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2003-10-17 Shrinivas Atre <shrinivasa@KPITCummins.com>

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* h8300/compile.c : Addition of extern variable h8300_normal_mode
        (SP) : Handle normal mode
        (bitfrom) : Use normal mode flag to return suitable value
        (lvalue) : Use normal mode flag to return command line location
        (decode) : Decode instruction correctly for normal mode
        (init_pointers) : Initialise memory correctly for normal mode
        (sim_resume) : Handle cases for normal mode using h8300_normal_mode flag
        (sim_store_register) : Handle 2 byte PC for normal mode
        (sim_fetch_register) : Handle 2 byte PC for normal mode
        (set_h8300h) : Set normal mode flag as per architechture
        (sim_load) : Allocate 64K for normal mode instead of bigger memory
This commit is contained in:
Shrinivas Atre 2003-10-17 12:45:55 +00:00
parent c98a2b49ac
commit 59768597d9
2 changed files with 80 additions and 45 deletions
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13
sim/ChangeLog
View file

@ -1,3 +1,16 @@
2003-10-17 Shrinivas Atre <shrinivasa@KPITCummins.com>
* h8300/compile.c : Addition of extern variable h8300_normal_mode
(SP) : Handle normal mode
(bitfrom) : Use normal mode flag to return suitable value
(lvalue) : Use normal mode flag to return command line location
(decode) : Decode instruction correctly for normal mode
(init_pointers) : Initialise memory correctly for normal mode
(sim_resume) : Handle cases for normal mode using h8300_normal_mode flag
(sim_store_register) : Handle 2 byte PC for normal mode
(sim_fetch_register) : Handle 2 byte PC for normal mode
(set_h8300h) : Set normal mode flag as per architechture
(sim_load) : Allocate 64K for normal mode instead of bigger memory
2003-10-08 Dave Brolley <brolley@redhat.com>
* configure.in: Move frv handling to alphabetically correct placement.

112
sim/h8300/compile.c
View file

@ -53,7 +53,7 @@ static void set_simcache_size (SIM_DESC, int);
#define X(op, size) (op * 4 + size)
#define SP (h8300hmode ? SL : SW)
#define SP (h8300hmode && !h8300_normal_mode ? SL : SW)
#define h8_opcodes ops
#define DEFINE_TABLE
@ -510,6 +510,7 @@ enum { POLL_QUIT_INTERVAL = 0x80000 };
int h8300hmode = 0;
int h8300smode = 0;
int h8300_normal_mode = 0;
int h8300sxmode = 0;
static int memory_size;
@ -539,7 +540,7 @@ bitfrom (int x)
case L_32:
return SL;
case L_P:
return h8300hmode ? SL : SW;
return (h8300hmode && !h8300_normal_mode)? SL : SW;
}
return 0;
}
@ -575,9 +576,9 @@ lvalue (SIM_DESC sd, int x, int rn, unsigned int *val)
static int
cmdline_location()
{
if (h8300smode)
if (h8300smode && !h8300_normal_mode)
return 0xffff00L;
else if (h8300hmode)
else if (h8300hmode && !h8300_normal_mode)
return 0x2ff00L;
else
return 0xff00L;
@ -837,8 +838,10 @@ decode (SIM_DESC sd, int addr, unsigned char *data, decoded_inst *dst)
}
else if ((looking_for & MODE) == VECIND)
{
/* FIXME: Multiplier should be 2 for "normal" mode. */
cst[opnum] = ((data[1] & 0x7f) + 0x80) * 4;
if(h8300_normal_mode)
cst[opnum] = ((data[1] & 0x7f) + 0x80) * 2;
else
cst[opnum] = ((data[1] & 0x7f) + 0x80) * 4;
cst[opnum] += h8_get_vbr (sd); /* Add vector base reg. */
}
else if ((looking_for & SIZE) == L_32)
@ -1774,9 +1777,9 @@ init_pointers (SIM_DESC sd)
littleendian.i = 1;
if (h8300smode)
if (h8300smode && !h8300_normal_mode)
memory_size = H8300S_MSIZE;
else if (h8300hmode)
else if (h8300hmode && !h8300_normal_mode)
memory_size = H8300H_MSIZE;
else
memory_size = H8300_MSIZE;
@ -1950,7 +1953,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
}
oldmask = h8_get_mask (sd);
if (!h8300hmode)
if (!h8300hmode || h8300_normal_mode)
h8_set_mask (sd, 0xffff);
