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- some new control signals in cop0_ctrl

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- added exc-Flag in WB_stage
- simplified int signals

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git-svn-id: http://moon:8086/svn/vhdl/trunk@428 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2009-04-11 08:37:11 +00:00
parent b5b15b90e2
commit f34847adb1
1 changed files with 9 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/CPUs/MIPS/src/core/mips_types.vhd
+9 -11
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@@ -213,7 +213,7 @@ package mips_types is
end record;
type event_t is record
Int : unsigned(5 downto 0);
Int : STD_LOGIC;
data_load_err : STD_LOGIC;
data_store_err : STD_LOGIC;
inst_load_err : STD_LOGIC;
@@ -259,11 +259,13 @@ package mips_types is
epc_wb : word_t;
imem_addr : word_t;
dmem_addr : word_t;
exc_left : STD_LOGIC;
exc_req : STD_LOGIC;
exc_ack : STD_LOGIC;
end record;
type cop0_ctrl_out_t is record
RE : STD_LOGIC;
exc_inject : STD_LOGIC;
exc_commit : STD_LOGIC;
exc_pending : STD_LOGIC;
exc_exit : STD_LOGIC;
@@ -393,8 +395,9 @@ package mips_types is
type WB_t is record
nop : STD_LOGIC;
exc : std_logic;
events : event_t;
op : op_t;
epc : word_t;
reg_wptr : reg_ptr_t;
wreg_we : STD_LOGIC;
data : word_t;
@@ -593,7 +596,7 @@ package body mips_types is
function events_clr return event_t is
variable result : event_t;
begin
result.Int := (others => '0');
result.Int := '0';
result.data_load_err := '0';
result.data_store_err := '0';
result.inst_load_err := '0';
@@ -614,10 +617,7 @@ package body mips_types is
begin
result := '0';
for i in e.Int'range loop
result := result or e.Int(i);
end loop;
result := result or e.Int;
result := result or e.data_load_err;
result := result or e.data_store_err;
result := result or e.inst_load_err;
@@ -636,9 +636,7 @@ package body mips_types is
function "or" (a, b : event_t) return event_t is
variable result : event_t;
begin
for i in a.Int'range loop
result.Int(i) := a.Int(i) or b.Int(i);
end loop;
result.Int := a.Int or b.Int;
result.data_load_err := a.data_load_err or b.data_load_err;
result.data_store_err := a.data_store_err or b.data_store_err;
result.inst_load_err := a.inst_load_err or b.inst_load_err;