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ssv: fixed bit #a of 7a-7b CRT register [Roberto Zandona']

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Roberto Zandona 2010-09-11 18:35:29 +00:00
parent fa513efd5e
commit 7f48beec63
1 changed files with 3 additions and 5 deletions
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8
src/mame/video/ssv.c
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@ -881,7 +881,7 @@ static void draw_sprites(running_machine *machine, bitmap_t *bitmap, const recta
sprites_offsx = -((ssv_scroll[0x7a/2] & 0x0800) >> 8);
sprites_offsy = (-1)*((ssv_scroll[0x70/2] & 0x1ff) - (ssv_scroll[0x70/2] & 0x200)
+ ssv_scroll[0x6a/2] + 1) + ((!ssv_scroll[0x7a/2] & 0x0800) >> 8);
+ ssv_scroll[0x6a/2] + 1) - (((ssv_scroll[0x7a/2] ^ 0x0800) & 0x0800) >> 8);
if (ssv_scroll[0x74/2] & 0x4000) // srmp7, twineag2, ultrax, vasara
{
@ -889,14 +889,12 @@ static void draw_sprites(running_machine *machine, bitmap_t *bitmap, const recta
if (ssv_scroll[0x74/2] & 0x8000)
sy += 0x00; // srmp7, twineag2, ultrax
else
sy -= 0x08; // vasara
sy -= 0x10; // vasara
}
// sprites can use x and y coordinates relative to a side, the other side or the center
// for now we use a kludge
if (ssv_scroll[0x74/2] & 0x8000)
{
if (ssv_scroll[0x76/2] & 0x4000) { // twineag2, ultrax
@ -924,7 +922,7 @@ static void draw_sprites(running_machine *machine, bitmap_t *bitmap, const recta
}
/* Sprite code masking */
if(xnum == 2 && ynum == 4) // needed by hypreact
if (xnum == 2 && ynum == 4) // needed by hypreact
{
code &= ~7;
}