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sharc.cpp: fix obvious mistake in compute_fmul_avg (nw)

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model2.cpp: fix Model 2 / 2A garbage 3d when exiting test mode (nw)
This commit is contained in:
angelosa 2018-03-12 15:11:34 +01:00
parent d861cab586
commit 768189e772
2 changed files with 8 additions and 5 deletions
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2
src/devices/cpu/sharc/compute.hxx
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@ -1270,7 +1270,7 @@ void adsp21062_device::compute_fmul_avg(int fm, int fxm, int fym, int fa, int fx
int32_t alu_i;
SHARC_REG r_mul, r_alu;
r_mul.f = FREG(fxm) * FREG(fym);
r_alu.f = (FREG(fxa) * FREG(fya))/((float) 2.0);
r_alu.f = (FREG(fxa) + FREG(fya))/((float) 2.0);
// TODO: are flags right for this?
if (m_core->mode1 & MODE1_TRUNCATE)

11
src/mame/drivers/model2.cpp
View File

@ -39,9 +39,7 @@
- srallyc: some 3d elements doesn't show up properly (tree models, last hill in course 1 is often black colored);
- vcop: sound dies at enter initial screen (i.e. after played the game once) (untested);
- vcop: lightgun input is offsetted (needs to be calibrated in service mode);
- vcop: missing 3d bug at stage select screen (priority?);
- vcop, daytona: 3d gets corrupted if you get into test mode then go into gameplay, looks like the dsp should be
resetted somehow, doing that from the copro_ctl1_w it breaks schamp booting;
- vcop: missing 3d at stage select screen (priority?);
- vstriker: stadium ads have terrible colors (they uses the wrong color table, @see video/model2rd.hxx)
Notes:
@ -826,6 +824,9 @@ WRITE32_MEMBER(model2_state::copro_ctl1_w)
{
logerror("Start copro upload\n");
m_coprocnt = 0;
if(m_dsp_type == DSP_TYPE_TGP)
m_tgp->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
}
else
{
@ -833,6 +834,8 @@ WRITE32_MEMBER(model2_state::copro_ctl1_w)
switch(m_dsp_type)
{
case DSP_TYPE_TGP:
// Model 2 / 2A games needs to reset TGP when exiting service mode
m_tgp->set_input_line(INPUT_LINE_RESET, PULSE_LINE);
m_tgp->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
break;
case DSP_TYPE_SHARC:
@ -2387,7 +2390,7 @@ ADDRESS_MAP_START(model2_state::copro_sharc_map)
AM_RANGE(0x0c00000, 0x13fffff) AM_WRITE(copro_sharc_output_fifo_w)
AM_RANGE(0x1400000, 0x1bfffff) AM_READWRITE(copro_sharc_buffer_r, copro_sharc_buffer_w)
AM_RANGE(0x1c00000, 0x1dfffff) AM_ROM AM_REGION("copro_data", 0)
// AM_RANGE(0x3c000000, 0x3fffffff) AM_WRITE(copro_sharc_output_fifo_w) // last bronx, cpu core bug?
// AM_RANGE(0xffff8000, 0xffffffff) AM_READWRITE(copro_sharc_buffer_r, copro_sharc_buffer_w) // last bronx, cpu core bug?
ADDRESS_MAP_END
#if 0