mirror of
https://github.com/rdolbeau/VexRiscvBPluginGenerator.git
synced 2025-04-18 18:44:42 -04:00
merge CTZ and CLZ, seems to save some LUTs
This commit is contained in:
Romain Dolbeau
parent
29738d20b8
commit
e870f3ebe7
11 changed files with 68 additions and 87 deletions
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@ -87,7 +87,11 @@ object BitManipBFPOnlyPlugin {
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r // return value
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}
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def fun_clz(in:Bits) : Bits = {
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// For trailing count, count using use leading count on bit-reversed value
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def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
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val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
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val in = (ctz === True) ? (inr) | (ino)
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val nlc7 = fun_clz_NLCi(in(31 downto 28))
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val nlc6 = fun_clz_NLCi(in(27 downto 24))
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val nlc5 = fun_clz_NLCi(in(23 downto 20))
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@ -113,11 +117,6 @@ object BitManipBFPOnlyPlugin {
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r.resize(32) // return value
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}
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// For trailing count, count using use leading count on bit-reversed value
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def fun_ctz(in:Bits) : Bits = {
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val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
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fun_clz(inr) // return value
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}
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// naive popcnt
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def fun_popcnt(in:Bits) : Bits = {
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@ -91,7 +91,11 @@ object BitManipZbaPlugin {
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r // return value
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}
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def fun_clz(in:Bits) : Bits = {
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// For trailing count, count using use leading count on bit-reversed value
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def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
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val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
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val in = (ctz === True) ? (inr) | (ino)
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val nlc7 = fun_clz_NLCi(in(31 downto 28))
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val nlc6 = fun_clz_NLCi(in(27 downto 24))
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val nlc5 = fun_clz_NLCi(in(23 downto 20))
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@ -117,11 +121,6 @@ object BitManipZbaPlugin {
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r.resize(32) // return value
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}
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// For trailing count, count using use leading count on bit-reversed value
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def fun_ctz(in:Bits) : Bits = {
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val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
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fun_clz(inr) // return value
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}
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// naive popcnt
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def fun_popcnt(in:Bits) : Bits = {
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@ -14,7 +14,7 @@ object BitManipZbbPlugin {
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val CTRL_MAX, CTRL_MAXU, CTRL_MIN, CTRL_MINU = newElement()
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}
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object BitManipZbbCtrlcountzeroesEnum extends SpinalEnum(binarySequential) {
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val CTRL_CLZ, CTRL_CPOP, CTRL_CTZ = newElement()
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val CTRL_CLTZ, CTRL_CPOP = newElement()
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}
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object BitManipZbbCtrlsignextendEnum extends SpinalEnum(binarySequential) {
