mirror of https://github.com/YosysHQ/yosys.git
synth_gatemate: Revise block RAM read modes and initialization
* enable mixed read-width / write-width ports in SDP mode * fix NO_CHANGE and WRITE_THROUGH behavior during read access * remove redundant zero-initialization * set A/B_WE bit during map (gatemate_bramopt pass could be removed later) * differentiate "upper" and "lower" initialization for cascade mode
This commit is contained in:
Patrick Urban
Marcelina Kościelnicka
parent
3f4ccdf2f5
commit
4bee908ae8
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@ -1,3 +1,4 @@
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`ifdef INIT_LOWER
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.INIT_00(permute_init(INIT[ 0*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_01(permute_init(INIT[ 1*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_02(permute_init(INIT[ 2*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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@ -126,3 +127,134 @@
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.INIT_7D(permute_init(INIT[125*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7E(permute_init(INIT[126*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7F(permute_init(INIT[127*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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`endif
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`ifdef INIT_UPPER
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.INIT_00(permute_init(INIT[128*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_01(permute_init(INIT[129*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_02(permute_init(INIT[130*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_03(permute_init(INIT[131*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_04(permute_init(INIT[132*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_05(permute_init(INIT[133*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_06(permute_init(INIT[134*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_07(permute_init(INIT[135*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_08(permute_init(INIT[136*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_09(permute_init(INIT[137*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_0A(permute_init(INIT[138*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_0B(permute_init(INIT[139*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_0C(permute_init(INIT[140*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_0D(permute_init(INIT[141*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_0E(permute_init(INIT[142*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_0F(permute_init(INIT[143*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_10(permute_init(INIT[144*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_11(permute_init(INIT[145*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_12(permute_init(INIT[146*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_13(permute_init(INIT[147*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_14(permute_init(INIT[148*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_15(permute_init(INIT[149*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_16(permute_init(INIT[150*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_17(permute_init(INIT[151*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_18(permute_init(INIT[152*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_19(permute_init(INIT[153*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_1A(permute_init(INIT[154*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_1B(permute_init(INIT[155*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_1C(permute_init(INIT[156*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_1D(permute_init(INIT[157*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_1E(permute_init(INIT[158*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_1F(permute_init(INIT[159*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_20(permute_init(INIT[160*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_21(permute_init(INIT[161*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_22(permute_init(INIT[162*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_23(permute_init(INIT[163*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_24(permute_init(INIT[164*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_25(permute_init(INIT[165*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_26(permute_init(INIT[166*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_27(permute_init(INIT[167*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_28(permute_init(INIT[168*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_29(permute_init(INIT[169*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_2A(permute_init(INIT[170*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_2B(permute_init(INIT[