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rfi

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This commit is contained in:
iris
2026-05-15 09:45:26 +02:00
parent 9a2d437b24
commit 723e66871d
5 changed files with 52 additions and 12 deletions
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core/broadway/instructions.cpp
+20 -4
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@@ -94,8 +94,15 @@ void broadway::mfspr(ircolib::u32 instr) {
case 0b0100100000:
gpr[utils::RD(instr)] = ctr;
break;
case 0b1101000000:
gpr[utils::RD(instr)] = srr0;
break;
case 0b1101100000:
// srr1
break;
default:
ircolib::panic("broadway::mfspr with unimplemented spr field of value 0x{:04X}", spr_field);
ircolib::panic("broadway::mfspr with unimplemented spr field of value 0x{:04X} (pc 0x{:08X})", spr_field,
pc - 4);
}
}
@@ -111,8 +118,15 @@ void broadway::mtspr(ircolib::u32 instr) {
case 0b0100100000:
ctr = gpr[utils::RS(instr)];
break;
case 0b1101000000:
srr0 = gpr[utils::RS(instr)];
break;
case 0b1101100000:
// srr1
break;
default:
ircolib::panic("broadway::mtspr with unimplemented spr field of value 0x{:04X}", spr_field);
ircolib::panic("broadway::mtspr with unimplemented spr field of value 0x{:04X} (pc 0x{:08X})", spr_field,
pc - 4);
}
}
@@ -161,10 +175,10 @@ void broadway::bclrx(ircolib::u32 instr) {
if (!ircolib::is_bit_set<ircolib::u32, 25>(instr)) {
if (!ircolib::is_bit_set<ircolib::u32, 24>(instr))
ircolib::panic("broadway::bclrx unimplemented variants with bit 24 == 0");
ircolib::panic("broadway::bclrx unimplemented variants with bit 24 == 0 (pc 0x{:08X})", pc - 4);
if (!ircolib::is_bit_set<ircolib::u32, 23>(instr))
ircolib::panic("broadway::bclrx unimplemented variants with bit 23 == 0");
ircolib::panic("broadway::bclrx unimplemented variants with bit 23 == 0 (pc 0x{:08X})", pc - 4);
const ircolib::u8 bi = (instr >> 16) & 0x1f;
@@ -241,4 +255,6 @@ void broadway::lwzu(ircolib::u32 instr, mem &mem) {
gpr[utils::RD(instr)] = mem.read32(EA);
gpr[utils::RA(instr)] = EA;
}
void broadway::rfi(ircolib::u32 instr) { pc = srr0; }
} // namespace weee::core