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val CTRL_SEXTdotB, CTRL_SEXTdotH, CTRL_ZEXTdotH = newElement()
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@ -111,7 +111,11 @@ object BitManipZbbPlugin {
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r // return value
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}
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def fun_clz(in:Bits) : Bits = {
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// For trailing count, count using use leading count on bit-reversed value
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def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
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val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
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val in = (ctz === True) ? (inr) | (ino)
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val nlc7 = fun_clz_NLCi(in(31 downto 28))
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val nlc6 = fun_clz_NLCi(in(27 downto 24))
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val nlc5 = fun_clz_NLCi(in(23 downto 20))
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@ -137,11 +141,6 @@ object BitManipZbbPlugin {
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r.resize(32) // return value
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}
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// For trailing count, count using use leading count on bit-reversed value
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def fun_ctz(in:Bits) : Bits = {
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val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
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fun_clz(inr) // return value
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}
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// naive popcnt
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def fun_popcnt(in:Bits) : Bits = {
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@ -457,8 +456,7 @@ class BitManipZbbPlugin(earlyInjection : Boolean = true) extends Plugin[VexRiscv
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def MAX_KEY = M"0000101----------110-----0110011"
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def MAXU_KEY = M"0000101----------111-----0110011"
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def RORI_KEY = M"01100------------101-----0010011"
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def CLZ_KEY = M"011000000000-----001-----0010011"
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def CTZ_KEY = M"011000000001-----001-----0010011"
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def CLTZ_KEY = M"01100000000------001-----0010011"
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def CPOP_KEY = M"011000000010-----001-----0010011"
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def SEXTdotB_KEY = M"011000000100-----001-----0010011"
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def SEXTdotH_KEY = M"011000000101-----001-----0010011"
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@ -478,8 +476,7 @@ class BitManipZbbPlugin(earlyInjection : Boolean = true) extends Plugin[VexRiscv
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MINU_KEY -> (binaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_minmax, BitManipZbbCtrlminmax -> BitManipZbbCtrlminmaxEnum.CTRL_MINU)),
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MAX_KEY -> (binaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_minmax, BitManipZbbCtrlminmax -> BitManipZbbCtrlminmaxEnum.CTRL_MAX)),
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MAXU_KEY -> (binaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_minmax, BitManipZbbCtrlminmax -> BitManipZbbCtrlminmaxEnum.CTRL_MAXU)),
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CLZ_KEY -> (unaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_countzeroes, BitManipZbbCtrlcountzeroes -> BitManipZbbCtrlcountzeroesEnum.CTRL_CLZ)),
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CTZ_KEY -> (unaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_countzeroes, BitManipZbbCtrlcountzeroes -> BitManipZbbCtrlcountzeroesEnum.CTRL_CTZ)),
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CLTZ_KEY -> (unaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_countzeroes, BitManipZbbCtrlcountzeroes -> BitManipZbbCtrlcountzeroesEnum.CTRL_CLTZ)),
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CPOP_KEY -> (unaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_countzeroes, BitManipZbbCtrlcountzeroes -> BitManipZbbCtrlcountzeroesEnum.CTRL_CPOP)),
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SEXTdotB_KEY -> (unaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_signextend, BitManipZbbCtrlsignextend -> BitManipZbbCtrlsignextendEnum.CTRL_SEXTdotB)),
