ShuriZma
/
duckstation
mirror of https://github.com/stenzek/duckstation
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

CPU/PGXP: Readability improvements

This commit is contained in:
Stenzek 2024-05-17 19:45:44 +10:00
parent 29d4e04e3b
commit e4bedbbbfa
No known key found for this signature in database
1 changed files with 28 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

83
src/core/cpu_pgxp.cpp
View File

@ -754,12 +754,10 @@ void CPU::PGXP::CPU_ANDI(u32 instr, u32 rsVal)
// Rt = Rs & Imm
const u32 rtVal = rsVal & imm(instr);
psx_value vRt;
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
psx_value vRt;
vRt.d = rtVal;
ret.y = 0.f; // remove upper 16-bits
@ -791,12 +789,11 @@ void CPU::PGXP::CPU_ORI(u32 instr, u32 rsVal)
// Rt = Rs | Imm
const u32 rtVal = rsVal | imm(instr);
psx_value vRt;
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
psx_value vRt;
vRt.d = rtVal;
switch (imm(instr))
@ -820,12 +817,11 @@ void CPU::PGXP::CPU_XORI(u32 instr, u32 rsVal)
// Rt = Rs ^ Imm
const u32 rtVal = rsVal ^ imm(instr);
psx_value vRt;
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
psx_value vRt;
vRt.d = rtVal;
switch (imm(instr))
@ -848,12 +844,10 @@ void CPU::PGXP::CPU_SLTI(u32 instr, u32 rsVal)
LOG_VALUES_C1(rs(instr), rsVal);
// Rt = Rs < Imm (signed)
psx_value tempImm;
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
psx_value tempImm;
tempImm.w.h = imm(instr);
ret.y = 0.f;
ret.x = (g_state.pgxp_gpr[rs(instr)].x < tempImm.sw.h) ? 1.f : 0.f;
@ -868,12 +862,10 @@ void CPU::PGXP::CPU_SLTIU(u32 instr, u32 rsVal)
LOG_VALUES_C1(rs(instr), rsVal);
// Rt = Rs < Imm (Unsigned)
psx_value tempImm;
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
psx_value tempImm;
tempImm.w.h = imm(instr);
ret.y = 0.f;
ret.x = (f16Unsign(g_state.pgxp_gpr[rs(instr)].x) < tempImm.w.h) ? 1.f : 0.f;
@ -906,10 +898,10 @@ void CPU::PGXP::CPU_ADD(u32 instr, u32 rsVal, u32 rtVal)
LOG_VALUES_C2(rs(instr), rsVal, rt(instr), rtVal);
// Rd = Rs + Rt (signed)
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
PGXP_value ret;
if (rtVal == 0)
{
ret = g_state.pgxp_gpr[rs(instr)];
@ -963,7 +955,6 @@ void CPU::PGXP::CPU_SUB(u32 instr, u32 rsVal, u32 rtVal)
LOG_VALUES_C2(rs(instr), rsVal, rt(instr), rtVal);
// Rd = Rs - Rt (signed)
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
@ -975,7 +966,7 @@ void CPU::PGXP::CPU_SUB(u32 instr, u32 rsVal, u32 rtVal)
MakeValid(&g_state.pgxp_gpr[rt(instr)], rtVal);
}
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
ret.x = (float)f16Unsign(ret.x);
ret.x -= (float)f16Unsign(g_state.pgxp_gpr[rt(instr)].x);
@ -1007,8 +998,6 @@ ALWAYS_INLINE_RELEASE void CPU::PGXP::CPU_BITWISE(u32 instr, u32 rdVal, u32 rsVa
LOG_VALUES_C2(rs(instr), rsVal, rt(instr), rtVal);
// Rd = Rs & Rt
psx_value vald, vals, valt;
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
@ -1021,11 +1010,12 @@ ALWAYS_INLINE_RELEASE void CPU::PGXP::CPU_BITWISE(u32 instr, u32 rdVal, u32 rsVa
MakeValid(&g_state.pgxp_gpr[rt(instr)], rtVal);
}
psx_value vald, vals, valt;
vald.d = rdVal;
vals.d = rsVal;
valt.d = rtVal;
// CPU_reg[rd(instr)].valid = CPU_reg[rs(instr)].valid && CPU_reg[rt(instr)].valid;
PGXP_value ret;
ret.flags = VALID_01;
if (vald.w.l == 0)
@ -1135,7 +1125,6 @@ void CPU::PGXP::CPU_SLT(u32 instr, u32 rsVal, u32 rtVal)
LOG_VALUES_C2(rs(instr), rsVal, rt(instr), rtVal);
// Rd = Rs < Rt (signed)
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
@ -1147,7 +1136,7 @@ void CPU::PGXP::CPU_SLT(u32 instr, u32 rsVal, u32 rtVal)
MakeValid(&g_state.pgxp_gpr[rt(instr)], rtVal);
}
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
ret.y = 0.f;
ret.SetValidComp(1, true);
@ -1164,7 +1153,6 @@ void CPU::PGXP::CPU_SLTU(u32 instr, u32 rsVal, u32 rtVal)
LOG_VALUES_C2(rs(instr), rsVal, rt(instr), rtVal);
