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remove multiple posedge clk, which doesn't work

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This commit is contained in:
Raphael Jacquot 2019-02-07 09:38:27 +01:00
parent 5a5fc9c775
commit 0940b198d3
2 changed files with 2 additions and 11 deletions
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2
hp48_io_ram.v
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@ -66,7 +66,7 @@ initial
`ifdef SIM
$write(".");
`endif
io_ram[base_addr] = 0;
io_ram[base_addr] <= 0;
end
`ifdef SIM
$write("\n");

11
saturn_core.v
View file

@ -223,6 +223,7 @@ hp48_bus bus_ctrl (
*/
always @(posedge clk)
begin
if (reset)
begin
// bus
@ -271,13 +272,11 @@ always @(posedge clk)
R4 <= 0;
end
always @(posedge clk)
if (bus_error)
begin
halt <= 1;
end
always @(posedge clk)
if (runstate == `RUN_INIT)
begin
`ifdef SIM
@ -295,7 +294,6 @@ always @(posedge clk)
// display registers
`ifdef SIM
always @(posedge clk)
if ((runstate == `NEXT_INSTR) & (~reset))
begin
saved_PC <= PC;
@ -323,7 +321,6 @@ always @(posedge clk)
*
*/
always @(posedge clk)
if (runstate == `NEXT_INSTR)
if (bus_load_pc)
begin
@ -345,7 +342,6 @@ always @(posedge clk)
end
// start reading instruction
always @(posedge clk)
if (runstate == `INSTR_START)
begin
`ifdef SIM
@ -355,7 +351,6 @@ always @(posedge clk)
runstate <= `INSTR_STROBE;
end
always @(posedge clk)
if (runstate == `INSTR_STROBE)
begin
`ifdef SIM
@ -377,7 +372,6 @@ always @(posedge clk)
*/
// read from rom clock in
always @(posedge clk)
if (runstate == `READ_STROBE)
begin
//$display("READ_STROBE");
@ -385,7 +379,6 @@ always @(posedge clk)
end
// read from rom store
always @(posedge clk)
if (runstate == `READ_DONE)
begin
//$display("READ_DONE");
@ -404,8 +397,6 @@ always @(posedge clk)
//
//--------------------------------------------------------------------------------------------------
always @(posedge clk)
begin
// first nibble instruction decoder
if ((runstate == `INSTR_READY) & (decstate == DECODE_START))
begin