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SEXTdotH_KEY -> (unaryActions ++ List(BitManipZbbCtrl -> BitManipZbbCtrlEnum.CTRL_signextend, BitManipZbbCtrlsignextend -> BitManipZbbCtrlsignextendEnum.CTRL_SEXTdotH)),
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@ -509,9 +506,8 @@ class BitManipZbbPlugin(earlyInjection : Boolean = true) extends Plugin[VexRiscv
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BitManipZbbCtrlminmaxEnum.CTRL_MINU -> ((input(SRC1).asUInt < input(SRC2).asUInt) ? input(SRC1) | input(SRC2)).asBits
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) // mux minmax
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val val_countzeroes = input(BitManipZbbCtrlcountzeroes).mux(
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BitManipZbbCtrlcountzeroesEnum.CTRL_CLZ -> fun_clz(input(SRC1)).asBits,
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BitManipZbbCtrlcountzeroesEnum.CTRL_CPOP -> fun_popcnt(input(SRC1)).asBits,
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BitManipZbbCtrlcountzeroesEnum.CTRL_CTZ -> fun_ctz(input(SRC1)).asBits
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BitManipZbbCtrlcountzeroesEnum.CTRL_CLTZ -> fun_cltz(input(SRC1), input(INSTRUCTION)(20)).asBits,
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BitManipZbbCtrlcountzeroesEnum.CTRL_CPOP -> fun_popcnt(input(SRC1)).asBits
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) // mux countzeroes
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val val_signextend = input(BitManipZbbCtrlsignextend).mux(
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BitManipZbbCtrlsignextendEnum.CTRL_SEXTdotB -> (Bits(24 bits).setAllTo(input(SRC1)(7)) ## input(SRC1)(7 downto 0)).asBits,
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@ -29,7 +29,7 @@ object BitManipZbbZbpPlugin {
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val CTRL_GORC, CTRL_GREV = newElement()
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}
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object BitManipZbbZbpCtrlcountzeroesEnum extends SpinalEnum(binarySequential) {
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val CTRL_CLZ, CTRL_CPOP, CTRL_CTZ = newElement()
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val CTRL_CLTZ, CTRL_CPOP = newElement()
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}
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object BitManipZbbZbpCtrlsignextendEnum extends SpinalEnum(binarySequential) {
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val CTRL_SEXTdotB, CTRL_SEXTdotH = newElement()
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@ -127,7 +127,11 @@ object BitManipZbbZbpPlugin {
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r // return value
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}
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def fun_clz(in:Bits) : Bits = {
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// For trailing count, count using use leading count on bit-reversed value
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def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
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val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
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val in = (ctz === True) ? (inr) | (ino)
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val nlc7 = fun_clz_NLCi(in(31 downto 28))
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val nlc6 = fun_clz_NLCi(in(27 downto 24))
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val nlc5 = fun_clz_NLCi(in(23 downto 20))
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@ -153,11 +157,6 @@ object BitManipZbbZbpPlugin {
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r.resize(32) // return value
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}
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// For trailing count, count using use leading count on bit-reversed value
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def fun_ctz(in:Bits) : Bits = {
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val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
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fun_clz(inr) // return value
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}
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// naive popcnt
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def fun_popcnt(in:Bits) : Bits = {
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@ -443,8 +442,7 @@ class BitManipZbbZbpPlugin(earlyInjection : Boolean = true) extends Plugin[VexRi
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def GREVI_KEY = M"01101------------101-----0010011"
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def SHFLI_KEY = M"000010-----------001-----0010011"