do
{
@ -2790,7 +2793,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
/* Setting char_ptr_size to the sizeof (char *) on the different
architectures. */
if (h8300hmode || h8300smode)
if ((h8300hmode || h8300smode) && !h8300_normal_mode)
{
char_ptr_size = 4;
}
@ -2859,7 +2862,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
for (i = 0; i < no_of_args; i++)
{
/* Saving the argv pointer. */
if (h8300hmode || h8300smode)
if ((h8300hmode || h8300smode) && !h8300_normal_mode)
{
SET_MEMORY_L (argv_ptrs_location, argv_ptrs[i]);
}
@ -2875,7 +2878,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
/* Required by POSIX, Setting 0x0 at the end of the list of argv
pointers. */
if (h8300hmode || h8300smode)
if ((h8300hmode || h8300smode) && !h8300_normal_mode)
{
SET_MEMORY_L (old_sp, 0x0);
}
@ -2914,7 +2917,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
/* Setting filename_ptr to first argument of open, */
/* and trying to get mode. */
if (h8300sxmode || h8300hmode || h8300smode)
if ((h8300sxmode || h8300hmode || h8300smode) && !h8300_normal_mode)
{
filename_ptr = GET_L_REG (0);
mode = GET_MEMORY_L (h8_get_reg (sd, SP_REGNUM) + 4);
@ -2965,8 +2968,8 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
int read_return = 0; /* Return value from callback to
read. */
fd = h8300hmode ? GET_L_REG (0) : GET_W_REG (0);
buf_size = h8300hmode ? GET_L_REG (2) : GET_W_REG (2);
fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0);
buf_size = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (2) : GET_W_REG (2);
char_ptr = (char *) malloc (sizeof (char) * buf_size);
@ -3000,9 +3003,9 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
int write_return; /* Return value from callback to write. */
int i = 0; /* Loop counter */
fd = h8300hmode ? GET_L_REG (0) : GET_W_REG (0);
char_ptr = h8300hmode ? GET_L_REG (1) : GET_W_REG (1);
len = h8300hmode ? GET_L_REG (2) : GET_W_REG (2);
fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0);
char_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1);
len = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (2) : GET_W_REG (2);
/* Allocating space for the characters to be written. */
ptr = (char *) malloc (sizeof (char) * len);
@ -3032,9 +3035,9 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
int origin; /* Origin */
int lseek_return; /* Return value from callback to lseek. */
fd = h8300hmode ? GET_L_REG (0) : GET_W_REG (0);
offset = h8300hmode ? GET_L_REG (1) : GET_W_REG (1);
origin = h8300hmode ? GET_L_REG (2) : GET_W_REG (2);
fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0);
offset = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1);
origin = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (2) : GET_W_REG (2);
/* Callback lseek and return offset. */
lseek_return =
@ -3050,7 +3053,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
int fd; /* File descriptor */
int close_return; /* Return value from callback to close. */
fd = h8300hmode ? GET_L_REG (0) : GET_W_REG (0);
fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0);
/* Callback close and return. */
close_return = sim_callback->close (sim_callback, fd);
@ -3068,10 +3071,10 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
int stat_ptr; /* Pointer to stat record. */
char *temp_stat_ptr; /* Temporary stat_rec pointer. */
fd = h8300hmode ? GET_L_REG (0) : GET_W_REG (0);
fd = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0);
/* Setting stat_ptr to second argument of stat. */
stat_ptr = h8300hmode ? GET_L_REG (1) : GET_W_REG (1);
stat_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1);
/* Callback stat and return. */
fstat_return = sim_callback->fstat (sim_callback, fd, &stat_rec);
