From b6ecc5f2f1c6aa350b2fdb4d73b6bd410bdab951 Mon Sep 17 00:00:00 2001
From: cheapie <cheapiephp@gmail.com>
Date: Sat, 7 Nov 2026 05:45:09 -0600
Subject: Add Zbc (and by extension, Zbkc)

---
 assembly/clmultest/Makefile        | 24 ++++++++++++++++++++++++
 assembly/clmultest/clmultest.S     | 14 ++++++++++++++
 assembly/clmultest/rvcontroller.ld |  1 +
 3 files changed, 39 insertions(+)
 create mode 100644 assembly/clmultest/Makefile
 create mode 100644 assembly/clmultest/clmultest.S
 create mode 120000 assembly/clmultest/rvcontroller.ld

(limited to 'assembly/clmultest')

diff --git a/assembly/clmultest/Makefile b/assembly/clmultest/Makefile
new file mode 100644
index 0000000..c4e7727
--- /dev/null
+++ b/assembly/clmultest/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt_zicboz_zbc
+
+.PHONY: all dump load clean
+
+all: clmultest.hex
+
+clmultest.o: clmultest.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o clmultest.o clmultest.S
+
+clmultest.elf:  clmultest.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o clmultest.elf clmultest.o
+
+dump: clmultest.elf
+	riscv32-none-elf-objdump -d clmultest.elf
+
+clmultest.hex: clmultest.elf
+	riscv32-none-elf-objcopy -O ihex clmultest.elf clmultest.hex
+
+load: clmultest.hex
+	bash -c "wl-copy < clmultest.hex"
+
+clean:
+	rm -f clmultest.hex clmultest.elf clmultest.o
+
diff --git a/assembly/clmultest/clmultest.S b/assembly/clmultest/clmultest.S
new file mode 100644
index 0000000..397603f
--- /dev/null
+++ b/assembly/clmultest/clmultest.S
@@ -0,0 +1,14 @@
+li t0,0xaaaaaaab
+li t1,0x0002fe7d
+clmul s0,t0,t1
+clmulh s1,t0,t1
+clmulr s2,t0,t1
+
+li t0,0x7e00
+li t1,0xb6db6db7
+clmul s3,t0,t1
+clmulh s4,t0,t1
+clmulr s5,t0,t1
+
+li a7,10
+ecall
diff --git a/assembly/clmultest/rvcontroller.ld b/assembly/clmultest/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/clmultest/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
-- 
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