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carjmbre: add notes (nw)

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hap 2018-01-17 23:19:22 +01:00
parent 963647e231
commit e4640f7cc3
2 changed files with 8 additions and 5 deletions
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9
src/mame/drivers/carjmbre.cpp
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@ -6,8 +6,11 @@
Omori Electric CAD (OEC) 1983
TODO:
- colors are wrong
- sprite priorities?
- colors are probably wrong
- sprite priorities? (eg. player car jumping on the ramp, 1 part disappears)
- first 2 letters on titlescreen look misaligned with the tilemap
- The spriteram holds 2 sprite lists (00-7f and 80-ff), they are identical.
Is it an unused feature? Or a RAM access speed workaround?
----------------------------------------------------------------------------
@ -179,7 +182,7 @@ uint32_t carjmbre_state::screen_update(screen_device &screen, bitmap_ind16 &bitm
void carjmbre_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect)
{
for (int offs = m_spriteram.bytes() - 4; offs >= 0; offs -= 4)
for (int offs = 0x80 - 4; offs >= 0; offs -= 4)
{
int sy = m_spriteram[offs];
int code = m_spriteram[offs + 1];

4
src/mame/drivers/popper.cpp
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@ -326,13 +326,13 @@ uint32_t popper_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
// draw the sprites
for (int offs = 0; offs < 0x800; offs += 4)
{
// 0 76653210 Y coordinate
// 0 76543210 Y coordinate
// 1 76543210 Code
// 2 7------- Flip Y
// 2 -6------ Flip X
// 2 --54---- Not used
// 2 ----3210 Color
// 3 76653210 X coordinate
// 3 76543210 X coordinate
int sx = m_sprite_ram[offs + 3];
int sy = m_sprite_ram[offs + 0];