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start local declarations

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pommicket 2022-02-05 18:41:01 -05:00
parent d718819ee7
commit ebe96b9e85
4 changed files with 187 additions and 8 deletions
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05/constants.b
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@ -260,7 +260,7 @@
; 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 (automatic/"register" storage duration), data1 = total bytes used by all local variables so far in this function including this one; data2,3,4 unused
; - STATEMENT_LOCAL_DECLARATION - declaring a local variable, data1 = rbp offset, data2 = size of 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