e576bb2002-10-11Martin Nilsson /* || This file is part of Pike. For copyright information see COPYRIGHT. || Pike is distributed under GPL, LGPL and MPL. See the file COPYING || for more information.
dc35c22002-11-10Henrik Grubbström (Grubba) || $Id: sparc.c,v 1.30 2002/11/10 19:44:37 grubba Exp $
e576bb2002-10-11Martin Nilsson */
1b10db2002-10-08Martin Nilsson 
dd6bca2001-07-20Henrik Grubbström (Grubba) /* * Machine code generator for sparc. * * Henrik Grubbström 20010720 */
01de412002-11-08Henrik Grubbström (Grubba) #include "global.h" #include "svalue.h"
fc31002001-07-24Henrik Grubbström (Grubba) #include "operators.h"
01de412002-11-08Henrik Grubbström (Grubba) #include "object.h"
fc31002001-07-24Henrik Grubbström (Grubba) 
4f43322002-11-05Henrik Grubbström (Grubba) /* * Register definitions */ #define SPARC_REG_G0 0 #define SPARC_REG_G1 1 #define SPARC_REG_G2 2 #define SPARC_REG_G3 3 #define SPARC_REG_G4 4 #define SPARC_REG_G5 5 #define SPARC_REG_G6 6 #define SPARC_REG_G7 7 #define SPARC_REG_O0 8 #define SPARC_REG_O1 9 #define SPARC_REG_O2 10 #define SPARC_REG_O3 11 #define SPARC_REG_O4 12 #define SPARC_REG_O5 13 #define SPARC_REG_O6 14 /* SP */ #define SPARC_REG_O7 15 #define SPARC_REG_L0 16 #define SPARC_REG_L1 17 #define SPARC_REG_L2 18 #define SPARC_REG_L3 19 #define SPARC_REG_L4 20 #define SPARC_REG_L5 21 #define SPARC_REG_L6 22 #define SPARC_REG_L7 23 #define SPARC_REG_I0 24 #define SPARC_REG_I1 25 #define SPARC_REG_I2 26 #define SPARC_REG_I3 27 #define SPARC_REG_I4 28 #define SPARC_REG_I5 29 #define SPARC_REG_I6 30 /* FP */ #define SPARC_REG_I7 31 /* PC */ /*
0dc1b72002-11-06Henrik Grubbström (Grubba)  * ALU operations.
4f43322002-11-05Henrik Grubbström (Grubba)  */ #define SPARC_OP3_AND 0x01 #define SPARC_OP3_ANDcc 0x11 #define SPARC_OP3_ANDN 0x05 #define SPARC_OP3_ANDNcc 0x15 #define SPARC_OP3_OR 0x02 #define SPARC_OP3_ORcc 0x12 #define SPARC_OP3_ORN 0x06 #define SPARC_OP3_ORNcc 0x16 #define SPARC_OP3_XOR 0x03 #define SPARC_OP3_XORcc 0x13 #define SPARC_OP3_XNOR 0x07 #define SPARC_OP3_XNORcc 0x17
0dc1b72002-11-06Henrik Grubbström (Grubba) #define SPARC_OP3_ADD 0x00 #define SPARC_OP3_ADDcc 0x10 #define SPARC_OP3_ADDC 0x08 #define SPARC_OP3_ADDCcc 0x18
f5e8622002-11-07Henrik Grubbström (Grubba) #define SPARC_OP3_SUB 0x04 #define SPARC_OP3_SUBcc 0x14 #define SPARC_OP3_SUBC 0x0c #define SPARC_OP3_SUBCcc 0x1c
327cdd2002-11-07Henrik Grubbström (Grubba) #define SPARC_OP3_SLL 0x25 #define SPARC_OP3_SRL 0x26 #define SPARC_OP3_SRA 0x27 #define SPARC_OP3_RD 0x28
c0a5182002-11-10Henrik Grubbström (Grubba) #define SPARC_OP3_JMPL 0x38
ed16592002-11-09Henrik Grubbström (Grubba) #define SPARC_OP3_RETURN 0x39
f5e8622002-11-07Henrik Grubbström (Grubba) #define SPARC_OP3_SAVE 0x3c
c0a5182002-11-10Henrik Grubbström (Grubba) #define SPARC_OP3_RESTORE 0x3d
4f43322002-11-05Henrik Grubbström (Grubba) 
327cdd2002-11-07Henrik Grubbström (Grubba) #define SPARC_RD_REG_CCR 0x02 #define SPARC_RD_REG_PC 0x05
0dc1b72002-11-06Henrik Grubbström (Grubba) #define SPARC_ALU_OP(OP3, D, S1, S2, I) \
4f43322002-11-05Henrik Grubbström (Grubba)  add_to_program(0x80000000|((D)<<25)|((OP3)<<19)|((S1)<<14)|((I)<<13)| \
f5e8622002-11-07Henrik Grubbström (Grubba)  ((S2)&0x1fff))
4f43322002-11-05Henrik Grubbström (Grubba) 
aaf6d32002-11-08Henrik Grubbström (Grubba) #define SPARC_OP3_LDUW 0x00 #define SPARC_OP3_LDUH 0x02 #define SPARC_OP3_LDSW 0x08 #define SPARC_OP3_LDSH 0x0a #define SPARC_OP3_STW 0x04 #define SPARC_OP3_STH 0x06 #define SPARC_MEM_OP(OP3, D, S1, S2, I) \ add_to_program(0xc0000000|((D)<<25)|((OP3)<<19)|((S1)<<14)|((I)<<13)| \ ((S2)&0x1fff))
0dc1b72002-11-06Henrik Grubbström (Grubba) #define SPARC_OR(D,S1,S2,I) SPARC_ALU_OP(SPARC_OP3_OR, D, S1, S2, I)
4f43322002-11-05Henrik Grubbström (Grubba) 
