Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-20 15:32:45 +03:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity

mac128: run vblank at the correct rate, fixes many instances of slowness [Jonathan Gevaryahu]

Browse Source
This commit is contained in:
arbee 2021-03-25 18:51:21 -04:00
parent f74258cb63
commit ee3ad3aefc
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/mame/drivers/mac128.cpp
View File

@ -207,6 +207,7 @@ private:
DECLARE_WRITE_LINE_MEMBER(scsi_irq_w);
DECLARE_WRITE_LINE_MEMBER(scsi_drq_w);
DECLARE_WRITE_LINE_MEMBER(set_scc_interrupt);
DECLARE_WRITE_LINE_MEMBER(vblank_w);
WRITE_LINE_MEMBER(adb_irq_w) { m_adb_irq_pending = state; }
@ -240,7 +241,7 @@ private:
uint32_t m_overlay;
int m_irq_count, m_ca1_data, m_ca2_data;
int m_irq_count, m_ca2_data;
uint8_t m_mouse_bit[2], m_mouse_last[2];
int16_t m_mouse_last_m[2], m_mouse_count[2];
int m_screen_buffer;
@ -276,7 +277,6 @@ void mac128_state::machine_start()
save_item(NAME(m_overlay));
save_item(NAME(m_irq_count));
save_item(NAME(m_ca1_data));
save_item(NAME(m_ca2_data));
save_item(NAME(m_mouse_bit));
save_item(NAME(m_mouse_last));
@ -312,7 +312,6 @@ void mac128_state::machine_reset()
m_main_buffer = true;
m_snd_vol = 3;
m_irq_count = 0;
m_ca1_data = 0;
m_ca2_data = 0;
m_adb_irq_pending = 0;
m_drive_select = 0;
@ -406,9 +405,6 @@ void mac128_state::set_via_interrupt(int value)
void mac128_state::vblank_irq()
{
m_ca1_data ^= 1;
m_via->write_ca1(m_ca1_data);
if (m_macadb)
{
m_macadb->adb_vblank();
@ -441,6 +437,11 @@ void mac128_state::update_volume()
}
}
WRITE_LINE_MEMBER(mac128_state::vblank_w)
{
m_via->write_ca1(state);
}
TIMER_CALLBACK_MEMBER(mac128_state::mac_scanline)
{
int scanline = param;
@ -1089,6 +1090,7 @@ void mac128_state::mac512ke(machine_config &config)
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_raw(15.6672_MHz_XTAL, MAC_H_TOTAL, 0, MAC_H_VIS, MAC_V_TOTAL, 0, MAC_V_VIS);
m_screen->set_screen_update(FUNC(mac128_state::screen_update_mac));
m_screen->screen_vblank().set(FUNC(mac128_state::vblank_w));
m_screen->set_palette("palette");
PALETTE(config, "palette", palette_device::MONOCHROME_INVERTED);