Add support for HTIF interfaces #57
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I only saw fromhost getting initialize to 0, or reset. But what set this value? |
nategraff-sifive
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This just supports HTIF console (always via the write syscall) and shutdown (without an exit code). With this I can run code on Spike. Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Return the exit code to spike.
- formatting - require METAL_UCB_HTIF0 to be defined by metal/machine/platform.h - name the file with an understore instead of a comma - change getc and putc to accept ints instead of chars Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>
Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>
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This just supports HTIF console (always via the write syscall) and
shutdown (without an exit code). With this I can run code on Spike.
Signed-off-by: Palmer Dabbelt palmer@sifive.com