Hi All,
This patchset adds support to emulate divde, divde., divdeu and divdeu.
instructions and testcases for it.
I would request for your review and suggestions for making it better.
Boot Log:
--------
:: ::
:: ::
[ 2.732268] emulate_step_test: divde : RA = LONG_MIN, RB = LONG_MIN
PASS
[ 2.732628] emulate_step_test: divde : RA = 1L, RB = 0
PASS
[ 2.732991] emulate_step_test: divde : RA = LONG_MIN, RB = LONG_MAX
PASS
[ 2.733436] emulate_step_test: divde. : RA = LONG_MIN, RB = LONG_MIN
PASS
[ 2.733813] emulate_step_test: divde. : RA = 1L, RB = 0
PASS
[ 2.734537] emulate_step_test: divde. : RA = LONG_MIN, RB = LONG_MAX
PASS
[ 2.735555] emulate_step_test: divdeu : RA = LONG_MIN, RB = LONG_MIN
PASS
[ 2.736348] emulate_step_test: divdeu : RA = 1L, RB = 0
PASS
[ 2.736986] emulate_step_test: divdeu : RA = LONG_MIN, RB = LONG_MAX
PASS
[ 2.737417] emulate_step_test: divdeu : RA = LONG_MAX - 1, RB =
LONG_MAX PASS
[ 2.737778] emulate_step_test: divdeu : RA = LONG_MIN + 1, RB =
LONG_MIN PASS
[ 2.738155] emulate_step_test: divdeu. : RA = LONG_MIN, RB = LONG_MIN
PASS
[ 2.738530] emulate_step_test: divdeu. : RA = 1L, RB = 0
PASS
[ 2.738900] emulate_step_test: divdeu. : RA = LONG_MIN, RB = LONG_MAX
PASS
[ 2.739254] emulate_step_test: divdeu. : RA = LONG_MAX - 1, RB =
LONG_MAX PASS
[ 2.740228] emulate_step_test: divdeu. : RA = LONG_MIN + 1, RB =
LONG_MIN PASS
[ 2.751784] registered taskstats version 1
[ 2.757052] printk: console [netcon0] enabled
[ 2.757191] netconsole: network logging started
[ 2.757466] hctosys: unable to open rtc device (rtc0)
[ 2.921837] Freeing unused kernel memory: 4864K
[ 2.922021] This architecture does not have kernel memory protection.
[ 2.922203] Run /init as init process
[ 3.183894] mount (54) used greatest stack depth: 12224 bytes left
Welcome to Buildroot
buildroot login:
Balamuruhan S (3):
powerpc ppc-opcode: add divde, divde_dot, divdeu and divdeu_dot
opcodes
powerpc sstep: add support for divde[.] and divdeu[.] instructions
powerpc test_emulate_step: add testcases for divde[.] and divdeu[.]
instructions
arch/powerpc/include/asm/ppc-opcode.h | 16 ++++
arch/powerpc/lib/sstep.c | 27 +++++-
arch/powerpc/lib/test_emulate_step.c | 164 ++++++++++++++++++++++++++++++++++
3 files changed, 206 insertions(+), 1 deletion(-)
base-commit: 42159d2de18ffa66c2714d988a8c162db8b03956
--
2.14.5