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def UNSHFLI_KEY = M"000010-----------101-----0010011"
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def CLZ_KEY = M"011000000000-----001-----0010011"
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def CTZ_KEY = M"011000000001-----001-----0010011"
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def CLTZ_KEY = M"01100000000------001-----0010011"
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def CPOP_KEY = M"011000000010-----001-----0010011"
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def SEXTdotB_KEY = M"011000000100-----001-----0010011"
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def SEXTdotH_KEY = M"011000000101-----001-----0010011"
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@ -475,8 +473,7 @@ class BitManipZbbZbpPlugin(earlyInjection : Boolean = true) extends Plugin[VexRi
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XPERMdotH_KEY -> (binaryActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_xperm, BitManipZbbZbpCtrlxperm -> BitManipZbbZbpCtrlxpermEnum.CTRL_XPERMdotH)),
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GORCI_KEY -> (immediateActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_grevorc, BitManipZbbZbpCtrlgrevorc -> BitManipZbbZbpCtrlgrevorcEnum.CTRL_GORC)),
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GREVI_KEY -> (immediateActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_grevorc, BitManipZbbZbpCtrlgrevorc -> BitManipZbbZbpCtrlgrevorcEnum.CTRL_GREV)),
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CLZ_KEY -> (unaryActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_countzeroes, BitManipZbbZbpCtrlcountzeroes -> BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CLZ)),
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CTZ_KEY -> (unaryActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_countzeroes, BitManipZbbZbpCtrlcountzeroes -> BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CTZ)),
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CLTZ_KEY -> (unaryActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_countzeroes, BitManipZbbZbpCtrlcountzeroes -> BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CLTZ)),
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CPOP_KEY -> (unaryActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_countzeroes, BitManipZbbZbpCtrlcountzeroes -> BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CPOP)),
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SEXTdotB_KEY -> (unaryActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_signextend, BitManipZbbZbpCtrlsignextend -> BitManipZbbZbpCtrlsignextendEnum.CTRL_SEXTdotB)),
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SEXTdotH_KEY -> (unaryActions ++ List(BitManipZbbZbpCtrl -> BitManipZbbZbpCtrlEnum.CTRL_signextend, BitManipZbbZbpCtrlsignextend -> BitManipZbbZbpCtrlsignextendEnum.CTRL_SEXTdotH))
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@ -525,9 +522,8 @@ class BitManipZbbZbpPlugin(earlyInjection : Boolean = true) extends Plugin[VexRi
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BitManipZbbZbpCtrlgrevorcEnum.CTRL_GREV -> fun_grev(input(SRC1), input(SRC2)).asBits
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) // mux grevorc
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val val_countzeroes = input(BitManipZbbZbpCtrlcountzeroes).mux(
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BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CLZ -> fun_clz(input(SRC1)).asBits,
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BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CPOP -> fun_popcnt(input(SRC1)).asBits,
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BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CTZ -> fun_ctz(input(SRC1)).asBits
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BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CLTZ -> fun_cltz(input(SRC1), input(INSTRUCTION)(20)).asBits,
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BitManipZbbZbpCtrlcountzeroesEnum.CTRL_CPOP -> fun_popcnt(input(SRC1)).asBits
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) // mux countzeroes
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val val_signextend = input(BitManipZbbZbpCtrlsignextend).mux(
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BitManipZbbZbpCtrlsignextendEnum.CTRL_SEXTdotB -> (Bits(24 bits).setAllTo(input(SRC1)(7)) ## input(SRC1)(7 downto 0)).asBits,
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@ -91,7 +91,11 @@ object BitManipZbe1cyclePlugin {
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r // return value
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}
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def fun_clz(in:Bits) : Bits = {