0dc1b72002-11-06Henrik Grubbström (Grubba) #define SPARC_SRA(D,S1,S2,I) SPARC_ALU_OP(SPARC_OP3_SRA, D, S1, S2, I) #define SPARC_ADD(D,S1,S2,I) SPARC_ALU_OP(SPARC_OP3_ADD, D, S1, S2, I)
aaf6d32002-11-08Henrik Grubbström (Grubba) #define SPARC_SUBcc(D,S1,S2,I) SPARC_ALU_OP(SPARC_OP3_SUBcc, D, S1, S2, I)
4f43322002-11-05Henrik Grubbström (Grubba) 
327cdd2002-11-07Henrik Grubbström (Grubba) #define SPARC_RD(D, RDREG) SPARC_ALU_OP(SPARC_OP3_RD, D, RDREG, 0, 0)
ed16592002-11-09Henrik Grubbström (Grubba) #define SPARC_RETURN(S1, S2, I) SPARC_ALU_OP(SPARC_OP3_RETURN, 0, S1, S2, I)
c0a5182002-11-10Henrik Grubbström (Grubba) #define SPARC_JMPL(D,S1,S2,I) SPARC_ALU_OP(SPARC_OP3_JMPL, D, S1, S2, I) #define SPARC_RET() SPARC_JMPL(SPARC_REG_G0, SPARC_REG_I7, 8, 1) #define SPARC_RESTORE(D,S1,S2,I) SPARC_ALU_OP(SPARC_OP3_RESTORE, D, S1, S2, I)
aaf6d32002-11-08Henrik Grubbström (Grubba) #define SPARC_LDUW(D,S1,S2,I) SPARC_MEM_OP(SPARC_OP3_LDUW, D, S1, S2, I) #define SPARC_LDUH(D,S1,S2,I) SPARC_MEM_OP(SPARC_OP3_LDUH, D, S1, S2, I) #define SPARC_STW(D,S1,S2,I) SPARC_MEM_OP(SPARC_OP3_STW, D, S1, S2, I) #define SPARC_STH(D,S1,S2,I) SPARC_MEM_OP(SPARC_OP3_STH, D, S1, S2, I)
4f43322002-11-05Henrik Grubbström (Grubba) #define SPARC_SETHI(D, VAL) \ add_to_program(0x01000000|((D)<<25)|(((VAL)>>10)&0x3fffff))
aaf6d32002-11-08Henrik Grubbström (Grubba) #define SPARC_BE(DISP22, A) \ add_to_program(0x02800000|((A)<<29)|(((DISP22)>>2)&0x1fffff)) #define SPARC_BNE(DISP22, A) \ add_to_program(0x12800000|((A)<<29)|(((DISP22)>>2)&0x1fffff))
4f43322002-11-05Henrik Grubbström (Grubba) #define SET_REG(REG, X) do { \ INT32 val_ = X; \ INT32 reg_ = REG; \ if ((-4096 <= val_) && (val_ <= 4095)) { \ /* or %g0, val_, reg */ \
40f4622002-11-05Henrik Grubbström (Grubba)  SPARC_OR(reg_, SPARC_REG_G0, val_, 1); \
4f43322002-11-05Henrik Grubbström (Grubba)  } else { \ /* sethi %hi(val_), reg */ \ SPARC_SETHI(reg_, val_); \ if (val_ & 0x3ff) { \ /* or reg, %lo(val_), reg */ \
8d0cf12002-11-05Henrik Grubbström (Grubba)  SPARC_OR(reg_, reg_, val_ & 0x3ff, 1); \
4f43322002-11-05Henrik Grubbström (Grubba)  } \ if (val_ < 0) { \ /* Sign extend. */ \ /* sra reg, %g0, reg */ \ SPARC_SRA(reg_, reg_, SPARC_REG_G0, 0); \ } \ } \ } while(0)
f1d1eb2001-07-20Henrik Grubbström (Grubba) #define ADD_CALL(X, DELAY_OK) do { \
dd6bca2001-07-20Henrik Grubbström (Grubba)  INT32 delta_; \ struct program *p_ = Pike_compiler->new_program; \ INT32 off_ = p_->num_program; \
f1d1eb2001-07-20Henrik Grubbström (Grubba)  /* noop */ \ INT32 delay_ = 0x01000000; \ \ if (DELAY_OK) { \ /* Move the previous opcode to the delay-slot. */ \ delay_ = p_->program[--off_]; \ } else { \ add_to_program(0); /* Placeholder... */ \ } \
dd6bca2001-07-20Henrik Grubbström (Grubba)  /* call X */ \ delta_ = ((PIKE_OPCODE_T *)(X)) - (p_->program + off_); \ p_->program[off_] = 0x40000000 | (delta_ & 0x3fffffff); \ add_to_relocations(off_); \
f1d1eb2001-07-20Henrik Grubbström (Grubba)  add_to_program(delay_); \
327cdd2002-11-07Henrik Grubbström (Grubba)  sparc_last_pc = off_; /* Value in %o7. */ \ sparc_codegen_state |= SPARC_CODEGEN_PC_IS_SET; \
0dc1b72002-11-06Henrik Grubbström (Grubba)  } while(0) /* * Register conventions: *
aaf6d32002-11-08Henrik Grubbström (Grubba)  * I0 Scratch *
0dc1b72002-11-06Henrik Grubbström (Grubba)  * I6 Frame pointer * I7 Return address *
aaf6d32002-11-08Henrik Grubbström (Grubba)  * L0 &Pike_interpreter * L1 Pike_fp
0dc1b72002-11-06Henrik Grubbström (Grubba)  * * O6 Stack Pointer * O7 Program Counter * */
aaf6d32002-11-08Henrik Grubbström (Grubba) #define SPARC_REG_PIKE_IP SPARC_REG_L0 #define SPARC_REG_PIKE_FP SPARC_REG_L1 #define SPARC_REG_PIKE_SP SPARC_REG_L2 #define SPARC_REG_PIKE_MARK_SP SPARC_REG_L3
01de412002-11-08Henrik Grubbström (Grubba) #define SPARC_REG_PIKE_OBJ SPARC_REG_L4
