Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 08:22:15 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

(MESS) apple2: disable orange/blue in hires if dhires set but not 80col. [R. Belmont, Peter Ferrie]

Browse Source
This commit is contained in:
arbee 2014-12-09 23:05:20 -05:00
parent 833fba4448
commit 9adc2bef71
1 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/mess/video/apple2.c
View File

@ -1201,7 +1201,15 @@ void a2_video_device::hgr_update(screen_device &screen, bitmap_ind16 &bitmap, co
switch (mon_type)
{
case 0:
artifact_map_ptr = &m_hires_artifact_map[((vram_row[col+1] & 0x80) >> 7) * 16];
// verified on h/w: setting dhires w/o 80col emulates a rev. 0 Apple ][ with no orange/blue
if (m_dhires)
{
artifact_map_ptr = m_hires_artifact_map;
}
else
{
artifact_map_ptr = &m_hires_artifact_map[((vram_row[col + 1] & 0x80) >> 7) * 16];
}
for (b = 0; b < 7; b++)
{
v = artifact_map_ptr[((w >> (b + 7-1)) & 0x07) | (((b ^ col) & 0x01) << 3)];