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// For trailing count, count using use leading count on bit-reversed value
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def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
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val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
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val in = (ctz === True) ? (inr) | (ino)
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val nlc7 = fun_clz_NLCi(in(31 downto 28))
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val nlc6 = fun_clz_NLCi(in(27 downto 24))
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val nlc5 = fun_clz_NLCi(in(23 downto 20))
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@ -117,11 +121,6 @@ object BitManipZbe1cyclePlugin {
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r.resize(32) // return value
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}
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// For trailing count, count using use leading count on bit-reversed value
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def fun_ctz(in:Bits) : Bits = {
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val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
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fun_clz(inr) // return value
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}
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// naive popcnt
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def fun_popcnt(in:Bits) : Bits = {
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@ -91,7 +91,11 @@ object BitManipZbfPlugin {
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r // return value
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}
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def fun_clz(in:Bits) : Bits = {
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// For trailing count, count using use leading count on bit-reversed value
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def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
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val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
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val in = (ctz === True) ? (inr) | (ino)
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val nlc7 = fun_clz_NLCi(in(31 downto 28))
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val nlc6 = fun_clz_NLCi(in(27 downto 24))
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val nlc5 = fun_clz_NLCi(in(23 downto 20))
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||||
|
|
@ -117,11 +121,6 @@ object BitManipZbfPlugin {
|
|||
|
||||
r.resize(32) // return value
|
||||
}
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_ctz(in:Bits) : Bits = {
|
||||
val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
|
||||
fun_clz(inr) // return value
|
||||
}
|
||||
|
||||
// naive popcnt
|
||||
def fun_popcnt(in:Bits) : Bits = {
|
||||
|
|
|
|||
|
|
@ -115,7 +115,11 @@ object BitManipZbpPlugin {
|
|||
|
||||
r // return value
|
||||
}
|
||||
def fun_clz(in:Bits) : Bits = {
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
|
||||
val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
|
||||
val in = (ctz === True) ? (inr) | (ino)
|
||||
|
||||
val nlc7 = fun_clz_NLCi(in(31 downto 28))
|
||||
val nlc6 = fun_clz_NLCi(in(27 downto 24))
|
||||
val nlc5 = fun_clz_NLCi(in(23 downto 20))
|
||||
|
|
@ -141,11 +145,6 @@ object BitManipZbpPlugin {
|
|||
|
||||
r.resize(32) // return value
|
||||
}
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_ctz(in:Bits) : Bits = {
|
||||
val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
|
||||
fun_clz(inr) // return value
|
||||
}
|
||||
|
||||
// naive popcnt
|
||||
def fun_popcnt(in:Bits) : Bits = {
|
||||
|
|
|
|||
|
|
@ -91,7 +91,11 @@ object BitManipZbsPlugin {
|
|||
|
||||
r // return value
|
||||
}
|
||||
def fun_clz(in:Bits) : Bits = {
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
|
||||
val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
|
||||
val in = (ctz === True) ? (inr) | (ino)
|
||||
|
||||
val nlc7 = fun_clz_NLCi(in(31 downto 28))
|
||||
val nlc6 = fun_clz_NLCi(in(27 downto 24))
|
||||
val nlc5 = fun_clz_NLCi(in(23 downto 20))
|
||||
|
|
@ -117,11 +121,6 @@ object BitManipZbsPlugin {
|
|||
|
||||
r.resize(32) // return value
|
||||
}
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_ctz(in:Bits) : Bits = {
|
||||
val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
|
||||
fun_clz(inr) // return value
|
||||
}
|
||||
|
||||
// naive popcnt
|
||||
def fun_popcnt(in:Bits) : Bits = {
|
||||
|
|
|
|||
|
|
@ -91,7 +91,11 @@ object BitManipZbtPlugin {
|
|||
|
||||
r // return value
|
||||
}
|
||||
def fun_clz(in:Bits) : Bits = {
