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      1  1.1  christos # mach: all
      2  1.1  christos # output:
      3  1.1  christos # sim: --environment operating
      4  1.1  christos # as: -W
      5  1.1  christos 
      6  1.1  christos .include "t-macros.i"
      7  1.1  christos 
      8  1.1  christos 	start
      9  1.1  christos 
     10  1.1  christos 	PSW_BITS = PSW_DM
     11  1.1  christos 
     12  1.1  christos ;;; Blat our DMAP registers so that they point at on-chip imem
     13  1.1  christos 
     14  1.1  christos 	ldi r2, MAP_INSN | 0xf
     15  1.1  christos 	st r2, @(DMAP_REG,r0)
     16  1.1  christos 	ldi r2, MAP_INSN
     17  1.1  christos 	st r2, @(IMAP1_REG,r0)
     18  1.1  christos 
     19  1.1  christos ;;; Patch the interrupt vector's dbt entry with a jmp to success
     20  1.1  christos 
     21  1.1  christos 	ldi r4, #trap
     22  1.1  christos 	ldi r5, (VEC_DBT & DMAP_MASK) + DMAP_BASE
     23  1.1  christos 	ld2w r2, @(0,r4)
     24  1.1  christos 	st2w r2, @(0,r5)
     25  1.1  christos 	ld2w r2, @(4,r4)
     26  1.1  christos 	st2w r2, @(4,r5)
     27  1.1  christos 
     28  1.1  christos test_dbt:
     29  1.1  christos 	dbt -> nop
     30  1.1  christos 	exit47
     31  1.1  christos 
     32  1.1  christos success:
     33  1.1  christos 	checkpsw2 1 PSW_BITS
     34  1.1  christos 	exit0
     35  1.1  christos 
     36  1.1  christos 	.data
     37  1.1  christos trap:	ldi r1, success@word
     38  1.1  christos 	jmp r1
     39