From 9909e232c06c030918ea370b6a4a9e55f0767749 Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Tue, 10 Sep 1996 02:51:07 +0000 Subject: * interp.c (hash): Make this an inline function when compiling with GCC. Simplify. * simpos.c: Explicitly include "sys/syscall.h". Remove some #if 0'd code. Enable more emulated syscalls. Checking in more stuff. --- sim/v850/ChangeLog | 11 +++++++++++ sim/v850/interp.c | 42 ++++++++++++++++++++++++++++-------------- sim/v850/simops.c | 34 ++++------------------------------ 3 files changed, 43 insertions(+), 44 deletions(-) (limited to 'sim') diff --git a/sim/v850/ChangeLog b/sim/v850/ChangeLog index fa8e4d7..771b6d8 100644 --- a/sim/v850/ChangeLog +++ b/sim/v850/ChangeLog @@ -1,3 +1,14 @@ +Mon Sep 9 20:50:46 1996 Jeffrey A Law (law@cygnus.com) + + * interp.c (hash): Make this an inline function + when compiling with GCC. Simplify. + * simpos.c: Explicitly include "sys/syscall.h". Remove + some #if 0'd code. Enable more emulated syscalls. + +Wed Sep 4 01:48:55 1996 Jeffrey A Law (law@cygnus.com) + + * interp.c: Fix sign bit handling for add and sub instructions. + Tue Sep 3 10:20:30 1996 Jeffrey A Law (law@cygnus.com) * gencode.c: Fix various indention & style problems. diff --git a/sim/v850/interp.c b/sim/v850/interp.c index bb7aa9b..b9f5a9e 100644 --- a/sim/v850/interp.c +++ b/sim/v850/interp.c @@ -6,6 +6,14 @@ #include "v850_sim.h" +#ifndef INLINE +#ifdef __GNUC__ +#define INLINE inline +#else +#define INLINE +#endif +#endif + #define MEM_SIZE 18 /* V850 memory size is 18 bits XXX */ host_callback *v850_callback; @@ -14,6 +22,16 @@ host_callback *v850_callback; uint32 OP[4]; static struct hash_entry *lookup_hash PARAMS ((uint32 ins)); +static long hash PARAMS ((long)); +static void do_format_1_2 PARAMS ((uint32)); +static void do_format_3 PARAMS ((uint32)); +static void do_format_4 PARAMS ((uint32)); +static void do_format_5 PARAMS ((uint32)); +static void do_format_6 PARAMS ((uint32)); +static void do_format_7 PARAMS ((uint32)); +static void do_format_8 PARAMS ((uint32)); +static void do_format_9_10 PARAMS ((uint32)); +static void init_system PARAMS ((void)); #define MAX_HASH 63 struct hash_entry @@ -26,25 +44,22 @@ struct hash_entry struct hash_entry hash_table[MAX_HASH+1]; -static long + +static INLINE long hash(insn) long insn; { if ((insn & 0x0600) == 0 - || (insn & 0x0700) == 0x0200) + || (insn & 0x0700) == 0x0200 + || (insn & 0x0700) == 0x0600 + || (insn & 0x0780) == 0x0700) return (insn & 0x07e0) >> 5; if ((insn & 0x0700) == 0x0300 || (insn & 0x0700) == 0x0400 || (insn & 0x0700) == 0x0500) return (insn & 0x0780) >> 7; - if ((insn & 0x0700) == 0x0600) - return (insn & 0x07e0) >> 5; - if ((insn & 0x0780) == 0x0700) - return (insn & 0x07e0) >> 5; if ((insn & 0x07c0) == 0x0780) return (insn & 0x07c0) >> 6; - if ((insn & 0x07E0) == 0x07C0) - return (insn & 0x07e0) >> 5; return (insn & 0x07e0) >> 5; } @@ -56,7 +71,7 @@ lookup_hash (ins) h = &hash_table[hash(ins)]; - while ( (ins & h->mask) != h->opcode) + while ((ins & h->mask) != h->opcode) { if (h->next == NULL) { @@ -209,7 +224,7 @@ do_format_8 (insn) } static void -do_formats_9_10 (insn) +do_format_9_10 (insn) uint32 insn; { struct hash_entry *h; @@ -266,7 +281,7 @@ sim_open (args) char *args; { struct simops *s; - struct hash_entry *h, *prev; + struct hash_entry *h; if (args != NULL) printf ("sim_open %s\n",args); @@ -317,10 +332,8 @@ sim_resume (step, siggnal) int step, siggnal; { uint32 inst, opcode; - int i; reg_t oldpc; - if (step) State.exception = SIGTRAP; else @@ -373,7 +386,7 @@ sim_resume (step, siggnal) } else { - do_formats_9_10 (inst); + do_format_9_10 (inst); PC += 4; } } @@ -449,6 +462,7 @@ sim_store_register (rn, memory) State.regs[rn]= *(uint32 *)memory; } +int sim_read (addr, buffer, size) SIM_ADDR addr; unsigned char *buffer; diff --git a/sim/v850/simops.c b/sim/v850/simops.c index 65ee98b..2c47db8 100644 --- a/sim/v850/simops.c +++ b/sim/v850/simops.c @@ -1,6 +1,7 @@ #include #include "v850_sim.h" #include "simops.h" +#include "sys/syscall.h" /* sld.b */ void @@ -466,10 +467,6 @@ OP_1C0 () ov = ((op0 & 0x80000000) == (op1 & 0x80000000) && (op0 & 0x80000000) != (result & 0x80000000)); - /* According to the manual, 's' is inverted if 'ov' - is set. */ - s = ov ? !s : s; - /* Store the result and condition codes. */ State.regs[OP[1]] = result; State.sregs[5] &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV); @@ -498,10 +495,6 @@ OP_240 () ov = ((op0 & 0x80000000) == (op1 & 0x80000000) && (op0 & 0x80000000) != (result & 0x80000000)); - /* According to the manual, 's' is inverted if 'ov' - is set. */ - s = ov ? !s : s; - /* Store the result and condition codes. */ State.regs[OP[1]] = result; State.sregs[5] &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV); @@ -530,10 +523,6 @@ OP_600 () ov = ((op0 & 0x80000000) == (op1 & 0x80000000) && (op0 & 0x80000000) != (result & 0x80000000)); - /* According to the manual, 's' is inverted if 'ov' - is set. */ - s = ov ? !s : s; - /* Store the result and condition codes. */ State.regs[OP[2]] = result; State.sregs[5] &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV); @@ -559,10 +548,6 @@ OP_1A0 () ov = ((op1 & 0x80000000) != (op0 & 0x80000000) && (op1 & 0x80000000) != (result & 0x80000000)); - /* According to the manual, 's' is inverted if 'ov' - is set. */ - s = ov ? !s : s; - /* Store the result and condition codes. */ State.regs[OP[1]] = result; State.sregs[5] &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV); @@ -588,10 +573,6 @@ OP_180 () ov = ((op0 & 0x80000000) != (op1 & 0x80000000) && (op0 & 0x80000000) != (result & 0x80000000)); - /* According to the manual, 's' is inverted if 'ov' - is set. */ - s = ov ? !s : s; - /* Store the result and condition codes. */ State.regs[OP[1]] = result; State.sregs[5] &= ~(PSW_Z | PSW_S | PSW_CY | PSW_OV); @@ -1411,10 +1392,6 @@ OP_10007E0 () if (OP[0] == 0) { -#if 0 - char *fstr = State.regs[2] + State.imem; - printf (fstr,State.regs[3],State.regs[4],State.regs[5]); -#else int save_errno = errno; errno = 0; @@ -1437,7 +1414,6 @@ OP_10007E0 () switch (FUNC) { -#if 0 #if !defined(__GO32__) && !defined(_WIN32) case SYS_fork: RETVAL = fork (); @@ -1449,6 +1425,7 @@ OP_10007E0 () case SYS_execv: RETVAL = execve (MEMPTR (PARM1), (char **) MEMPTR (PARM2), NULL); break; +#if 0 case SYS_pipe: { reg_t buf; @@ -1471,12 +1448,12 @@ OP_10007E0 () } break; #endif +#endif case SYS_read: RETVAL = v850_callback->read (v850_callback, PARM1, MEMPTR (PARM2), PARM3); break; -#endif case SYS_write: if (PARM1 == 1) RETVAL = (int)v850_callback->write_stdout (v850_callback, @@ -1485,7 +1462,6 @@ OP_10007E0 () RETVAL = (int)v850_callback->write (v850_callback, PARM1, MEMPTR (PARM2), PARM3); break; -#if 0 case SYS_lseek: RETVAL = v850_callback->lseek (v850_callback, PARM1, PARM2, PARM3); break; @@ -1495,7 +1471,6 @@ OP_10007E0 () case SYS_open: RETVAL = v850_callback->open (v850_callback, MEMPTR (PARM1), PARM2); break; -#endif case SYS_exit: /* EXIT - caller can look in PARM1 to work out the reason */ @@ -1531,6 +1506,7 @@ OP_10007E0 () SLW (buf+28, host_stat.st_mtime); SLW (buf+36, host_stat.st_ctime); } +#endif break; case SYS_chown: @@ -1544,13 +1520,11 @@ OP_10007E0 () if a prototype is present. */ RETVAL = utime (MEMPTR (PARM1), (void *) MEMPTR (PARM2)); break; -#endif default: abort (); } RETERR = errno; errno = save_errno; -#endif } else if (OP[0] == 1 ) { -- cgit v1.1