New assembler stuff...
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xolatile
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925672eed0
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a00f0cd6cd
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@ -9,69 +9,114 @@ static void byte_push (byte data) {
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byte_count += 1;
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}
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static form lower (form data) { return ((data >= 0) && (data <= 7)); }
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static form upper (form data) { return ((data >= 8) && (data <= 15)); }
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static inline form valid (form data) { return ((data => 0) && (data <= 15)); }
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static inline form lower (form data) { return ((data => 0) && (data <= 7)); }
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static inline form upper (form data) { return ((data => 8) && (data <= 15)); }
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static void format_prefix (size_index size,
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type_index type,
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form destination,
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form source) {
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byte format = 0X00;
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//~static inline void format_prefix (size_index size,
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//~type_index destination,
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//~type_index source) {
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//~if (size == SIZE_16B) {
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//~byte_push (0X66);
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//~} else if (size == SIZE_64B) {
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//~byte format = 0X48;
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//~if (destination == TYPE_REGISTER) {
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//~format += upper (destination) * 0X01;
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//~}
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//~if (source == TYPE_REGISTER) {
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//~format += upper (source) * 0X04;
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//~}
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//~byte_push (format);
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//~} else {
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//~return;
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//~}
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//~}
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if (size == size_16b) byte_push (0X66);
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//~static inline void format_rex_prefix (size_index size,
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//~type_index destination,
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//~type_index source) {
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//~byte format = 0X40;
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if (size == size_64b) format += 0X48;
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if (size == size_32b) format += 0X48;
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if (size == size_64b) format += 0X48;
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if (size == size_64b) format += 0X48;
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//~byte_push (format);
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//~}
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if (upper (destination)) format += 0X01;
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if (upper (source)) format += 0X04;
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static inline void format_register_direction (size_index size,
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form to,
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form from) {
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byte format = 0XC0;
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error (valid (to), "Invalid destination register index.");
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error (valid (from), "Invalid source register index.");
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format += 1 * (to % 8);
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format += 8 * (from % 8);
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byte_push (format);
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}
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static void format_operation (size_index size,
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type_index type,
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form destination,
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form source) {
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byte format = 0X00;
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static inline void format_register_indirection (size_index size,
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form to) {
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byte format = 0XF0;
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switch (type) {
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case type_register_register: format += 0X30; break;
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case type_register_variable: format += 0X32; break;
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case type_register_constant: format += 0X80; break;
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case type_variable_register: format += 0X30; break;
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case type_variable_constant: format += 0X80; break;
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default: exit (EXIT_FAILURE);
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}
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error (valid (to), "Invalid destination register index.");
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if (size != size_8b) format += 0X01;
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if (type == type_register_constant) format -= (destination == 0) * 0X3A;
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format += to % 8;
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byte_push (format);
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}
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static void format_modifier (size_index size,
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type_index type,
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form destination,
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form source) {
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byte format = 0X00;
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static inline void format_register_redirection (size_index size,
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form direction) {
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byte format = 0X05;
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error (valid (direction), "Invalid direction register index.");
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format += 8 * (direction % 8);
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byte_push (format);
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}
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void assemble_xor (size_index size,
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type_index type,
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form destination,
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form source) {
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if (size == size_256b) exit (EXIT_FAILURE);
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if (size == size_128b) exit (EXIT_FAILURE);
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//~static inline void format_operation (size_index size,
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//~type_index type,
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//~form destination,
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//~form source) {
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//~byte format = 0X00;
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format_prefix (size, type, destination, source);
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format_operation (size, type, destination, source);
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format_modifier (size, type, destination, source);
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//~switch (type) {
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//~case type_register_register: format += 0X30; break;
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//~case type_register_variable: format += 0X32; break;
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//~case type_register_constant: format += 0X80; break;
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//~case type_variable_register: format += 0X30; break;
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//~case type_variable_constant: format += 0X80; break;
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//~default: exit (EXIT_FAILURE);
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//~}
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// ...
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}
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//~if (size != size_8b) format += 0X01;
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//~if (type == type_register_constant) format -= (destination == 0) * 0X3A;
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//~byte_push (format);
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//~}
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//~static inline void format_modifier (size_index size,
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//~type_index type,
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//~form destination,
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//~form source) {
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//~byte format = 0X00;
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//~byte_push (format);
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//~}
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//~static void assemble_xor (size_index size,
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//~type_index type,
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//~form destination,
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//~form source) {
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//~if (size == size_256b) exit (EXIT_FAILURE);
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//~if (size == size_128b) exit (EXIT_FAILURE);
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//~format_prefix (size, type, destination, source);
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//~format_operation (size, type, destination, source);
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//~format_modifier (size, type, destination, source);
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//~// ...
