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DSPLLE-int AR increase, decrease finally 100% (code by kiesel-stein/dolphin-forum, great work btw!!)

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6569 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marko Pusljar 2010-12-12 17:09:40 +00:00
parent 73da637a42
commit b56dd2ad6e
1 changed files with 36 additions and 72 deletions
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108
Source/Core/DSPCore/Src/DSPIntUtil.h
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@ -51,11 +51,6 @@ inline bool dsp_SR_is_flag_set(int flag)
// ---------------------------------------------------------------------------------------
// --- AR increments, decrements
// ---------------------------------------------------------------------------------------
//
// HORRIBLE UGLINESS, someone please fix.
// See http://code.google.com/p/dolphin-emu/source/detail?r=3125
//
// increment, decrement 100% ok (as far as i can tell), increase, decrease still probs
// NextPowerOf2()-1
inline u16 ToMask(u16 a)
@ -66,73 +61,50 @@ inline u16 ToMask(u16 a)
return a | (a >> 1);
}
inline u16 dsp_increment_addr_reg(u16 reg, u16 ar)
{
u16 wr = g_dsp.r[DSP_REG_WR0 + reg];
u16 tmb = ToMask(wr);
if ((ar & tmb) == tmb)
ar-=wr;
else
ar++;
return ar;
}
inline u16 dsp_increment_addr_reg(u16 reg)
{
return dsp_increment_addr_reg(reg, g_dsp.r[reg]);
}
inline u16 dsp_decrement_addr_reg(u16 reg, u16 ar)
{
u16 wr = g_dsp.r[DSP_REG_WR0 + reg];
u16 tmb = ToMask(wr);
u16 min = (tmb+1-ar)&tmb;
if ((wr < min) || !min)
ar+=wr;
else
ar--;
return ar;
}
inline u16 dsp_decrement_addr_reg(u16 reg)
{
return dsp_decrement_addr_reg(reg, g_dsp.r[reg]);
}
inline u16 dsp_increase_addr_reg(u16 reg, s16 ix)
{
u16 ar = g_dsp.r[reg];
if (ix > 0) {
for (s32 i = 0; i < ix; i++) {
ar = dsp_increment_addr_reg(reg, ar);
}
} else if (ix < 0) {
for (s32 i = 0; i < (-ix); i++) {
ar = dsp_decrement_addr_reg(reg, ar);
}
}
return ar;
u16 wr = g_dsp.r[reg+8];
u16 m = ToMask(wr) | 1;
u16 nar = ar+ix;
if (ix >= 0) {
if((ar&m)+(ix&m) -m-1 >= 0)
nar -= wr+1;
} else {
if((ar&m)+(ix&m) -m-1 < m-wr)
nar += wr+1;
}
return nar;
}
inline u16 dsp_decrease_addr_reg(u16 reg, s16 ix)
inline u16 dsp_decrease_addr_reg(u16 reg, s16 ix)
{
u16 ar = g_dsp.r[reg];
if (ix > 0) {
for (s32 i = 0; i < ix; i++) {
ar = dsp_decrement_addr_reg(reg, ar);
}
} else if (ix < 0) {
for (s32 i = 0; i < (-ix); i++) {
ar = dsp_increment_addr_reg(reg, ar);
}
}
return ar;
u16 wr = g_dsp.r[reg+8];
u16 m = ToMask(wr) | 1;
ix = -ix-1;
u16 nar = ar+ix+1;
if (ix-1 >= 0) {
if((ar&m)+(ix&m) -m >= 0)
nar -= wr+1;
} else {
if((ar&m)+(ix&m) -m < m-wr)
nar += wr+1;
}
return nar;
}
inline u16 dsp_increment_addr_reg(u16 reg)
{
return dsp_increase_addr_reg(reg, 1);
}
inline u16 dsp_decrement_addr_reg(u16 reg)
{
return dsp_decrease_addr_reg(reg, 1);
}
// ---------------------------------------------------------------------------------------
// --- reg
// ---------------------------------------------------------------------------------------
@ -223,7 +195,7 @@ inline s64 dsp_get_long_prod_round_prodl()
}
// For accurate emulation, this is wrong - but the real prod registers behave
// in completely bizarre ways. Probably not meaningful to emulate them accurately.
// in completely bizarre ways. Not needed to emulate them correctly for game ucodes.
inline void dsp_set_long_prod(s64 val)
{
#if PROFILE
@ -248,7 +220,6 @@ inline s64 dsp_get_long_acc(int reg)
ProfilerAddDelta(g_dsp.err_pc, 1);
#endif
_assert_(reg < 2);
s64 high = (s64)(s8)g_dsp.r[DSP_REG_ACH0 + reg] << 32;
u32 mid_low = ((u32)g_dsp.r[DSP_REG_ACM0 + reg] << 16) | g_dsp.r[DSP_REG_ACL0 + reg];
return high | mid_low;
@ -260,7 +231,6 @@ inline void dsp_set_long_acc(int _reg, s64 val)
ProfilerAddDelta(g_dsp.err_pc, 1);
#endif
_assert_(_reg < 2);
g_dsp.r[DSP_REG_ACL0 + _reg] = (u16)val;
val >>= 16;
g_dsp.r[DSP_REG_ACM0 + _reg] = (u16)val;
@ -285,19 +255,16 @@ inline s64 dsp_round_long_acc(s64 val)
inline s16 dsp_get_acc_l(int _reg)
{
_assert_(_reg < 2);
return g_dsp.r[DSP_REG_ACL0 + _reg];
}
inline s16 dsp_get_acc_m(int _reg)
{
_assert_(_reg < 2);
return g_dsp.r[DSP_REG_ACM0 + _reg];
}
inline s16 dsp_get_acc_h(int _reg)
{
_assert_(_reg < 2);
return g_dsp.r[DSP_REG_ACH0 + _reg];
}
@ -311,19 +278,16 @@ inline s32 dsp_get_long_acx(int _reg)
ProfilerAddDelta(g_dsp.err_pc, 1);
#endif
_assert_(_reg < 2);
return ((u32)g_dsp.r[DSP_REG_AXH0 + _reg] << 16) | g_dsp.r[DSP_REG_AXL0 + _reg];
}
inline s16 dsp_get_ax_l(int _reg)
{
_assert_(_reg < 2);
return (s16)g_dsp.r[DSP_REG_AXL0 + _reg];
}
inline s16 dsp_get_ax_h(int _reg)
{
_assert_(_reg < 2);
return (s16)g_dsp.r[DSP_REG_AXH0 + _reg];
}