processor_t::processor_t(const char* isa, sim_t* sim, uint32_t id,
bool halt_on_reset)
: debug(false), halt_request(false), sim(sim), ext(NULL), id(id),
- halt_on_reset(halt_on_reset)
+ halt_on_reset(halt_on_reset), last_pc(1), executions(1)
{
parse_isa_string(isa);
register_base_instructions();
lowercase += std::tolower(*r);
const char* p = lowercase.c_str();
- const char* all_subsets = "imafdc";
+ const char* all_subsets = "imafdqc";
max_xlen = 64;
isa = reg_t(2) << 62;
p += 2;
if (!*p) {
- p = all_subsets;
+ p = "imafdc";
} else if (*p == 'g') { // treat "G" as "IMAFD"
tmp = std::string("imafd") + (p+1);
p = &tmp[0];
if (supports_extension('D') && !supports_extension('F'))
bad_isa_string(str);
+ if (supports_extension('Q') && !supports_extension('D'))
+ bad_isa_string(str);
+
+ if (supports_extension('Q') && max_xlen < 64)
+ bad_isa_string(str);
+
// advertise support for supervisor and user modes
isa |= 1L << ('s' - 'a');
isa |= 1L << ('u' - 'a');
void processor_t::disasm(insn_t insn)
{
- static uint64_t last_pc = 1, last_bits;
- static uint64_t executions = 1;
-
uint64_t bits = insn.bits() & ((1ULL << (8 * insn_length(insn.bits()))) - 1);
if (last_pc != state.pc || last_bits != bits) {
if (executions != 1) {
state.mideleg = (state.mideleg & ~delegable_ints) | (val & delegable_ints);
break;
case CSR_MEDELEG: {
- reg_t mask = 0;
-#define DECLARE_CAUSE(name, value) mask |= 1ULL << (value);
-#include "encoding.h"
-#undef DECLARE_CAUSE
+ reg_t mask =
+ (1 << CAUSE_MISALIGNED_FETCH) |
+ (1 << CAUSE_BREAKPOINT) |
+ (1 << CAUSE_USER_ECALL) |
+ (1 << CAUSE_FETCH_PAGE_FAULT) |
+ (1 << CAUSE_LOAD_PAGE_FAULT) |
+ (1 << CAUSE_STORE_PAGE_FAULT);
state.medeleg = (state.medeleg & ~mask) | (val & mask);
break;
}