src/runtime/ppc64-lispregs.h

   1 #if defined LISP_FEATURE_DARWIN
   2 #if defined __ASSEMBLER__
   3 #define REG(num) r##num
   4 #define FREG(num) f##num
   5 #else
   6 #define REG(num) num
   7 #define FREG(num) num
   8 #endif
   9 #else
  10 #define REG(num) num
  11 #define FREG(num) num
  12 #endif
  13
  14 #define NREGS 32
  15
  16 // We should probably eliminate uses of the wired 0 register and use r0
  17 // as the NIL value. It's not wired to 0 in hardware, and we seldom use it in
  18 // ways that would be sensitive to its unusual nature (effectively a wired 0)
  19 // regarding load/store and some other instructions.
  20 #define reg_ZERO      REG(0)    /* Should always contain 0 in lisp */
  21 #define reg_NSP       REG(1)    /* The number/C stack pointer */
  22 #define reg_TOC       REG(2)    /* ABI-reserved GOT + small data pointer */
  23 #define reg_NL0       REG(3)    /* FF param/result 1 */
  24 #define reg_NL1       REG(4)    /* FF param/result 2 */
  25 #define reg_NL2       REG(5)    /* FF param 3 */
  26 #define reg_NL3       REG(6)
  27 #define reg_NL4       REG(7)
  28 #define reg_NL5       REG(8)
  29 #define reg_NL6       REG(9)    /* Last (7th) FF param */
  30 #define reg_FDEFN     REG(10)   /* was NL7 until recently -dan */
  31 #define reg_NARGS     REG(11)
  32 #define reg_CFUNC     REG(12)   /* Silly to blow a reg on FF-name */
  33 // r13 is as if it does not exist
  34 #define reg_BSP       REG(14)   /* Binding stack pointer */
  35 #define reg_CFP       REG(15)   /* Control/value stack frame pointer */
  36 #define reg_CSP       REG(16)   /* Control/value stack top */
  37 #define reg_CARDTABLE REG(17)   /* GC Card Table address */
  38 #define reg_NULL      REG(18)   /* NIL and globals nearby */
  39 #define reg_CODE      REG(19)   /* Current function object */
  40 #define reg_NFP       REG(20)   /* Lisp may save around FF-call */
  41 #define reg_LEXENV    REG(21)   /* And why burn a register for this ? */
  42 #define reg_OCFP      REG(22)   /* The caller's reg_CFP */
  43 #define reg_LRA       REG(23)   /* Tagged lisp return address */
  44 #define reg_A0        REG(24)   /* First function arg/return value */
  45 #define reg_A1        REG(25)   /* Second. */
  46 #define reg_A2        REG(26)   /*  */
  47 #define reg_A3        REG(27)   /* Last of (only) 4 arg regs */
  48 #define reg_L0        REG(28)   /* Tagged temp regs */
  49 #define reg_L1        REG(29)
  50 #define reg_THREAD    REG(30)   /* TLS block pointer */
  51 #define reg_LIP       REG(31)   /* Lisp Interior Pointer, e.g., locative */