diff options
Diffstat (limited to 'cpu')
-rw-r--r-- | cpu/ChangeLog | 4 | ||||
-rw-r--r-- | cpu/or1korbis.cpu | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/cpu/ChangeLog b/cpu/ChangeLog index 8755ee7..1729efd 100644 --- a/cpu/ChangeLog +++ b/cpu/ChangeLog @@ -1,3 +1,7 @@ +2019-12-20 Alan Modra <amodra@gmail.com> + + * or1korbis.cpu (f-disp26, f-disp21): Don't left shift negative values. + 2019-12-17 Alan Modra <amodra@gmail.com> * bpf.cpu (f-imm64): Avoid signed overflow. diff --git a/cpu/or1korbis.cpu b/cpu/or1korbis.cpu index 3741d4c..a8002a3 100644 --- a/cpu/or1korbis.cpu +++ b/cpu/or1korbis.cpu @@ -76,7 +76,7 @@ 26 INT ((value pc) (sra IAI (sub IAI value pc) (const 2))) - ((value pc) (add IAI (sll IAI value (const 2)) pc)) + ((value pc) (add IAI (mul IAI value (const 4)) pc)) ) ; PC relative, 21-bit, 13 shifted to right, aligned. @@ -91,7 +91,7 @@ ((value pc) (sub IAI (sra IAI value (const 13)) (sra IAI pc (const 13)))) ((value pc) - (sll IAI (add IAI value (sra IAI pc (const 13))) (const 13))) + (mul IAI (add IAI value (sra IAI pc (const 13))) (const 8192))) ) ; Immediates. |