171*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_2C(permute_init(INIT[172*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_2D(permute_init(INIT[173*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_2E(permute_init(INIT[174*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_2F(permute_init(INIT[175*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_30(permute_init(INIT[176*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_31(permute_init(INIT[177*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_32(permute_init(INIT[178*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_33(permute_init(INIT[179*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_34(permute_init(INIT[180*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_35(permute_init(INIT[181*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_36(permute_init(INIT[182*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_37(permute_init(INIT[183*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_38(permute_init(INIT[184*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_39(permute_init(INIT[185*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_3A(permute_init(INIT[186*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_3B(permute_init(INIT[187*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_3C(permute_init(INIT[188*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_3D(permute_init(INIT[189*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_3E(permute_init(INIT[190*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_3F(permute_init(INIT[191*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_40(permute_init(INIT[192*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_41(permute_init(INIT[193*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_42(permute_init(INIT[194*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_43(permute_init(INIT[195*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_44(permute_init(INIT[196*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_45(permute_init(INIT[197*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_46(permute_init(INIT[198*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_47(permute_init(INIT[199*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_48(permute_init(INIT[200*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_49(permute_init(INIT[201*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_4A(permute_init(INIT[202*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_4B(permute_init(INIT[203*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_4C(permute_init(INIT[204*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_4D(permute_init(INIT[205*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_4E(permute_init(INIT[206*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_4F(permute_init(INIT[207*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_50(permute_init(INIT[208*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_51(permute_init(INIT[209*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_52(permute_init(INIT[210*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_53(permute_init(INIT[211*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_54(permute_init(INIT[212*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_55(permute_init(INIT[213*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_56(permute_init(INIT[214*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_57(permute_init(INIT[215*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_58(permute_init(INIT[216*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_59(permute_init(INIT[217*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_5A(permute_init(INIT[218*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_5B(permute_init(INIT[219*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_5C(permute_init(INIT[220*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_5D(permute_init(INIT[221*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_5E(permute_init(INIT[222*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_5F(permute_init(INIT[223*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_60(permute_init(INIT[224*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_61(permute_init(INIT[225*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_62(permute_init(INIT[226*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_63(permute_init(INIT[227*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_64(permute_init(INIT[228*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_65(permute_init(INIT[229*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_66(permute_init(INIT[230*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_67(permute_init(INIT[231*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_68(permute_init(INIT[232*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_69(permute_init(INIT[233*