// Rd = Rs < Rt (unsigned)
PGXP_value ret;
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
@ -1176,7 +1164,7 @@ void CPU::PGXP::CPU_SLTU(u32 instr, u32 rsVal, u32 rtVal)
MakeValid(&g_state.pgxp_gpr[rt(instr)], rtVal);
}
ret = g_state.pgxp_gpr[rs(instr)];
PGXP_value ret = g_state.pgxp_gpr[rs(instr)];
ret.y = 0.f;
ret.SetValidComp(1, true);
@ -1411,11 +1399,10 @@ void CPU::PGXP::CPU_SLL(u32 instr, u32 rtVal)
// Rd = Rt << Sa
const u32 rdVal = rtVal << sa(instr);
PGXP_value ret;
u32 sh = sa(instr);
const u32 sh = sa(instr);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
ret = g_state.pgxp_gpr[rt(instr)];
PGXP_value ret = g_state.pgxp_gpr[rt(instr)];
// TODO: Shift flags
double x = f16Unsign(g_state.pgxp_gpr[rt(instr)].x);
@ -1458,12 +1445,9 @@ void CPU::PGXP::CPU_SRL(u32 instr, u32 rtVal)
// Rd = Rt >> Sa
const u32 rdVal = rtVal >> sa(instr);
PGXP_value ret;
u32 sh = sa(instr);
const u32 sh = sa(instr);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
ret = g_state.pgxp_gpr[rt(instr)];
double x = g_state.pgxp_gpr[rt(instr)].x, y = f16Unsign(g_state.pgxp_gpr[rt(instr)].y);
psx_value iX;
@ -1511,9 +1495,9 @@ void CPU::PGXP::CPU_SRL(u32 instr, u32 rtVal)
x = f16Sign(x);
y = f16Sign(y);
PGXP_value ret = g_state.pgxp_gpr[rt(instr)];
ret.x = (float)x;
ret.y = (float)y;
ret.value = rdVal;
g_state.pgxp_gpr[rd(instr)] = ret;
}
@ -1524,10 +1508,9 @@ void CPU::PGXP::CPU_SRA(u32 instr, u32 rtVal)
// Rd = Rt >> Sa
const u32 rdVal = static_cast<u32>(static_cast<s32>(rtVal) >> sa(instr));
PGXP_value ret;
u32 sh = sa(instr);
const u32 sh = sa(instr);
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
ret = g_state.pgxp_gpr[rt(instr)];
PGXP_value ret = g_state.pgxp_gpr[rt(instr)];
double x = g_state.pgxp_gpr[rt(instr)].x, y = g_state.pgxp_gpr[rt(instr)].y;
@ -1602,13 +1585,10 @@ void CPU::PGXP::CPU_SLLV(u32 instr, u32 rtVal, u32 rsVal)
// Rd = Rt << Rs
const u32 rdVal = rtVal << rsVal;
PGXP_value ret;
u32 sh = rsVal & 0x1F;
const u32 sh = rsVal & 0x1F;
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rt(instr)];
double x = f16Unsign(g_state.pgxp_gpr[rt(instr)].x);
double y = f16Unsign(g_state.pgxp_gpr[rt(instr)].y);
if (sh >= 32)
@ -1636,9 +1616,9 @@ void CPU::PGXP::CPU_SLLV(u32 instr, u32 rtVal, u32 rsVal)
y = f16Sign(y);
}
PGXP_value ret = g_state.pgxp_gpr[rt(instr)];
ret.x = (float)x;
ret.y = (float)y;
ret.value = rdVal;
g_state.pgxp_gpr[rd(instr)] = ret;
}
@ -1649,13 +1629,10 @@ void CPU::PGXP::CPU_SRLV(u32 instr, u32 rtVal, u32 rsVal)
// Rd = Rt >> Sa
const u32 rdVal = rtVal >> rsVal;
PGXP_value ret;
u32 sh = rsVal & 0x1F;
const u32 sh = rsVal & 0x1F;
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rt(instr)];
double x = g_state.pgxp_gpr[rt(instr)].x, y = f16Unsign(g_state.pgxp_gpr[rt(instr)].y);
psx_value iX;
@ -1703,9 +1680,9 @@ void CPU::PGXP::CPU_SRLV(u32 instr, u32 rtVal, u32 rsVal)
x = f16Sign(x);
y = f16Sign(y);
PGXP_value ret = g_state.pgxp_gpr[rt(instr)];
ret.x = (float)x;
ret.y = (float)y;
ret.value = rdVal;
g_state.pgxp_gpr[rd(instr)] = ret;
}
@ -1716,13 +1693,10 @@ void CPU::PGXP::CPU_SRAV(u32 instr, u32 rtVal, u32 rsVal)
// Rd = Rt >> Sa
const u32 rdVal = static_cast<u32>(static_cast<s32>(rtVal) >> rsVal);
PGXP_value ret;
u32 sh = rsVal & 0x1F;
const u32 sh = rsVal & 0x1F;
Validate(&g_state.pgxp_gpr[rt(instr)], rtVal);
Validate(&g_state.pgxp_gpr[rs(instr)], rsVal);
ret = g_state.pgxp_gpr[rt(instr)];
double x = g_state.pgxp_gpr[rt(instr)].x, y = g_state.pgxp_gpr[rt(instr)].y;
psx_value iX;
@ -1767,12 +1741,11 @@ void CPU::PGXP::CPU_SRAV(u32 instr, u32 rtVal, u32 rsVal)
else
y = y / (1 << sh);
PGXP_value ret = g_state.pgxp_gpr[rt(instr)];
x = f16Sign(x);
y = f16Sign(y);
ret.x = (float)x;
ret.y = (float)y;
ret.value = rdVal;
g_state.pgxp_gpr[rd(instr)] = ret;
}