0dc1b72002-11-06Henrik Grubbström (Grubba) #define SPARC_REG_SP SPARC_REG_O6 #define SPARC_REG_PC SPARC_REG_O7 /* * Code generator state. */ unsigned INT32 sparc_codegen_state = 0; int sparc_last_pc = 0;
aaf6d32002-11-08Henrik Grubbström (Grubba) #define LOAD_PIKE_INTERPRETER() do { \ if (!(sparc_codegen_state & SPARC_CODEGEN_IP_IS_SET)) { \ SET_REG(SPARC_REG_PIKE_IP, \ ((INT32)(&Pike_interpreter))); \ sparc_codegen_state |= SPARC_CODEGEN_IP_IS_SET; \
0dc1b72002-11-06Henrik Grubbström (Grubba)  } \
dd6bca2001-07-20Henrik Grubbström (Grubba)  } while(0)
aaf6d32002-11-08Henrik Grubbström (Grubba) #define LOAD_PIKE_FP() do { \ if (!(sparc_codegen_state & SPARC_CODEGEN_FP_IS_SET)) { \ LOAD_PIKE_INTERPRETER(); \ /* lduw [ %ip, %offset(Pike_interpreter, frame_pointer) ], %l1 */ \ SPARC_LDUW(SPARC_REG_PIKE_FP, SPARC_REG_PIKE_IP, \ OFFSETOF(Pike_interpreter, frame_pointer), 1); \ sparc_codegen_state |= SPARC_CODEGEN_FP_IS_SET; \ } \ } while(0) #define LOAD_PIKE_SP() do { \ if (!(sparc_codegen_state & SPARC_CODEGEN_SP_IS_SET)) { \ LOAD_PIKE_INTERPRETER(); \ /* lduw [ %ip, %offset(Pike_interpreter, stack_pointer) ], %l2 */ \ SPARC_LDUW(SPARC_REG_PIKE_SP, SPARC_REG_PIKE_IP, \ OFFSETOF(Pike_interpreter, stack_pointer), 1); \ sparc_codegen_state |= SPARC_CODEGEN_SP_IS_SET; \ } \ } while(0) #define LOAD_PIKE_MARK_SP() do { \ if (!(sparc_codegen_state & SPARC_CODEGEN_MARK_SP_IS_SET)) { \ LOAD_PIKE_INTERPRETER(); \ /* lduw [ %ip, %offset(Pike_interpreter, mark_stack_pointer) ], %l2 */ \ SPARC_LDUW(SPARC_REG_PIKE_MARK_SP, SPARC_REG_PIKE_IP, \ OFFSETOF(Pike_interpreter, mark_stack_pointer), 1); \ sparc_codegen_state |= SPARC_CODEGEN_MARK_SP_IS_SET; \ } \ } while(0) #define SPARC_FLUSH_UNSTORED() do { \ if (sparc_codegen_state & SPARC_CODEGEN_MARK_SP_NEEDS_STORE) { \ /* stw %pike_mark_sp, [ %ip, %offset(Pike_interpreter, mark_stack_pointer) ] */ \ SPARC_STW(SPARC_REG_PIKE_MARK_SP, SPARC_REG_PIKE_IP, \ OFFSETOF(Pike_interpreter, mark_stack_pointer), 1); \ sparc_codegen_state &= ~SPARC_CODEGEN_MARK_SP_NEEDS_STORE; \ } \ if (sparc_codegen_state & SPARC_CODEGEN_SP_NEEDS_STORE) { \ /* stw %pike_sp, [ %ip, %offset(Pike_interpreter, stack_pointer) ] */ \ SPARC_STW(SPARC_REG_PIKE_SP, SPARC_REG_PIKE_IP, \ OFFSETOF(Pike_interpreter, stack_pointer), 1); \ sparc_codegen_state &= ~SPARC_CODEGEN_SP_NEEDS_STORE; \ } \ } while(0) #define SPARC_UNLOAD_CACHED() \ (sparc_codegen_state &= ~(SPARC_CODEGEN_FP_IS_SET| \ SPARC_CODEGEN_SP_IS_SET| \ SPARC_CODEGEN_MARK_SP_IS_SET))
ebba5c2002-11-07Henrik Grubbström (Grubba) 
a970e52002-11-08Henrik Grubbström (Grubba) void sparc_flush_codegen_state(void) { SPARC_FLUSH_UNSTORED(); sparc_codegen_state = 0; } #define ADJUST_PIKE_PC(NEW_PC) do { \ sparc_last_pc = NEW_PC; \ sparc_codegen_state |= SPARC_CODEGEN_PC_IS_SET; \ } while(0)
4f43322002-11-05Henrik Grubbström (Grubba) /* * Allocate a stack frame. * * Note that the prologue size must be constant. */ void sparc_ins_entry(void) { /* save %sp, -112, %sp */
0dc1b72002-11-06Henrik Grubbström (Grubba)  add_to_program(0x81e02000|(SPARC_REG_SP<<25)| (SPARC_REG_SP<<14)|((-112)&0x1fff));
b3618b2002-11-06Henrik Grubbström (Grubba)  FLUSH_CODE_GENERATOR_STATE();
4f43322002-11-05Henrik Grubbström (Grubba) }
8d0cf12002-11-05Henrik Grubbström (Grubba) /* Update Pike_fp->pc */
4f43322002-11-05Henrik Grubbström (Grubba) void sparc_update_pc(void) {
ed16592002-11-09Henrik Grubbström (Grubba)  LOAD_PIKE_FP();
327cdd2002-11-07Henrik Grubbström (Grubba)  /* rd %pc, %i0 */ SPARC_RD(SPARC_REG_I0, SPARC_RD_REG_PC); /* stw %pc, [ %pike_fp + pc ] */
aaf6d32002-11-08Henrik Grubbström (Grubba)  SPARC_STW(SPARC_REG_I0, SPARC_REG_PIKE_FP, OFFSETOF(pike_frame, pc), 1);
4f43322002-11-05Henrik Grubbström (Grubba) }
