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timing_analysis_of_adpcm

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timing_analysis_of_adpcm [2013/05/14 13:26] (current)
yvonne.z1229 created
Line 1: Line 1:
 +Timing ​ analysis of ADPCM
 +
 +FMax : 68.58 MHz
 +
 +**Start signal: LEGUP_function_call_88**
 +
 +**End signal: upzero_preheader_55_reg**
 +
 +if ( (cur_state == LEGUP_function_call_88) )
 +begin
 +**upzero_memory_controller_out_b = memory_controller_out_b;​**
 +end
 +
 +upzero upzero_inst (
 +.
 +.
 +.
 +**.memory_controller_out_b (upzero_memory_controller_out_b),​**
 +);
 +
 +/*   %55 = add nsw i32 %51, %54*/
 +
 +**upzero_preheader_55 = (upzero_preheader_51 + upzero_preheader_54);​**
 +
 +
 +/*   %54 = ashr i32 %53, 8*/
 +
 +**upzero_preheader_54 = ($signed(upzero_preheader_53) >>>​ 32'​d8);​**
 +
 +
 +/*   %53 = mul nsw i32 %52, 255*/
 +
 +**upzero_preheader_53 = (upzero_preheader_52 * 32'​d255);​**
 +
 +
 +/*   %52 = load i32* %scevgep5.3,​ align 4, !tbaa !0*/
 +
 +**upzero_preheader_52 = memory_controller_out_b[31:​0];​**
 +
 +
 +/*   %51 = or i32 %50, 128*/
 +
 +**upzero_preheader_51 = (upzero_preheader_50 | 32'​d128);​**
 +
 +
 +/*   %50 = and i32 %49, -256*/
 +
 +**upzero_preheader_50 = (upzero_preheader_49 & -32'​d256);​**
 +
 +
 +/*   %49 = ashr i32 %48, 31*/
 +
 +**upzero_preheader_49 = ($signed(upzero_preheader_48) >>>​ 32'​d31);​**
 +
 +
 +/*   %48 = mul nsw i32 %47, %dlt*/
 +
 +**upzero_preheader_48 = (upzero_preheader_47 * arg_dlt);**
 +
 +
 +/*   %47 = load i32* %scevgep.3, align 4, !tbaa !0*/
 +
 +**upzero_preheader_47 = memory_controller_out_a[31:​0];​**
 +
 +Corresponding C code:
 +
 +in fuction upzero:
 +
 +   **if ((long) dlt * dlti[i] >= 0)
 +     wd2 = 128;
 +   else
 +     wd2 = -128;
 +   wd3 = (int) ((255L * bli[i]) >> 8L); /* leak factor of 255/256 */
 +   bli[i] = wd2 + wd3;**
 +
 +
 +^ TOTAL ^ INCR ^ TYPE ^ LOCATION ^ ELEMENT ^
 +| 0 | 0 | | | launch edge time |
 +| 2.652 | 2.652 | | | clock path |
 +| 0 | 0 | | | source latency |
 +| 0 | 0 | | PIN_M1 | clk |
 +| 0.979 | 0.979 | CELL | IOC_X0_Y18_N2 | clk|combout |
 +| 1.097 | 0.118 | IC | CLKCTRL_G3 | clk~clkctrl|inclk[0] |
 +| 1.097 | 0 | CELL | CLKCTRL_G3 | clk~clkctrl|outclk |
 +| 2.115 | 1.018 | IC | LCFF_X14_Y12_N25 | main_inst|cur_state.LEGUP_function_call_88|clk |
 +| 2.652 | 0.537 | CELL | LCFF_X14_Y12_N25 | main:​main_inst|cur_state.LEGUP_function_call_88 |
 +| 17.27 | 14.618 | | | data path |
 +| 2.902 | 0.25 | uTco | LCFF_X14_Y12_N25 | main:​main_inst|cur_state.LEGUP_function_call_88 |
 +| 2.902 | 0 | CELL | LCFF_X14_Y12_N25 | main_inst|cur_state.LEGUP_function_call_88|regout |
 +| 3.247 | 0.345 | IC | LCCOMB_X14_Y12_N10 | main_inst|legup_function_call~0|dataa |
 +| 3.645 | 0.398 | CELL | LCCOMB_X14_Y12_N10 | main_inst|legup_function_call~0|combout |
 +| 5.192 | 1.547 | IC | LCCOMB_X38_Y13_N18 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|cs2a[2]~2|datad |
 +| 5.342 | 0.15 | CELL | LCCOMB_X38_Y13_N18 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|cs2a[2]~2|combout |
 +| 5.595 | 0.253 | IC | LCCOMB_X38_Y13_N28 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|cs2a[3]~3|datad |
 +| 5.745 | 0.15 | CELL | LCCOMB_X38_Y13_N28 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|cs2a[3]~3|combout |
 +| 6.018 | 0.273 | IC | LCCOMB_X38_Y13_N22 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|cs2a[4]~6|datad |
 +| 6.168 | 0.15 | CELL | LCCOMB_X38_Y13_N22 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|cs2a[4]~6|combout |
 +| 6.922 | 0.754 | IC | LCCOMB_X37_Y12_N16 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_5~0|datab |
 +| 7.315 | 0.393 | CELL | LCCOMB_X37_Y12_N16 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_5~0|cout |
 +| 7.315 | 0 | IC | LCCOMB_X37_Y12_N18 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_5~2|cin |
 +| 7.725 | 0.41 | CELL | LCCOMB_X37_Y12_N18 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_5~2|combout |
 +| 8.68 | 0.955 | IC | LCCOMB_X36_Y11_N20 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_3~10|datab |
 +| 9.073 | 0.393 | CELL | LCCOMB_X36_Y11_N20 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_3~10|cout |
 +| 9.073 | 0 | IC | LCCOMB_X36_Y11_N22 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_3~12|cin |
 +| 9.144 | 0.071 | CELL | LCCOMB_X36_Y11_N22 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_3~12|cout |
 +| 9.144 | 0 | IC | LCCOMB_X36_Y11_N24 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_3~14|cin |
 +| 9.554 | 0.41 | CELL | LCCOMB_X36_Y11_N24 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_3~14|combout |
 +| 10.237 | 0.683 | IC | LCCOMB_X37_Y11_N22 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_1~22|dataa |
 +| 10.651 | 0.414 | CELL | LCCOMB_X37_Y11_N22 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_1~22|cout |
 +| 10.651 | 0 | IC | LCCOMB_X37_Y11_N24 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_1~24|cin |
 +| 11.061 | 0.41 | CELL | LCCOMB_X37_Y11_N24 | main_inst|upzero_inst|Mult0|auto_generated|mac_mult3|auto_generated|mult1|op_1~24|combout |
 +| 11.502 | 0.441 | IC | LCCOMB_X38_Y11_N28 | main_inst|upzero_inst|Mult0|auto_generated|op_1~25|datab |
 +| 11.895 | 0.393 | CELL | LCCOMB_X38_Y11_N28 | main_inst|upzero_inst|Mult0|auto_generated|op_1~25|cout |
 +| 11.895 | 0 | IC | LCCOMB_X38_Y11_N30 | main_inst|upzero_inst|Mult0|auto_generated|op_1~26|cin |
 +| 12.305 | 0.41 | CELL | LCCOMB_X38_Y11_N30 | main_inst|upzero_inst|Mult0|auto_generated|op_1~26|combout |
 +| 14.123 | 1.818 | IC | LCCOMB_X16_Y9_N16 | main_inst|upzero_inst|Add19~2|datab |
 +| 14.516 | 0.393 | CELL | LCCOMB_X16_Y9_N16 | main_inst|upzero_inst|Add19~2|cout |
 +| 14.516 | 0 | IC | LCCOMB_X16_Y9_N18 | main_inst|upzero_inst|Add19~4|cin |
