<GitHub160>
misoc/master aac34f0 Sebastien Bourdeauducq: gensoc: support user-defined CSR regions
<GitHub34>
[artiq] sbourdeauducq pushed 1 new commit to master: http://git.io/PsmNNQ
<GitHub34>
artiq/master 7166ca8 Sebastien Bourdeauducq: targets/ARTIQMiniSoC: map RTIO CSRs directly on Wishbone (reduces programming time by 30%)
<sb0>
it's interesting that or1k-gcc generates slightly faster code for "if(!rtio_o_writable_read()) {while(!rtio_o_writable_read()); }" than for "while(!rtio_o_writable_read());" alone
<sb0>
also, for some reason "while(!rtio_o_writable_read());" takes 50 CPU cycles when the loop is not entered
<sb0>
rtio_o_writable_read() just reads a 32-bit word from a static addr