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
|
||||
val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
|
||||
val in = (ctz === True) ? (inr) | (ino)
|
||||
|
||||
val nlc7 = fun_clz_NLCi(in(31 downto 28))
|
||||
val nlc6 = fun_clz_NLCi(in(27 downto 24))
|
||||
val nlc5 = fun_clz_NLCi(in(23 downto 20))
|
||||
|
|
@ -117,11 +121,6 @@ object BitManipZbtPlugin {
|
|||
|
||||
r.resize(32) // return value
|
||||
}
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_ctz(in:Bits) : Bits = {
|
||||
val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
|
||||
fun_clz(inr) // return value
|
||||
}
|
||||
|
||||
// naive popcnt
|
||||
def fun_popcnt(in:Bits) : Bits = {
|
||||
|
|
|
|||
|
|
@ -111,7 +111,11 @@ object CryptoZkbPlugin {
|
|||
|
||||
r // return value
|
||||
}
|
||||
def fun_clz(in:Bits) : Bits = {
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
|
||||
val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
|
||||
val in = (ctz === True) ? (inr) | (ino)
|
||||
|
||||
val nlc7 = fun_clz_NLCi(in(31 downto 28))
|
||||
val nlc6 = fun_clz_NLCi(in(27 downto 24))
|
||||
val nlc5 = fun_clz_NLCi(in(23 downto 20))
|
||||
|
|
@ -137,11 +141,6 @@ object CryptoZkbPlugin {
|
|||
|
||||
r.resize(32) // return value
|
||||
}
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_ctz(in:Bits) : Bits = {
|
||||
val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
|
||||
fun_clz(inr) // return value
|
||||
}
|
||||
|
||||
// naive popcnt
|
||||
def fun_popcnt(in:Bits) : Bits = {
|
||||
|
|
|
|||
|
|
@ -107,8 +107,7 @@ I UNSHFLI UNSHFL 000010-----------101-----0010011 shuffle Zbp
|
|||
//I GORCIW GORCW 0010100----------101-----0011011 grevroc
|
||||
//I GREVIW GREVW 0110100----------101-----0011011 grevroc
|
||||
// unary register
|
||||
I CLZ CLZ 011000000000-----001-----0010011 countzeroes Zbb
|
||||
I CTZ CTZ 011000000001-----001-----0010011 countzeroes Zbb
|
||||
I CLTZ CLTZ 01100000000------001-----0010011 countzeroes Zbb
|
||||
I CPOP CPOP 011000000010-----001-----0010011 countzeroes Zbb
|
||||
//I BMATFLIP BMATFLIP 011000000011-----001-----0010011 BMATFLIP
|
||||
I SEXTdotB SEXTdotB 011000000100-----001-----0010011 signextend Zbb
|
||||
|
|
@ -163,18 +162,17 @@ S MAXU "((input(SRC1).asUInt > input(SRC2).asUInt) ? input(SRC1) | input(SRC2))"
|
|||
S XPERMdotN "fun_xperm_n(input(SRC1), input(SRC2))"
|
||||
S XPERMdotB "fun_xperm_b(input(SRC1), input(SRC2))"
|
||||
S XPERMdotH "fun_xperm_h(input(SRC1), input(SRC2))"
|
||||
S BFP "fun_bfp(input(SRC1), input(SRC2))"
|
||||
// if 'SRC2' doesn't appear in the semantic, the code assume unary
|
||||
S SEXTdotB "(Bits(24 bits).setAllTo(input(SRC1)(7)) ## input(SRC1)(7 downto 0))"
|
||||
S SEXTdotH "(Bits(16 bits).setAllTo(input(SRC1)(15)) ## input(SRC1)(15 downto 0))"
|
||||
S CLZ "fun_clz(input(SRC1))"
|
||||
S CTZ "fun_ctz(input(SRC1))"
|
||||
S CLTZ "fun_cltz(input(SRC1), input(INSTRUCTION)(20))"
|
||||
S CPOP "fun_popcnt(input(SRC1))"
|
||||
// if 'SRC3' appear in the semantic, the code assume ternary
|
||||
S CMIX "((input(SRC1) & input(SRC2)) | (input(SRC3) & ~input(SRC2)))"
|
||||
S CMOV "((input(SRC2).asUInt =/= 0) ? input(SRC1) | input(SRC3))"
|
||||
S FSL "fun_fsl(input(SRC1), input(SRC3), input(SRC2))"
|
||||
S FSR "fun_fsr(input(SRC1), input(SRC3), input(SRC2))"
|
||||
S BFP "fun_bfp(input(SRC1), input(SRC2))"
|
||||
|
||||
// PROLOGUE
|
||||
P """
|
||||
|
|
@ -255,7 +253,11 @@ P """
|
|||
|
||||
r // return value
|
||||
}
|
||||
def fun_clz(in:Bits) : Bits = {
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_cltz(ino:Bits, ctz:Bool) : Bits = {
|
||||
val inr = ino(0) ## ino(1) ## ino(2) ## ino(3) ## ino(4) ## ino(5) ## ino(6) ## ino(7) ## ino(8) ## ino(9) ## ino(10) ## ino(11) ## ino(12) ## ino(13) ## ino(14) ## ino(15) ## ino(16) ## ino(17) ## ino(18) ## ino(19) ## ino(20) ## ino(21) ## ino(22) ## ino(23) ## ino(24) ## ino(25) ## ino(26) ## ino(27) ## ino(28) ## ino(29) ## ino(30) ## ino(31)
|
||||
val in = (ctz === True) ? (inr) | (ino)
|
||||
|
||||
val nlc7 = fun_clz_NLCi(in(31 downto 28))
|
||||
val nlc6 = fun_clz_NLCi(in(27 downto 24))
|
||||
val nlc5 = fun_clz_NLCi(in(23 downto 20))
|
||||
|
|
@ -281,11 +283,6 @@ P """
|
|||
|
||||
r.resize(32) // return value
|
||||
}
|
||||
// For trailing count, count using use leading count on bit-reversed value
|
||||
def fun_ctz(in:Bits) : Bits = {
|
||||
val inr = in(0) ## in(1) ## in(2) ## in(3) ## in(4) ## in(5) ## in(6) ## in(7) ## in(8) ## in(9) ## in(10) ## in(11) ## in(12) ## in(13) ## in(14) ## in(15) ## in(16) ## in(17) ## in(18) ## in(19) ## in(20) ## in(21) ## in(22) ## in(23) ## in(24) ## in(25) ## in(26) ## in(27) ## in(28) ## in(29) ## in(30) ## in(31)
|
||||
fun_clz(inr) // return value
|
||||
}
|
||||
|
||||
// naive popcnt
|
||||
def fun_popcnt(in:Bits) : Bits = {
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue