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Rev 1122 Rev 1126
Line 249... Line 249...
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	ori $t0, $t0, 0x1           # Set IE
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	ori $t0, $t0, 0x1           # Set IE
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	sw $t2,SS_STATUS($sp)
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	sw $t2,SS_STATUS($sp)
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	mtc0 $t0, $status
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	mtc0 $t0, $status
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- 
 
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	# CALL Syscall handler
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	jal syscall_handler
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	jal syscall_handler
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	sw $v0, SS_ARG4($sp)        # save v0 - arg4 to stack
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	sw $v0, SS_ARG4($sp)        # save v0 - arg4 to stack
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	# restore epc+4
 - 
 
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	lw $t0,SS_EPC($sp)
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	addi $t0, $t0, 4
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	mtc0 $t0, $epc
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- 
 
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	# restore status
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	# restore status
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	mfc0 $t0, $status
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	mfc0 $t0, $status
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	lw $t1,SS_STATUS($sp)
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	lw $t1,SS_STATUS($sp)
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- 
 
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	# Change back to EXL=1(from last exception), otherwise
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	# an interrupt could rewrite the CP0-EPC
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	li $t2, ~REG_SAVE_MASK      # Mask UM,EXL,ERL,IE
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	li $t2, ~REG_SAVE_MASK      # Mask UM,EXL,ERL,IE
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	and $t0, $t0, $t2
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	and $t0, $t0, $t2
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	or $t0, $t0, $t1            # Copy UM,EXL,ERL,IE from saved status
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	or $t0, $t0, $t1            # Copy UM,EXL,ERL,IE from saved status
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	mtc0 $t0, $status
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	mtc0 $t0, $status
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- 
 
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	# restore epc+4
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	lw $t0,SS_EPC($sp)
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	addi $t0, $t0, 4
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	mtc0 $t0, $epc
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	lw $sp,SS_SP($sp) # restore sp
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	lw $sp,SS_SP($sp) # restore sp
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	eret
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	eret
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tlb_refill_handler:
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tlb_refill_handler: