diff options
| author | Alejandro Soto <alejandro@34project.org> | 2022-12-18 00:22:13 -0600 |
|---|---|---|
| committer | Alejandro Soto <alejandro@34project.org> | 2022-12-18 00:22:23 -0600 |
| commit | 6d458ad9629268ecfc69881b4fb10dca0498fbd0 (patch) | |
| tree | ea149276a31f518788c758899ab5ced8a8a8b74c /tb | |
| parent | ca8b6e6696e279f56faacad39501019c3762a1b7 (diff) | |
Fix datapath of shifter carry-out during adc/sbc/rsc
Diffstat (limited to 'tb')
| -rw-r--r-- | tb/sim/shifts.S | 3 | ||||
| -rw-r--r-- | tb/sim/shifts.py | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/tb/sim/shifts.S b/tb/sim/shifts.S index 6209157..ba464f7 100644 --- a/tb/sim/shifts.S +++ b/tb/sim/shifts.S @@ -17,4 +17,7 @@ reset: ldr r4, =(512 << 20) ldr r5, =#60 lsr r4, r4, r5 + mov r5, #0 + ldr r12, =-123456 + adc r5, r5, r12, asr #18 mov pc, lr diff --git a/tb/sim/shifts.py b/tb/sim/shifts.py index 9923124..11413e5 100644 --- a/tb/sim/shifts.py +++ b/tb/sim/shifts.py @@ -3,3 +3,4 @@ def final(): assert_reg(r2, 0x00015000) assert_reg(r3, 0xaaa9fd55) assert_reg(r4, 0) + assert_reg(r5, -1) |