aaf6d32002-11-08Henrik Grubbström (Grubba) /* * Opcode implementations. */
4f43322002-11-05Henrik Grubbström (Grubba) 
aaf6d32002-11-08Henrik Grubbström (Grubba) #define MAKE_TYPE_WORD(TYPE, SUB_TYPE) (((TYPE) << 16)|(SUB_TYPE)) static void sparc_incr_mark_sp(int delta) { LOAD_PIKE_MARK_SP(); /* add %pike_mark_sp, %pike_mark_sp, 4 * delta */ SPARC_ADD(SPARC_REG_PIKE_MARK_SP, SPARC_REG_PIKE_MARK_SP, 4*delta, 1); sparc_codegen_state |= SPARC_CODEGEN_MARK_SP_NEEDS_STORE; } static void sparc_mark(int off) { LOAD_PIKE_SP(); LOAD_PIKE_MARK_SP(); if (off) { off *= sizeof(struct svalue); if ((-4096 <= off) && (off < 4096)) { /* add %i0, %pike_sp, off */ SPARC_ADD(SPARC_REG_I0, SPARC_REG_PIKE_SP, off, 1); } else { SET_REG(SPARC_REG_I0, off); /* add %i0, %pike_sp, %i0 */ SPARC_ADD(SPARC_REG_I0, SPARC_REG_PIKE_SP, SPARC_REG_I0, 0); } /* stw %i0, [ %pike_mark_sp, %g0 ] */ SPARC_STW(SPARC_REG_I0, SPARC_REG_PIKE_MARK_SP, SPARC_REG_G0, 0); } else { /* stw %pike_sp, [ %pike_mark_sp, %g0 ] */ SPARC_STW(SPARC_REG_PIKE_SP, SPARC_REG_PIKE_MARK_SP, SPARC_REG_G0, 0); } sparc_incr_mark_sp(1); } static void sparc_push_int(INT32 x, int sub_type) { INT32 type_word = MAKE_TYPE_WORD(PIKE_T_INT, sub_type); LOAD_PIKE_SP(); if (sizeof(struct svalue) > 8) { size_t e; for (e = 4; e < sizeof(struct svalue); e += 4) { if (e == OFFSETOF(svalue, u.integer)) continue; /* stw %g0, [ %pike_sp, e ] */ SPARC_STW(SPARC_REG_G0, SPARC_REG_PIKE_SP, e, 1); } } if (x) { SET_REG(SPARC_REG_I1, x); SPARC_STW(SPARC_REG_I1, SPARC_REG_PIKE_SP, OFFSETOF(svalue, u.integer), 1); } else { SPARC_STW(SPARC_REG_G0, SPARC_REG_PIKE_SP, OFFSETOF(svalue, u.integer), 1); } if (x != type_word) {
01de412002-11-08Henrik Grubbström (Grubba)  SET_REG(SPARC_REG_I1, type_word);
aaf6d32002-11-08Henrik Grubbström (Grubba)  } /* This is safe since type_word is never zero. */
01de412002-11-08Henrik Grubbström (Grubba)  /* stw %i1, [ %pike_sp ] */ SPARC_STW(SPARC_REG_I1, SPARC_REG_PIKE_SP, 0, 1);
aaf6d32002-11-08Henrik Grubbström (Grubba)  /* add %pike_sp, %pike_sp, sizeof(struct svalue) */ SPARC_ADD(SPARC_REG_PIKE_SP, SPARC_REG_PIKE_SP, sizeof(struct svalue), 1); sparc_codegen_state |= SPARC_CODEGEN_SP_NEEDS_STORE; } static void sparc_clear_string_subtype(void) { LOAD_PIKE_SP(); /* lduh [ %pike_sp, %g0 ], %i0 */ SPARC_LDUH(SPARC_REG_I0, SPARC_REG_PIKE_SP, OFFSETOF(svalue, type), 1); /* subcc %g0, %i0, 8 */ SPARC_SUBcc(SPARC_REG_G0, SPARC_REG_I0, PIKE_T_INT, 1); /* be,a .+8 */ SPARC_BE(8, 1); /* sth %g0, [ %pike_sp, 2 ] */ SPARC_STH(SPARC_REG_G0, SPARC_REG_PIKE_SP, OFFSETOF(svalue, subtype), 1); }
01de412002-11-08Henrik Grubbström (Grubba) static void sparc_push_lfun(unsigned int no) { LOAD_PIKE_FP(); LOAD_PIKE_SP(); /* lduw [ %pike_fp, %offset(pike_frame, current_object) ], %pike_obj */ SPARC_LDUW(SPARC_REG_PIKE_OBJ, SPARC_REG_PIKE_FP, OFFSETOF(pike_frame, current_object), 1); /* stw %pike_obj, [ %pike_sp, %offset(svalue, u.object) ] */ SPARC_STW(SPARC_REG_PIKE_OBJ, SPARC_REG_PIKE_SP, OFFSETOF(svalue, u.object), 1); /* lduw [ %pike_obj, %offset(object, refs) ], %i0 */ SPARC_LDUW(SPARC_REG_I0, SPARC_REG_PIKE_OBJ, OFFSETOF(object, refs), 1); /* add %i0, 1, %i0 */ SPARC_ADD(SPARC_REG_I0, SPARC_REG_I0, 1, 1); /* stw %i0, [ %pike_obj, %offset(object, refs) ] */ SPARC_STW(SPARC_REG_I0, SPARC_REG_PIKE_OBJ, OFFSETOF(object, refs), 1); /* lduh [ %pike_fp, %offset(pike_frame, context.identifier_level ], %i1 */ SPARC_LDUH(SPARC_REG_I1, SPARC_REG_PIKE_FP, OFFSETOF(pike_frame, context.identifier_level), 1); SET_REG(SPARC_REG_I2, (no & 0xffff) | (PIKE_T_FUNCTION << 16)); /* add %i1, %i2, %i1 */ SPARC_ADD(SPARC_REG_I1, SPARC_REG_I1, SPARC_REG_I2, 0); /* stw %i1, [ %pike_sp, %g0 ] */ SPARC_STW(SPARC_REG_I1, SPARC_REG_PIKE_SP, SPARC_REG_G0, 0); /* add %pike_sp, sizeof(struct svalue), %pike_sp */ SPARC_ADD(SPARC_REG_PIKE_SP, SPARC_REG_PIKE_SP, sizeof(struct svalue), 1); sparc_codegen_state |= SPARC_CODEGEN_SP_NEEDS_STORE; } void sparc_local_lvalue(unsigned int no) { LOAD_PIKE_SP(); LOAD_PIKE_FP(); SET_REG(SPARC_REG_I0, T_LVALUE); /* sth %i0, [ %pike_sp, %g0 ] */ SPARC_STH(SPARC_REG_I0, SPARC_REG_PIKE_SP, SPARC_REG_G0, 0); SET_REG(SPARC_REG_I0, T_VOID);
