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Intel® X86 Encoder Decoder
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Data Structures | |
| struct | xed_immdis_s |
| Stores immediates and displacements for the encoder & decoder. More... | |
| union | xed_immdis_values_t |
Macros | |
| #define | XED_MAX_IMMDIS_BYTES 8 |
Typedefs | |
| typedef struct xed_immdis_s | xed_immdis_t |
| Stores immediates and displacements for the encoder & decoder. | |
Functions | |
| XED_DLL_EXPORT void | xed_immdis_init (xed_immdis_t *p, xed_uint_t max_bytes) |
Sizes and lengths | |
| XED_DLL_EXPORT unsigned int | xed_immdis_get_bytes (const xed_immdis_t *p) |
| return the number of bytes added | |
Accessors for the value of the immediate or displacement | |
| XED_DLL_EXPORT xed_uint8_t | xed_immdis_get_byte (const xed_immdis_t *p, unsigned int i) |
| Access the i'th byte of the immediate. | |
| XED_DLL_EXPORT xed_int64_t | xed_immdis_get_signed64 (const xed_immdis_t *p) |
| XED_DLL_EXPORT xed_uint64_t | xed_immdis_get_unsigned64 (const xed_immdis_t *p) |
| XED_DLL_EXPORT xed_bool_t | xed_immdis_is_one (const xed_immdis_t *p) |
| XED_DLL_EXPORT xed_bool_t | xed_immdis_is_zero (const xed_immdis_t *p) |
Presence / absence of an immediate or displacement | |
| XED_DLL_EXPORT xed_bool_t | xed_immdis_is_present (const xed_immdis_t *p) |
| True if the object has had a value or individual bytes added to it. | |
| XED_DLL_EXPORT void | xed_immdis_set_present (xed_immdis_t *p) |
Initialization and setup | |
| XED_DLL_EXPORT unsigned int | xed_immdis_get_max_length (const xed_immdis_t *p) |
| XED_DLL_EXPORT void | xed_immdis_set_max_len (xed_immdis_t *p, unsigned int mx) |
| XED_DLL_EXPORT void | xed_immdis_zero (xed_immdis_t *p) |
Signed vs Unsigned | |
| XED_DLL_EXPORT xed_bool_t | xed_immdis_is_signed (const xed_immdis_t *p) |
| Return true if signed. | |
| XED_DLL_EXPORT xed_bool_t | xed_immdis_is_unsigned (const xed_immdis_t *p) |
| Return true if signed. | |
| XED_DLL_EXPORT void | xed_immdis_set_signed (xed_immdis_t *p) |
| Set the immediate to be signed; For decoder use only. | |
| XED_DLL_EXPORT void | xed_immdis_set_unsigned (xed_immdis_t *p) |
| Set the immediate to be unsigned; For decoder use only. | |
Adding / setting values | |
| XED_DLL_EXPORT void | xed_immdis_add16 (xed_immdis_t *p, xed_int16_t d) |
| add a 16 bit value to the byte array | |
| XED_DLL_EXPORT void | xed_immdis_add32 (xed_immdis_t *p, xed_int32_t d) |
| add a 32 bit value to the byte array | |
| XED_DLL_EXPORT void | xed_immdis_add64 (xed_immdis_t *p, xed_int64_t d) |
| add a 64 bit value to the byte array. | |
| XED_DLL_EXPORT void | xed_immdis_add8 (xed_immdis_t *p, xed_int8_t d) |
| add an 8 bit value to the byte array | |
| XED_DLL_EXPORT void | xed_immdis_add_byte (xed_immdis_t *p, xed_uint8_t b) |
| XED_DLL_EXPORT void | xed_immdis_add_byte_array (xed_immdis_t *p, int nb, xed_uint8_t *ba) |
| XED_DLL_EXPORT void | xed_immdis_add_shortest_width_signed (xed_immdis_t *p, xed_int64_t x, xed_uint8_t legal_widths) |
| Add 1, 2, 4 or 8 bytes depending on the value x and the mask of legal_widths. | |
| XED_DLL_EXPORT void | xed_immdis_add_shortest_width_unsigned (xed_immdis_t *p, xed_uint64_t x, xed_uint8_t legal_widths) |
| See add_shortest_width_signed() | |
printing / debugging | |
| XED_DLL_EXPORT int | xed_immdis_print (const xed_immdis_t *p, char *buf, int buflen) |
| just print the raw bytes in hex with a leading 0x | |
| XED_DLL_EXPORT int | xed_immdis_print_signed_or_unsigned (const xed_immdis_t *p, char *buf, int buflen) |
| Print the value as a signed or unsigned number depending on the value of the immediate_is_unsigned variable. | |
| XED_DLL_EXPORT int | xed_immdis_print_value_signed (const xed_immdis_t *p, char *buf, int buflen) |
| print the signed value, appropriate width, with a leading 0x | |
| XED_DLL_EXPORT int | xed_immdis_print_value_unsigned (const xed_immdis_t *p, char *buf, int buflen) |
| print the unsigned value, appropriate width, with a leading 0x | |
| #define XED_MAX_IMMDIS_BYTES 8 |
| typedef struct xed_immdis_s xed_immdis_t |
Stores immediates and displacements for the encoder & decoder.
