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added driver sim

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This commit is contained in:
Blaise Tine
2020-03-16 08:02:23 -04:00
parent 36547821fc
commit c41855ee42
14 changed files with 1837 additions and 170 deletions
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140
simX/include/mem.h
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@@ -168,16 +168,18 @@ namespace Harp {
bool disableVm;
};
class RAM : public MemDevice {
public:
uint8_t* mem[1 << 12];
RAM(){
for(uint32_t i = 0;i < (1 << 12);i++) mem[i] = NULL;
for(uint32_t i = 0;i < (1 << 12);i++)
mem[i] = NULL;
}
~RAM(){
for(uint32_t i = 0;i < (1 << 12);i++) if(mem[i]) delete [] mem[i];
for(uint32_t i = 0;i < (1 << 12);i++)
if(mem[i])
delete [] mem[i];
}
void clear(){
@@ -218,7 +220,7 @@ namespace Harp {
}
}
virtual Size size() const { return (1<<31); };
virtual Size size() const { return -1; }
void getBlock(uint32_t address, uint8_t *data)
{
@@ -325,137 +327,9 @@ namespace Harp {
// MEMORY UTILS
uint32_t hti_old(char c) {
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
return c - '0';
}
uint32_t hToI_old(char *c, uint32_t size) {
uint32_t value = 0;
for (uint32_t i = 0; i < size; i++) {
value += hti_old(c[i]) << ((size - i - 1) * 4);
}
return value;
}
void loadHexImpl(std::string path) {
this->clear();
FILE *fp = fopen(&path[0], "r");
if(fp == 0){
std::cout << path << " not found" << std::endl;
}
//Preload 0x0 <-> 0x80000000 jumps
((uint32_t*)this->get(0))[0] = 0xf1401073;
((uint32_t*)this->get(0))[1] = 0xf1401073;
// ((uint32_t*)this->get(0))[1] = 0xf1401073;
((uint32_t*)this->get(0))[2] = 0x30101073;
((uint32_t*)this->get(0))[3] = 0x800000b7;
((uint32_t*)this->get(0))[4] = 0x000080e7;
((uint32_t*)this->get(0x80000000))[0] = 0x00000097;
((uint32_t*)this->get(0xb0000000))[0] = 0x01C02023;
// F00FFF10
((uint32_t*)this->get(0xf00fff10))[0] = 0x12345678;
((uint32_t*)this->get(0x70000000))[0] = 0x00008067;
{
uint32_t init_addr = 0x70000004;
for (int off = 0; off < 1024; off+=4)
{
uint32_t new_addr = init_addr+off;
((uint32_t*)this->get(new_addr))[0] = 0x00000000;
}
}
{
uint32_t init_addr = 0x71000000;
for (int off = 0; off < 1024; off+=4)
{
uint32_t new_addr = init_addr+off;
((uint32_t*)this->get(new_addr))[0] = 0x00000000;
}
}
{
uint32_t init_addr = 0x72000000;
for (int off = 0; off < 1024; off+=4)
{
uint32_t new_addr = init_addr+off;
((uint32_t*)this->get(new_addr))[0] = 0x00000000;
}
}
fseek(fp, 0, SEEK_END);
uint32_t size = ftell(fp);
fseek(fp, 0, SEEK_SET);
char* content = new char[size];
int x = fread(content, 1, size, fp);
if (!x) { std::cout << "COULD NOT READ FILE\n"; std::abort();}
int offset = 0;
char* line = content;
// std::cout << "WHTA\n";
while (1) {
if (line[0] == ':') {
uint32_t byteCount = hToI_old(line + 1, 2);
uint32_t nextAddr = hToI_old(line + 3, 4) + offset;
uint32_t key = hToI_old(line + 7, 2);
switch (key) {
case 0:
for (uint32_t i = 0; i < byteCount; i++) {
unsigned add = nextAddr + i;
*(this->get(add)) = hToI_old(line + 9 + i * 2, 2);
// std::cout << "lhi: Address: " << std::hex <<(add) << "\tValue: " << std::hex << hToI_old(line + 9 + i * 2, 2) << std::endl;
}
break;
case 2:
// cout << offset << endl;
offset = hToI_old(line + 9, 4) << 4;
break;
case 4:
// cout << offset << endl;
offset = hToI_old(line + 9, 4) << 16;
break;
default:
// cout << "??? " << key << endl;
break;
}
}
while (*line != '\n' && size != 0) {
line++;
size--;
}
if (size <= 1)
break;
line++;
size--;
}
if (content) delete[] content;
}
void loadHexImpl(std::string path);
};
}