diff options
Diffstat (limited to 'Source/JavaScriptCore/disassembler/udis86/udis86_decode.h')
| -rw-r--r-- | Source/JavaScriptCore/disassembler/udis86/udis86_decode.h | 253 |
1 files changed, 96 insertions, 157 deletions
diff --git a/Source/JavaScriptCore/disassembler/udis86/udis86_decode.h b/Source/JavaScriptCore/disassembler/udis86/udis86_decode.h index 940ed5ad6..411c8830e 100644 --- a/Source/JavaScriptCore/disassembler/udis86/udis86_decode.h +++ b/Source/JavaScriptCore/disassembler/udis86/udis86_decode.h @@ -27,74 +27,45 @@ #define UD_DECODE_H #include "udis86_types.h" +#include "udis86_udint.h" #include "udis86_itab.h" #define MAX_INSN_LENGTH 15 -/* register classes */ -#define T_NONE 0 -#define T_GPR 1 -#define T_MMX 2 -#define T_CRG 3 -#define T_DBG 4 -#define T_SEG 5 -#define T_XMM 6 - /* itab prefix bits */ #define P_none ( 0 ) -#define P_cast ( 1 << 0 ) -#define P_CAST(n) ( ( n >> 0 ) & 1 ) -#define P_c1 ( 1 << 0 ) -#define P_C1(n) ( ( n >> 0 ) & 1 ) -#define P_rexb ( 1 << 1 ) -#define P_REXB(n) ( ( n >> 1 ) & 1 ) -#define P_depM ( 1 << 2 ) -#define P_DEPM(n) ( ( n >> 2 ) & 1 ) -#define P_c3 ( 1 << 3 ) -#define P_C3(n) ( ( n >> 3 ) & 1 ) -#define P_inv64 ( 1 << 4 ) -#define P_INV64(n) ( ( n >> 4 ) & 1 ) + +#define P_inv64 ( 1 << 0 ) +#define P_INV64(n) ( ( n >> 0 ) & 1 ) +#define P_def64 ( 1 << 1 ) +#define P_DEF64(n) ( ( n >> 1 ) & 1 ) + +#define P_oso ( 1 << 2 ) +#define P_OSO(n) ( ( n >> 2 ) & 1 ) +#define P_aso ( 1 << 3 ) +#define P_ASO(n) ( ( n >> 3 ) & 1 ) + +#define P_rexb ( 1 << 4 ) +#define P_REXB(n) ( ( n >> 4 ) & 1 ) #define P_rexw ( 1 << 5 ) #define P_REXW(n) ( ( n >> 5 ) & 1 ) -#define P_c2 ( 1 << 6 ) -#define P_C2(n) ( ( n >> 6 ) & 1 ) -#define P_def64 ( 1 << 7 ) -#define P_DEF64(n) ( ( n >> 7 ) & 1 ) -#define P_rexr ( 1 << 8 ) -#define P_REXR(n) ( ( n >> 8 ) & 1 ) -#define P_oso ( 1 << 9 ) -#define P_OSO(n) ( ( n >> 9 ) & 1 ) -#define P_aso ( 1 << 10 ) -#define P_ASO(n) ( ( n >> 10 ) & 1 ) -#define P_rexx ( 1 << 11 ) -#define P_REXX(n) ( ( n >> 11 ) & 1 ) -#define P_ImpAddr ( 1 << 12 ) -#define P_IMPADDR(n) ( ( n >> 12 ) & 1 ) -#define P_seg ( 1 << 13 ) -#define P_SEG(n) ( ( n >> 13 ) & 1 ) -#define P_sext ( 1 << 14 ) -#define P_SEXT(n) ( ( n >> 14 ) & 1 ) - -/* rex prefix bits */ -#define REX_W(r) ( ( 0xF & ( r ) ) >> 3 ) -#define REX_R(r) ( ( 0x7 & ( r ) ) >> 2 ) -#define REX_X(r) ( ( 0x3 & ( r ) ) >> 1 ) -#define REX_B(r) ( ( 0x1 & ( r ) ) >> 0 ) -#define REX_PFX_MASK(n) ( ( P_REXW(n) << 3 ) | \ - ( P_REXR(n) << 2 ) | \ - ( P_REXX(n) << 1 ) | \ - ( P_REXB(n) << 0 ) ) - -/* scable-index-base bits */ -#define SIB_S(b) ( ( b ) >> 6 ) -#define SIB_I(b) ( ( ( b ) >> 3 ) & 7 ) -#define SIB_B(b) ( ( b ) & 7 ) - -/* modrm bits */ -#define MODRM_REG(b) ( ( ( b ) >> 3 ) & 7 ) -#define MODRM_NNN(b) ( ( ( b ) >> 3 ) & 7 ) -#define MODRM_MOD(b) ( ( ( b ) >> 6 ) & 3 ) -#define MODRM_RM(b) ( ( b ) & 7 ) +#define P_rexr ( 1 << 6 ) +#define P_REXR(n) ( ( n >> 6 ) & 1 ) +#define P_rexx ( 1 << 7 ) +#define P_REXX(n) ( ( n >> 7 ) & 1 ) + +#define P_seg ( 1 << 8 ) +#define P_SEG(n) ( ( n >> 8 ) & 1 ) + +#define P_vexl ( 1 << 9 ) +#define P_VEXL(n) ( ( n >> 9 ) & 1 ) +#define P_vexw ( 1 << 10 ) +#define P_VEXW(n) ( ( n >> 10 ) & 1 ) + +#define P_str ( 1 << 11 ) +#define P_STR(n) ( ( n >> 11 ) & 1 ) +#define P_strz ( 1 << 12 ) +#define P_STR_ZF(n) ( ( n >> 12 ) & 1 ) /* operand type constants -- order is important! */ @@ -102,25 +73,15 @@ enum ud_operand_code { OP_NONE, OP_A, OP_E, OP_M, OP_G, - OP_I, - - OP_AL, OP_CL, OP_DL, OP_BL, - OP_AH, OP_CH, OP_DH, OP_BH, - - OP_ALr8b, OP_CLr9b, OP_DLr10b, OP_BLr11b, - OP_AHr12b, OP_CHr13b, OP_DHr14b, OP_BHr15b, - - OP_AX, OP_CX, OP_DX, OP_BX, - OP_SI, OP_DI, OP_SP, OP_BP, - - OP_rAX, OP_rCX, OP_rDX, OP_rBX, - OP_rSP, OP_rBP, OP_rSI, OP_rDI, + OP_I, OP_F, - OP_rAXr8, OP_rCXr9, OP_rDXr10, OP_rBXr11, - OP_rSPr12, OP_rBPr13, OP_rSIr14, OP_rDIr15, + OP_R0, OP_R1, OP_R2, OP_R3, + OP_R4, OP_R5, OP_R6, OP_R7, - OP_eAX, OP_eCX, OP_eDX, OP_eBX, - OP_eSP, OP_eBP, OP_eSI, OP_eDI, + OP_AL, OP_CL, OP_DL, + OP_AX, OP_CX, OP_DX, + OP_eAX, OP_eCX, OP_eDX, + OP_rAX, OP_rCX, OP_rDX, OP_ES, OP_CS, OP_SS, OP_DS, OP_FS, OP_GS, @@ -129,45 +90,71 @@ enum ud_operand_code { OP_ST4, OP_ST5, OP_ST6, OP_ST7, OP_J, OP_S, OP_O, - OP_I1, OP_I3, + OP_I1, OP_I3, OP_sI, OP_V, OP_W, OP_Q, OP_P, + OP_U, OP_N, OP_MU, OP_H, + OP_L, - OP_R, OP_C, OP_D, OP_VR, OP_PR, + OP_R, OP_C, OP_D, OP_MR } UD_ATTR_PACKED; -/* operand size constants */ - -enum ud_operand_size { - SZ_NA = 0, - SZ_Z = 1, - SZ_V = 2, - SZ_P = 3, - SZ_WP = 4, - SZ_DP = 5, - SZ_MDQ = 6, - SZ_RDQ = 7, - - /* the following values are used as is, - * and thus hard-coded. changing them - * will break internals - */ - SZ_B = 8, - SZ_W = 16, - SZ_D = 32, - SZ_Q = 64, - SZ_T = 80, - SZ_O = 128, - - SZ_WV = 17, - SZ_BV = 18, - SZ_DY = 19 - -} UD_ATTR_PACKED; +/* + * Operand size constants + * + * Symbolic constants for various operand sizes. Some of these constants + * are given a value equal to the width of the data (SZ_B == 8), such + * that they maybe used interchangeably in the internals. Modifying them + * will