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| author | Wojciech Kosior <kwojtus@protonmail.com> | 2020-09-05 17:20:38 +0200 |
|---|---|---|
| committer | Wojciech Kosior <kwojtus@protonmail.com> | 2020-09-05 17:20:38 +0200 |
| commit | d5c877247834fc25689ca6cf7530cd8d1b870d3a (patch) | |
| tree | 261c4382f22f4a0918a60f4e899b0e41850b4636 /design | |
| parent | ba4d97ddc2133c905e668c2f916cf3b14be4e35d (diff) | |
| download | AGH-engineering-thesis-d5c877247834fc25689ca6cf7530cd8d1b870d3a.tar.gz AGH-engineering-thesis-d5c877247834fc25689ca6cf7530cd8d1b870d3a.zip | |
add swap instruction together with bench
Diffstat (limited to 'design')
| -rw-r--r-- | design/stack_machine.v | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/design/stack_machine.v b/design/stack_machine.v index 868a103..0ccc1c6 100644 --- a/design/stack_machine.v +++ b/design/stack_machine.v @@ -182,6 +182,10 @@ module stack_machine_new assign instr_nop = !set_im && !use_im && stack_same_size && instruction[11:0] == 12'd1; + wire instr_swap; + assign instr_swap = !set_im && !use_im && stack_same_size && + instruction[11:0] == 12'd2; + wire instr_set_sp; assign instr_set_sp = use_im && stack_same_size && instruction[11:7] == 5'd0; @@ -439,6 +443,9 @@ module stack_machine_new if (instr_nop) r1 <= r1; + if (instr_swap) + {r0, r1} <= {r1, r0}; + if (instr_set_sp) `SET_SP(im_effective); |