diff options
| author | Wojciech Kosior <kwojtus@protonmail.com> | 2020-09-05 18:57:00 +0200 |
|---|---|---|
| committer | Wojciech Kosior <kwojtus@protonmail.com> | 2020-09-05 18:57:00 +0200 |
| commit | 92206c93690c5658928c9f8b1324e1a455e1a453 (patch) | |
| tree | 317283feedacfa01f5ad2340c20bfea3e42b86b4 /design | |
| parent | f37a50d6cfe86e6f5ebe368c0868878fd72aa884 (diff) | |
| download | AGH-engineering-thesis-92206c93690c5658928c9f8b1324e1a455e1a453.tar.gz AGH-engineering-thesis-92206c93690c5658928c9f8b1324e1a455e1a453.zip | |
add cond_jump instruction together with bench
Diffstat (limited to 'design')
| -rw-r--r-- | design/stack_machine.v | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/design/stack_machine.v b/design/stack_machine.v index 150f6c7..b6c2706 100644 --- a/design/stack_machine.v +++ b/design/stack_machine.v @@ -220,6 +220,10 @@ module stack_machine_new assign instr_mul = !set_im && !use_im && stack_shrinks_by_1 && instruction[11:0] == 12'd3; + wire instr_cond_jump; + assign instr_cond_jump = use_im && stack_shrinks_by_1 && + instruction[11:7] == 5'd1; + reg halt; /* Set once a halt instruction is encountered */ assign finished = halt; @@ -519,6 +523,13 @@ module stack_machine_new if (instr_mul && arithmetic_uncompleted) r1 <= r0 * r1; + + if (instr_cond_jump && arithmetic_uncompleted) begin + r1 <= r0; + + if (r1) + `SET_PC(im_effective); + end end // case: STEP_EXECUTING endcase // case (step) end // else: !if(RST_I) |