From 9ae11c52355e8a362d34d7cabfbc573ddf8c2f80 Mon Sep 17 00:00:00 2001
From: cheapie <cheapiephp@gmail.com>
Date: Sat, 7 Nov 2026 16:25:42 -0600
Subject: Add Zknh

---
 assembly/zknhtest/Makefile        | 24 ++++++++++++++++++++++++
 assembly/zknhtest/rvcontroller.ld |  1 +
 assembly/zknhtest/zknhtest.S      | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 assembly/zknhtest/Makefile
 create mode 120000 assembly/zknhtest/rvcontroller.ld
 create mode 100644 assembly/zknhtest/zknhtest.S

(limited to 'assembly/zknhtest')

diff --git a/assembly/zknhtest/Makefile b/assembly/zknhtest/Makefile
new file mode 100644
index 0000000..0eb056f
--- /dev/null
+++ b/assembly/zknhtest/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt_zicboz_zknh
+
+.PHONY: all dump load clean
+
+all: zknhtest.hex
+
+zknhtest.o: zknhtest.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o zknhtest.o zknhtest.S
+
+zknhtest.elf:  zknhtest.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o zknhtest.elf zknhtest.o
+
+dump: zknhtest.elf
+	riscv32-none-elf-objdump -d zknhtest.elf
+
+zknhtest.hex: zknhtest.elf
+	riscv32-none-elf-objcopy -O ihex zknhtest.elf zknhtest.hex
+
+load: zknhtest.hex
+	bash -c "wl-copy < zknhtest.hex"
+
+clean:
+	rm -f zknhtest.hex zknhtest.elf zknhtest.o
+
diff --git a/assembly/zknhtest/rvcontroller.ld b/assembly/zknhtest/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/zknhtest/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
diff --git a/assembly/zknhtest/zknhtest.S b/assembly/zknhtest/zknhtest.S
new file mode 100644
index 0000000..98bd647
--- /dev/null
+++ b/assembly/zknhtest/zknhtest.S
@@ -0,0 +1,36 @@
+li a0,0x12345678
+sha256sig0 s0,a0
+sha256sig1 s1,a0
+sha256sum0 s4,a0
+sha256sum1 s5,a0
+
+# Sigma0
+rori s2,a0,7
+rori t0,a0,18
+xor s2,s2,t0
+srli t0,a0,3
+xor s2,s2,t0
+
+# Sigma1
+rori s3,a0,17
+rori t0,a0,19
+xor s3,s3,t0
+srli t0,a0,10
+xor s3,s3,t0
+
+# Sum0
+rori s6,a0,2
+rori t0,a0,13
+xor s6,s6,t0
+rori t0,a0,22
+xor s6,s6,t0
+
+# Sum1
+rori s7,a0,6
+rori t0,a0,11
+xor s7,s7,t0
+rori t0,a0,25
+xor s7,s7,t0
+
+li a7,10
+ecall
-- 
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