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Diffstat (limited to 'sim/m68hc11/interrupts.h')
| -rw-r--r-- | sim/m68hc11/interrupts.h | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/sim/m68hc11/interrupts.h b/sim/m68hc11/interrupts.h deleted file mode 100644 index d29e577..0000000 --- a/sim/m68hc11/interrupts.h +++ /dev/null @@ -1,174 +0,0 @@ -/* interrupts.h -- 68HC11 Interrupts Emulation - Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc. - Written by Stephane Carrez (stcarrez@worldnet.fr) - -This file is part of GDB, GAS, and the GNU binutils. - -GDB, GAS, and the GNU binutils are free software; you can redistribute -them and/or modify them under the terms of the GNU General Public -License as published by the Free Software Foundation; either version -1, or (at your option) any later version. - -GDB, GAS, and the GNU binutils are distributed in the hope that they -will be useful, but WITHOUT ANY WARRANTY; without even the implied -warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See -the GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this file; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#ifndef _M6811_SIM_INTERRUPTS_H -#define _M6811_SIM_INTERRUPTS_H - -/* Definition of 68HC11 interrupts. These enum are used as an index - in the interrupt table. */ -enum M6811_INT -{ - M6811_INT_RESERVED1 = 0, - M6811_INT_RESERVED2, - M6811_INT_RESERVED3, - M6811_INT_RESERVED4, - M6811_INT_RESERVED5, - M6811_INT_RESERVED6, - M6811_INT_RESERVED7, - M6811_INT_RESERVED8, - - M6811_INT_RESERVED9, - M6811_INT_RESERVED10, - M6811_INT_RESERVED11, - - M6811_INT_SCI, - M6811_INT_SPI, - M6811_INT_AINPUT, - M6811_INT_AOVERFLOW, - M6811_INT_TCTN, - - M6811_INT_OUTCMP5, - M6811_INT_OUTCMP4, - M6811_INT_OUTCMP3, - M6811_INT_OUTCMP2, - M6811_INT_OUTCMP1, - - M6811_INT_INCMP3, - M6811_INT_INCMP2, - M6811_INT_INCMP1, - - M6811_INT_RT, - M6811_INT_IRQ, - M6811_INT_XIRQ, - M6811_INT_SWI, - M6811_INT_ILLEGAL, - - M6811_INT_COPRESET, - M6811_INT_COPFAIL, - - M6811_INT_RESET, - M6811_INT_NUMBER -}; - - -/* Structure to describe how to recognize an interrupt in the - 68hc11 IO regs. */ -struct interrupt_def -{ - enum M6811_INT int_number; - unsigned char int_paddr; - unsigned char int_mask; - unsigned char enable_paddr; - unsigned char enabled_mask; -}; - -#define MAX_INT_HISTORY 64 - -/* Structure used to keep track of interrupt history. - This is used to understand in which order interrupts were - raised and when. */ -struct interrupt_history -{ - enum M6811_INT type; - - /* CPU cycle when interrupt handler is called. */ - signed64 taken_cycle; - - /* CPU cycle when the interrupt is first raised by the device. */ - signed64 raised_cycle; -}; - -#define SIM_STOP_WHEN_RAISED 1 -#define SIM_STOP_WHEN_TAKEN 2 - -/* Information and control of pending interrupts. */ -struct interrupt -{ - /* CPU cycle when the interrupt is raised by the device. */ - signed64 cpu_cycle; - - /* Number of times the interrupt was raised. */ - unsigned long raised_count; - - /* Controls whether we must stop the simulator. */ - int stop_mode; -}; - - -/* Management of 68HC11 interrupts: - - We use a table of 'interrupt_def' to describe the interrupts that must be - raised depending on IO register flags (enable and present flags). - - We keep a mask of pending interrupts. This mask is refreshed by - calling 'interrupts_update_pending'. It must be refreshed each time - an IO register is changed. - - 'interrupts_process' must be called after each insn. It has two purposes: - first it maintains a min/max count of CPU cycles between which interrupts - are masked; second it checks for pending interrupts and raise one if - interrupts are enabled. */ -struct interrupts { - struct _sim_cpu *cpu; - - /* Mask of current pending interrupts. */ - unsigned long pending_mask; - - /* Address of vector table. This is set depending on the - 68hc11 init mode. */ - uint16 vectors_addr; - - /* Priority order of interrupts. This is controlled by setting the HPRIO - IO register. */ - enum M6811_INT interrupt_order[M6811_INT_NUMBER]; - struct interrupt interrupts[M6811_INT_NUMBER]; - - /* Simulator statistics to report useful debug information to users. */ - - /* - Max/Min number of CPU cycles executed with interrupts masked. */ - signed64 start_mask_cycle; - signed64 min_mask_cycles; - signed64 max_mask_cycles; - signed64 last_mask_cycles; - - /* - Same for XIRQ. */ - signed64 xirq_start_mask_cycle; - signed64 xirq_min_mask_cycles; - signed64 xirq_max_mask_cycles; - signed64 xirq_last_mask_cycles; - - /* - Total number of interrupts raised. */ - unsigned long nb_interrupts_raised; - - /* Interrupt history to help understand which interrupts - were raised recently and in which order. */ - int history_index; - struct interrupt_history interrupts_history[MAX_INT_HISTORY]; -}; - -extern void interrupts_initialize (SIM_DESC sd, struct _sim_cpu* cpu); -extern void interrupts_reset (struct interrupts* interrupts); -extern void interrupts_update_pending (struct interrupts* interrupts); -extern int interrupts_get_current (struct interrupts* interrupts); -extern int interrupts_process (struct interrupts* interrupts); -extern void interrupts_raise (struct interrupts* interrupts, - enum M6811_INT number); - -extern void interrupts_info (SIM_DESC sd, - struct interrupts* interrupts); - -#endif |