ed16592002-11-09Henrik Grubbström (Grubba)  no *= sizeof(struct svalue); if (no < 4096) { /* lduw [ %pike_fp, %offset(pike_frame, locals) ], %i2 */ SPARC_LDUW(SPARC_REG_I2, SPARC_REG_PIKE_FP, OFFSETOF(pike_frame, locals), 1); /* add %i2, no * sizeof(struct svalue), %i2 */ SPARC_ADD(SPARC_REG_I2, SPARC_REG_I2, no, 1); } else { SET_REG(SPARC_REG_I1, no); /* lduw [ %pike_fp, %offset(pike_frame, locals) ], %i2 */ SPARC_LDUW(SPARC_REG_I2, SPARC_REG_PIKE_FP, OFFSETOF(pike_frame, locals), 1); /* add %i2, %i1, %i2 */ SPARC_ADD(SPARC_REG_I2, SPARC_REG_I2, SPARC_REG_I1, 0); }
01de412002-11-08Henrik Grubbström (Grubba)  /* stw %i2, [ %pike_sp, %offset(svalue, u.lval) ] */ SPARC_STW(SPARC_REG_I2, SPARC_REG_PIKE_SP, OFFSETOF(svalue, u.lval), 1); /* add %pike_sp, sizeof(struct svalue) * 2, %pike_sp */ SPARC_ADD(SPARC_REG_PIKE_SP, SPARC_REG_PIKE_SP, sizeof(struct svalue)*2, 1); /* sth %i0, [ %pike_sp , -sizeof(struct svalue) ] */ SPARC_STH(SPARC_REG_I0, SPARC_REG_PIKE_SP, -sizeof(struct svalue), 1); sparc_codegen_state |= SPARC_CODEGEN_SP_NEEDS_STORE; }
ed16592002-11-09Henrik Grubbström (Grubba) void sparc_escape_catch(void) { LOAD_PIKE_FP(); SPARC_FLUSH_UNSTORED(); /* rd %pc, %i0 */ SPARC_RD(SPARC_REG_I0, SPARC_RD_REG_PC);
dc35c22002-11-10Henrik Grubbström (Grubba) #if 0
ed16592002-11-09Henrik Grubbström (Grubba)  /* add %i0, 20, %i0 */ SPARC_ADD(SPARC_REG_I0, SPARC_REG_I0, 20, 1);
dc35c22002-11-10Henrik Grubbström (Grubba) #else /* !0 */ /* add %i0, 24, %i0 */ SPARC_ADD(SPARC_REG_I0, SPARC_REG_I0, 24, 1); #endif /* 0 */
ed16592002-11-09Henrik Grubbström (Grubba)  /* stw %i0, [ %pike_fp, %offset(pike_frame, pc) ] */ SPARC_STW(SPARC_REG_I0, SPARC_REG_PIKE_FP, OFFSETOF(pike_frame, pc), 1);
c0a5182002-11-10Henrik Grubbström (Grubba) #if 0 /* The following code is Sparc V9 only code. */
ed16592002-11-09Henrik Grubbström (Grubba)  /* return %i7 + 8 */ SPARC_RETURN(SPARC_REG_I7, 8, 1); /* or %g0, -2, %o0 */ SPARC_OR(SPARC_REG_O0, SPARC_REG_G0, -2, 1);
c0a5182002-11-10Henrik Grubbström (Grubba) #else /* ! 0 */ /* Sparc V7 & V8 code. */ /* or %g0, -2, %i0 */ SPARC_OR(SPARC_REG_I0, SPARC_REG_G0, -2, 1); /* ret */ SPARC_RET(); /* restore */ SPARC_RESTORE(SPARC_REG_G0, SPARC_REG_G0, SPARC_REG_G0, 0); #endif /* 0 */
ed16592002-11-09Henrik Grubbström (Grubba)  SPARC_UNLOAD_CACHED(); }
aaf6d32002-11-08Henrik Grubbström (Grubba) /* * */
4f43322002-11-05Henrik Grubbström (Grubba) 
01de412002-11-08Henrik Grubbström (Grubba) static void low_ins_call(void *addr, int delay_ok) { SPARC_FLUSH_UNSTORED(); { static int last_prog_id=-1; static size_t last_num_linenumbers=(size_t)~0; if(last_prog_id != Pike_compiler->new_program->id || last_num_linenumbers != Pike_compiler->new_program->num_linenumbers) { last_prog_id=Pike_compiler->new_program->id; last_num_linenumbers = Pike_compiler->new_program->num_linenumbers; LOAD_PIKE_FP(); /* Note: We fill the delay slot with the following opcode. * This works since the new %o7 is available immediately. * (Sparc Architecture Manual V9 p149.) */ /* stw %o7, [ %pike_fp, %offsetof(pike_frame, pc) ] */ add_to_program(0xc0202000|(SPARC_REG_O7<<25)|(SPARC_REG_PIKE_FP<<14)| OFFSETOF(pike_frame, pc)); delay_ok = 1; } } ADD_CALL(addr, delay_ok); /* This is probably only needed for some instructions, but... */ SPARC_UNLOAD_CACHED(); }
f1d1eb2001-07-20Henrik Grubbström (Grubba) static void low_ins_f_byte(unsigned int b, int delay_ok)
