From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 11 May 2019 10:43:49 +0000 (+0100)
Subject: add in function units to score6600
X-Git-Tag: div_pipeline~2073
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c8797fac4cc62f38e94da50f6e79e86377341b82;p=soc.git

add in function units to score6600
---

diff --git a/src/experiment/score6600.py b/src/experiment/score6600.py
index 925445e7..763a3bfc 100644
--- a/src/experiment/score6600.py
+++ b/src/experiment/score6600.py
@@ -143,7 +143,7 @@ class Scoreboard(Elaboratable):
         # and int function issue / busy arrays, and dest/src1/src2
         fn_busy_l = []
         fn_issue_l = []
-        for i, alu in enumerate(int_alus):
+        for i, fu in enumerate(if_l):
             fn_issue_l.append(fu.issue_i)
             fn_busy_l.append(fu.busy_o)
             m.d.sync += fu.issue_i.eq(issueunit.i.fn_issue_o[i])
@@ -174,6 +174,11 @@ class Scoreboard(Elaboratable):
 
         m.d.comb += intfudeps.issue_i.eq(fn_issue_o)
 
+        # Connect INT Fn Unit global wr/rd pending
+        for fu in if_l:
+            m.d.comb += fu.g_int_wr_pend_i.eq(g_int_wr_pend_v.g_pend_o)
+            m.d.comb += fu.g_int_rd_pend_i.eq(g_int_rd_pend_v.g_pend_o)
+
         #---------
         # connect fu-dep matrix
         #---------
@@ -212,10 +217,12 @@ class Scoreboard(Elaboratable):
 
         # connect ALUs
         for i, alu in enumerate(int_alus):
-            m.d.comb += alu.go_rd_i.eq(go_rd_i[i])
-            m.d.comb += alu.go_wr_i.eq(go_wr_i[i])
+            m.d.comb += alu.go_rd_i.eq(if_l[i].go_rd_i)
+            m.d.comb += alu.go_wr_i.eq(if_l[i].go_wr_i)
+            m.d.comb += alu.issue_i.eq(fn_issue_l[i])
             m.d.comb += alu.src1_i.eq(int_src1.data_o)
             m.d.comb += alu.src2_i.eq(int_src2.data_o)
+            m.d.comb += if_l[i].req_rel_i.eq(alu.req_rel_o) # pipe out ready
 
         return m