Apple-2-Tools/applepy
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added HIRES graphics support based on code from ghewgill: 5aa8ca2caa

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This commit is contained in:
James Tauber 2011-08-13 07:52:17 -04:00
parent 8f3b640393
commit e37c4dcbcd
1 changed files with 44 additions and 16 deletions
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36
applepy.py
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@ -133,14 +133,16 @@ class Display:
def update(self, address, value):
if self.page == 1:
start = 0x400
start_text = 0x400
start_hires = 0x2000
elif self.page == 2:
start = 0x800
start_text = 0x800
start_hires = 0x4000
else:
return
if start <= address <= start + 0x3FF:
base = address - start
if start_text <= address <= start_text + 0x3FF:
base = address - start_text
hi, lo = divmod(base, 0x80)
row_group, column = divmod(lo, 0x28)
row = hi + 8 * row_group
@ -173,6 +175,7 @@ class Display:
pixels[x][y + 1] = (0, 0, 0)
pixels[x + 1][y + 1] = (0, 0, 0)
else:
if not self.high_res:
lower, upper = divmod(value, 0x10)
for dx in range(14):
@ -184,7 +187,30 @@ class Display:
x = column * 14 + dx
y = row * 16 + dy
pixels[x][y] = self.lores_colours[lower]
del pixels
elif start_hires <= address <= start_hires + 0x1FFF:
if self.high_res:
base = address - start_hires
row8, b = divmod(base, 0x400)
hi, lo = divmod(b, 0x80)
row_group, column = divmod(lo, 0x28)
row = 8 * (hi + 8 * row_group) + row8
if self.mix and row >= 160:
return
if row < 192 and column < 40:
pixels = pygame.PixelArray(self.screen)
for b in range(7):
c = 0xFFFFFF if (value & (1 << b)) else 0
x = 2 * (column * 7 + b)
y = 2 * row
pixels[x][y] = c
pixels[x + 1][y] = c
pixels[x][y + 1] = c
pixels[x + 1][y + 1] = c
del pixels
@ -301,6 +327,8 @@ class Memory:
self.ram.write_byte(address, value)
if 0x400 <= address < 0x800 and display:
self.display.update(address, value)
if 0x2000 <= address < 0x5FFF and display:
self.display.update(address, value)
class Disassemble: