diff --git a/doc/riscv-debug-spec-0.11nov12.pdf b/doc/riscv-debug-spec-0.11nov12.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..7daedafc726836beafc9e81aeb5d19ef9074da1d
Binary files /dev/null and b/doc/riscv-debug-spec-0.11nov12.pdf differ
diff --git a/doc/riscv-privileged-v1.10.pdf b/doc/riscv-privileged-v1.10.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..19fc833e28ee0d5888b34b33a8df84e25b226d6c
Binary files /dev/null and b/doc/riscv-privileged-v1.10.pdf differ
diff --git a/doc/riscv-spec-v2.2.pdf b/doc/riscv-spec-v2.2.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..25f573b9d7b152189a81feec770842e419b035a1
Binary files /dev/null and b/doc/riscv-spec-v2.2.pdf differ