first version of vasyl support for #17

examples/hello_vasyl.py

@@ -0,0 +1,68 @@
+# if shazzam not installed
+import sys
+sys.path.append(".")
+
+from reloading import reloading
+from shazzam.Segment import SegmentType
+from shazzam.py64gen import *
+from shazzam.py64gen import RegisterX as x, RegisterY as y, RegisterACC as a
+from shazzam.macros.aliases import color, vic
+import shazzam.macros.sys as sys
+from shazzam.macros.vasyl import *
+import shazzam.macros.vlib as vlib
+from shazzam.drivers.assemblers.CC65 import CC65
+
+# define your cross assembler
+assembler = CC65("cc65", "third_party/cc65/bin/cl65")
+program_name = os.path.splitext(os.path.basename(__file__))[0]
+
+@reloading
+def code():
+
+    # define here or anywhere, doesn't matter, your variables
+
+    import examples.vasyl.logo_dlist
+
+    # CC65 generates basic header, no macro needed just to define the CODE segment
+    with segment(0x0801, "start") as s:
+
+        sys.basic_start()
+        label("init")
+
+        jsr(at("knock_knock"))
+
+        lda(at(53265))
+        sta(at("preserve_ctrl1"))
+        lda(at(0xd020))
+        sta(at("preserve_ec"))
+        lda(imm(0))                   # turn off VIC-II display fetches
+        sta(at(53265))                # so that badlines do not interfere
+
+        jsr(at("copy_and_activate_dlist"))
+        label("loop")
+        jsr(at(0xffe4))                # check if key pressed
+        beq(rel_at("loop"))
+
+        lda(imm(0))                   # turn off the display list
+        sta(at(VREG_CONTROL))
+        lda(at("preserve_ctrl1"))
+        sta(at(53265))
+        lda(at("preserve_ec"))
+        sta(at(0xd020))
+        rts()
+
+        vasyl_segment_load = 0x0
+        vasyl_segment_size = get_segment_addresses(assembler.get_vasyl_segment()).end_address
+
+        # include vlib routines
+        vlib.init(vasyl_segment_load, vasyl_segment_size)
+        vlib.copy_and_activate_dlist(vasyl_segment_load, vasyl_segment_size)
+
+    # generate listing
+    gen_code(assembler, gen_listing=True)
+
+    # finally assemble segments to PRG using cross assembler then crunch it!
+    assemble_prg(assembler, start_address=0x0801)
+
+if __name__ == "__main__":
+    generate(code, program_name)