mod tests.
	* sim/bpf/alu32.s: Likewise.
2020-09-08 11:39:07 -07:00
..
bpf.cpu bpf: simulator: correct div, mod insn semantics 2020-09-08 11:39:07 -07:00
bpf.opc cpu,gas,opcodes: remove no longer needed workaround from the BPF port 2020-06-04 16:17:42 +02:00
ChangeLog bpf: simulator: correct div, mod insn semantics 2020-09-08 11:39:07 -07:00
cris.cpu update copyright dates 2009-09-02 07:25:43 +00:00
epiphany.cpu Remove more shifts for sign/zero extension 2019-12-11 21:14:19 +10:30
epiphany.opc epiphany/disassembler: Improve alignment of output. 2016-02-02 11:09:17 +00:00
fr30.cpu ubsan: fr30: left shift of negative value 2020-01-13 12:12:05 +10:30
fr30.opc Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
frv.cpu ubsan: frv: left shift of negative value 2020-02-01 23:23:18 +10:30
frv.opc opcodes error messages 2018-03-03 11:34:26 +10:30
ip2k.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
ip2k.opc Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
iq10.cpu update copyright dates 2009-09-02 07:25:43 +00:00
iq2000.cpu ubsan: iq2000: left shift of negative value 2019-12-23 18:04:12 +10:30
iq2000.opc update copyright dates 2009-09-02 07:25:43 +00:00
iq2000m.cpu update copyright dates 2009-09-02 07:25:43 +00:00
lm32.cpu Remove more shifts for sign/zero extension 2019-12-11 21:14:19 +10:30
lm32.opc update copyright dates 2009-09-02 07:25:43 +00:00
m32c.cpu ubsan: m32c: left shift of negative value 2020-02-03 15:59:08 +10:30
m32c.opc * m32c.opc (parse_signed16): Fix typo. 2010-01-02 18:37:59 +00:00
m32r.cpu ubsan: m32r: left shift of negative value 2020-01-04 19:20:33 +10:30
m32r.opc * m32r.cpu (HASH-PREFIX): Delete. 2010-02-12 04:38:21 +00:00
mep-avc.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-avc2.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-c5.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-core.cpu mep: ubsan: mep-ibld.c:1635,1645,1652 left shift of negative value 2020-09-01 16:03:08 +09:30
mep-default.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-ext-cop.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-fmax.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-h1.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-ivc2.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-rhcop.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep-sample-ucidsp.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep.cpu Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00
mep.opc opcodes: discriminate endianness and insn-endianness in CGEN ports 2020-06-04 16:17:42 +02:00
mt.cpu update copyright dates 2009-09-02 07:25:43 +00:00
mt.opc cpu/ 2012-02-27 06:57:57 +00:00
or1k.cpu or1k: Remove 64-bit support, it's not used and it breaks 32-bit hosts 2020-05-19 20:40:27 +09:00
or1k.opc cpu/or1k: Add support for orfp64a32 spec 2019-06-13 06:16:18 +09:00
or1kcommon.cpu or1k: Remove 64-bit support, it's not used and it breaks 32-bit hosts 2020-05-19 20:40:27 +09:00
or1korbis.cpu ubsan: or1k: left shift of negative value 2019-12-20 17:57:58 +10:30
or1korfpx.cpu or1k: Remove 64-bit support, it's not used and it breaks 32-bit hosts 2020-05-19 20:40:27 +09:00
sh.cpu update copyright dates 2009-09-02 07:25:43 +00:00
sh.opc update copyright dates 2009-09-02 07:25:43 +00:00
sh64-compact.cpu update copyright dates 2009-09-02 07:25:43 +00:00
sh64-media.cpu update copyright dates 2009-09-02 07:25:43 +00:00
simplify.inc * cpu/simplify.inc (*): One line doc strings don't need \n. 2009-07-16 17:53:25 +00:00
xc16x.cpu * m32r.cpu (HASH-PREFIX): Delete. 2010-02-12 04:38:21 +00:00
xc16x.opc * m32r.cpu (HASH-PREFIX): Delete. 2010-02-12 04:38:21 +00:00
xstormy16.cpu ubsan: xstormy16: left shift of negative value 2019-12-16 17:35:13 +10:30
xstormy16.opc Move cpu files from cgen/cpu to top level cpu directory. 2011-08-22 15:25:07 +00:00