@ -3120,7 +3123,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
int i = 0; /* Loop Counter */
/* Setting filename_ptr to first argument of open. */
filename_ptr = h8300hmode ? GET_L_REG (0) : GET_W_REG (0);
filename_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (0) : GET_W_REG (0);
/* Trying to find the length of the filename. */
temp_char = GET_MEMORY_B (h8_get_reg (sd, 0));
@ -3144,7 +3147,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
/* Setting stat_ptr to second argument of stat. */
/* stat_ptr = h8_get_reg (sd, 1); */
stat_ptr = h8300hmode ? GET_L_REG (1) : GET_W_REG (1);
stat_ptr = (h8300hmode && !h8300_normal_mode) ? GET_L_REG (1) : GET_W_REG (1);
/* Callback stat and return. */
stat_return =
@ -3552,7 +3555,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
call:
tmp = h8_get_reg (sd, SP_REGNUM);
if (h8300hmode)
if (h8300hmode && !h8300_normal_mode)
{
tmp -= 4;
SET_MEMORY_L (tmp, code->next_pc);
@ -3584,7 +3587,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
h8_set_exr (sd, GET_MEMORY_L (tmp));
tmp += 4;
}
if (h8300hmode)
if (h8300hmode && !h8300_normal_mode)
{
h8_set_ccr (sd, GET_MEMORY_L (tmp));
tmp += 4;
@ -3607,7 +3610,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
rts:
tmp = h8_get_reg (sd, SP_REGNUM);
if (h8300hmode)
if (h8300hmode && !h8300_normal_mode)
{
pc = GET_MEMORY_L (tmp);
tmp += 4;
@ -3655,16 +3658,26 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
case O (O_TRAPA, SB): /* trapa */
if (fetch (sd, &code->src, &res))
goto end; /* res is vector number. */
tmp = h8_get_reg (sd, SP_REGNUM);
tmp -= 4;
SET_MEMORY_L (tmp, code->next_pc);
tmp -= 4;
SET_MEMORY_L (tmp, h8_get_ccr (sd));
intMaskBit = 1;
BUILDSR (sd);
goto end; /* res is vector number. */
tmp = h8_get_reg (sd, SP_REGNUM);
if(h8300_normal_mode)
{
tmp -= 2;
SET_MEMORY_W (tmp, code->next_pc);
tmp -= 2;
SET_MEMORY_W (tmp, h8_get_ccr (sd));
}
else
{
tmp -= 4;
SET_MEMORY_L (tmp, code->next_pc);
tmp -= 4;
SET_MEMORY_L (tmp, h8_get_ccr (sd));
}
intMaskBit = 1;
BUILDSR (sd);
if (h8300smode)
{
tmp -= 4;
@ -3673,8 +3686,10 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
h8_set_reg (sd, SP_REGNUM, tmp);
/* FIXME: "normal" mode should use 2-byte ptrs. */
pc = GET_MEMORY_L (0x20 + res * 4);
if(h8300_normal_mode)
pc = GET_MEMORY_L (0x10 + res * 2); /* Vector addresses are 0x10,0x12,0x14 and 0x16 */
else
pc = GET_MEMORY_L (0x20 + res * 4);
goto end;
case O (O_BPT, SN):
@ -4703,7 +4718,10 @@ sim_store_register (SIM_DESC sd, int rn, unsigned char *value, int length)
switch (rn)
{
case PC_REGNUM:
h8_set_pc (sd, intval);
if(h8300_normal_mode)
h8_set_pc (sd, shortval); /* PC for Normal mode is 2 bytes */
else
h8_set_pc (sd, intval);
break;
default:
(*sim_callback->printf_filtered) (sim_callback,
@ -4814,7 +4832,8 @@ sim_fetch_register (SIM_DESC sd, int rn, unsigned char *buf, int length)
longreg = 1;
break;
}
if (h8300hmode || longreg)
/* In Normal mode PC is 2 byte, but other registers are 4 byte */
if ((h8300hmode || longreg) && !(rn == PC_REGNUM && h8300_normal_mode))
{
buf[0] = v >> 24;
buf[1] = v >> 16;
@ -4919,6 +4938,9 @@ set_h8300h (unsigned long machine)
if (machine == bfd_mach_h8300h || machine == bfd_mach_h8300hn || h8300smode)
h8300hmode = 1;
if(machine == bfd_mach_h8300hn || machine == bfd_mach_h8300sn || machine == bfd_mach_h8300sxn)
h8300_normal_mode = 1;
}
/* Cover function of sim_state_free to free the cpu buffers as well. */
@ -5054,9 +5076,9 @@ sim_load (SIM_DESC sd, char *prog, bfd *abfd, int from_tty)
switching between H8/300 and H8/300H programs without exiting
gdb. */
if (h8300smode)
if (h8300smode && !h8300_normal_mode)
memory_size = H8300S_MSIZE;
else if (h8300hmode)
else if (h8300hmode && !h8300_normal_mode)
memory_size = H8300H_MSIZE;
else
memory_size = H8300_MSIZE;