Initial work on decoder

Decode the LD SP, $nnnn instruction as our first three-byte instruction.
2021-02-16 21:13:50 +00:00
parent 3191a19f7e
commit aa92344d10
7 changed files with 130 additions and 19 deletions
--- a/build/tb_top.Makefile
+++ b/build/tb_top.Makefile
@@ -1,5 +1,5 @@
 TB       = tb_top
-SOURCES  = gb.sv cpu.sv registers.sv control.sv rom.sv tb_top.sv clkgen.sv
+SOURCES  = gb.sv cpu.sv registers.sv control.sv decode.sv rom.sv tb_top.sv clkgen.sv
 PATH_SRC = ../rtl:../rtl/cpu:../rtl/shared:../sim/tbench:../sim/shared

 gb.sdb:  cpu.sdb rom.sdb