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PPU Debugger: Improve move from/to CR registers instructions

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Eladash 2020-10-17 20:15:57 +03:00 • committed by Ivan
parent 15efb73aae
commit fa0b02ed30
2 changed files with 34 additions and 4 deletions
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30
rpcs3/Emu/Cell/PPUDisAsm.cpp
View file

@ -1328,7 +1328,18 @@ void PPUDisAsm::MFOCRF(ppu_opcode_t op)
{
if (op.l11)
{
DisAsm_R1_IMM("mfocrf", op.rd, op.crm);
const u8 crm = static_cast<u8>(op.crm);
const int cr = std::countl_zero<u8>(crm);
if (cr >= 8 || crm & (crm - 1))
{
// Note: invalid form
DisAsm_R1_IMM("mfocrf", op.rd, crm);
}
else
{
DisAsm_R1_CR1("mfocrf", op.rd, cr);
}
}
else
{
@ -1495,13 +1506,24 @@ void PPUDisAsm::ADDE(ppu_opcode_t op)
void PPUDisAsm::MTOCRF(ppu_opcode_t op)
{
if (op.l11)
const u8 crm = static_cast<u8>(op.crm);
if (!op.l11 && crm == 0xff)
{
DisAsm_INT1_R1("mtocrf", op.crm, op.rs);
DisAsm_R1("mtcr", op.rs);
return;
}
const int cr = std::countl_zero<u8>(crm);
const auto name = op.l11 ? "mtocrf" : "mtcrf";
if (cr >= 8 || crm & (crm - 1))
{
DisAsm_INT1_R1(name, crm, op.rs);
}
else
{
DisAsm_INT1_R1("mtcrf", op.crm, op.rs);
DisAsm_CR1_R1(name, cr, op.rs);
}
}

8
rpcs3/Emu/Cell/PPUDisAsm.h
View file

@ -219,6 +219,14 @@ private:
{
Write(fmt::format("%s%s cr%d,r%d,r%d", FixOp(op), (rc ? "." : ""), cr0, r0, r1));
}
void DisAsm_CR1_R1(const std::string& op, u32 cr0, u32 r0)
{
Write(fmt::format("%s cr%d,r%d", FixOp(op), cr0, r0));
}
void DisAsm_R1_CR1(const std::string& op, u32 r0, u32 cr0)
{
Write(fmt::format("%s r%d,cr%d", FixOp(op), r0, cr0));
}
void DisAsm_CR1_R2(const std::string& op, u32 cr0, u32 r0, u32 r1)
{
DisAsm_CR1_R2_RC(op, cr0, r0, r1, false);