diff --git a/assemble.sh b/assemble.sh
index 30e6fd2..e89b5d5 100755
--- a/assemble.sh
+++ b/assemble.sh
@@ -10,7 +10,11 @@ rm -f bin/*.a
 riscv64-unknown-elf-gcc -c -mabi=ilp32 -march=rv32imac asm.S -o bin/$crate.o
 riscv64-unknown-elf-gcc -c -mabi=ilp32 -march=rv32imac asm32.S -o bin/$crate-32.o
 ar crs bin/riscv32imac-unknown-none-elf.a bin/$crate.o bin/$crate-32.o
-cp bin/riscv32imac-unknown-none-elf.a bin/riscv32imc-unknown-none-elf.a
+ar crs bin/riscv32imc-unknown-none-elf.a bin/$crate.o bin/$crate-32.o
+
+riscv64-unknown-elf-gcc -c -mabi=lp64 -march=rv64imac asm.S -o bin/$crate.o
+ar crs bin/riscv64imac-unknown-none-elf.a bin/$crate.o
+ar crs bin/riscv64gc-unknown-none-elf.a bin/$crate.o
 
 rm bin/$crate.o
 rm bin/$crate-32.o
diff --git a/bin/riscv64gc-unknown-none-elf.a b/bin/riscv64gc-unknown-none-elf.a
new file mode 100644
index 0000000..124ca14
Binary files /dev/null and b/bin/riscv64gc-unknown-none-elf.a differ
diff --git a/bin/riscv64imac-unknown-none-elf.a b/bin/riscv64imac-unknown-none-elf.a
new file mode 100644
index 0000000..124ca14
Binary files /dev/null and b/bin/riscv64imac-unknown-none-elf.a differ