Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 00:39:36 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Video 512k bank is external to the GIME. It can be changed at anytime. (#12549)

Browse Source
This commit is contained in:
tim lindner 2024-07-07 07:30:20 -07:00 committed by GitHub
parent bca1714529
commit 1d803e7a34
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/mame/trs/gime.cpp
View File

@ -79,6 +79,8 @@
POP*STAR PILOT: Timer is synchronized with scanlines.
Cloud Kingdoms: 512K bank switch on scanline.
**********************************************************************/
@ -1217,8 +1219,7 @@ inline offs_t gime_device::get_video_base()
}
result += ((offs_t) (m_gime_registers[0x0E] & ff9e_mask) * 0x00008)
| ((offs_t) (m_gime_registers[0x0D] & ff9d_mask) * 0x00800)
| ((offs_t) (m_gime_registers[0x0B] & 0x0F) * 0x80000);
| ((offs_t) (m_gime_registers[0x0D] & ff9d_mask) * 0x00800);
return result;
}
@ -1409,6 +1410,8 @@ template<uint8_t xres, gime_device::get_data_func get_data, bool record_mode>
inline uint32_t gime_device::record_scanline_res(int scanline)
{
int column;
/* capture 512K memory bank per scan line */
uint32_t bank_512k = (m_gime_registers[0x0B] & 0x0F) * 0x80000;
uint32_t base_offset = m_legacy_video ? 0 : (m_gime_registers[0x0F] & 0x7F) * 2;
uint32_t offset = 0;
@ -1417,7 +1420,7 @@ inline uint32_t gime_device::record_scanline_res(int scanline)
{
/* input data */
uint8_t data, mode;
offset += ((*this).*(get_data))(m_video_position + ((base_offset + offset) & 0xFF), &data, &mode);
offset += ((*this).*(get_data))((m_video_position + ((base_offset + offset) & 0xFF)) | bank_512k, &data, &mode);
/* and record the pertinent values */
if (record_mode)