OpenCores

#  One of the rule on restricted sequence is consecutive IU instruction

#  One of the rule on restricted sequence is consecutive IU instruction

#       IU: MUL, MAC, MACS, MSUB, MSUBS  (a)

#       IU: MUL, MAC, MACS, MSUB, MSUBS  (a)

#       IU: MULHXpp, MULX2H, MUL2H      (b)

#       IU: MULHXpp, MULX2H, MUL2H      (b)

# This means that instructions in group (a) and in (b) should not be executed

# This means that instructions in group (a) and in (b) should not be executed

# in IU in consecutive cycles in the order (a)->(b). It does neither prohibit

# in IU in consecutive cycles in the order (a)->(b). It does neither prohibit

# executions in the reverse order (b)-> (a) nor consecutive execution of

# executions in the reverse order (b)-> (a) nor consecutive execution of

# group (a)->(a) or (b)->(b)

# group (a)->(a) or (b)->(b)

        mulx2h r5,r6,r7         <-      mulx2h r2,r3,r4

        mulx2h r5,r6,r7         <-      mulx2h r2,r3,r4

        nop     ||      mulx2h r8,r9,r10

        nop     ||      mulx2h r8,r9,r10

        nop     ||      mulx2h r11,r12,r13

        nop     ||      mulx2h r11,r12,r13

        mulx2h r14,r15,r16

        mulx2h r14,r15,r16

        mulx2h r17,r18,r19

        mulx2h r17,r18,r19

        mulx2h r23,r24,r25     <-       mulx2h r20,r21,r22

        mulx2h r23,r24,r25     <-       mulx2h r20,r21,r22

        mul    r29,r30,r31     <-       mulx2h r26,r27,r28

        mul    r29,r30,r31     <-       mulx2h r26,r27,r28

        mul    r5, r6, r7      <-       mul r2, r3, r4

        mul    r5, r6, r7      <-       mul r2, r3, r4

        mulx2h r11, r12, r13   <-       mulx2h r8, r9, r10

        mulx2h r11, r12, r13   <-       mulx2h r8, r9, r10

        mulx2h r17, r18, r19   <-       mul r14, r15, r16

        mulx2h r17, r18, r19   <-       mul r14, r15, r16

        mul    r23, r24, r25   <-       mulx2h r20, r21, r22

        mul    r23, r24, r25   <-       mulx2h r20, r21, r22

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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [gas/] [testsuite/] [gas/] [d30v/] [mul.s] - Diff between revs 156 and 816

Rev 156	Rev 816
`# One of the rule on restricted sequence is consecutive IU instruction`	`# One of the rule on restricted sequence is consecutive IU instruction`
`# IU: MUL, MAC, MACS, MSUB, MSUBS (a)`	`# IU: MUL, MAC, MACS, MSUB, MSUBS (a)`
`# IU: MULHXpp, MULX2H, MUL2H (b)`	`# IU: MULHXpp, MULX2H, MUL2H (b)`
`# This means that instructions in group (a) and in (b) should not be executed`	`# This means that instructions in group (a) and in (b) should not be executed`
`# in IU in consecutive cycles in the order (a)->(b). It does neither prohibit`	`# in IU in consecutive cycles in the order (a)->(b). It does neither prohibit`
`# executions in the reverse order (b)-> (a) nor consecutive execution of`	`# executions in the reverse order (b)-> (a) nor consecutive execution of`
`# group (a)->(a) or (b)->(b)`	`# group (a)->(a) or (b)->(b)`

`mulx2h r5,r6,r7 <- mulx2h r2,r3,r4`	`mulx2h r5,r6,r7 <- mulx2h r2,r3,r4`
`nop \|\| mulx2h r8,r9,r10`	`nop \|\| mulx2h r8,r9,r10`
`nop \|\| mulx2h r11,r12,r13`	`nop \|\| mulx2h r11,r12,r13`
`mulx2h r14,r15,r16`	`mulx2h r14,r15,r16`
`mulx2h r17,r18,r19`	`mulx2h r17,r18,r19`
`mulx2h r23,r24,r25 <- mulx2h r20,r21,r22`	`mulx2h r23,r24,r25 <- mulx2h r20,r21,r22`
`mul r29,r30,r31 <- mulx2h r26,r27,r28`	`mul r29,r30,r31 <- mulx2h r26,r27,r28`
`mul r5, r6, r7 <- mul r2, r3, r4`	`mul r5, r6, r7 <- mul r2, r3, r4`
`mulx2h r11, r12, r13 <- mulx2h r8, r9, r10`	`mulx2h r11, r12, r13 <- mulx2h r8, r9, r10`
`mulx2h r17, r18, r19 <- mul r14, r15, r16`	`mulx2h r17, r18, r19 <- mul r14, r15, r16`
`mul r23, r24, r25 <- mulx2h r20, r21, r22`	`mul r23, r24, r25 <- mulx2h r20, r21, r22`