 +| 14.587 | 0.071 | CELL | LCCOMB_X16_Y9_N18 | main_inst|upzero_inst|Add19~4|cout |
 +| 14.587 | 0 | IC | LCCOMB_X16_Y9_N20 | main_inst|upzero_inst|Add19~6|cin |
 +| 14.658 | 0.071 | CELL | LCCOMB_X16_Y9_N20 | main_inst|upzero_inst|Add19~6|cout |
 +| 14.658 | 0 | IC | LCCOMB_X16_Y9_N22 | main_inst|upzero_inst|Add19~8|cin |
 +| 14.729 | 0.071 | CELL | LCCOMB_X16_Y9_N22 | main_inst|upzero_inst|Add19~8|cout |
 +| 14.729 | 0 | IC | LCCOMB_X16_Y9_N24 | main_inst|upzero_inst|Add19~10|cin |
 +| 14.8 | 0.071 | CELL | LCCOMB_X16_Y9_N24 | main_inst|upzero_inst|Add19~10|cout |
 +| 14.8 | 0 | IC | LCCOMB_X16_Y9_N26 | main_inst|upzero_inst|Add19~12|cin |
 +| 14.871 | 0.071 | CELL | LCCOMB_X16_Y9_N26 | main_inst|upzero_inst|Add19~12|cout |
 +| 14.871 | 0 | IC | LCCOMB_X16_Y9_N28 | main_inst|upzero_inst|Add19~14|cin |
 +| 14.942 | 0.071 | CELL | LCCOMB_X16_Y9_N28 | main_inst|upzero_inst|Add19~14|cout |
 +| 14.942 | 0 | IC | LCCOMB_X16_Y9_N30 | main_inst|upzero_inst|Add19~16|cin |
 +| 15.088 | 0.146 | CELL | LCCOMB_X16_Y9_N30 | main_inst|upzero_inst|Add19~16|cout |
 +| 15.088 | 0 | IC | LCCOMB_X16_Y8_N0 | main_inst|upzero_inst|Add19~18|cin |
 +| 15.159 | 0.071 | CELL | LCCOMB_X16_Y8_N0 | main_inst|upzero_inst|Add19~18|cout |
 +| 15.159 | 0 | IC | LCCOMB_X16_Y8_N2 | main_inst|upzero_inst|Add19~20|cin |
 +| 15.23 | 0.071 | CELL | LCCOMB_X16_Y8_N2 | main_inst|upzero_inst|Add19~20|cout |
 +| 15.23 | 0 | IC | LCCOMB_X16_Y8_N4 | main_inst|upzero_inst|Add19~22|cin |
 +| 15.301 | 0.071 | CELL | LCCOMB_X16_Y8_N4 | main_inst|upzero_inst|Add19~22|cout |
 +| 15.301 | 0 | IC | LCCOMB_X16_Y8_N6 | main_inst|upzero_inst|Add19~24|cin |
 +| 15.372 | 0.071 | CELL | LCCOMB_X16_Y8_N6 | main_inst|upzero_inst|Add19~24|cout |
 +| 15.372 | 0 | IC | LCCOMB_X16_Y8_N8 | main_inst|upzero_inst|Add19~26|cin |
 +| 15.443 | 0.071 | CELL | LCCOMB_X16_Y8_N8 | main_inst|upzero_inst|Add19~26|cout |
 +| 15.443 | 0 | IC | LCCOMB_X16_Y8_N10 | main_inst|upzero_inst|Add19~28|cin |
 +| 15.514 | 0.071 | CELL | LCCOMB_X16_Y8_N10 | main_inst|upzero_inst|Add19~28|cout |
 +| 15.514 | 0 | IC | LCCOMB_X16_Y8_N12 | main_inst|upzero_inst|Add19~30|cin |
 +| 15.585 | 0.071 | CELL | LCCOMB_X16_Y8_N12 | main_inst|upzero_inst|Add19~30|cout |
 +| 15.585 | 0 | IC | LCCOMB_X16_Y8_N14 | main_inst|upzero_inst|Add19~32|cin |
 +| 15.744 | 0.159 | CELL | LCCOMB_X16_Y8_N14 | main_inst|upzero_inst|Add19~32|cout |
 +| 15.744 | 0 | IC | LCCOMB_X16_Y8_N16 | main_inst|upzero_inst|Add19~34|cin |
 +| 16.154 | 0.41 | CELL | LCCOMB_X16_Y8_N16 | main_inst|upzero_inst|Add19~34|combout |
 +| 16.904 | 0.75 | IC | LCFF_X12_Y8_N3 | main_inst|upzero_inst|upzero__preheader_55_reg[24]|sdata |
 +| 17.27 | 0.366 | CELL | LCFF_X12_Y8_N3 | main:​main_inst|upzero:​upzero_inst|upzero__preheader_55_reg[24] |
  
timing_analysis_of_adpcm.txt ยท Last modified: 2013/05/14 13:26 by yvonne.z1229