iris/kaizen
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

new vector loads/stores

Browse Source
This commit is contained in:
CocoSimone
2023-02-10 02:13:45 +01:00
parent 6d58728239
commit 3786a5fd3b
3 changed files with 63 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/backend/core/RSP.hpp
View File

@@ -258,6 +258,7 @@ struct RSP {
void llv(u32 instr);
void lrv(u32 instr);
void lqv(u32 instr);
void lhv(u32 instr);
void ltv(u32 instr);
void lpv(u32 instr);
void j(u32 instr);
@@ -281,7 +282,9 @@ struct RSP {
void ssv(u32 instr);
void suv(u32 instr);
void slv(u32 instr);
void shv(u32 instr);
void sfv(u32 instr);
void srv(u32 instr);
void spv(u32 instr);
void sllv(u32 instr);
void srlv(u32 instr);

4
src/backend/core/rsp/decode.cpp
View File

@@ -69,7 +69,7 @@ inline void lwc2(RSP& rsp, u32 instr) {
case 0x05: rsp.lrv(instr); break;
case 0x06: rsp.lpv(instr); break;
case 0x07: rsp.luv(instr); break;
case 0x0A: break;
case 0x08: rsp.lhv(instr); break;
case 0x0B: rsp.ltv(instr); break;
default: Util::panic("Unhandled RSP LWC2 {:05b}\n", mask);
}
@@ -84,8 +84,10 @@ inline void swc2(RSP& rsp, u32 instr) {
case 0x02: rsp.slv(instr); break;
case 0x03: rsp.sdv(instr); break;
case 0x04: rsp.sqv(instr); break;
case 0x05: rsp.srv(instr); break;
case 0x06: rsp.spv(instr); break;
case 0x07: rsp.suv(instr); break;
case 0x08: rsp.shv(instr); break;
case 0x09: rsp.sfv(instr); break;
case 0x0A: rsp.swv(instr); break;
case 0x0B: rsp.stv(instr); break;

68
src/backend/core/rsp/instructions.cpp
View File

@@ -219,17 +219,6 @@ void RSP::lqv(u32 instr) {
}
}
void RSP::lrv(u32 instr) {
int e = E1(instr);
u32 addr = gpr[BASE(instr)] + SignExt7bit(OFFSET(instr), 4);
int start = 16 - ((addr & 0xf) - e);
addr &= 0xFFFFFFF0;
for(int i = start; i < 16; i++) {
vpr[VT(instr)].byte[BYTE_INDEX(i & 0xf)] = ReadByte(addr++);
}
}
void RSP::lpv(u32 instr) {
int e = E1(instr);
u32 addr = gpr[BASE(instr)] + SignExt7bit(OFFSET(instr), 3);
@@ -420,6 +409,63 @@ void RSP::spv(u32 instr) {
}
}
void RSP::srv(u32 instr) {
u32 address = gpr[BASE(instr)] + SignExt7bit(OFFSET(instr), 4);
int start = E1(instr);
int end = start + (address & 15);
int base = 16 - (address & 15);
address &= ~15;
for(int i = start; i < end; i++) {
WriteByte(address++, vpr[VT(instr)].byte[BYTE_INDEX((i + base) & 0xF)]);
}
}
void RSP::shv(u32 instr) {
u32 address = gpr[BASE(instr)] + SignExt7bit(OFFSET(instr), 4);
u32 in_addr_offset = address & 0x7;
address &= ~0x7;
int e = E1(instr);
for (int i = 0; i < 8; i++) {
int byte_index = (i * 2) + e;
u16 val = vpr[VT(instr)].byte[BYTE_INDEX(byte_index & 15)] << 1;
val |= vpr[VT(instr)].byte[BYTE_INDEX((byte_index + 1) & 15)] >> 7;
u8 b = val & 0xFF;
int ofs = in_addr_offset + (i * 2);
WriteByte(address + (ofs & 0xF), b);
}
}
void RSP::lhv(u32 instr) {
u32 address = gpr[BASE(instr)] + SignExt7bit(OFFSET(instr), 4);
u32 in_addr_offset = address & 0x7;
address &= ~0x7;
int e = E1(instr);
for (int i = 0; i < 8; i++) {
int ofs = ((16 - e) + (i * 2) + in_addr_offset) & 0xF;
u16 val = ReadByte(address + ofs);
val <<= 7;
vpr[VT(instr)].element[ELEMENT_INDEX(i)] = val;
}
}
void RSP::lrv(u32 instr) {
u32 address = gpr[BASE(instr)] + SignExt7bit(OFFSET(instr), 4);
int e = E1(instr);
int start = 16 - ((address & 15) - e);
address &= ~15;
for(int i = start; i < 16; i++) {
vpr[VT(instr)].byte[BYTE_INDEX(i & 0xF)] = ReadByte(address++);
}
}
void RSP::sfv(u32 instr) {
VPR& vt = vpr[VT(instr)];
u32 address = gpr[BASE(instr)] + SignExt7bit(OFFSET(instr), 4);