diff --git a/README.md b/README.md
index e31328634..a10da3434 100644
--- a/README.md
+++ b/README.md
@@ -8,16 +8,13 @@
 For detailed documentation refer to the [online documentation](http://www.be4web.net/ariane/) (Login: `zarubaf` Password: `zaruba`).
 
 ## Getting Started
+Go and get the [RISC-V tools](https://github.com/riscv/riscv-tools).
 
 Checkout the repository and initialize all submodules
 ```
 git checkout git@iis-git.ee.ethz.ch:floce/ariane.git
 git submodule update --init --recursive
 ```
-Build the RISC-V front-end server (fesvr) which contains utility functions to read and load ELF files.
-```
-make build-fesvr
-```
 
 Build Ariane by using the Makefile:
 ```
@@ -28,6 +25,11 @@ Start the simulation using Modelsim:
 ```
 make sim
 ```
+To specify the test to run use (e.g.: you want to run `rv64ui-p-sraw` inside the riscv-tests isa folder:
+```
+make sim riscv-test=rv64ui-p-sraw
+```
+If you call `simc` instead of `sim` it will run without the GUI.
 
 Or start any of the unit tests by:
 ```
diff --git a/src/pcgen.sv b/src/pcgen.sv
index 7e6dc5e9c..de2fbdf1b 100644
--- a/src/pcgen.sv
+++ b/src/pcgen.sv
@@ -49,7 +49,7 @@ module pcgen (
     assign fetch_address_o = npc_q;
 
     btb #(
-        .NR_ENTRIES(4096),
+        .NR_ENTRIES(64),
         .BITS_SATURATION_COUNTER(2)
     )
     btb_i
@@ -147,4 +147,4 @@ module pcgen (
         end
     end
 
-endmodule
\ No newline at end of file
+endmodule