dd6bca2001-07-20Henrik Grubbström (Grubba) {
11ed4b2001-07-24Henrik Grubbström (Grubba)  void *addr;
fc31002001-07-24Henrik Grubbström (Grubba) 
dd6bca2001-07-20Henrik Grubbström (Grubba) #ifdef PIKE_DEBUG if(store_linenumbers && b<F_MAX_OPCODE) ADD_COMPILED(b); #endif /* PIKE_DEBUG */ b-=F_OFFSET; #ifdef PIKE_DEBUG if(b>255) Pike_error("Instruction too big %d\n",b); #endif
11ed4b2001-07-24Henrik Grubbström (Grubba)  addr = instrs[b].address;
9a928d2002-05-10Martin Stjernholm #ifdef PIKE_DEBUG if (d_flag < 3) #endif
fc31002001-07-24Henrik Grubbström (Grubba)  /* This is not very pretty */ switch(b) {
aaf6d32002-11-08Henrik Grubbström (Grubba)  case F_MARK2 - F_OFFSET: sparc_mark(0); /* FALL_THROUGH */ case F_SYNCH_MARK - F_OFFSET: case F_MARK - F_OFFSET: sparc_mark(0); return;
c0a5182002-11-10Henrik Grubbström (Grubba) 
aaf6d32002-11-08Henrik Grubbström (Grubba)  case F_POP_MARK - F_OFFSET: sparc_incr_mark_sp(-1); return; case F_UNDEFINED - F_OFFSET: sparc_push_int(0, 1); return;
c0a5182002-11-10Henrik Grubbström (Grubba) 
aaf6d32002-11-08Henrik Grubbström (Grubba)  case F_MARK_AND_CONST0 - F_OFFSET: sparc_mark(0);
c0a5182002-11-10Henrik Grubbström (Grubba)  /* FALL_THROUGH */ case F_CONST0 - F_OFFSET:
aaf6d32002-11-08Henrik Grubbström (Grubba)  sparc_push_int(0, 0); return;
c0a5182002-11-10Henrik Grubbström (Grubba) 
aaf6d32002-11-08Henrik Grubbström (Grubba)  case F_MARK_AND_CONST1 - F_OFFSET: sparc_mark(0);
c0a5182002-11-10Henrik Grubbström (Grubba)  /* FALL_THROUGH */ case F_CONST1 - F_OFFSET:
aaf6d32002-11-08Henrik Grubbström (Grubba)  sparc_push_int(1, 0); return;
c0a5182002-11-10Henrik Grubbström (Grubba) 
aaf6d32002-11-08Henrik Grubbström (Grubba)  case F_CONST_1 - F_OFFSET: sparc_push_int(-1, 0); return; case F_BIGNUM - F_OFFSET: sparc_push_int(0x7fffffff, 0); return;
01de412002-11-08Henrik Grubbström (Grubba) 
ed16592002-11-09Henrik Grubbström (Grubba)  case F_EXIT_CATCH - F_OFFSET: sparc_push_int(0, 1); /* FALL_THROUGH */ case F_ESCAPE_CATCH - F_OFFSET: sparc_escape_catch(); return;
01de412002-11-08Henrik Grubbström (Grubba) #define F_ALIAS(F_FUN, O_FUN) \ case F_FUN - F_OFFSET: \ addr = (void *)O_FUN; \ break
fc31002001-07-24Henrik Grubbström (Grubba)  case F_MAKE_ITERATOR - F_OFFSET: { extern void f_Iterator(INT32); SET_REG(SPARC_REG_O0, 1); delay_ok = 1; addr = (void *)f_Iterator; } break;
f64f7e2002-11-08Henrik Grubbström (Grubba)  F_ALIAS(F_COMPL, o_compl); F_ALIAS(F_LSH, o_lsh); F_ALIAS(F_RSH, o_rsh);
fc31002001-07-24Henrik Grubbström (Grubba)  case F_ADD - F_OFFSET: SET_REG(SPARC_REG_O0, 2); delay_ok = 1; addr = (void *)f_add; break;
f64f7e2002-11-08Henrik Grubbström (Grubba)  F_ALIAS(F_SUBTRACT, o_subtract); F_ALIAS(F_AND, o_and); F_ALIAS(F_OR, o_or); F_ALIAS(F_XOR, o_xor); F_ALIAS(F_MULTIPLY, o_multiply); F_ALIAS(F_DIVIDE, o_divide); F_ALIAS(F_MOD, o_mod); F_ALIAS(F_CAST, f_cast); F_ALIAS(F_CAST_TO_INT, o_cast_to_int); F_ALIAS(F_CAST_TO_STRING, o_cast_to_string); F_ALIAS(F_RANGE, o_range);
f5e8622002-11-07Henrik Grubbström (Grubba) 
01de412002-11-08Henrik Grubbström (Grubba)  F_ALIAS(F_SSCANF, o_sscanf);
327cdd2002-11-07Henrik Grubbström (Grubba) 
01de412002-11-08Henrik Grubbström (Grubba)  /* F_ZERO_TYPE? */
f5e8622002-11-07Henrik Grubbström (Grubba)  }
01de412002-11-08Henrik Grubbström (Grubba)  low_ins_call(addr, delay_ok);
f1d1eb2001-07-20Henrik Grubbström (Grubba) } void ins_f_byte(unsigned int opcode) { low_ins_f_byte(opcode, 0);
dd6bca2001-07-20Henrik Grubbström (Grubba) } void ins_f_byte_with_arg(unsigned int a,unsigned INT32 b) {
01de412002-11-08Henrik Grubbström (Grubba)  switch(a) { case F_NUMBER: sparc_push_int(b, 0); return; case F_NEG_NUMBER: sparc_push_int(-b, 0); return; case F_LFUN: sparc_push_lfun(b); return; case F_MARK_X: sparc_mark(-b); return;