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_6A(permute_init(INIT[234*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_6B(permute_init(INIT[235*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_6C(permute_init(INIT[236*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_6D(permute_init(INIT[237*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_6E(permute_init(INIT[238*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_6F(permute_init(INIT[239*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_70(permute_init(INIT[240*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_71(permute_init(INIT[241*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_72(permute_init(INIT[242*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_73(permute_init(INIT[243*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_74(permute_init(INIT[244*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_75(permute_init(INIT[245*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_76(permute_init(INIT[246*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_77(permute_init(INIT[247*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_78(permute_init(INIT[248*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_79(permute_init(INIT[249*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7A(permute_init(INIT[250*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7B(permute_init(INIT[251*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7C(permute_init(INIT[252*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7D(permute_init(INIT[253*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7E(permute_init(INIT[254*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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.INIT_7F(permute_init(INIT[255*INIT_CHUNK_SIZE +: INIT_CHUNK_SIZE])),
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`endif
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@ -58,12 +58,7 @@ module \$__CC_BRAM_20K_SDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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begin
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if (CFG_DBITS <= 2) begin
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for (i = 0; i < 64; i = i + 1) begin
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if (^chunk[i * 4 +: 4] === 1'bx) begin
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permute_init[i * 5 +: 5] = 5'b0;
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end
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else begin
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
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end
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
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end
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end else begin
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permute_init = chunk;
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@ -92,7 +87,7 @@ module \$__CC_BRAM_20K_SDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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.B_CLK(CLK3),
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.A_EN(1'b1),
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.B_EN(B1EN),
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.A_WE(1'b1),
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.A_WE(|A1EN),
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.B_WE(1'b0),
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.A_ADDR(ADDRA),
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.B_ADDR(ADDRB),
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@ -146,12 +141,7 @@ module \$__CC_BRAM_40K_SDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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begin
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if (CFG_DBITS <= 2) begin
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for (i = 0; i < 64; i = i + 1) begin
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if (^chunk[i * 4 +: 4] === 1'bx) begin
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permute_init[i * 5 +: 5] = 5'b0;
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end
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else begin
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
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end
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
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end
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end else begin
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permute_init = chunk;
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@ -160,7 +150,9 @@ module \$__CC_BRAM_40K_SDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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endfunction
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CC_BRAM_40K #(
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`define INIT_LOWER
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`include "brams_init_40.vh"
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`undef INIT_LOWER
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.LOC("UNPLACED"),
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.CAS("NONE"),
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.A_RD_WIDTH(0), .B_RD_WIDTH(CFG_DBITS),
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@ -181,9 +173,9 @@ module \$__CC_BRAM_40K_SDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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.B_ECC_2B_ERR(B_ECC_2B_ERR),
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.A_CLK(CLK2),
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.B_CLK(CLK3),
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.A_EN(1'b1),
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.A_EN(|A1EN),
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.B_EN(B1EN),
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.A_WE(1'b1),
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.A_WE(|A1EN),
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.B_WE(1'b0),
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.A_ADDR(ADDRA),
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.B_ADDR(ADDRB),
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@ -234,12 +226,7 @@ module \$__CC_BRAM_20K_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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begin
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if (CFG_DBITS <= 2) begin
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for (i = 0; i < 64; i = i + 1) begin
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if (^chunk[i * 4 +: 4] === 1'bx) begin
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permute_init[i * 5 +: 5] = 5'b0;
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end
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else begin
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
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end
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
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end
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end else begin
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permute_init = chunk;
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@ -294,7 +281,7 @@ module \$__CC_BRAM_20K_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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.B_CLK(CLK3),
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.A_EN(1'b1),
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.B_EN(B1EN),
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.A_WE(1'b1),
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.A_WE(|A1EN),
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.B_WE(1'b0),
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.A_ADDR(ADDRA),
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.B_ADDR(ADDRB),
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@ -346,7 +333,7 @@ module \$__CC_BRAM_40K_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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begin
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if (CFG_DBITS <= 2) begin
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for (i = 0; i < 64; i = i + 1) begin
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]} & 5'b11111;
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permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
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end
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end else begin
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permute_init = chunk;
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@ -384,7 +371,9 @@ module \$__CC_BRAM_40K_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
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end
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CC_BRAM_40K #(
|
||||
`define INIT_LOWER
|
||||
`include "brams_init_40.vh"
|
||||
`undef INIT_LOWER
|
||||
.LOC("UNPLACED"),
|
||||
.CAS("NONE"),
|
||||
.A_RD_WIDTH(0), .B_RD_WIDTH(CFG_DBITS),
|
||||
|
|
@ -407,7 +396,7 @@ module \$__CC_BRAM_40K_TDP (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
|
|||
.B_CLK(CLK3),
|
||||
.A_EN(1'b1),
|
||||
.B_EN(B1EN),
|
||||
.A_WE(1'b1),
|
||||
.A_WE(|A1EN),
|
||||
.B_WE(1'b0),
|
||||
.A_ADDR(ADDRA),
|
||||
.B_ADDR(ADDRB),
|
||||
|
|
@ -461,14 +450,16 @@ module \$__CC_BRAM_CASCADE (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
|
|||
integer i;
|
||||
begin
|
||||
for (i = 0; i < 64; i = i + 1) begin
|
||||
permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]} & 5'b11111;
|
||||
permute_init[i * 5 +: 5] = {1'b0, chunk[i * 4 +: 4]};
|
||||
end
|
||||
end
