while browsing through the code I stumbled upon clock
src/tap/cable/generic.c says:
int
urj_tap_cable_generic_transfer (urj_cable_t *cable, int len, const char *in,
char *out)
{
int i;
if (out)
for (i = 0; i < len; i++)
{
out[i] = cable->driver->get_tdo (cable);
cable->driver->clock (cable, 0, in[i], 1);
}
else
for (i = 0; i < len; i++)
{
cable->driver->clock (cable, 0, in[i], 1);
}
return i;
}
In the else case wouldn't it be better to say instead of the for loop:
cable->driver->clock (cable, 0, in[i], len);
This somehow reduces the overhead.
Also is it guaranteed/defined that the tdi and tms argumetns to clock
are 0 or 1? Or can there also be other values.
If they are guaranteed 0 or 1 we can eliminate the followigng lines
from the gpio.c gpio_clock function
tms = tms ? 1 : 0;
tdi = tdi ? 1 : 0;
Frans.
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