-
- for (i = 0; i < NUM_REGS + NUM_PSEUDO_REGS; i++)
- set_register_cached (i, 0);
-
- if (registers_changed_hook)
- registers_changed_hook ();
-}
-
-/* REGISTERS_FETCHED ()
-
- Indicate that all registers have been fetched, so mark them all valid. */
-
-/* NOTE: cagney/2001-12-04: This function does not set valid on the
- pseudo-register range since pseudo registers are always supplied
- using supply_register(). */
-/* FIXME: cagney/2001-12-04: This function is DEPRECATED. The target
- code was blatting the registers[] array and then calling this.
- Since targets should only be using supply_register() the need for
- this function/hack is eliminated. */
-
-void
-registers_fetched (void)
-{
- int i;
-
- for (i = 0; i < NUM_REGS; i++)
- set_register_cached (i, 1);
- /* Do not assume that the pseudo-regs have also been fetched.
- Fetching all real regs NEVER accounts for pseudo-regs. */
-}
-
-/* read_register_bytes and write_register_bytes are generally a *BAD*
- idea. They are inefficient because they need to check for partial
- updates, which can only be done by scanning through all of the
- registers and seeing if the bytes that are being read/written fall
- inside of an invalid register. [The main reason this is necessary
- is that register sizes can vary, so a simple index won't suffice.]
- It is far better to call read_register_gen and write_register_gen
- if you want to get at the raw register contents, as it only takes a
- regnum as an argument, and therefore can't do a partial register
- update.
-
- Prior to the recent fixes to check for partial updates, both read
- and write_register_bytes always checked to see if any registers
- were stale, and then called target_fetch_registers (-1) to update
- the whole set. This caused really slowed things down for remote
- targets. */
-
-/* Copy INLEN bytes of consecutive data from registers
- starting with the INREGBYTE'th byte of register data
- into memory at MYADDR. */
-
-void
-read_register_bytes (int in_start, char *in_buf, int in_len)
-{
- int in_end = in_start + in_len;
- int regnum;
- char *reg_buf = alloca (MAX_REGISTER_RAW_SIZE);
-
- /* See if we are trying to read bytes from out-of-date registers. If so,
- update just those registers. */
-
- for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++)
- {
- int reg_start;
- int reg_end;
- int reg_len;
- int start;
- int end;
- int byte;
-
- reg_start = REGISTER_BYTE (regnum);
- reg_len = REGISTER_RAW_SIZE (regnum);
- reg_end = reg_start + reg_len;
-
- if (reg_end <= in_start || in_end <= reg_start)
- /* The range the user wants to read doesn't overlap with regnum. */
- continue;
-
- if (REGISTER_NAME (regnum) != NULL && *REGISTER_NAME (regnum) != '\0')
- /* Force the cache to fetch the entire register. */
- read_register_gen (regnum, reg_buf);
- else
- /* Legacy note: even though this register is ``invalid'' we
- still need to return something. It would appear that some
- code relies on apparent gaps in the register array also
- being returned. */
- /* FIXME: cagney/2001-08-18: This is just silly. It defeats
- the entire register read/write flow of control. Must
- resist temptation to return 0xdeadbeef. */
- memcpy (reg_buf, registers + reg_start, reg_len);
-
- /* Legacy note: This function, for some reason, allows a NULL
- input buffer. If the buffer is NULL, the registers are still
- fetched, just the final transfer is skipped. */
- if (in_buf == NULL)
- continue;
-
- /* start = max (reg_start, in_start) */
- if (reg_start > in_start)
- start = reg_start;
- else
- start = in_start;
-
- /* end = min (reg_end, in_end) */
- if (reg_end < in_end)
- end = reg_end;
- else
- end = in_end;
-
- /* Transfer just the bytes common to both IN_BUF and REG_BUF */
- for (byte = start; byte < end; byte++)
- {
- in_buf[byte - in_start] = reg_buf[byte - reg_start];
- }
- }