xemu/target
Peter Maydell 6000531e19 target/arm: Activate M-profile floating point context when FPCCR.ASPEN is set
The M-profile FPCCR.ASPEN bit indicates that automatic floating-point
context preservation is enabled. Before executing any floating-point
instruction, if FPCCR.ASPEN is set and the CONTROL FPCA/SFPA bits
indicate that there is no active floating point context then we
must create a new context (by initializing FPSCR and setting
FPCA/SFPA to indicate that the context is now active). In the
pseudocode this is handled by ExecuteFPCheck().

Implement this with a new TB flag which tracks whether we
need to create a new FP context.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190416125744.27770-20-peter.maydell@linaro.org
2019-04-29 17:36:01 +01:00
..
alpha tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
arm target/arm: Activate M-profile floating point context when FPCCR.ASPEN is set 2019-04-29 17:36:01 +01:00
cris tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
hppa tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
i386 Add tcg_gen_extract2_*. 2019-04-28 11:43:10 +01:00
lm32 tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
m68k tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
microblaze tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
mips tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
moxie tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
nios2 Add Nios II semihosting support. 2019-04-29 16:09:51 +01:00
openrisc tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
ppc Add tcg_gen_extract2_*. 2019-04-28 11:43:10 +01:00
riscv tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
s390x Add tcg_gen_extract2_*. 2019-04-28 11:43:10 +01:00
sh4 tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
sparc tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
tilegx tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
tricore tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
unicore32 tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00
xtensa tcg: Hoist max_insns computation to tb_gen_code 2019-04-24 13:04:33 -07:00