############################################################# #测试j,jal,jr指令，如需要可分开测试，执行正常应该是15个周期 revise date 2015/12/17 tiger ############################################################# .text addi $s1,$zero, 1 #测试j,jal,jr指令，如需要可分开测试，执行正常应该是15个周期 j jmp_next1 addi $s1,$zero, 1 addi $s2,$zero, 2 addi $s3,$zero, 3 jmp_next1: j jmp_next2 addi $s1,$zero, 1 addi $s2,$zero, 2 addi $s3,$zero, 3 jmp_next2: j jmp_next3 addi $s1,$zero, 1 addi $s2,$zero, 2 addi $s3,$zero, 3 jmp_next3: j jmp_next4 addi $s1,$zero, 1 addi $s2,$zero, 2 addi $s3,$zero, 3 jmp_next4:jal jmp_count ###################################### #移位测试 需要支持超addi,sll,add,syscall,srl,sll,sra,beq,j,syscall revise date:2015/12/16 tiger .text addi $s0,$zero,1 #简单移位，循环测试，0号区域显示的是初始值1左移1位重复15次的值，1号区域是累加值 addi $s1,$zero,1 sll $s1, $s1, 31 #逻辑左移31位 $s1=0x80000000 ################################################################### # 逻辑右移测试 # 显示区域依次显示0x80000000 0x20000000 0x08000000 0x02000000 0x00800000 0x00200000 0x00080000 0x00020000 0x00008000 0x00002000 0x00000800 0x00000200 0x00000080 0x00000020 0x00000008 0x00000002 0x00000000 ################################################################### LogicalRightShift: #逻辑右移测试，将最高位1逐位向右右移直至结果为零 add $a0,$0,$s1 #display $s1 #逻辑右移测试，将最高位1逐位向右右移直至结果为零 addi $v0,$0,34 # display hex syscall # we are out of here. srl $s1, $s1, 2 beq $s1, $zero, shift_next1 j LogicalRightShift shift_next1: add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. ################################################################### # 逻辑左移测试 # 显示区域依次显示0x00000004 0x00000010 0x00000040 0x00000100 0x00000400 0x00001000 0x00004000 0x00010000 0x00040000 0x00100000 0x00400000 0x01000000 0x04000000 0x10000000 0x40000000 0x00000000 ################################################################### addi $s1,$zero, 1 # 逻辑左移测试 LogicalLeftShift: #逻辑左移测试，将最低位1逐位向左移直至结果为零 sll $s1, $s1, 2 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. beq $s1, $zero, ArithRightShift j LogicalLeftShift ################################################################### # 算术右移测试 # 显示区域依次显示0x80000000 0xf0000000 0xff000000 0xfff00000 0xffff0000 0xfffff000 0xffffff00 0xfffffff0 0xffffffff ################################################################### ArithRightShift: #算术右移测试，#算术移位测试，80000000算术右移，依次显示为F0000000,FF000000,FFF00000,FFFF0000直至FFFFFFFF addi $s1,$zero,1 # 算术右移测试 sll $s1, $s1, 31 #逻辑左移31位 $s1=0x80000000 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 3 #$s1=0X80000000-->0XF0000000 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 4 #0XF0000000-->0XFF000000 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 4 #0XFF000000-->0XFFF00000 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 4 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 4 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 4 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 4 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. sra $s1, $s1, 4 add $a0,$0,$s1 #display $s1 addi $v0,$0,34 # display hex syscall # we are out of here. ############################################################# #走马灯测试,测试addi,andi,sll,srl,sra,or,ori,nor,syscall LED按走马灯方式来回显示数据 ############################################################# .text addi $s0,$zero,1 sll $s3, $s0, 31 # $s3=0x80000000 sra $s3, $s3, 31 # $s3=0xFFFFFFFF addu $s0,$zero,$zero # $s0=0 addi $s2,$zero,12 addiu $s6,$0,3 #走马灯计数 zmd_loop: addiu $s0, $s0, 1 #计算下一个走马灯的数据 andi $s0, $s0, 15 ####################################### addi $t0,$0,8 addi $t1,$0,1 left: sll $s3, $s3, 4 #走马灯左移 or $s3, $s3, $s0 add $a0,$0,$s3 # display $s3 addi $v0,$0,34 # system call for LED display syscall # display sub $t0,$t0,$t1 bne $t0,$0,left ####################################### addi $s0, $s0, 1 #计算下一个走马灯的数据 addi $t8,$0,15 and $s0, $s0, $t8 sll $s0, $s0, 28 addi $t0,$0,8 addi $t1,$0,1 zmd_right: srl $s3, $s3, 4 #走马灯右移 or $s3, $s3, $s0 addu $a0,$0,$s3 # display $s3 addi $v0,$0,34 # system call for LED display syscall # display sub $t0,$t0,$t1 bne $t0,$0,zmd_right srl $s0, $s0, 28 ####################################### sub $s6,$s6,$t1 beq $s6,$0, exit j zmd_loop exit: add $t0,$0,$0 nor $t0,$t0,$t0 #test nor ori sll $t0,$t0,16 ori $t0,$t0,0xffff addu $a0,$0,$t0 # display $t0 addi $v0,$0,34 # system call for LED display syscall # display ################################################################################# #本程序实现0-15号字单元的降序排序,此程序可在mars mips仿真器中运行 #运行时请将Mars Setting中的Memory Configuration设置为Compact，data at address 0 # ################################################################################# .text sort_init: addi $s0,$0,-1 addi $s1,$0,0 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 sw $s0,0($s1) addi $s0,$s0,1 addi $s1,$s1,4 addi $s0,$s0,1 add $s0,$zero,$zero addi $s1,$zero,60 #排序区间 sort_loop: lw $s3,0($s0) lw $s4,0($s1) slt $t0,$s3,$s4 beq $t0,$0,sort_next #降序排序 sw $s3, 0($s1) sw $s4, 0($s0) sort_next: addi $s1, $s1, -4 bne $s0, $s1, sort_loop add $a0,$0,$s0 #display $s0 addi $v0,$0,34 # display hex syscall # we are out of here. DISP: disp $r0, 0 addi $s0,$s0,4 addi $s1,$zero,60 bne $s0, $s1, sort_loop addi $v0,$zero,50 # system call for exit syscall # we are out of here. #MIPS处理器实现中请用停机指令实现syscall jmp_count: addi $s0,$zero, 0 addi $s0,$s0, 1 add $a0,$0,$s0 addi $v0,$0,34 # display hex syscall # we are out of here. addi $s0,$s0, 2 add $a0,$0,$s0 addi $v0,$0,34 # display hex syscall # we are out of here. addi $s0,$s0, 3 add $a0,$0,$s0 addi $v0,$0,34 # display hex syscall # we are out of here. addi $s0,$s0, 4 add $a0,$0,$s0 addi $v0,$0,34 # display hex syscall # we are out of here. addi $s0,$s0, 5 add $a0,$0,$s0 addi $v0,$0,34 # display hex syscall # we are out of here. addi $s0,$s0, 6 add $a0,$0,$s0 addi $v0,$0,34 # display hex syscall # we are out of here. addi $s0,$s0, 7 add $a0,$0,$s0 addi $v0,$0,34 # display hex syscall # we are out of here. addi $s0,$s0, 8 add $a0,$0,$s0 addi $v0,$0,34 # display hex addi $v0,$0,34 # display hex syscall # we are out of here. jr $31