ed16592002-11-09Henrik Grubbström (Grubba)  case F_LOCAL_LVALUE: sparc_local_lvalue(b); return;
01de412002-11-08Henrik Grubbström (Grubba)  }
7df3482001-07-21Henrik Grubbström (Grubba)  SET_REG(SPARC_REG_O0, b);
f1d1eb2001-07-20Henrik Grubbström (Grubba)  low_ins_f_byte(a, 1);
dd6bca2001-07-20Henrik Grubbström (Grubba)  return; } void ins_f_byte_with_2_args(unsigned int a, unsigned INT32 c, unsigned INT32 b) {
7df3482001-07-21Henrik Grubbström (Grubba)  SET_REG(SPARC_REG_O0, c); SET_REG(SPARC_REG_O1, b);
f1d1eb2001-07-20Henrik Grubbström (Grubba)  low_ins_f_byte(a, 1);
dd6bca2001-07-20Henrik Grubbström (Grubba)  return; }
697e0a2001-07-20Henrik Grubbström (Grubba)  #define addstr(s, l) low_my_binary_strcat((s), (l), buf) #define adddata2(s,l) addstr((char *)(s),(l) * sizeof((s)[0])); void sparc_encode_program(struct program *p, struct dynamic_buffer_s *buf) { size_t prev = 0, rel; /* De-relocate the program... */ for (rel = 0; rel < p->num_relocations; rel++) { size_t off = p->relocations[rel]; INT32 opcode; #ifdef PIKE_DEBUG if (off < prev) {
5aad932002-08-15Marcus Comstedt  Pike_fatal("Relocations in bad order!\n");
697e0a2001-07-20Henrik Grubbström (Grubba)  } #endif /* PIKE_DEBUG */ adddata2(p->program + prev, off - prev); #ifdef PIKE_DEBUG if ((p->program[off] & 0xc0000000) != 0x40000000) {
5aad932002-08-15Marcus Comstedt  Pike_fatal("Bad relocation!\n");
697e0a2001-07-20Henrik Grubbström (Grubba)  } #endif /* PIKE_DEBUG */ /* Relocate to being relative to NULL */ opcode = 0x40000000 | ((p->program[off] + (((INT32)(p->program)>>2))) & 0x3fffffff); adddata2(&opcode, 1); prev = off+1; } adddata2(p->program + prev, p->num_program - prev); } void sparc_decode_program(struct program *p) { /* Relocate the program... */ PIKE_OPCODE_T *prog = p->program; INT32 delta = ((INT32)p->program)>>2; size_t rel = p->num_relocations; while (rel--) { #ifdef PIKE_DEBUG if ((prog[p->relocations[rel]] & 0xc0000000) != 0x40000000) { Pike_error("Bad relocation: %d, off:%d, opcode: 0x%08x\n", rel, p->relocations[rel], prog[p->relocations[rel]]); } #endif /* PIKE_DEBUG */ prog[p->relocations[rel]] = 0x40000000 | (((prog[p->relocations[rel]] & 0x3fffffff) - delta) & 0x3fffffff); } }
9d2e2d2001-07-21Henrik Grubbström (Grubba)  /* * Inline machine-code... */ const unsigned INT32 sparc_flush_instruction_cache[] = { /* * On entry: * %o0 : void *ptr * %o1 : size_t nbytes * * cmp %o1, #1 * .l0: * flush %o0+%o1 * bge,a .l0 * subcc %o1, 8, %o1 * retl * or %g0,%g0,%o0 */ /* 1000 0000 1010 0000 0010 0000 0000 0000 */ 0x80a02000|(SPARC_REG_O1<<14)|1, /* 1000 0001 1101 1000 0000 0000 0000 0000 */ 0x81d80000|(SPARC_REG_O0<<14)|(SPARC_REG_O1), /* 0011 0110 1000 0000 0000 0000 0000 0000 */ 0x36800000|((-1)&0x3fffff), /* 1000 0000 1010 0000 0010 0000 0000 0000 */ 0x80a02000|(SPARC_REG_O1<<25)|(SPARC_REG_O1<<14)|8, /* 1000 0001 1100 0000 0010 0000 0000 0000 */ 0x81c02000|(SPARC_REG_O7<<14)|8, /* 1000 0000 0001 0000 0000 0000 0000 0000 */ 0x80100000|(SPARC_REG_O0<<25), };
f5e8622002-11-07Henrik Grubbström (Grubba) 
47451f2002-11-07Henrik Grubbström (Grubba) static void sparc_disass_rd_reg(int reg_no) { switch(reg_no & 0x1f) { case SPARC_RD_REG_CCR: fprintf(stderr, "%%ccr"); break; case SPARC_RD_REG_PC: fprintf(stderr, "%%pc"); break; default: fprintf(stderr, "%%sr(%d)", reg_no & 0x1f); break; } }
