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[/] [t400/] [tags/] [rel_1_1/] [sw/] [verif/] [int/] [lbi/] [test.asm] - Rev 176
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;; *******************************************************************
;; $Id: test.asm,v 1.1 2006-05-31 00:55:32 arniml Exp $
;;
;; Checks interrupt on LBI.
;; LBI is interrupted twice:
;; 1) short, 1 byte instruction
;; 2) long, 2 byte instruction
;;
;; the cpu type is defined on asl's command line
include "int_macros.inc"
org 0x00
clra
;; prepare RAM digits
lbi 0, 3
stii 0x3
lbi 0, 9
stii 0x9
lbi 0, 0 ; default RAM location
int_flag_clear
;; write return instruction identifier to current M
;; ret_instr_030 = 0x01
clra
aisc 0x1
x 0
lei 0x02
jp int_mark_030
org 0x030
int_mark_030:
nop
nop
int_instr_030:
lbi 0, 9 ; short LBI
nop
ret_instr_030:
nop
;; check whether interrupt really occured
int_flag_check
;;
;; prepare next interrupt
;;
int_flag_clear
;; write return instruction identifier to current M
;; ret_instr_0b0 = 0x2
clra
aisc 0x2
x 0
lei 0x02
jmp int_mark_0b0
org 0x0ae
jmp fail
org 0x0b0
int_mark_0b0:
nop
nop
int_instr_0b0:
lbi 0, 3 ; long LBI
nop
ret_instr_0b0:
nop
;; check whether interrupt really occured
int_flag_check
jmp pass
;; *******************************************************************
;; Interrupt routine
;;
org 0x0fd
jmp fail
int_routine:
nop
save_a_m_c
int_flag_set
;; read interrupt location selector
lbi 0, 0
ldd 0, 0
x 0
skmbz 0x0
jp check_sa_030
skmbz 0x1
jmp check_sa_0b0
jmp fail
check_sa_030:
check_sa ret_instr_030
;; check saved contents of 'current M'
;; expect 0x9
lbi 3, 14
clra
aisc 0x9
ske
jmp fail
jmp int_finished
check_sa_0b0:
check_sa ret_instr_0b0
;; check saved contents of 'current M'
;; expect 0x3
lbi 3, 14
clra
aisc 0x3
ske
jmp fail
int_finished:
lbi 0, 0
restore_c_m_a
ret
;;
;; *******************************************************************
org 0x200
include "int_pass_fail.asm"