Allow the riscv htif_tohost mmio port to be readable, and ack writes to that port.

1 files changed, 2 insertions, 0 deletions

diff --git a/riscv/riscv_step.sail b/riscv/riscv_step.sail
index 2ac80cc6..af41c098 100644
--- a/riscv/riscv_step.sail
+++ b/riscv/riscv_step.sail
@@ -114,6 +114,8 @@ function loop () = {
     i = i + 1;
     if i == insns_per_tick then {
       tick_clock();
+      /* for now, we drive the platform i/o at every clock tick. */
+      tick_platform();
       i = 0;
     }
   }