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https://opencores.org/ocsvn/ion/ion/trunk
[/] [ion/] [trunk/] [src/] [opcodes/] [opcodes.s] - Diff between revs 66 and 90
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| Rev 66 |
Rev 90 |
| Line 1212... |
Line 1212... |
ori $2,$0,'e'
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ori $2,$0,'e'
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sb $2,0($20)
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sb $2,0($20)
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sb $23,0($20)
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sb $23,0($20)
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sb $21,0($20)
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sb $21,0($20)
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# These tests are to be evaluated by matching logs with the software
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# simulator. There is no need to perform any actual tests here, if there is
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# any error it will show up as a mismatch in the logs.
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#-- Arithmetic --------------------------------------------------
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ori $s0,$zero,0xa5a5
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ori $s1,$zero,15
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ori $s2,$zero,1
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li $s3,-1
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li $s4,-1000
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li $s5,0x80000000
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li $s6,0x7fffffff
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#-- ADD ---------------------------
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move $t0,$s0 # P + P = P
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move $t1,$s1
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add $t0,$t1,$s1
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move $t0,$s0 # P + N = P
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move $t1,$s1
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add $t0,$t1,$s3
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move $t0,$s0 # P + N = N
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move $t1,$s1
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add $t0,$t1,$s4
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move $t0,$s0 # P + P = N (overflow)
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move $t1,$s6
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add $t0,$t1,$s6
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move $t0,$s0 # N + N = P (overflow)
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move $t1,$s5
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add $t0,$t1,$s5
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#-- ADDI --------------------------
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move $t0,$s0 # N + N = P (overflow)
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move $t1,$s5
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addi $t0,$t1,-1
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move $t0,$s0 # N + P = N
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move $t1,$s5
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addi $t0,$t1,15
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move $t0,$s0 # N + P = P
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move $t1,$s3
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addi $t0,$t1,2
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move $t0,$s0 # P + P = P
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move $t1,$s1
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addi $t0,$t1,2
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move $t0,$s0 # P + P = N (overflow)
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move $t1,$s6
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addi $t0,$t1,2
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#-- ADDIU -------------------------
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move $t0,$s0 # N + N = P (overflow)
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move $t1,$s5
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addiu $t0,$t1,-1
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move $t0,$s0 # N + P = N
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move $t1,$s5
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addiu $t0,$t1,15
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move $t0,$s0 # N + P = P
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move $t1,$s3
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addiu $t0,$t1,2
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move $t0,$s0 # P + P = P
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move $t1,$s1
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addiu $t0,$t1,2
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move $t0,$s0 # P + P = N (overflow)
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move $t1,$s6
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addiu $t0,$t1,2
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#-- ADDU --------------------------
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move $t0,$s0 # P + P = P
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move $t1,$s1
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addu $t0,$t1,$s1
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move $t0,$s0 # P + N = P
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move $t1,$s1
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addu $t0,$t1,$s3
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move $t0,$s0 # P + N = N
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move $t1,$s1
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addu $t0,$t1,$s4
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move $t0,$s0 # P + P = N (overflow)
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move $t1,$s6
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addu $t0,$t1,$s6
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move $t0,$s0 # N + N = P (overflow)
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move $t1,$s5
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addu $t0,$t1,$s5
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#-- SUB ---------------------------
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move $t0,$s0 # P - P = P
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move $t1,$s2
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sub $t0,$t1,$s1
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move $t0,$s0 # P - N = P
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move $t1,$s1
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add $t0,$t1,$s3
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move $t0,$s0 # P + N = N
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move $t1,$s1
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add $t0,$t1,$s4
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move $t0,$s0 # P + P = N (overflow)
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move $t1,$s6
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add $t0,$t1,$s6
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move $t0,$s0 # N + N = P (overflow)
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move $t1,$s5
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add $t0,$t1,$s5
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# SLT, SLTI, SLTIU
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ori $a2,$zero,0xa5a5
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ori $a0,$zero,15
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ori $a1,$zero,1
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move $v0,$a3
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slt $v0,$a0,$a1
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move $v0,$a3
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slt $v0,$a1,$a0
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move $v0,$a3
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slti $v0,$a0,1
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move $v0,$a3
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slti $v0,$a1,15
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move $v0,$a3
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sltiu $v0,$a0,1
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move $v0,$a3
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sltiu $v0,$a1,15
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li $a1,0xa5a5
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li $a0,1029
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addiu $a0,$a0,-2000
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sltu $a1,$a0,1000
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#-- Relative jumps ----------------------------------------------
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li $s0,0x7fffffff
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ori $s1,1000
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ori $s1,15
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ori $s1,2
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li $s4,0x80000000
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li $s5,-1001
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li $s6,-16
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li $s7,-3
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bgtz $s1,test_b0
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nop
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ori $v0,0x5500
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test_b0:
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bgtz $s7,test_b1
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nop
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ori $v0,0x5501
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test_b1:
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bgtz $s0,test_b2
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nop
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ori $v0,0x5502
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test_b2:
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bgtz $s4,test_b3
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nop
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ori $v0,0x5503
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test_b3:
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bgez $s1,test_b4
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nop
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ori $v0,0x5500
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test_b4:
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bgez $s7,test_b5
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nop
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ori $v0,0x5501
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test_b5:
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bgez $s0,test_b6
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nop
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ori $v0,0x5502
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test_b6:
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bgez $s4,test_b7
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nop
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ori $v0,0x5503
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test_b7:
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bltz $s1,test_b8
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nop
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ori $v0,0x5500
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test_b8:
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bltz $s7,test_b9
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nop
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ori $v0,0x5501
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test_b9:
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bltz $s0,test_b10
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nop
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ori $v0,0x5502
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test_b10:
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bltz $s4,test_b11
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nop
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ori $v0,0x5503
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test_b11:
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$DONE:
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$DONE:
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j $DONE
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j $DONE
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nop
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nop
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