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Fix for debug crash of all peplus.c sets from Judge (nw)

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This commit is contained in:
Scott Stone 2013-12-23 22:16:49 +00:00
parent 0563270006
commit f4ef11efa0
1 changed files with 9 additions and 8 deletions
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17
src/mame/drivers/peplus.c
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@ -995,6 +995,7 @@ UINT32 peplus_state::screen_update_peplus(screen_device &screen, bitmap_ind16 &b
void peplus_state::palette_init()
{
const UINT8 *color_prom = memregion("proms")->base();
UINT32 proms_size = memregion("proms")->bytes();
/* prom bits
7654 3210
---- -xxx red component.
@ -1008,20 +1009,20 @@ void peplus_state::palette_init()
int bit0, bit1, bit2, r, g, b;
/* red component */
bit0 = (~color_prom[i] >> 0) & 0x01;
bit1 = (~color_prom[i] >> 1) & 0x01;
bit2 = (~color_prom[i] >> 2) & 0x01;
bit0 = (~color_prom[i % proms_size] >> 0) & 0x01;
bit1 = (~color_prom[i % proms_size] >> 1) & 0x01;
bit2 = (~color_prom[i % proms_size] >> 2) & 0x01;
r = 0x21 * bit2 + 0x47 * bit1 + 0x97 * bit0;
/* green component */
bit0 = (~color_prom[i] >> 3) & 0x01;
bit1 = (~color_prom[i] >> 4) & 0x01;
bit2 = (~color_prom[i] >> 5) & 0x01;
bit0 = (~color_prom[i % proms_size] >> 3) & 0x01;
bit1 = (~color_prom[i % proms_size] >> 4) & 0x01;
bit2 = (~color_prom[i % proms_size] >> 5) & 0x01;
g = 0x21 * bit2 + 0x47 * bit1 + 0x97 * bit0;
/* blue component */
bit0 = (~color_prom[i] >> 6) & 0x01;
bit1 = (~color_prom[i] >> 7) & 0x01;
bit0 = (~color_prom[i % proms_size] >> 6) & 0x01;
bit1 = (~color_prom[i % proms_size] >> 7) & 0x01;
bit2 = 0;
b = 0x21 * bit2 + 0x47 * bit1 + 0x97 * bit0;