- driver_sd update, now supports more SDHC cards;

- ps2 fix; now the mouse is enabled after reset;
- upgraded the qsys system to Altera Quartus 14.0;

.gitignore

@@ -0,0 +1,2 @@
+/ao486_tool/build/
+/ao486_tool/dist/

README.md

@@ -6,7 +6,8 @@ Together with the 486 core, the ao486 project also contains a SoC capable of
 booting the Linux kernel version 3.13 and Microsoft Windows 95.
 
 ### Current status
-- 31 March 2014 - initial version 1.0.
+- 31 March 2014  - initial version 1.0.
+- 19 August 2014 - driver_sd update, ps2 fix.
 
 ### Features
 

rtl/ao486/ao486.v

@@ -30,8 +30,6 @@ module ao486 (
     input               clk,
     input               rst_n,
 
-    input               rst_internal_n,
-
     //--------------------------------------------------------------------------
     input               interrupt_do,
     input   [7:0]       interrupt_vector,
@@ -154,7 +152,7 @@ wire        exc_pf_check;
 
 exception exception_inst(
     .clk                (clk),
-    .rst_n              (rst_internal_n),
+    .rst_n              (rst_n),
 
     //exception indicators
     .dec_gp_fault                  (dec_gp_fault),                  //input
@@ -342,7 +340,7 @@ wire [31:0] glob_desc_2_limit;
 
 global_regs global_regs_inst(
     .clk                (clk),
-    .rst_n              (rst_internal_n),
+    .rst_n              (rst_n),
 
     //input
     .glob_param_1_set              (glob_param_1_set),              //input
@@ -450,7 +448,6 @@ wire        wr_reset;
 memory memory_inst(
     .clk                (clk),
     .rst_n              (rst_n),
-    .rst_internal_n     (rst_internal_n),
 
     //REQ:
     .read_do                       (read_do),                       //input
@@ -564,7 +561,7 @@ memory memory_inst(
 
 pipeline pipeline_inst(
     .clk                (clk),
-    .rst_n              (rst_internal_n),
+    .rst_n              (rst_n),
 
     //to memory
     .pr_reset                      (pr_reset),                      //output

rtl/ao486/ao486_hw.tcl

@@ -1,18 +1,18 @@
-# TCL File Generated by Component Editor 13.1
-# Sun Mar 30 12:22:06 CEST 2014
+# TCL File Generated by Component Editor 14.0
+# Mon Aug 18 22:50:23 CEST 2014
 # DO NOT MODIFY
 
 
 # 
 # ao486 "ao486" v1.0
-#  2014.03.30.12:22:06
+#  2014.08.18.22:50:23
 # 
 # 
 
 # 
-# request TCL package from ACDS 13.1
+# request TCL package from ACDS 14.0
 # 
-package require -exact qsys 13.1
+package require -exact qsys 14.0
 
 
 # 
@@ -28,9 +28,9 @@ set_module_property AUTHOR ""
 set_module_property DISPLAY_NAME ao486
 set_module_property INSTANTIATE_IN_SYSTEM_MODULE true
 set_module_property EDITABLE true
-set_module_property ANALYZE_HDL AUTO
 set_module_property REPORT_TO_TALKBACK false
 set_module_property ALLOW_GREYBOX_GENERATION false
+set_module_property REPORT_HIERARCHY false
 
 
 # 
@@ -39,6 +39,7 @@ set_module_property ALLOW_GREYBOX_GENERATION false
 add_fileset QUARTUS_SYNTH QUARTUS_SYNTH "" ""
 set_fileset_property QUARTUS_SYNTH TOP_LEVEL ao486
 set_fileset_property QUARTUS_SYNTH ENABLE_RELATIVE_INCLUDE_PATHS false
+set_fileset_property QUARTUS_SYNTH ENABLE_FILE_OVERWRITE_MODE false
 add_fileset_file ao486.v VERILOG PATH ao486.v TOP_LEVEL_FILE
 add_fileset_file avalon_io.v VERILOG PATH avalon_io.v
 add_fileset_file defines.v VERILOG PATH defines.v
@@ -158,6 +159,7 @@ set_interface_property avalon_memory doStreamWrites false
 set_interface_property avalon_memory holdTime 0
 set_interface_property avalon_memory linewrapBursts false
 set_interface_property avalon_memory maximumPendingReadTransactions 0
+set_interface_property avalon_memory maximumPendingWriteTransactions 0
 set_interface_property avalon_memory readLatency 0
 set_interface_property avalon_memory readWaitTime 1
 set_interface_property avalon_memory setupTime 0
@@ -185,16 +187,16 @@ add_interface_port avalon_memory avm_readdata readdata Input 32
 # 
 add_interface interrupt conduit end
 set_interface_property interrupt associatedClock clock
-set_interface_property interrupt associatedReset reset_sink
+set_interface_property interrupt associatedReset ""
 set_interface_property interrupt ENABLED true
 set_interface_property interrupt EXPORT_OF ""
 set_interface_property interrupt PORT_NAME_MAP ""
 set_interface_property interrupt CMSIS_SVD_VARIABLES ""
 set_interface_property interrupt SVD_ADDRESS_GROUP ""
 
-add_interface_port interrupt interrupt_do export Input 1
-add_interface_port interrupt interrupt_vector export Input 8
-add_interface_port interrupt interrupt_done export Output 1
+add_interface_port interrupt interrupt_do interrupt_do Input 1
+add_interface_port interrupt interrupt_vector interrupt_vector Input 8
+add_interface_port interrupt interrupt_done interrupt_done Output 1
 
 
 # 
@@ -212,6 +214,7 @@ set_interface_property avalon_io doStreamWrites false
 set_interface_property avalon_io holdTime 0
 set_interface_property avalon_io linewrapBursts false
 set_interface_property avalon_io maximumPendingReadTransactions 0
+set_interface_property avalon_io maximumPendingWriteTransactions 0
 set_interface_property avalon_io readLatency 0
 set_interface_property avalon_io readWaitTime 1
 set_interface_property avalon_io setupTime 0
@@ -232,18 +235,3 @@ add_interface_port avalon_io avalon_io_write write Output 1
 add_interface_port avalon_io avalon_io_writedata writedata Output 32
 add_interface_port avalon_io avalon_io_waitrequest waitrequest Input 1
 
-
-# 
-# connection point reset_only_ao486
-# 
-add_interface reset_only_ao486 reset end
-set_interface_property reset_only_ao486 associatedClock clock
-set_interface_property reset_only_ao486 synchronousEdges DEASSERT
-set_interface_property reset_only_ao486 ENABLED true
-set_interface_property reset_only_ao486 EXPORT_OF ""
-set_interface_property reset_only_ao486 PORT_NAME_MAP ""
-set_interface_property reset_only_ao486 CMSIS_SVD_VARIABLES ""
-set_interface_property reset_only_ao486 SVD_ADDRESS_GROUP ""
-
-add_interface_port reset_only_ao486 rst_internal_n reset_n Input 1
-