Add the ability for a CPU definition to reference arbitrary C includes and use it to add a placeholder definition of svp_read_16

3 files changed, 9 insertions, 0 deletions

diff --git a/cpu_dsl.py b/cpu_dsl.py
index 6c9d80d..33ae62c 100755
--- a/cpu_dsl.py
+++ b/cpu_dsl.py
@@ -893,6 +893,7 @@ class Program:
 		self.extra_tables = info.get('extra_tables', [])
 		self.context_type = self.prefix + 'context'
 		self.body = info.get('body', [None])[0]
+		self.includes = info.get('include', [])
 		self.flags = flags
 		self.lastDst = None
 		self.scopes = []
@@ -930,6 +931,8 @@ class Program:
 	def build(self, otype):
 		body = []
 		pieces = []
+		for include in self.includes:
+			body.append('#include "{0}"\n'.format(include))
 		for table in self.instructions:
 			opmap = [None] * (1 << self.opsize)
 			bodymap = {}
diff --git a/svp.cpu b/svp.cpu
index d6c7fb7..cb12210 100644
--- a/svp.cpu
+++ b/svp.cpu
@@ -3,6 +3,7 @@ info
 	opcode_size 16
 	body svp_run_op
 	header svp.h
+	include svp_util.c
 	
 regs
 	internal 16 scratch1 x y scratch2 st pad pc
diff --git a/svp_util.c b/svp_util.c
new file mode 100644
index 0000000..362646f
--- /dev/null
+++ b/svp_util.c
@@ -0,0 +1,5 @@
+
+void svp_read_16(svp_context *context)
+{
+	context->internal[0] = 0;
+}