From 548187dfc392d0beef4cc86e7d3d22d885276e5d Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Mon, 2 Oct 2023 22:54:55 -0600
Subject: tb/sim: add test: smp_boot

---
 tb/sim/smp_boot.S  | 25 +++++++++++++++++++++++++
 tb/sim/smp_boot.py |  4 ++++
 2 files changed, 29 insertions(+)
 create mode 100644 tb/sim/smp_boot.S
 create mode 100644 tb/sim/smp_boot.py

(limited to 'tb')

diff --git a/tb/sim/smp_boot.S b/tb/sim/smp_boot.S
new file mode 100644
index 0000000..669508b
--- /dev/null
+++ b/tb/sim/smp_boot.S
@@ -0,0 +1,25 @@
+.global reset
+
+reset:
+	adr   r0, cpus
+
+.inc_cpus:
+	ldrex r1, [r0]
+	add   r1, r1, #1
+	strex r2, r1, [r0]
+	teq   r2, #0
+	bne   .inc_cpus
+
+	cmp   r1, #1
+	movne pc, lr
+
+	ldr   r1, =0x30140000
+	ldr   r2, [r1]
+	ldr   r3, =0x01010100
+	str   r3, [r1]
+	ldr   r3, [r1]
+.wait:
+	ldr   r1, [r0]
+	b     .wait
+
+cpus: .word 0
diff --git a/tb/sim/smp_boot.py b/tb/sim/smp_boot.py
new file mode 100644
index 0000000..40c3012
--- /dev/null
+++ b/tb/sim/smp_boot.py
@@ -0,0 +1,4 @@
+def final():
+    assert_reg(r1, 4)
+    assert_reg(r2, 0x01010100)
+    assert_reg(r3, 0)
-- 
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