Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-10-06 17:08:28 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

ok, level depth wasn't my black bar issue, seems the lower parts of the backgrounds weren't getting handled properly by another command, not sure how much I trust this logic tho (nw)

Browse Source
This commit is contained in:
David Haywood 2013-08-04 17:54:23 +00:00
parent 1a9ef1251f
commit 5621ffea5f
1 changed files with 26 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
src/mame/machine/pgmprot_igs027a_type1.c
View File

@ -606,6 +606,7 @@ UINT8 puzzli2_level_decode[256] = {
};
void pgm_arm_type1_state::command_handler_puzzli2(int pc)
{
@ -814,9 +815,11 @@ void pgm_arm_type1_state::command_handler_puzzli2(int pc)
case 0x47:
printf("%08x: %02x %04x (GFX OFF PART 1)\n",pc, m_ddp3lastcommand, m_value0);
hack_47_value = ((m_value0 & 0x0700)>>8) * 0x19;
hack_47_value +=((m_value0 & 0x0007)>>0) * 0x05;
if (m_value0 & 0xf8f8) printf("unhandled 0x47 bits %04x\n", m_value0);
hack_47_value = m_value0;
//hack_47_value = ((m_value0 & 0x0700)>>8) * 0x19;
//hack_47_value +=((m_value0 & 0x0007)>>0) * 0x05;
if (m_value0 & 0xf0f0) printf("unhandled 0x47 bits %04x\n", m_value0);
//printf("0x47 value was %04x - using %04x\n", m_value0, hack_47_value);
@ -828,14 +831,27 @@ void pgm_arm_type1_state::command_handler_puzzli2(int pc)
printf("%08x: %02x %04x (GFX OFF PART 2)\n",pc, m_ddp3lastcommand, m_value0);
//printf("which %04x\n", m_value0);
if (m_value0 & 0xfff0) printf("unhandled 0x52 bits %04x\n", m_value0);
hack_47_value += m_value0 & 0x0007;
// it writes a value of 0x0000 then expects to read back like
// this for the lower part of the game backgrounds
if (m_value0==0x0000)
{
int val = ((hack_47_value & 0x0f00)>>8) * 0x19;
m_valueresponse = 0x00740000 | (val & 0xffff);
}
else
{
int val = ((hack_47_value & 0x0f00)>>8) * 0x19;
val +=((hack_47_value & 0x000f)>>0) * 0x05;
val += m_value0 & 0x000f;
m_valueresponse = 0x00740000 | (val & 0xffff);
}
//printf("0x52 - adding %04x value is now %04x\n", m_value0, hack_47_value);
if (m_value0 & 0xfff8) printf("unhandled 0x52 bits %04x\n", m_value0);
m_valueresponse = 0x00740000 | (hack_47_value & 0xffff);
break;