f5e8622002-11-07Henrik Grubbström (Grubba) static void sparc_disass_reg(int reg_no) { fprintf(stderr, "%%%c%1x", "goli"[(reg_no>>3)&3], reg_no & 7); } void sparc_disassemble_code(void *addr, size_t bytes) { unsigned INT32 *code = addr; size_t len = (bytes+3)>>2; while(len--) { unsigned INT32 opcode = *code; fprintf(stderr, "%p %08x ", code, opcode); switch(opcode & 0xc0000000) { case 0x00000000: { /* Sethi etc. */ int op2 = (opcode >> 22) & 0x7; switch(op2) { case 4: fprintf(stderr, "sethi %%hi(0x%08x), ", opcode << 10); break; } sparc_disass_reg(opcode>>25); fprintf(stderr, "\n"); } break; case 0x40000000: /* Call */ fprintf(stderr, "call 0x%p\n", ((char *)code) + (opcode << 2)); break; case 0x80000000: { /* ALU operation. */ int op3 = (opcode >> 19) & 0x3f; char buf[16]; char *mnemonic = NULL; if (!(op3 & 0x20)) { switch(op3 & 0xf) { case SPARC_OP3_ADD: mnemonic = "add"; break; /* 0 */ case SPARC_OP3_AND: mnemonic = "and"; break; /* 1 */ case SPARC_OP3_OR: mnemonic = "or"; break; /* 2 */ case SPARC_OP3_XOR: mnemonic = "xor"; break; /* 3 */ case SPARC_OP3_SUB: mnemonic = "sub"; break; /* 4 */ case SPARC_OP3_ANDN: mnemonic = "andn"; break; /* 5 */ case SPARC_OP3_ORN: mnemonic = "orn"; break; /* 6 */ case SPARC_OP3_XNOR: mnemonic = "xnor"; break; /* 7 */ case SPARC_OP3_ADDC: mnemonic = "addc"; break; /* 8 */ case SPARC_OP3_SUBC: mnemonic = "subc"; break; /* c */ default: sprintf(buf, "op3(0x%02x)", op3 & 0xf); mnemonic = buf; break; } if (op3 & 0x10) { fprintf(stderr, "%scc ", mnemonic); } else { fprintf(stderr, "%s ", mnemonic); } } else { switch(op3) { case SPARC_OP3_SLL: mnemonic = "sll"; break; case SPARC_OP3_SRL: mnemonic = "srl"; break; case SPARC_OP3_SRA: mnemonic = "sra"; break;
47451f2002-11-07Henrik Grubbström (Grubba)  case SPARC_OP3_RD: mnemonic = "rd"; break;
c0a5182002-11-10Henrik Grubbström (Grubba)  case SPARC_OP3_JMPL: mnemonic = "jmpl"; break; case SPARC_OP3_RETURN:mnemonic = "return"; break;
f5e8622002-11-07Henrik Grubbström (Grubba)  case SPARC_OP3_SAVE: mnemonic = "save"; break;
c0a5182002-11-10Henrik Grubbström (Grubba)  case SPARC_OP3_RESTORE:mnemonic = "restore"; break;
f5e8622002-11-07Henrik Grubbström (Grubba)  default: sprintf(buf, "op3(0x%02x)", op3); mnemonic = buf; break; } fprintf(stderr, "%s ", mnemonic); }
47451f2002-11-07Henrik Grubbström (Grubba)  if (op3 == SPARC_OP3_RD) { sparc_disass_rd_reg(opcode>>14); fprintf(stderr, ", ");
f5e8622002-11-07Henrik Grubbström (Grubba)  } else {
47451f2002-11-07Henrik Grubbström (Grubba)  sparc_disass_reg(opcode>>14);
f5e8622002-11-07Henrik Grubbström (Grubba)  fprintf(stderr, ", ");
47451f2002-11-07Henrik Grubbström (Grubba)  if (opcode & 0x00002000) { fprintf(stderr, "0x%04x, ", opcode & 0x1fff); } else { sparc_disass_reg(opcode); fprintf(stderr, ", "); }
f5e8622002-11-07Henrik Grubbström (Grubba)  } sparc_disass_reg(opcode >> 25); fprintf(stderr, "\n"); } break; case 0xc0000000: { /* Memory operations. */ int op3 = (opcode >> 19) & 0x3f; char buf[16]; char *mnemonic = NULL; switch(op3) { case 0x00: mnemonic="lduw"; break; case 0x01: mnemonic="ldub"; break; case 0x02: mnemonic="lduh"; break; case 0x03: mnemonic="ldd"; break; case 0x04: mnemonic="stw"; break; case 0x05: mnemonic="stb"; break; case 0x06: mnemonic="sth"; break; case 0x07: mnemonic="std"; break; case 0x08: mnemonic="ldsw"; break; case 0x09: mnemonic="ldsb"; break; case 0x0a: mnemonic="ldsh"; break; case 0x0b: mnemonic="ldx"; break; case 0x0e: mnemonic="stx"; break; default: sprintf(buf, "op3(0x%02x)", op3); mnemonic = buf; break; } if (op3 & 0x04) { /* Store */ fprintf(stderr, "%s ", mnemonic); sparc_disass_reg(opcode >> 25); fprintf(stderr, ", ["); sparc_disass_reg(opcode >> 14); if (opcode & 0x00002000) { fprintf(stderr, ", 0x%04x", opcode & 0x1fff); } else { fprintf(stderr, ", "); sparc_disass_reg(opcode); } fprintf(stderr, "]\n"); } else { /* Load */ fprintf(stderr, "%s [", mnemonic); sparc_disass_reg(opcode >> 14); if (opcode & 0x00002000) { fprintf(stderr, ", 0x%04x", opcode & 0x1fff); } else { fprintf(stderr, ", "); sparc_disass_reg(opcode); } fprintf(stderr, "], "); sparc_disass_reg(opcode >> 25); fprintf(stderr, "\n"); } } break; } code++; } }