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Optimizations and bug fixes for font compiler

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blondie7575 2023-07-12 16:37:24 -07:00
parent cbd4b9beeb
commit 4e2d8eb87b
2 changed files with 300 additions and 2263 deletions
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19
CompileFont.py
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@ -67,12 +67,7 @@ def main(argv):
requiredStackIndex = charCol/2 requiredStackIndex = charCol/2
if (nibbles[0]==CHROMA and nibbles[1]==CHROMA and nibbles[2]==CHROMA and nibbles[3]==CHROMA): if (nibbles[0]==CHROMA and nibbles[1]==CHROMA and nibbles[2]==CHROMA and nibbles[3]==CHROMA):
print ("\ttsc") # Case 1 : All chroma, so let stack advance with no work pass # Case 1 : All chroma, so let stack advance with no work
print ("\tdec")
print ("\tdec")
print ("\ttcs")
nextRowDelta-=2
rowPushTotal +=2
elif (nibbles[0]!=CHROMA and nibbles[1]!=CHROMA and nibbles[2]!=CHROMA and nibbles[3]!=CHROMA): elif (nibbles[0]!=CHROMA and nibbles[1]!=CHROMA and nibbles[2]!=CHROMA and nibbles[3]!=CHROMA):
offsetNeeded = (CHAR_WIDTH/2-requiredStackIndex) - rowPushTotal - 2 offsetNeeded = (CHAR_WIDTH/2-requiredStackIndex) - rowPushTotal - 2
if (offsetNeeded>0): if (offsetNeeded>0):
@ -80,11 +75,12 @@ def main(argv):
print ("\tsec") # Note that PEA needs a little +1 to put bytes in the place we expect print ("\tsec") # Note that PEA needs a little +1 to put bytes in the place we expect
print ("\tsbc #%d" % (offsetNeeded+1)) print ("\tsbc #%d" % (offsetNeeded+1))
print ("\ttcs") print ("\ttcs")
print ("\tpea $%04x" % word) # Case 2 : No chroma, so fast push nextRowDelta -= offsetNeeded
print ("\tpea $%04x" % word) # Case 2 : No chroma, so fast push
nextRowDelta -= 3 nextRowDelta -= 3
rowPushTotal += (3+offsetNeeded) rowPushTotal += (3+offsetNeeded)
else: else:
mask = 0xFFFF # Case 3 : Mixed chroma, so mask and or mask = 0xFFFF # Case 3 : Mixed chroma, so mask and or
if (nibbles[0]!=CHROMA): if (nibbles[0]!=CHROMA):
mask = mask & 0xFF0F mask = mask & 0xFF0F
if (nibbles[1]!=CHROMA): if (nibbles[1]!=CHROMA):
@ -106,17 +102,18 @@ def main(argv):
localStackEntry = [requiredStackIndex,mask,sprite] localStackEntry = [requiredStackIndex,mask,sprite]
localStackList.append(localStackEntry) localStackList.append(localStackEntry)
nextRowDelta -= 2
# Process any local stack work we accumulated # Process any local stack work we accumulated
if len(localStackList) > 0: if len(localStackList) > 0:
if (rowPushTotal < CHAR_WIDTH/2): # Get stack pointer to end of row if needed if (rowPushTotal < CHAR_WIDTH/2): # Get stack pointer to end of row if needed
cleanupPush = CHAR_WIDTH/2-rowPushTotal
print ("\ttsc") print ("\ttsc")
print ("\tsec") print ("\tsec")
print ("\tsbc #%d" % (CHAR_WIDTH/2-rowPushTotal)) print ("\tsbc #%d" % cleanupPush)
print ("\ttcs") print ("\ttcs")
rowPushTotal = CHAR_WIDTH/2 rowPushTotal = CHAR_WIDTH/2
nextRowDelta -= cleanupPush
extraReach = rowPushTotal - CHAR_WIDTH/2 extraReach = rowPushTotal - CHAR_WIDTH/2
for stackEntry in localStackList: for stackEntry in localStackList:
print ("\tlda %d,S" % (stackEntry[0] + extraReach)) # Blend mask, sprite, and background print ("\tlda %d,S" % (stackEntry[0] + extraReach)) # Blend mask, sprite, and background

2544
font8x8.s
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