|
||||
endfunction
|
||||
|
||||
generate
|
||||
CC_BRAM_40K #(
|
||||
`include "brams_init_40.vh"
|
||||
`define INIT_UPPER
|
||||
`include "brams_init_40.vh" // INIT_80 .. INIT_FF
|
||||
`undef INIT_UPPER
|
||||
.LOC("UNPLACED"),
|
||||
.CAS("UPPER"),
|
||||
.A_RD_WIDTH(0), .B_RD_WIDTH(CFG_DBITS),
|
||||
|
|
@ -493,7 +484,7 @@ module \$__CC_BRAM_CASCADE (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
|
|||
.B_CLK(CLK3),
|
||||
.A_EN(1'b1),
|
||||
.B_EN(B1EN),
|
||||
.A_WE(1'b1),
|
||||
.A_WE(|A1EN),
|
||||
.B_WE(1'b0),
|
||||
.A_ADDR(A1ADDR),
|
||||
.B_ADDR(B1ADDR),
|
||||
|
|
@ -504,7 +495,9 @@ module \$__CC_BRAM_CASCADE (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
|
|||
);
|
||||
|
||||
CC_BRAM_40K #(
|
||||
`include "brams_init_40.vh"
|
||||
`define INIT_LOWER
|
||||
`include "brams_init_40.vh" // INIT_00 .. INIT_7F
|
||||
`undef INIT_LOWER
|
||||
.LOC("UNPLACED"),
|
||||
.CAS("LOWER"),
|
||||
.A_RD_WIDTH(0), .B_RD_WIDTH(CFG_DBITS),
|
||||
|
|
@ -525,7 +518,7 @@ module \$__CC_BRAM_CASCADE (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1
|
|||
.B_CLK(CLK3),
|
||||
.A_EN(1'b1),
|
||||
.B_EN(B1EN),
|
||||
.A_WE(1'b1),
|
||||
.A_WE(|A1EN),
|
||||
.B_WE(1'b0),
|
||||
.A_ADDR(A1ADDR),
|
||||
.B_ADDR(B1ADDR),
|
||||
|
|
|
|||
|
|
@ -758,41 +758,41 @@ module CC_BRAM_20K (
|
|||
generate
|
||||
if (RAM_MODE == "SDP") begin
|
||||
// Port A (write)
|
||||
if (WIDTH_MODE_A <= 1) begin
|
||||
if (A_WR_WIDTH <= 1) begin
|
||||
assign addra = A_ADDR[15:7] + (A_ADDR[15:7]/4);
|
||||
end
|
||||
if (WIDTH_MODE_A <= 2) begin
|
||||
else if (A_WR_WIDTH <= 2) begin
|
||||
assign addra = A_ADDR[15:7]*2 + (A_ADDR[15:7]/2);
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 5) begin
|
||||
else if (A_WR_WIDTH <= 5) begin
|
||||
assign addra = A_ADDR[15:7]*5;
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 10) begin
|
||||
else if (A_WR_WIDTH <= 10) begin
|
||||
assign addra = A_ADDR[15:7]*10;
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 20) begin
|
||||
else if (A_WR_WIDTH <= 20) begin
|
||||
assign addra = A_ADDR[15:7]*20;
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 40) begin
|
||||
else if (A_WR_WIDTH <= 40) begin
|
||||
assign addra = A_ADDR[15:7]*40;
|
||||
end
|
||||
// Port B (read)
|
||||
if (WIDTH_MODE_B <= 1) begin
|
||||
if (B_RD_WIDTH <= 1) begin
|
||||
assign addrb = B_ADDR[15:7] + (B_ADDR[15:7]/4);
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 2) begin
|
||||
else if (B_RD_WIDTH <= 2) begin
|
||||
assign addrb = B_ADDR[15:7]*2 + (B_ADDR[15:7]/2);
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 5) begin
|
||||
else if (B_RD_WIDTH <= 5) begin
|
||||
assign addrb = B_ADDR[15:7]*5;
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 10) begin
|
||||
else if (B_RD_WIDTH <= 10) begin
|
||||
assign addrb = B_ADDR[15:7]*10;
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 20) begin
|
||||
else if (B_RD_WIDTH <= 20) begin
|
||||
assign addrb = B_ADDR[15:7]*20;
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 40) begin
|
||||
else if (B_RD_WIDTH <= 40) begin
|
||||
assign addrb = B_ADDR[15:7]*40;
|
||||
end
|
||||
end
|
||||
|
|
@ -841,7 +841,7 @@ module CC_BRAM_20K (
|
|||
// SDP write port
|
||||
always @(posedge clka)
|
||||
begin
|
||||
for (k=0; k < WIDTH_MODE_A; k=k+1) begin
|
||||
for (k=0; k < A_WR_WIDTH; k=k+1) begin
|
||||
if (k < 20) begin
|
||||
if (ena && wea && A_BM[k]) memory[addra+k] <= A_DI[k];
|
||||
end
|
||||
|
|
@ -853,12 +853,13 @@ module CC_BRAM_20K (
|
|||
// SDP read port
|
||||
always @(posedge clkb)
|
||||
begin
|
||||
for (k=0; k < WIDTH_MODE_B; k=k+1) begin
|
||||
// "NO_CHANGE" only
|
||||
for (k=0; k < B_RD_WIDTH; k=k+1) begin
|
||||
if (k < 20) begin
|
||||
if (enb) A_DO_out[k] <= memory[addrb+k];
|
||||
if (enb && !wea) A_DO_out[k] <= memory[addrb+k];
|
||||
end
|
||||
else begin // use both ports
|
||||
if (enb) B_DO_out[k-20] <= memory[addrb+k];
|
||||
if (enb && !wea) B_DO_out[k-20] <= memory[addrb+k];
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -871,10 +872,17 @@ module CC_BRAM_20K (
|
|||
if (ena && wea && A_BM[i]) memory[addra+i] <= A_DI[i];
|
||||
|
||||
if (A_WR_MODE == "NO_CHANGE") begin
|
||||
if (ena) A_DO_out[i] <= memory[addra+i];
|
||||
if (ena && !wea) A_DO_out[i] <= memory[addra+i];
|
||||
end
|
||||
else if (A_WR_MODE == "WRITE_THROUGH") begin
|
||||
if (ena) A_DO_out[i] <= A_DI[i];
|
||||
if (ena) begin
|
||||
if (wea && A_BM[i]) begin
|
||||
A_DO_out[i] <= A_DI[i];
|
||||
end
|
||||
else begin
|
||||
A_DO_out[i] <= memory[addra+i];
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -885,10 +893,17 @@ module CC_BRAM_20K (
|
|||
if (enb && web && B_BM[i]) memory[addrb+i] <= B_DI[i];
|
||||
|
||||
if (B_WR_MODE == "NO_CHANGE") begin
|
||||
if (enb) B_DO_out[i] <= memory[addrb+i];
|
||||
if (enb && !web) B_DO_out[i] <= memory[addrb+i];
|
||||
end
|
||||
else if (B_WR_MODE == "WRITE_THROUGH") begin
|
||||
