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This commit is contained in:
Ross Thompson 2024-06-11 17:14:59 -07:00
parent 8bce2fc739
commit 3e7d07dfb6
1 changed files with 31 additions and 1 deletions
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32
fpga/rvvidaemon/rvvidaemon.c
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@ -189,10 +189,10 @@ void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *
GPRWen = (RequiredFlags >> 3) & 0x1;
FPRWen = (RequiredFlags >> 4) & 0x1;
CSRCount = (RequiredFlags >> 5) & 0xFFF;
payload += 2;
printf("PC = %lx, insn = %x, Mcycle = %lx, Minstret = %lx, Trap = %hhx, PrivilegeMode = %hhx, GPRWen = %hhx, FPRWen = %hhx, CSRCount == %hx\n", *PC, *insn, Mcycle, Minstret, Trap, PrivilegeMode, GPRWen, FPRWen, CSRCount);
if(GPRWen || FPRWen || (CSRCount != 0)){
payload += 2;
// the first bit of payload is the last bit of CSRCount.
ssize_t newPayloadSize = payloadsize - 30;
BitShiftArray(buf2, payload, 1, newPayloadSize);
@ -232,6 +232,36 @@ void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *
printf("%02hhX", buf2[bits]);
}
printf("\n");
if(GPRWen ^ FPRWen){
payload += 8;
Buf2Size = payloadsize - 38;
BitShiftArray(buf2, payload, 6, Buf2Size);
}else if(GPRWen & FPRWen){
payload += 17;
Buf2Size = payloadsize - 47;
BitShiftArray(buf2, payload, 3, Buf2Size);
}else{
Buf2Size = payloadsize - 30;
BitShiftArray(buf2, payload, 1, Buf2Size);
}
int CSRIndex;
uint8_t CSRWen[3] = {0, 0, 0};
uint16_t CSRReg[3];
uint64_t CSRValue[3];
buf2ptr = buf2;
for(CSRIndex = 0; CSRIndex < CSRCount; CSRIndex++){
CSRReg[CSRIndex] = (*(uint16_t *) buf2ptr) & 0xFFF;
Buf2Size -= 1;
BitShiftArray(buf3, buf2ptr + 1, 4, Buf2Size);
CSRValue[CSRIndex] = (*(uint64_t *) buf3);
CSRWen[CSRIndex] = 1;
buf2ptr = buf3;
}
for(CSRIndex = 0; CSRIndex < 3; CSRIndex++){
if(CSRWen[CSRIndex]){
printf("Wrote CSR %x with value %lx\n", CSRReg[CSRIndex], CSRValue[CSRIndex]);
}
}
//printf("Wrote reg %d = %lx\n", FirstReg->RegAddress, FirstReg->RegValue);
}