The return value of the function is not output from the module?

[ikwzm]

// fib.c
int fib(int n)
{
  int r0 = 0;
  int r1 = 1;
  int i;
  if (n <= 0) return 0;
  if (n == 1) return 1;
  for(i = 0; i < n; i++) {
    int prev_r1 = r1;
    r1 = r0 + r1;
    r0 = prev_r1;
  }
  return r0;
}

generate from fib.c to fib.v

shell% synverll fib.c fib_top

verilog-hdl like the following is generated.

// fib.v
module fib(
    input __func_clock,
    input __func_reset,
    input __func_start,
    output reg __func_done,
    output reg __func_ready,

    output reg __gm_req,
    output reg __gm_rnw,
    input __gm_done,
    output reg [31:0] __gm_adrs,
    output reg [1:0] __gm_leng,
    input [31:0] __gm_di,
    output reg [31:0] __gm_do,

    // Memory Singal
    input [31:0] __args_n,
    // Call Singal

    output reg __dummy
);

The port for outputting the return value to where?

[aquaxis]

Hello,

Sorry, it does not implement for return value. Now, during the implement. Please, wait.

Hidemi Ishihara.

On Fri, 13 Nov 2015 21:56:32 -0800 KAWAZOME Ichiro notifications@github.com wrote:

// fib.c
int fib(int n)
{
  int r0 = 0;
  int r1 = 1;
  int i;
  if (n <= 0) return 0;
  if (n == 1) return 1;
  for(i = 0; i < n; i++) {
    int prev_r1 = r1;
    r1 = r0 + r1;
    r0 = prev_r1;
  }
  return r0;
}

generate from fib.c to fib.v

shell% synverll fib.c fib_top

verilog-hdl like the following is generated.

// fib.v
module fib(
  input __func_clock,
  input __func_reset,
  input __func_start,
  output reg __func_done,
  output reg __func_ready,

  output reg __gm_req,
  output reg __gm_rnw,
  input __gm_done,
  output reg [31:0] __gm_adrs,
  output reg [1:0] __gm_leng,
  input [31:0] __gm_di,
  output reg [31:0] __gm_do,

  // Memory Singal
  input [31:0] __args_n,
  // Call Singal

  output reg __dummy
);

The port for outputting the return value to where?

---

Reply to this email directly or view it on GitHub: https://github.com/aquaxis/synverll/issues/1

Hidemi Ishihara hidemi@sweetcafe.jp

[aquaxis]

Hello,

I modify with V0.4.

Best regards,