Split isa_parser_t out of processor.* and into its own file (#955)

The main motivation for this is that we want to move the ISA parsing
logic to run before we even construct a simulator. That's probably a
bit nicer if we don't depend on the processor header.

It also means that we can stop depending on processor.h in disasm.cc
or spike_log_parser.cc (both through disasm.h), which feels a bit
cleaner: making sense of an instruction trace shouldn't really require
knowledge of the internal state of a processor.

1 files changed, 1 insertions, 74 deletions

diff --git a/riscv/processor.h b/riscv/processor.h
index 7f64857..7d05346 100644
--- a/riscv/processor.h
+++ b/riscv/processor.h
@@ -14,6 +14,7 @@
 #include "debug_rom_defines.h"
 #include "entropy_source.h"
 #include "csrs.h"
+#include "isa_parser.h"
 
 class processor_t;
 class mmu_t;
@@ -250,56 +251,6 @@ typedef enum {
   OPERATION_LOAD,
 } trigger_operation_t;
 
-typedef enum {
-  // 65('A') ~ 90('Z') is reserved for standard isa in misa
-  EXT_ZFH,
-  EXT_ZFHMIN,
-  EXT_ZBA,
-  EXT_ZBB,
-  EXT_ZBC,
-  EXT_ZBS,
-  EXT_ZBKB,
-  EXT_ZBKC,
-  EXT_ZBKX,
-  EXT_ZKND,
-  EXT_ZKNE,
-  EXT_ZKNH,
-  EXT_ZKSED,
-  EXT_ZKSH,
-  EXT_ZKR,
-  EXT_ZMMUL,
-  EXT_ZBPBO,
-  EXT_ZPN,
-  EXT_ZPSFOPERAND,
-  EXT_SVNAPOT,
-  EXT_SVPBMT,
-  EXT_SVINVAL,
-  EXT_ZDINX,
-  EXT_ZFINX,
-  EXT_ZHINX,
-  EXT_ZHINXMIN,
-  EXT_ZICBOM,
-  EXT_ZICBOZ,
-  EXT_ZICNTR,
-  EXT_ZIHPM,
-  EXT_XZBP,
-  EXT_XZBS,
-  EXT_XZBE,
-  EXT_XZBF,
-  EXT_XZBC,
-  EXT_XZBM,
-  EXT_XZBR,
-  EXT_XZBT,
-} isa_extension_t;
-
-typedef enum {
-  IMPL_MMU_SV32,
-  IMPL_MMU_SV39,
-  IMPL_MMU_SV48,
-  IMPL_MMU_SBARE,
-  IMPL_MMU,
-} impl_extension_t;
-
 // Count number of contiguous 1 bits starting from the LSB.
 static int cto(reg_t val)
 {
@@ -309,30 +260,6 @@ static int cto(reg_t val)
   return res;
 }
 
-class isa_parser_t {
-public:
-  isa_parser_t(const char* str, const char *priv);
-  ~isa_parser_t(){};
-  unsigned get_max_xlen() const { return max_xlen; }
-  reg_t get_max_isa() const { return max_isa; }
-  std::string get_isa_string() const { return isa_string; }
-  bool extension_enabled(unsigned char ext) const {
-    if (ext >= 'A' && ext <= 'Z')
-      return (max_isa >> (ext - 'A')) & 1;
-    else
-      return extension_table[ext];
-  }
-  const std::unordered_map<std::string, extension_t*> &
-  get_extensions() const { return extensions; }
-
-protected:
-  unsigned max_xlen;
-  reg_t max_isa;
-  std::vector<bool> extension_table;
-  std::string isa_string;
-  std::unordered_map<std::string, extension_t*> extensions;
-};
-
 // this class represents one processor in a RISC-V machine.
 class processor_t : public abstract_device_t
 {