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fixed local variables and also structs containing arrays

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pommicket 2022-02-13 14:24:38 -05:00
parent 24f260fa16
commit 239a1a3c27
5 changed files with 76 additions and 44 deletions
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4
05/constants.b
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@ -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