if (enb) B_DO_out[i] <= B_DI[i];
|
||||
if (enb) begin
|
||||
if (web && B_BM[i]) begin
|
||||
B_DO_out[i] <= B_DI[i];
|
||||
end
|
||||
else begin
|
||||
B_DO_out[i] <= memory[addrb+i];
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1152,6 +1167,10 @@ module CC_BRAM_40K (
|
|||
$display("ERROR: Illegal %s Port B width configuration %d.", RAM_MODE, WIDTH_MODE_B);
|
||||
$finish();
|
||||
end
|
||||
if (CAS != "NONE") begin
|
||||
$display("WARNING: Cascade simulation model not yet supported.");
|
||||
$finish();
|
||||
end
|
||||
if ((CAS != "NONE") && ((WIDTH_MODE_A > 1) || (WIDTH_MODE_B > 1))) begin
|
||||
$display("ERROR: Cascade feature only supported in 1 bit data width mode.");
|
||||
$finish();
|
||||
|
|
@ -1308,47 +1327,47 @@ module CC_BRAM_40K (
|
|||
generate
|
||||
if (RAM_MODE == "SDP") begin
|
||||
// Port A (write)
|
||||
if (WIDTH_MODE_A <= 1) begin
|
||||
if (A_WR_WIDTH <= 1) begin
|
||||
assign addra = A_ADDR[15:7] + (A_ADDR[15:7]/4);
|
||||
end
|
||||
if (WIDTH_MODE_A <= 2) begin
|
||||
else if (A_WR_WIDTH <= 2) begin
|
||||
assign addra = A_ADDR[15:7]*2 + (A_ADDR[15:7]/2);
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 5) begin
|
||||
else if (A_WR_WIDTH <= 5) begin
|
||||
assign addra = A_ADDR[15:7]*5;
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 10) begin
|
||||
else if (A_WR_WIDTH <= 10) begin
|
||||
assign addra = A_ADDR[15:7]*10;
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 20) begin
|
||||
else if (A_WR_WIDTH <= 20) begin
|
||||
assign addra = A_ADDR[15:7]*20;
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 40) begin
|
||||
else if (A_WR_WIDTH <= 40) begin
|
||||
assign addra = A_ADDR[15:7]*40;
|
||||
end
|
||||
else if (WIDTH_MODE_A <= 80) begin
|
||||
else if (A_WR_WIDTH <= 80) begin
|
||||
assign addra = A_ADDR[15:7]*80;
|
||||
end
|
||||
// Port B (read)
|
||||
if (WIDTH_MODE_B <= 1) begin
|
||||
if (B_RD_WIDTH <= 1) begin
|
||||
assign addrb = B_ADDR[15:7] + (B_ADDR[15:7]/4);
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 2) begin
|
||||
else if (B_RD_WIDTH <= 2) begin
|
||||
assign addrb = B_ADDR[15:7]*2 + (B_ADDR[15:7]/2);
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 5) begin
|
||||
else if (B_RD_WIDTH <= 5) begin
|
||||
assign addrb = B_ADDR[15:7]*5;
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 10) begin
|
||||
else if (B_RD_WIDTH <= 10) begin
|
||||
assign addrb = B_ADDR[15:7]*10;
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 20) begin
|
||||
else if (B_RD_WIDTH <= 20) begin
|
||||
assign addrb = B_ADDR[15:7]*20;
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 40) begin
|
||||
else if (B_RD_WIDTH <= 40) begin
|
||||
assign addrb = B_ADDR[15:7]*40;
|
||||
end
|
||||
else if (WIDTH_MODE_B <= 80) begin
|
||||
else if (B_RD_WIDTH <= 80) begin
|
||||
assign addrb = B_ADDR[15:7]*80;
|
||||
end
|
||||
end
|
||||
|
|
@ -1403,7 +1422,7 @@ module CC_BRAM_40K (
|
|||
// SDP write port
|
||||
always @(posedge clka)
|
||||
begin
|
||||
for (k=0; k < WIDTH_MODE_A; k=k+1) begin
|
||||
for (k=0; k < A_WR_WIDTH; k=k+1) begin
|
||||
if (k < 40) begin
|
||||
if (ena && wea && A_BM[k]) memory[addra+k] <= A_DI[k];
|
||||
end
|
||||
|
|
@ -1415,12 +1434,13 @@ module CC_BRAM_40K (
|
|||
// SDP read port
|
||||
always @(posedge clkb)
|
||||
begin
|
||||
for (k=0; k < WIDTH_MODE_B; k=k+1) begin
|
||||
// "NO_CHANGE" only
|
||||
for (k=0; k < B_RD_WIDTH; k=k+1) begin
|
||||
if (k < 40) begin
|
||||
if (enb) A_DO_out[k] <= memory[addrb+k];
|
||||
if (enb && !wea) A_DO_out[k] <= memory[addrb+k];
|
||||
end
|
||||
else begin // use both ports
|
||||
if (enb) B_DO_out[k-40] <= memory[addrb+k];
|
||||
if (enb && !wea) B_DO_out[k-40] <= memory[addrb+k];
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1433,10 +1453,17 @@ module CC_BRAM_40K (
|
|||
if (ena && wea && A_BM[i]) memory[addra+i] <= A_DI[i];
|
||||
|
||||
if (A_WR_MODE == "NO_CHANGE") begin
|
||||
if (ena) A_DO_out[i] <= memory[addra+i];
|
||||
if (ena && !wea) A_DO_out[i] <= memory[addra+i];
|
||||
end
|
||||
else if (A_WR_MODE == "WRITE_THROUGH") begin
|
||||
if (ena) A_DO_out[i] <= A_DI[i];
|
||||
if (ena) begin
|
||||
if (wea && A_BM[i]) begin
|
||||
A_DO_out[i] <= A_DI[i];
|
||||
end
|
||||
else begin
|
||||
A_DO_out[i] <= memory[addra+i];
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
@ -1447,10 +1474,17 @@ module CC_BRAM_40K (
|
|||
if (enb && web && B_BM[i]) memory[addrb+i] <= B_DI[i];
|
||||
|
||||
if (B_WR_MODE == "NO_CHANGE") begin
|
||||
if (enb) B_DO_out[i] <= memory[addrb+i];
|
||||
if (enb && !web) B_DO_out[i] <= memory[addrb+i];
|
||||
end
|
||||
else if (B_WR_MODE == "WRITE_THROUGH") begin
|
||||
if (enb) B_DO_out[i] <= B_DI[i];
|
||||
if (enb) begin
|
||||
if (web && B_BM[i]) begin
|
||||
B_DO_out[i] <= B_DI[i];
|
||||
end
|
||||
else begin
|
||||
B_DO_out[i] <= memory[addrb+i];
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
|||
Loading…
Reference in New Issue