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In case of DSP extension presence in HW some instructions
(related to integer multiply, multiply-accumulate, and divide
operation) executes on this DSP execution unit. So their
execution will depend on dsp configuration register (DSP_CTRL)
As we want these instructions to execute the same way regardless
of DSP presence we need to set DSP_CTRL properly.
NOTE:
we do the same adjustments in Linux kernel, see in kernel tree:
commit 4827d0cf744e ("ARC: handle DSP presence in HW")
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
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| .. | ||
| _millicodethunk.S | ||
| bootm.c | ||
| cache.c | ||
| cpu.c | ||
| init_helpers.c | ||
| interrupts.c | ||
| ints_low.S | ||
| libgcc2.c | ||
| libgcc2.h | ||
| Makefile | ||
| relocate.c | ||
| reset.c | ||
| start.S | ||