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| author | H. Peter Anvin <hpa@zytor.com> | 2007-09-12 20:32:39 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2007-09-12 21:04:39 -0700 |
| commit | 0da6b580ebb5ed60164b95a720fcf26591007b0f (patch) | |
| tree | b39606b1ca116922706cf1af0e076ba4345a96b9 /nasm.h | |
| parent | 16b0a33ceae7b57cf4ebc9ab62cd4e1dc00dbf8c (diff) | |
| download | nasm-0da6b580ebb5ed60164b95a720fcf26591007b0f.tar.gz | |
Support r/m operands for non-integer types
Support r/m operands for non-integer operands types, i.e. mmx or xmm
operands. This allows mmx and xmm operands to be written more
compactly, speeding up the assembler.
Diffstat (limited to 'nasm.h')
| -rw-r--r-- | nasm.h | 20 |
1 files changed, 13 insertions, 7 deletions
@@ -432,12 +432,12 @@ enum { * * Bits 20-26: register classes * 20: REG_CDT (CRx, DRx, TRx) - * 21: REG_GPR (integer register) + * 21: RM_GPR (REG_GPR) (integer register) * 22: REG_SREG * 23: IP_REG (RIP or EIP) [unused] * 24: FPUREG - * 25: MMXREG - * 26: XMMREG + * 25: RM_MMX (MMXREG) + * 26: RM_XMM (XMMREG) * * Bits 27-31 are currently unallocated. */ @@ -470,6 +470,7 @@ enum { /* Register classes */ #define REG_EA 0x00009000L /* 'normal' reg, qualifies as EA */ +#define RM_GPR 0x00208000L /* integer operand */ #define REG_GPR 0x00209000L /* integer register */ #define REG8 0x00209001L /* 8-bit GPR */ #define REG16 0x00209002L /* 16-bit GPR */ @@ -480,8 +481,10 @@ enum { #define EIPREG 0x00801004L /* EIP */ #define FPUREG 0x01001000L /* floating point stack registers */ #define FPU0 0x01011000L /* FPU stack register zero */ -#define MMXREG 0x02009000L /* MMX registers */ -#define XMMREG 0x04009000L /* XMM Katmai reg */ +#define RM_MMX 0x02008000L /* MMX operand */ +#define MMXREG 0x02009000L /* MMX register */ +#define RM_XMM 0x04008000L /* XMM (SSE) operand */ +#define XMMREG 0x04009000L /* XMM (SSE) register */ #define REG_CDT 0x00101004L /* CRn, DRn and TRn */ #define REG_CREG 0x00111004L /* CRn */ #define REG_DREG 0x00121004L /* DRn */ @@ -514,8 +517,11 @@ enum { #define REG_HIGH 0x00289001L /* high regs: AH, CH, DH, BH */ /* special types of EAs */ -#define MEM_OFFS 0x00214000L /* simple [address] offset - absolute! */ -#define IP_REL 0x00224000L /* IP-relative offset */ +#define MEM_OFFS 0x0001c000L /* simple [address] offset - absolute! */ +#define IP_REL 0x0002c000L /* IP-relative offset */ + +/* memory which matches any type of r/m operand */ +#define MEMORY_ANY (MEMORY|RM_GPR|RM_MMX|RM_XMM) /* special type of immediate operand */ #define UNITY 0x00012000L /* for shift/rotate instructions */ |