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#
# Copyright (C) 2005 Jakub Jermar
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#
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/**
 * This file contains two trap tables.
 * First, trap_table, is the one wich contains handlers implemented by
 * kernel. During initialization, these handlers are copied out to
 * the second trap table, trap_table_save, and the first table is
 * overwritten with copy of OFW's own trap table. The copy is then patched
 * from the trap_table_save.
 *
 * This arrangement is beneficial because kernel handlers stay on their
 * link-time addresses which is good for debugging.
 */
 
.text

#include <arch/trap/trap_table.h>
#include <arch/trap/regwin.h>

#define TABLE_SIZE  TRAP_TABLE_SIZE
#define ENTRY_SIZE  TRAP_TABLE_ENTRY_SIZE

/*
 * Kernel trap table.
 */
.align TABLE_SIZE
.global trap_table
trap_table:

/* TT = 0x24, TL = 0 *, clean_window handler */
.org trap_table + TT_CLEAN_WINDOW*ENTRY_SIZE
.global clean_window_handler
clean_window_handler:
    CLEAN_WINDOW_HANDLER

/* TT = 0x80, TL = 0 *, spill_0_normal handler */
.org trap_table + TT_SPILL_0_NORMAL*ENTRY_SIZE
.global spill_0_normal
spill_0_normal:
    SPILL_NORMAL_HANDLER

/* TT = 0xc0, TL = 0 *, fill_0_normal handler */
.org trap_table + TT_FILL_0_NORMAL*ENTRY_SIZE
fill_0_normal:
    FILL_NORMAL_HANDLER

/*
 * Software traps for TL=0.
 */
.org trap_table + 256*ENTRY_SIZE
tl_0_software_traps:

/* Reserved area. */
.org trap_table + 384*ENTRY_SIZE
.space 128*ENTRY_SIZE, 0

/*
 * Hardware interrupts for TL>0.
 */
.org trap_table + 512*ENTRY_SIZE
tl_non_0_hardware_traps:

/*
 * Register window spill/fill traps for TL>0.
 */
.org trap_table + 640*ENTRY_SIZE
tl_non_0_regwin_traps:

/*
 * Software traps for TL>0.
 */
.org trap_table + 768*ENTRY_SIZE
tl_non_0_software_traps:

/* Reserved area. */
.org trap_table + 896*ENTRY_SIZE
.space 128*ENTRY_SIZE, 0


/*
 * Save trap table.
 */
.global trap_table_save
trap_table_save:
    .space TABLE_SIZE, 0