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Struct Code generation

Struct Code generation. code example 1. Struct simple { int one; int two; } simple j; void main ( ) { j.two = 1; }. code example 1. Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4. Struct simple { int one; int two; } simple j;

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Struct Code generation

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  1. Struct Code generation

  2. code example 1 Struct simple { int one; int two; } simple j; void main ( ) { j.two = 1; }

  3. code example 1 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Struct simple { int one; int two; } simple j; void main ( ) { j.two = 1; }

  4. code example 1 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Struct simple { int one; int two; } simple j; void main ( ) { j.two = 1; } DataFrame j db 0x0 dup(8)

  5. code example 1 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Struct simple { int one; int two; } simple j; void main ( ) { j.two = 1; } DataFrame j db 0x0 dup(8) Calc of address of j.one mov r1, j add r1, 4 ; two.fieldstart

  6. code example 1 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Struct simple { int one; int two; } simple j; void main ( ) { j.two = 1; } DataFrame j db 0x0 dup(8) CodeFrame mov r1, j add r1, 4 push r1 push 1 pop r2 pop r1 mov [r1], r2 Calc of address of j.one mov r1, j add r1, 4 ; two.fieldstart

  7. code example 2 Struct simple { int one; int two; } simple [] j = new simple 3; void main ( ) { j[1].two = 1; }

  8. code example 2 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Entry Type Elements ElSize j array 3 8 Struct simple { int one; int two; } simple [] j = new simple 3; void main ( ) { j[1].two = 1; }

  9. code example 2 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Entry Type Elements ElSize j array 3 8 Struct simple { int one; int two; } simple [] j = new simple 3; void main ( ) { j[1].two = 1; } DataFrame j db 0x0 dup(24)

  10. code example 2 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Entry Type Elements ElSize j array 3 8 Struct simple { int one; int two; } simple [] j = new simple 3; void main ( ) { j[1].two = 1; } DataFrame j db 0x0 dup(24) Calc of address of j[1].two mov r1, j mov r2, 8 ; ElSize mul r2, 1 ; add r1,r2 ; j[1] add r1, 4 ; two.fieldstart

  11. code example 2 Symbol Table Entry Type size fields fieldsize fieldstart simple struct 8 one 4 0 two 4 4 Entry Type Elements ElSize j array 3 8 Struct simple { int one; int two; } simple [] j = new simple 3; void main ( ) { j[1].two = 1; } DataFrame j db 0x0 dup(24) CodeFrame mov r1, j mov r2,8 mul r2,1 add r1,r2 add r1, 4 push r1 push 1 pop r2 pop r1 mov [r1], r2 Calc of address of j[1].two mov r1, j mov r2, 8 ; ElSize mul r2, 1 ; add r1,r2 ; j[1] add r1, 4 ; two.fieldstart

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