diff options
Diffstat (limited to 'parse-opcodes')
| -rwxr-xr-x | parse-opcodes | 87 |
1 files changed, 71 insertions, 16 deletions
diff --git a/parse-opcodes b/parse-opcodes index 3117b8e..6c12a16 100755 --- a/parse-opcodes +++ b/parse-opcodes @@ -40,6 +40,35 @@ arglut['cimm6'] = (15,10) arglut['cimm10'] = (14,5) arglut['cimm5'] = (9,5) +csrs = [ + (0x001, 'fflags'), + (0x002, 'frm'), + (0x003, 'fcsr'), + (0x500, 'sup0'), + (0x501, 'sup1'), + (0x502, 'epc'), + (0x503, 'badvaddr'), + (0x504, 'ptbr'), + (0x505, 'asid'), + (0x506, 'count'), + (0x507, 'compare'), + (0x508, 'evec'), + (0x509, 'cause'), + (0x50A, 'status'), + (0x50B, 'hartid'), + (0x50C, 'impl'), + (0x50D, 'fatc'), + (0x50E, 'send_ipi'), + (0x50F, 'clear_ipi'), + (0x51C, 'stats'), # XXX + (0x51D, 'reset'), + (0x51E, 'tohost'), + (0x51F, 'fromhost'), + (0xC00, 'cycle'), + (0xC01, 'time'), + (0xC02, 'instret'), +] + opcode_base = 0 opcode_size = 7 funct_base = 12 @@ -49,17 +78,28 @@ def binary(n, digits=0): rep = bin(n)[2:] return rep if digits == 0 else ('0' * (digits - len(rep))) + rep -def make_disasm_table(match,mask): +def make_c(match,mask): print '/* Automatically generated by parse-opcodes */' - for name,match in match.iteritems(): + print '#ifndef RISCV_ENCODING_H' + print '#define RISCV_ENCODING_H' + for name in match.iterkeys(): name2 = name.upper().replace('.','_') - print '#define MATCH_%s %s' % (name2, hex(match)) - print '#define MASK_%s %s' % (name2, hex(mask[name])) + print '#define MATCH_%s %s' % (name2, hex(match[name])) + print '#define MASK_%s %s' % (name2, hex(mask[name])) + for num, name in csrs: + print '#define CSR_%s %s' % (name.upper(), hex(num)) + print '#endif' -def make_isasim(match, mask): + print '#ifdef DECLARE_INSN' for name in match.iterkeys(): name2 = name.replace('.','_') - print 'DECLARE_INSN(%s, 0x%x, 0x%x)' % (name2, match[name], mask[name]) + print 'DECLARE_INSN(%s, MATCH_%s, MASK_%s)' % (name2, name2.upper(), name2.upper()) + print '#endif' + + print '#ifdef DECLARE_CSR' + for num, name in csrs: + print 'DECLARE_CSR(%s, CSR_%s)' % (name, name.upper()) + print '#endif' def yank(num,start,len): return (num >> start) & ((1 << len) - 1) @@ -490,7 +530,7 @@ def make_latex_table(): print_insts('addi', 'slti', 'sltiu', 'xori', 'ori', 'andi', 'slli', 'srli', 'srai') print_insts('add', 'sub', 'sll', 'slt', 'sltu', 'xor', 'srl', 'sra', 'or', 'and') print_insts('fence', 'fence.i') - print_insts('syscall', 'break', 'rdcycle', 'rdtime', 'rdinstret') + print_insts('scall', 'sbreak', 'rdcycle', 'rdtime', 'rdinstret') print_footer(0) print_header('r','a','i','s') @@ -524,7 +564,8 @@ def make_latex_table(): print_insts('fcvt.s.w', 'fcvt.s.wu', 'fmv.s.x') print_insts('fcvt.w.s', 'fcvt.wu.s', 'fmv.x.s') print_insts('feq.s', 'flt.s', 'fle.s') - print_insts('fssr', 'frsr') + print_insts('frcsr', 'frrm', 'frflags') + print_insts('fscsr', 'fsrm', 'fsflags') print_footer(0) print_header('r','r4','i','s') @@ -555,9 +596,21 @@ def print_chisel_insn(name): print s + "\")" def make_chisel(): - print ' /* Automatically generated by parse-opcodes */' + print '/* Automatically generated by parse-opcodes */' + print 'object Instructions {' for name in namelist: print_chisel_insn(name) + print '}' + print 'object CSRs {' + for num, name in csrs: + print ' val %s = %s' % (name, hex(num)) + print ' val all = {' + print ' val res = collection.mutable.ArrayBuffer[Int]()' + for num, name in csrs: + print ' res += %s' % (name) + print ' res.toArray' + print ' }' + print '}' for line in sys.stdin: line = line.partition('#') @@ -568,6 +621,9 @@ for line in sys.stdin: assert len(tokens) >= 2 name = tokens[0] + pseudo = name[0] == '@' + if pseudo: + name = name[1:] mymatch = 0 mymask = 0 cover = 0 @@ -610,9 +666,10 @@ for line in sys.stdin: if not (cover == 0xFFFFFFFF or cover == 0xFFFF): sys.exit("%s: not all bits are covered" % name) - for name2,match2 in match.iteritems(): - if (match2 & mymask) == mymatch: - sys.exit("%s and %s overlap" % (name,name2)) + if not pseudo: + for name2,match2 in match.iteritems(): + if (match2 & mymask) == mymatch: + sys.exit("%s and %s overlap" % (name,name2)) mask[name] = mymask match[name] = mymatch @@ -622,9 +679,7 @@ if sys.argv[1] == '-tex': make_latex_table() elif sys.argv[1] == '-chisel': make_chisel() -elif sys.argv[1] == '-disasm': - make_disasm_table(match,mask) -elif sys.argv[1] == '-isasim': - make_isasim(match,mask) +elif sys.argv[1] == '-c': + make_c(match,mask) else: assert 0 |