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namcos23: Enhance matrix-vector mul [O. Galibert]

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This commit is contained in:
Olivier Galibert 2014-04-02 19:25:55 +00:00
parent ddc2acd46b
commit e9e5edab27
1 changed files with 21 additions and 11 deletions
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20
src/mame/drivers/namcos23.c
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@ -1637,9 +1637,18 @@ void namcos23_state::c435_matrix_vector_mul() // 0.1
logerror("WARNING: c435_matrix_vector_mul with size %d\n", m_c435_buffer[0] & 0xf);
return;
}
if(m_c435_buffer[3] != 0xffff)
logerror("WARNING: c435_matrix_vector_mul with +2=%04x\n", m_c435_buffer[3]);
if(m_c435_buffer[3] != 0xffff) {
INT32 *t = c435_getv(m_c435_buffer[1]);
const INT16 *m = c435_getm(m_c435_buffer[2]);
const INT32 *vt = c435_getv(m_c435_buffer[3]);
const INT32 *v = c435_getv(m_c435_buffer[4]);
t[0] = INT32((m[0]*INT64(v[0]) + m[1]*INT64(v[1]) + m[2]*INT64(v[2])) >> 14) + vt[0];
t[1] = INT32((m[3]*INT64(v[0]) + m[4]*INT64(v[1]) + m[5]*INT64(v[2])) >> 14) + vt[1];
t[2] = INT32((m[6]*INT64(v[0]) + m[7]*INT64(v[1]) + m[8]*INT64(v[2])) >> 14) + vt[2];
} else {
INT32 *t = c435_getv(m_c435_buffer[1]);
const INT16 *m = c435_getm(m_c435_buffer[2]);
const INT32 *v = c435_getv(m_c435_buffer[4]);
@ -1648,6 +1657,7 @@ void namcos23_state::c435_matrix_vector_mul() // 0.1
t[1] = INT32((m[3]*INT64(v[0]) + m[4]*INT64(v[1]) + m[5]*INT64(v[2])) >> 14);
t[2] = INT32((m[6]*INT64(v[0]) + m[7]*INT64(v[1]) + m[8]*INT64(v[2])) >> 14);
}
}
void namcos23_state::c435_matrix_set() // 0.4
{
@ -1791,9 +1801,9 @@ void namcos23_state::c435_pio_w(UINT16 data)
break;
case 0x4000:
switch(h & 0xf00) {
case 0x400: c435_scaling_set(); break;
case 0xf00: c435_state_set(); break;
switch(h & 0x3f00) {
case 0x0400: c435_scaling_set(); break;
case 0x0f00: c435_state_set(); break;
default: known = false; break;
}
break;