From 904aaf6ab2504e16e3eafe0dad2799b004056e47 Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sun, 5 Jun 2022 13:21:07 -0700
Subject: SMC micro.

---
 PLAN        |  1 -
 mem/smc.pal | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 mem/smc.pal

diff --git a/PLAN b/PLAN
index 730cde1..82b7d31 100644
--- a/PLAN
+++ b/PLAN
@@ -1,4 +1,3 @@
-0. write an SMC micro for the pdp-8
 1. add pdp-8 unified cache that works with SMC
 2. pipelining that works with SMC / start working on minhdl version of the core
 3. write an SPI or I2C master on the FPGA to sample analog inputs
diff --git a/mem/smc.pal b/mem/smc.pal
new file mode 100644
index 0000000..e6d34af
--- /dev/null
+++ b/mem/smc.pal
@@ -0,0 +1,65 @@
+/ vim: set sw=8 noexpandtab :
+
+*200
+
+START,	CLA
+	TAD SMC
+	DCA SAVED
+
+LOOP,	ISZ SMC
+SMC,	JMP VEC
+SAVED,	0
+
+VEC,	0
+	JMP FOO
+	JMP BAR
+	JMP RESET
+
+FOO,	CLA
+	TAD FOOSTR
+	JMS PUTS
+	JMP LOOP
+
+BAR,	CLA
+	TAD BARSTR
+	JMS PUTS
+	JMP LOOP
+
+RESET,	CLA
+	TAD SAVED
+	DCA SMC
+	JMP LOOP
+
+PUTS,	0
+	DCA 10
+PUTSL,	CLA
+	TAD I 10
+	SNA
+	JMP PUTSX
+	JMS PUTC
+	JMP PUTSL
+PUTSX,	JMP I PUTS
+
+PUTC,	0
+	TLS
+	TSF
+	JMP .-1
+	JMP I PUTC
+
+FOOSTR,	.
+	"F
+	"o
+	"o
+	15
+	12
+	0
+
+BARSTR,	.
+	"B
+	"a
+	"r
+	15
+	12
+	0
+
+$
-- 
cgit v1.2.3