Apple-2-SW/asmgen
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Quick hack to generate C code for HGR row offsets

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Rob McMullen 2019-07-13 17:28:26 -07:00
parent 35a33f86e1
commit 64b183ea33
1 changed files with 26 additions and 2 deletions
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28
asmgen.py
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@ -58,6 +58,7 @@ def slugify(s):
class AssemblerSyntax(object):
extension = "s"
comment_char = ";"
use_16_bit = False
def asm(self, text):
return "\t%s" % text
@ -112,6 +113,14 @@ class CC65(AssemblerSyntax):
return "%s:" % text
class CSource(AssemblerSyntax):
extension = "c"
use_16_bit = True
def label(self, text):
return f"{text} = "
class Listing(object):
def __init__(self, assembler, slug="asmgen-driver"):
self.assembler = assembler
@ -684,7 +693,20 @@ class RowLookup(Listing):
def __init__(self, assembler, screen):
Listing.__init__(self, assembler)
self.slug = "hgrrows"
self.generate_y(screen)
if assembler.use_16_bit:
self.generate_raw(screen)
else:
self.generate_y(screen)
def generate_raw(self, screen):
self.label("lines_page1")
for addr in screen.generate_row_addresses(0x2000):
self.word("0x%04x" % addr, 8)
self.out("\n")
self.label("lines_page2")
for addr in screen.generate_row_addresses(0x4000):
self.word("0x%04x" % addr, 8)
def generate_y(self, screen):
self.label("HGRROWS_H1")
@ -1513,7 +1535,7 @@ if __name__ == "__main__":
parser.add_argument("-x", "--xdraw", action="store_true", default=False, help="use XOR for sprite drawing")
parser.add_argument("-m", "--mask", action="store_true", default=False, help="use mask for sprite drawing")
parser.add_argument("-b", "--backing-store", action="store_true", default=False, help="add code to store background")
parser.add_argument("-a", "--assembler", default="cc65", choices=["cc65","mac65"], help="Assembler syntax (default: %(default)s)")
parser.add_argument("-a", "--assembler", default="cc65", choices=["cc65","mac65", "c"], help="Assembler syntax (default: %(default)s)")
parser.add_argument("-p", "--processor", default="any", choices=["any","6502", "65C02"], help="Processor type (default: %(default)s)")
parser.add_argument("-s", "--screen", default="hgrcolor", choices=["hgrcolor","hgrbw"], help="Screen format (default: %(default)s)")
parser.add_argument("-i", "--image", default="line", choices=["line", "color","bw"], help="Screen format used for full page image conversion (default: %(default)s)")
@ -1538,6 +1560,8 @@ if __name__ == "__main__":
assembler = CC65()
elif options.assembler.lower() == "mac65":
assembler = Mac65()
elif options.assembler.lower() == "c":
assembler = CSource()
else:
print(f"Unknown assembler {options.assembler}")
parser.print_help()