src/runtime/alpha-lispregs.h

   1 /*
   2  * This software is part of the SBCL system. See the README file for
   3  * more information.
   4  *
   5  * This software is derived from the CMU CL system, which was
   6  * written at Carnegie Mellon University and released into the
   7  * public domain. The software is in the public domain and is
   8  * provided with absolutely no warranty. See the COPYING and CREDITS
   9  * files for more information.
  10  */
  11
  12 #define NREGS   (32)
  13
  14 #ifdef LANGUAGE_ASSEMBLY
  15 #ifdef linux
  16 #define REG(num) $##num
  17 #else
  18 #define REG(num) $/**/num
  19 #endif /* linux */
  20 #else
  21 #define REG(num) num
  22 #endif
  23                                 /* "traditional" register name and use */
  24                                 /* courtesy of <alpha/regdef.h> */
  25 #define reg_LIP REG(0)          /* v0 */
  26 #define reg_A0 REG(1)           /* t0 - temporary (caller-saved) */
  27 #define reg_A1 REG(2)           /* t1 */
  28 #define reg_A2 REG(3)           /* t2 */
  29 #define reg_A3 REG(4)           /* t3 */
  30 #define reg_A4 REG(5)           /* t4 */
  31 #define reg_A5 REG(6)           /* t5 */
  32 #define reg_L0 REG(7)           /* t6 */
  33 #define reg_NARGS REG(8)        /* t7 */
  34 #define reg_CSP REG(9)          /* s0 - saved (callee-saved) */
  35 #define reg_CFP REG(10)         /* s1 */
  36 #define reg_OCFP REG(11)        /* s2 */
  37 #define reg_BSP REG(12)         /* s3 */
  38 #define reg_LEXENV REG(13)      /* s4 */
  39 #define reg_CODE REG(14)        /* s5 */
  40 #define reg_NULL REG(15)        /* s6 = fp (frame pointer) */
  41 #define reg_NL0 REG(16)         /* a0 - argument (caller-saved) */
  42 #define reg_NL1 REG(17)         /* a1 */
  43 #define reg_NL2 REG(18)         /* a2 */
  44 #define reg_NL3 REG(19)         /* a3 */
  45 #define reg_NL4 REG(20)         /* a4 */
  46 #define reg_NL5 REG(21)         /* a5 */
  47 #define reg_ALLOC REG(22)       /* t8 - more temps (caller-saved) */
  48 #define reg_FDEFN REG(23)       /* t9 */
  49 #define reg_CFUNC REG(24)       /* t10 */
  50 #define reg_NFP REG(25)         /* t11 */
  51 #define reg_LRA REG(26)         /* ra - return address */
  52 #define reg_L1 REG(27)          /* t12, or pv - procedure variable */
  53 #define reg_L2 REG(28)          /* at - assembler temporary */
  54 #define reg_GP REG(29)          /* global pointer */
  55 #define reg_NSP REG(30)         /* sp - stack pointer */
  56 #define reg_ZERO REG(31)        /* reads as zero, writes are noops */
  57
  58
  59 #define REGNAMES \
  60     "LIP", "A0", "A1", "A2", "A3", "A4", "A5", "L0", "NARGS",  \
  61     "CSP", "CFP", "OCFP", "BSP", "LEXENV", "CODE", "NULL", \
  62     "NL0", "NL1", "NL2", "NL3", "NL4", "NL5", "ALLOC", "FDEFN", \
  63     "CFUNC", "NFP", "LRA", "L1", "L2", "GP", "NSP", "ZERO"
  64
  65 #define BOXED_REGISTERS { \
  66     reg_CODE, reg_FDEFN, reg_LEXENV, reg_NARGS, reg_OCFP, reg_LRA, \
  67     reg_A0, reg_A1, reg_A2, reg_A3, reg_A4, reg_A5, \
  68     reg_L0, reg_L1, reg_L2 \
  69 }
  70
  71 #define call_into_lisp_LRA_page 0x10000