most certainly break things! + */ +typedef uint16_t ud_operand_size_t; + +#define SZ_NA 0 +#define SZ_Z 1 +#define SZ_V 2 +#define SZ_Y 3 +#define SZ_X 4 +#define SZ_RDQ 7 +#define SZ_B 8 +#define SZ_W 16 +#define SZ_D 32 +#define SZ_Q 64 +#define SZ_T 80 +#define SZ_O 12 +#define SZ_DQ 128 /* double quad */ +#define SZ_QQ 256 /* quad quad */ + +/* + * Complex size types; that encode sizes for operands of type MR (memory or + * register); for internal use only. Id space above 256. + */ +#define SZ_BD ((SZ_B << 8) | SZ_D) +#define SZ_BV ((SZ_B << 8) | SZ_V) +#define SZ_WD ((SZ_W << 8) | SZ_D) +#define SZ_WV ((SZ_W << 8) | SZ_V) +#define SZ_WY ((SZ_W << 8) | SZ_Y) +#define SZ_DY ((SZ_D << 8) | SZ_Y) +#define SZ_WO ((SZ_W << 8) | SZ_O) +#define SZ_DO ((SZ_D << 8) | SZ_O) +#define SZ_QO ((SZ_Q << 8) | SZ_O) + + +/* resolve complex size type. + */ +static UD_INLINE ud_operand_size_t +Mx_mem_size(ud_operand_size_t size) +{ + return (size >> 8) & 0xff; +} +static UD_INLINE ud_operand_size_t +Mx_reg_size(ud_operand_size_t size) +{ + return size & 0xff; +} /* A single operand of an entry in the instruction table. * (internal use only) @@ -175,7 +162,7 @@ enum ud_operand_size { struct ud_itab_entry_operand { enum ud_operand_code type; - enum ud_operand_size size; + ud_operand_size_t size; }; @@ -188,6 +175,7 @@ struct ud_itab_entry struct ud_itab_entry_operand operand1; struct ud_itab_entry_operand operand2; struct ud_itab_entry_operand operand3; + struct ud_itab_entry_operand operand4; uint32_t prefix; }; @@ -197,55 +185,6 @@ struct ud_lookup_table_list_entry { const char *meta; }; - -static inline unsigned int sse_pfx_idx( const unsigned int pfx ) -{ - /* 00 = 0 - * f2 = 1 - * f3 = 2 - * 66 = 3 - */ - return ( ( pfx & 0xf ) + 1 ) / 2; -} - -static inline unsigned int mode_idx( const unsigned int mode ) -{ - /* 16 = 0 - * 32 = 1 - * 64 = 2 - */ - return ( mode / 32 ); -} - -static inline unsigned int modrm_mod_idx( const unsigned int mod ) -{ - /* !11 = 0 - * 11 = 1 - */ - return ( mod + 1 ) / 4; -} - -static inline unsigned int vendor_idx( const unsigned int vendor ) -{ - switch ( vendor ) { - case UD_VENDOR_AMD: return 0; - case UD_VENDOR_INTEL: return 1; - case UD_VENDOR_ANY: return 2; - default: return 2; - } -} - -static inline unsigned int is_group_ptr( uint16_t ptr ) -{ - return ( 0x8000 & ptr ); -} - -static inline unsigned int group_idx( uint16_t ptr ) -{ - return ( ~0x8000 & ptr ); -} - - extern struct ud_itab_entry ud_itab[]; extern struct ud_lookup_table_list_entry ud_lookup_table_list[]; |