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; ### --------------------------------------------------------------- ###
; # #
; # file : lsw000.u #
; # date : Jan 5 1993 #
; # description : functional test for mips #
; # #
; ### --------------------------------------------------------------- ###
; ### ------------------------------------------------------- ###
; # store data, data+1, data+2, ... in successive addresses #
; # then load the stored data in an accumulator #
; ### ------------------------------------------------------- ###
address .equ 0x40000004
data .equ 6976 ; short data
mask .equ 0xffffffff ; short data
loop_iter .equ 3 ; loop iteration number
.org 0x00400000
.start init
init:
loadi r1 , address
addiu r3 , r0 , loop_iter
addiu r2 , r0 , data
write_loop: sw r2, 0(r1 )
addiu r2 , r2 , 1
lui r13 , mask
addiu r16, r0 , mask
or r13 , r13 , r16
addu r3 , r3 , r13
addiu r1 , r1 , 4
bne r3 , r0,write_loop
loadi r1 , address
addu r5 , r0 , r0
addiu r3 , r0 , loop_iter
read_loop: lw r4 , 0(r1 )
nop
addiu r5, r5, data
addu r3 , r3 , r13
bne r3 , r0 ,read_loop
addiu r1 , r1 , 4
loadi r6 , ( 3 * data)
beq r6, r5 , good
nop
j bad
nop
.org 0x004000d0
good: j good
nop
bad: j bad
nop
.end
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