From 15d38061302f61304e276f0045d8e4b3f1548e33 Mon Sep 17 00:00:00 2001
From: cheapie <cheapiephp@gmail.com>
Date: Sat, 7 Nov 2026 08:38:37 -0600
Subject: Add Zkr

---
 assembly/zkrtest/Makefile        | 24 ++++++++++++++++++++++++
 assembly/zkrtest/rvcontroller.ld |  1 +
 assembly/zkrtest/zkrtest.S       | 11 +++++++++++
 3 files changed, 36 insertions(+)
 create mode 100644 assembly/zkrtest/Makefile
 create mode 120000 assembly/zkrtest/rvcontroller.ld
 create mode 100644 assembly/zkrtest/zkrtest.S

(limited to 'assembly')

diff --git a/assembly/zkrtest/Makefile b/assembly/zkrtest/Makefile
new file mode 100644
index 0000000..7cb4731
--- /dev/null
+++ b/assembly/zkrtest/Makefile
@@ -0,0 +1,24 @@
+MARCH ?= rv32imacbzicntr_zicond_zicsr_zifencei_zihintpause_zilsd_zclsd_zabha_zacas_zbkb_zbkx_zcb_zcmp_zcmt_zicboz_zkr
+
+.PHONY: all dump load clean
+
+all: zkrtest.hex
+
+zkrtest.o: zkrtest.S
+	riscv32-none-elf-as -I../rvcontroller-libraries -march=${MARCH} -o zkrtest.o zkrtest.S
+
+zkrtest.elf:  zkrtest.o
+	riscv32-none-elf-ld -T rvcontroller.ld --no-warn-rwx-segments -o zkrtest.elf zkrtest.o
+
+dump: zkrtest.elf
+	riscv32-none-elf-objdump -d zkrtest.elf
+
+zkrtest.hex: zkrtest.elf
+	riscv32-none-elf-objcopy -O ihex zkrtest.elf zkrtest.hex
+
+load: zkrtest.hex
+	bash -c "wl-copy < zkrtest.hex"
+
+clean:
+	rm -f zkrtest.hex zkrtest.elf zkrtest.o
+
diff --git a/assembly/zkrtest/rvcontroller.ld b/assembly/zkrtest/rvcontroller.ld
new file mode 120000
index 0000000..bc01402
--- /dev/null
+++ b/assembly/zkrtest/rvcontroller.ld
@@ -0,0 +1 @@
+../../rvcontroller.ld
\ No newline at end of file
diff --git a/assembly/zkrtest/zkrtest.S b/assembly/zkrtest/zkrtest.S
new file mode 100644
index 0000000..6fe98d5
--- /dev/null
+++ b/assembly/zkrtest/zkrtest.S
@@ -0,0 +1,11 @@
+csrrw s0,seed,x0
+csrrw s1,seed,x0
+pause
+csrrw s2,seed,x0
+csrrw s3,seed,x0
+pause
+
+csrrsi s4,seed,0 # This should crash
+
+li a7,10
+ecall
-- 
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