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Procrastinating this semi-fix from too much time, 1/2 frames in Samurai Showdown 64 games are now visible, nw

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This commit is contained in:
Angelo Salese 2014-01-29 00:17:22 +00:00
parent ef3421e19b
commit 80a33e7a1c
2 changed files with 19 additions and 18 deletions
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33
src/mame/drivers/hng64.c
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@ -650,7 +650,7 @@ READ32_MEMBER(hng64_state::fight_io_r)
switch (offset*4) switch (offset*4)
{ {
case 0x000: return 0x00000400; case 0x000: return 0x00000400;
case 0x004: return ioport("SYSTEM")->read(); case 0x004: return ioport("SYSTEM")->read();
case 0x008: return ioport("P1_P2")->read(); case 0x008: return ioport("P1_P2")->read();
case 0x600: return m_no_machine_error_code; case 0x600: return m_no_machine_error_code;
@ -914,16 +914,17 @@ WRITE32_MEMBER(hng64_state::dl_upload_w)
machine().scheduler().timer_set(m_maincpu->cycles_to_attotime(0x200*8), timer_expired_delegate(FUNC(hng64_state::hng64_3dfifo_processed),this)); machine().scheduler().timer_set(m_maincpu->cycles_to_attotime(0x200*8), timer_expired_delegate(FUNC(hng64_state::hng64_3dfifo_processed),this));
} }
/* Note: Samurai Shodown games never calls bit 1, so it can't be framebuffer clear. It also calls bit 3 at start-up, meaning unknown */
WRITE32_MEMBER(hng64_state::dl_control_w) // This handles framebuffers WRITE32_MEMBER(hng64_state::dl_control_w) // This handles framebuffers
{ {
if(data & 2) // clear current buffer //if(data & 2) // swap buffers
{ //{
clear3d(); // clear3d();
} //}
// printf("%02x\n",data); // printf("%02x\n",data);
// if(data & 1) // swap buffers? // if(data & 1) // process DMA from 3d FIFO to framebuffer
// if(data & 4) // reset buffer count // if(data & 4) // reset buffer count
} }
@ -983,11 +984,11 @@ READ32_MEMBER(hng64_state::tcram_r)
*/ */
READ32_MEMBER(hng64_state::unk_vreg_r) READ32_MEMBER(hng64_state::unk_vreg_r)
{ {
// m_unk_vreg_toggle^=0x8000; // m_unk_vreg_toggle^=0x8000;
return 0; return 0;
// return ++m_unk_vreg_toggle; // return ++m_unk_vreg_toggle;
} }
/***** I don't think there is a soundram2, having it NOT hooked up causes xrally to copy the sound program to the expected location, see memory map note *****/ /***** I don't think there is a soundram2, having it NOT hooked up causes xrally to copy the sound program to the expected location, see memory map note *****/
@ -1892,11 +1893,11 @@ TIMER_DEVICE_CALLBACK_MEMBER(hng64_state::hng64_irq)
switch(scanline) switch(scanline)
{ {
case 224*2: m_set_irq(0x0001); break; // lv 0 vblank irq case 224*2: m_set_irq(0x0001); break; // lv 0 vblank irq
// case 0*2: m_set_irq(0x0002); break; // lv 1 // case 0*2: m_set_irq(0x0002); break; // lv 1
// case 32*2: m_set_irq(0x0008); break; // lv 2 // case 32*2: m_set_irq(0x0008); break; // lv 2
// case 64*2: m_set_irq(0x0008); break; // lv 2 // case 64*2: m_set_irq(0x0008); break; // lv 2
case 128*2: m_set_irq(0x0800); break; // lv 11 network irq? case 128*2: m_set_irq(0x0800); break; // lv 11 network irq?
} }
} }
@ -1925,11 +1926,11 @@ void hng64_state::machine_reset()
m_audiocpu->set_input_line(INPUT_LINE_HALT, ASSERT_LINE); m_audiocpu->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
m_audiocpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE); m_audiocpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
// m_comm->set_input_line(INPUT_LINE_RESET, PULSE_LINE); // reset the CPU and let 'er rip // m_comm->set_input_line(INPUT_LINE_RESET, PULSE_LINE); // reset the CPU and let 'er rip
// m_comm->set_input_line(INPUT_LINE_HALT, ASSERT_LINE); // hold on there pardner... // m_comm->set_input_line(INPUT_LINE_HALT, ASSERT_LINE); // hold on there pardner...
// "Display List" init - ugly // "Display List" init - ugly
// m_activeBuffer = 0; // m_activeBuffer = 0;
/* For simulate MCU stepping */ /* For simulate MCU stepping */
m_mcu_fake_time = 0; m_mcu_fake_time = 0;

4
src/mame/video/hng64.c
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@ -1636,8 +1636,8 @@ UINT32 hng64_state::screen_update_hng64(screen_device &screen, bitmap_rgb32 &bit
void hng64_state::screen_eof_hng64(screen_device &screen, bool state) void hng64_state::screen_eof_hng64(screen_device &screen, bool state)
{ {
// rising edge // rising edge
//if (state) if (state)
// clear3d(); clear3d();
} }
void hng64_state::video_start() void hng64_state::video_start()