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| author | Kartik Agaram <vc@akkartik.com> | 2020-11-17 22:05:45 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-11-17 22:05:45 -0800 |
| commit | 729800593ad08e168328bb397e843a90ccf2363a (patch) | |
| tree | aeabef3ed93d1aaf0154b9a9559edb4b7628defa /mu_instructions | |
| parent | 396a7ef69150ef74694e8c8a88f951bed7d01ef4 (diff) | |
| download | mu-729800593ad08e168328bb397e843a90ccf2363a.tar.gz | |
7266
Diffstat (limited to 'mu_instructions')
| -rw-r--r-- | mu_instructions | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mu_instructions b/mu_instructions index bd00e7a4..ba8dd2cf 100644 --- a/mu_instructions +++ b/mu_instructions @@ -313,17 +313,17 @@ var/reg: (addr T) <- address var2: T # Array operations -var/reg <- index arr/rega: (addr array T), idx/regi: int +var/reg: (addr T) <- index arr/rega: (addr array T), idx/regi: int | if size-of(T) is 1, 2, 4 or 8 => "(__check-mu-array-bounds *" rega " %" regi " " size-of(T) ")" "8d/copy-address *(" rega "+" regi "<<" log2(size-of(T)) "+4) " reg "/r32" -var/reg <- index arr: (array T len), idx/regi: int +var/reg: (addr T) <- index arr: (array T len), idx/regi: int => "(__check-mu-array-bounds *(ebp+" arr.stack-offset ") %" regi " " size-of(T) ")" "8d/copy-address *(ebp+" regi "<<" log2(size-of(T)) "+" (arr.stack-offset + 4) ") " reg "/r32" -var/reg <- index arr/rega: (addr array T), n +var/reg: (addr T) <- index arr/rega: (addr array T), n => "(__check-mu-array-bounds *" rega " " n " " size-of(T) ")" "8d/copy-address *(" rega "+" (n*size-of(T)+4) ") " reg "/r32" -var/reg <- index arr: (array T len), n +var/reg: (addr T) <- index arr: (array T len), n => "(__check-mu-array-bounds *(ebp+" arr.stack-offset ") " n " " size-of(T) ")" "8d/copy-address *(ebp+" (arr.stack-offset+4+n*size-of(T)) ") " reg "/r32" @@ -331,13 +331,13 @@ var/reg: (offset T) <- compute-offset arr: (addr array T), idx/regi: int # arr => "69/multiply %" regi " " size-of(T) "/imm32 " reg "/r32" var/reg: (offset T) <- compute-offset arr: (addr array T), idx: int # arr can be in reg or mem => "69/multiply *(ebp+" idx.stack-offset ") " size-of(T) "/imm32 " reg "/r32" -var/reg <- index arr/rega: (addr array T), o/rego: (offset T) +var/reg: (addr T) <- index arr/rega: (addr array T), o/rego: (offset T) => "(__check-mu-array-bounds %" rega " %" rego " 1 \"" function-name "\")" "8d/copy-address *(" rega "+" rego "+4) " reg "/r32" Computing the length of an array is complex. -var/reg <- length arr/reg2: (addr array T) +var/reg: int <- length arr/reg2: (addr array T) | if T is byte (TODO) => "8b/-> *" reg2 " " reg "/r32" | if size-of(T) is 4 or 8 or 16 or 32 or 64 or 128 |