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/*
* This is a version of stack machine with 16-bit data ports
* on *both* wishbone interfaces (data interface is wrapped).
*/
`default_nettype none
module wrapped_stack_machine
(
/* Those 2 are supposed to be common for both wishbone interfaces */
input wire CLK_I,
input wire RST_I,
/* Instruction reading interface */
input wire I_ACK_I,
output wire [19:0] I_ADR_O,
input wire [15:0] I_DAT_I,
output wire [15:0] I_DAT_O, /* Not used, interface read-only */
output wire I_STB_O,
output wire I_CYC_O,
output wire I_WE_O, /* Always 0, interface read-only */
input wire I_STALL_I,
/* Data interface */
input wire D_ACK_I,
output wire [19:0] D_ADR_O,
input wire [15:0] D_DAT_I,
output wire [15:0] D_DAT_O,
output wire D_STB_O,
output wire D_CYC_O,
output wire D_WE_O,
input wire D_STALL_I,
/* non-wishbone */
output wire finished
);
wire D_RAW_ACK_I;
wire D_RAW_ERR_I; /* Not used yet, always low */
wire [20:0] D_RAW_ADR_O;
wire [31:0] D_RAW_DAT_I;
wire [31:0] D_RAW_DAT_O;
wire [3:0] D_RAW_SEL_O; /* Not used yet, always 4'hF */
wire D_RAW_STB_O;
wire D_RAW_CYC_O;
wire D_RAW_WE_O;
wire D_RAW_STALL_I;
stack_machine_new stack_machine
(
.CLK_I(CLK_I),
.RST_I(RST_I),
/* Instruction reading interface */
.I_ACK_I(I_ACK_I),
.I_ADR_O(I_ADR_O),
.I_DAT_I(I_DAT_I),
.I_DAT_O(I_DAT_O),
.I_STB_O(I_STB_O),
.I_CYC_O(I_CYC_O),
.I_WE_O(I_WE_O),
.I_STALL_I(I_STALL_I),
/* Data interface */
.D_ACK_I(D_RAW_ACK_I),
.D_ERR_I(D_RAW_ERR_I),
.D_ADR_O(D_RAW_ADR_O),
.D_DAT_I(D_RAW_DAT_I),
.D_DAT_O(D_RAW_DAT_O),
.D_SEL_O(D_RAW_SEL_O),
.D_STB_O(D_RAW_STB_O),
.D_CYC_O(D_RAW_CYC_O),
.D_WE_O(D_RAW_WE_O),
.D_STALL_I(D_RAW_STALL_I),
.finished(finished)
);
interface_wrapper wrapper
(
.CLK_I(CLK_I),
.RST_I(RST_I),
.RAW_ACK_I(D_RAW_ACK_I),
.RAW_ERR_I(D_RAW_ERR_I),
.RAW_ADR_O(D_RAW_ADR_O),
.RAW_DAT_I(D_RAW_DAT_I),
.RAW_DAT_O(D_RAW_DAT_O),
.RAW_SEL_O(D_RAW_SEL_O),
.RAW_STB_O(D_RAW_STB_O),
.RAW_CYC_O(D_RAW_CYC_O),
.RAW_WE_O(D_RAW_WE_O),
.RAW_STALL_I(D_RAW_STALL_I),
.WRAPPED_ACK_I(D_ACK_I),
.WRAPPED_ADR_O(D_ADR_O),
.WRAPPED_DAT_I(D_DAT_I),
.WRAPPED_DAT_O(D_DAT_O),
.WRAPPED_STB_O(D_STB_O),
.WRAPPED_CYC_O(D_CYC_O),
.WRAPPED_WE_O(D_WE_O),
.WRAPPED_STALL_I(D_STALL_I)
);
endmodule // wrapped_stack_machine
|
