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| author | Kartik Agaram <vc@akkartik.com> | 2020-07-09 12:32:07 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-07-09 12:32:07 -0700 |
| commit | c532373e29928f1b8a2085038b000c3213ce4523 (patch) | |
| tree | f57add30f78311ea906c431f3782f42907c913e6 /apps/mu.subx | |
| parent | cb0a41f588d3953c38324ce9b9d3481aeb2236d2 (diff) | |
| download | mu-c532373e29928f1b8a2085038b000c3213ce4523.tar.gz | |
6626
Diffstat (limited to 'apps/mu.subx')
| -rw-r--r-- | apps/mu.subx | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/apps/mu.subx b/apps/mu.subx index 7ed9e548..5e72bb8b 100644 --- a/apps/mu.subx +++ b/apps/mu.subx @@ -365,6 +365,8 @@ Type-tree-is-atom: # boolean # if left-is-atom? Type-tree-value: # type-id 4/imm32 +Type-tree-value-size: # int (for static data structure sizes) + 8/imm32 # unless left-is-atom? Type-tree-left: # (addr type-tree) 4/imm32 @@ -392,7 +394,9 @@ Type-id: # (stream (addr array byte)) "offset"/imm32 # 7: (offset T) is guaranteed to be a 32-bit multiple of size-of(T) # 0x20 "byte"/imm32 # 8 - 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 + 0/imm32 # 9 reserved for array-capacity; value is in Type-tree-size + # Not to be used directly, so we don't include a name here. + 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 0/imm32 @@ -6673,7 +6677,7 @@ parse-type: # ad: (addr allocation-descriptor), in: (addr stream byte), out: (a (slice-equal? %ecx "(") # => eax 3d/compare-eax-and 0/imm32/false 75/jump-if-!= break/disp8 - # EGREGIOUS HACK for static array sizes: if s is a number, parse it + # if s is a number, store it in the type's size field { $parse-type:check-for-int: (is-hex-int? %ecx) # => eax @@ -6681,7 +6685,8 @@ $parse-type:check-for-int: 74/jump-if-= break/disp8 $parse-type:int: (parse-hex-int-from-slice %ecx) # => eax - 89/<- *(edx+4) 0/r32/eax # Type-tree-value + c7 0/subop/copy *(edx+4) 9/imm32/type-id-array-capacity # Type-tree-value + 89/<- *(edx+8) 0/r32/eax # Type-tree-value-size e9/jump $parse-type:end/disp32 } $parse-type:atom: @@ -11739,10 +11744,11 @@ size-of-array: # a: (addr type-tree) -> result/eax: int # var elem-type/edx: type-id = a->right->left->value (lookup *(ecx+4) *(ecx+8)) # Type-tree-left Type-tree-left => eax 8b/-> *(eax+4) 2/r32/edx # Type-tree-value - # var array-size/ecx: int = a->right->right->left->value + # TODO: assert that a->right->right->left->value == size + # var array-size/ecx: int = a->right->right->left->value-size (lookup *(ecx+0xc) *(ecx+0x10)) # Type-tree-right Type-tree-right => eax (lookup *(eax+4) *(eax+8)) # Type-tree-left Type-tree-left => eax - 8b/-> *(eax+4) 1/r32/ecx # Type-tree-value + 8b/-> *(eax+8) 1/r32/ecx # Type-tree-value-size # return array-size * size-of(elem-type) (size-of-type-id-as-array-element %edx) # => eax f7 4/subop/multiply-into-eax %ecx |