| XED_DLL_EXPORT void xed_immdis_add16 | ( | xed_immdis_t * | p, |
| xed_int16_t | d ) |
add a 16 bit value to the byte array
| XED_DLL_EXPORT void xed_immdis_add32 | ( | xed_immdis_t * | p, |
| xed_int32_t | d ) |
add a 32 bit value to the byte array
| XED_DLL_EXPORT void xed_immdis_add64 | ( | xed_immdis_t * | p, |
| xed_int64_t | d ) |
add a 64 bit value to the byte array.
| XED_DLL_EXPORT void xed_immdis_add8 | ( | xed_immdis_t * | p, |
| xed_int8_t | d ) |
add an 8 bit value to the byte array
| XED_DLL_EXPORT void xed_immdis_add_byte | ( | xed_immdis_t * | p, |
| xed_uint8_t | b ) |
| XED_DLL_EXPORT void xed_immdis_add_byte_array | ( | xed_immdis_t * | p, |
| int | nb, | ||
| xed_uint8_t * | ba ) |
| XED_DLL_EXPORT void xed_immdis_add_shortest_width_signed | ( | xed_immdis_t * | p, |
| xed_int64_t | x, | ||
| xed_uint8_t | legal_widths ) |
Add 1, 2, 4 or 8 bytes depending on the value x and the mask of legal_widths.
The default value of legal_widths = 0x5 only stops adding bytes only on 1 or 4 byte quantities - depending on which bytes of x are zero – as is used for most memory addressing. You can set legal_widths to 0x7 for branches (1, 2 or 4 byte branch displacements). Or if you have an 8B displacement, you can set legal_widths to 0x8. NOTE: add_shortest_width will add up to XED_MAX_IMMDIS_BYTES if the x value requires it. NOTE: 16b memory addressing can have 16b immediates.
| XED_DLL_EXPORT void xed_immdis_add_shortest_width_unsigned | ( | xed_immdis_t * | p, |
| xed_uint64_t | x, | ||
| xed_uint8_t | legal_widths ) |
See add_shortest_width_signed()
| XED_DLL_EXPORT xed_uint8_t xed_immdis_get_byte | ( | const xed_immdis_t * | p, |
| unsigned int | i ) |
Access the i'th byte of the immediate.
| XED_DLL_EXPORT unsigned int xed_immdis_get_bytes | ( | const xed_immdis_t * | p | ) |
return the number of bytes added
| XED_DLL_EXPORT unsigned int xed_immdis_get_max_length | ( | const xed_immdis_t * | p | ) |
| XED_DLL_EXPORT xed_int64_t xed_immdis_get_signed64 | ( | const xed_immdis_t * | p | ) |
| XED_DLL_EXPORT xed_uint64_t xed_immdis_get_unsigned64 | ( | const xed_immdis_t * | p | ) |
| XED_DLL_EXPORT void xed_immdis_init | ( | xed_immdis_t * | p, |
| xed_uint_t | max_bytes ) |
| XED_DLL_EXPORT xed_bool_t xed_immdis_is_one | ( | const xed_immdis_t * | p | ) |
| XED_DLL_EXPORT xed_bool_t xed_immdis_is_present | ( | const xed_immdis_t * | p | ) |
True if the object has had a value or individual bytes added to it.
| XED_DLL_EXPORT xed_bool_t xed_immdis_is_signed | ( | const xed_immdis_t * | p | ) |
Return true if signed.
| XED_DLL_EXPORT xed_bool_t xed_immdis_is_unsigned | ( | const xed_immdis_t * | p | ) |
Return true if signed.
| XED_DLL_EXPORT xed_bool_t xed_immdis_is_zero | ( | const xed_immdis_t * | p | ) |
| XED_DLL_EXPORT int xed_immdis_print | ( | const xed_immdis_t * | p, |
| char * | buf, | ||
| int | buflen ) |
just print the raw bytes in hex with a leading 0x
| XED_DLL_EXPORT int xed_immdis_print_signed_or_unsigned | ( | const xed_immdis_t * | p, |
| char * | buf, | ||
| int | buflen ) |
Print the value as a signed or unsigned number depending on the value of the immediate_is_unsigned variable.
| XED_DLL_EXPORT int xed_immdis_print_value_signed | ( | const xed_immdis_t * | p, |
| char * | buf, | ||
| int | buflen ) |
print the signed value, appropriate width, with a leading 0x
| XED_DLL_EXPORT int xed_immdis_print_value_unsigned | ( | const xed_immdis_t * | p, |
| char * | buf, | ||
| int | buflen ) |
print the unsigned value, appropriate width, with a leading 0x
| XED_DLL_EXPORT void xed_immdis_set_max_len | ( | xed_immdis_t * | p, |
| unsigned int | mx ) |
| XED_DLL_EXPORT void xed_immdis_set_present | ( | xed_immdis_t * | p | ) |
| XED_DLL_EXPORT void xed_immdis_set_signed | ( | xed_immdis_t * | p | ) |
Set the immediate to be signed; For decoder use only.
| XED_DLL_EXPORT void xed_immdis_set_unsigned | ( | xed_immdis_t * | p | ) |
Set the immediate to be unsigned; For decoder use only.
| XED_DLL_EXPORT void xed_immdis_zero | ( | xed_immdis_t * | p | ) |