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//~}
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@ -4,73 +4,38 @@
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#include <stdlib.h>
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typedef enum {
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size_256b, size_128b, size_64b,
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size_32b, size_16b, size_8b,
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SIZE_256B, SIZE_128B, SIZE_64B,
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SIZE_32B, SIZE_16B, SIZE_8B,
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} size_index;
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typedef enum {
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type_register_register, type_register_variable, type_register_constant,
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type_variable_register, type_variable_constant,
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TYPE_REGISTER, TYPE_VARIABLE, TYPE_CONSTANT,
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} type_index;
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typedef enum {
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operation_move, operation_add, operation_subtract,
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operation_multiply, operation_divide, operation_modulus,
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operation_compare, operation_jump, operation_xor,
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operation_and, operation_or, operation_not,
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operation_is, operation_above, operation_below,
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operation_if, operation_increment, operation_decrement,
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operation_system, operation_call, operation_return,
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operation_enter, operation_leave, operation_exit,
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OPERATION_MOVE, OPERATION_ADD, OPERATION_SUBTRACT,
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OPERATION_MULTIPLY, OPERATION_DIVIDE, OPERATION_MODULUS,
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OPERATION_COMPARE, OPERATION_JUMP, OPERATION_XOR,
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OPERATION_AND, OPERATION_OR, OPERATION_NOT,
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OPERATION_IS, OPERATION_ABOVE, OPERATION_BELOW,
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OPERATION_IF, OPERATION_INCREMENT, OPERATION_DECREMENT,
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OPERATION_SYSTEM, OPERATION_CALL, OPERATION_RETURN,
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OPERATION_ENTER, OPERATION_LEAVE, OPERATION_EXIT,
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} operation_index;
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typedef enum {
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operand_rax, operand_rcx, operand_rdx,
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operand_rbx, operand_rsi, operand_rdi,
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operand_rsp, operand_rbp, operand_r8,
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operand_r9, operand_r10, operand_r11,
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operand_r12, operand_r13, operand_r14,
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operand_r15,
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} operand_64b_index;
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typedef enum {
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operand_eax, operand_ecx, operand_edx,
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operand_ebx, operand_esi, operand_edi,
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operand_esp, operand_ebp, operand_r8d,
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operand_r9d, operand_r10d, operand_r11d,
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operand_r12d, operand_r13d, operand_r14d,
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operand_r15d,
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} operand_32b_index;
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typedef enum {
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operand_ax, operand_cx, operand_dx,
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operand_bx, operand_si, operand_di,
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operand_sp, operand_bp, operand_r8w,
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operand_r9w, operand_r10w, operand_r11w,
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operand_r12w, operand_r13w, operand_r14w,
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operand_r15w,
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} operand_16b_index;
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typedef enum {
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operand_al, operand_cl, operand_dl,
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operand_bl, operand_sil, operand_dil,
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operand_spl, operand_bpl, operand_r8b,
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operand_r9b, operand_r10b, operand_r11b,
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operand_r12b, operand_r13b, operand_r14b,
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operand_r15b,
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} operand_8b_index;
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typedef enum {
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command_operation, command_size, command_operand_d,
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command_operand_s,
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command_length,
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} command_index;
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OPERAND_REGISTER_0, OPERAND_REGISTER_1, OPERAND_REGISTER_2,
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OPERAND_REGISTER_3, OPERAND_REGISTER_4, OPERAND_REGISTER_5,
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OPERAND_REGISTER_6, OPERAND_REGISTER_7, OPERAND_REGISTER_8,
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OPERAND_REGISTER_9, OPERAND_REGISTER_A, OPERAND_REGISTER_B,
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OPERAND_REGISTER_C, OPERAND_REGISTER_D, OPERAND_REGISTER_E,
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OPERAND_REGISTER_F, OPERAND_REFERENCE, OPERAND_DEREFERENCE,
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} operand_index;
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typedef signed int form;
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typedef unsigned int next;
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typedef unsigned char byte;
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void assemble_xor (size_index size, type_index type, form destination, form source);
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// size, operation, type, operand/form, type, operand/form
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#endif
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