diff options
Diffstat (limited to '05/constants.b')
| -rw-r--r-- | 05/constants.b | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/05/constants.b b/05/constants.b index f02ffaf..7bcc2aa 100644 --- a/05/constants.b +++ b/05/constants.b @@ -160,7 +160,7 @@ ; - for unary operators, the operand ; - for casts, the operand (type is given by type member) ; - for binary operators, the first operand followed by the second -; - for the operators . and ->, the first argument is the expression on the left-hand side, and the second argument is a 64-bit offset. +; - for the operators . and ->, first the expression on the left-hand side, then the 32-bit offset, then a 32-bit number which is 1 if the member is an array ; - for the ternary operator ? :, the first followed by the second followed by the third ; - for function calls, the function, followed by each of the arguments to the function, followed by 8 bytes of zeros ; File/line number are not stored in expressions. @@ -271,7 +271,7 @@ ; a type of 0 indicates the end of the block. ; data layout for particular statements: ; - STATEMENT_EXPRESSION - data1 is a pointer to expression data; data2,3,4 are unused -; - STATEMENT_LOCAL_DECLARATION - declaring a local variable, data1 = rbp - rsp BEFORE variable is pushed, data2 = type, data3 = initializer expression or 0, data4 = initializer memory address to copy from (for braced initializers) or 0 +; - STATEMENT_LOCAL_DECLARATION - declaring a local variable, data1 = signed offset from rbp of variable, data2 = type, data3 = initializer expression or 0, data4 = initializer memory address to copy from (for braced initializers) or 0 ; - STATEMENT_LABEL - data1 is a pointer to the name of the label; data2,3,4 are unused ; - STATEMENT_BLOCK - data1 is a pointer to an array of statements; data2,3,4 are unused ; - STATEMENT_IF - data1 is a pointer to the condition, data2 is a pointer to the `if' branch statement, data3 is a pointer to the `else' branch statement, or 0 if there is none; data4 is unused |