diff options
| author | Jason Wright <jason@cvs.openbsd.org> | 2001-06-26 21:50:26 +0000 |
|---|---|---|
| committer | Jason Wright <jason@cvs.openbsd.org> | 2001-06-26 21:50:26 +0000 |
| commit | 88503806779a6e4f43aa4e2795034a0680740304 (patch) | |
| tree | 5b534acb2143eef038acd9487f96e03095f4c0ee | |
| parent | 92b041ce3ce0c8d0973c5b9cab10eaa26fe5c3b9 (diff) | |
define opcodes and a macro for generating the instructions
also, be sure to mask off the reserved bits in the length space... 6500 seems to use them for something
| -rw-r--r-- | sys/dev/pci/lofnreg.h | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/sys/dev/pci/lofnreg.h b/sys/dev/pci/lofnreg.h index 975a83e04e1..253adc23fa6 100644 --- a/sys/dev/pci/lofnreg.h +++ b/sys/dev/pci/lofnreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: lofnreg.h,v 1.8 2001/06/26 18:12:20 jason Exp $ */ +/* $OpenBSD: lofnreg.h,v 1.9 2001/06/26 21:50:25 jason Exp $ */ /* * Copyright (c) 2001 Jason L. Wright (jason@thought.net) @@ -100,3 +100,36 @@ #define LOFN_LENADDR(win,r) \ ((win) | (((r) << 2) + LOFN_REL_LEN)) + +#define LOFN_LENMASK 0x000007ff /* mask for length space */ + +#define OP_DONE 0x80000000 /* final instruction */ +#define OP_CODE_MASK 0x7c000000 /* opcode mask */ +#define OP_CODE_MODEXP 0x00000000 /* modular exponentiation */ +#define OP_CODE_MODMUL 0x04000000 /* modular multiplication */ +#define OP_CODE_MODRED 0x08000000 /* modular reduction */ +#define OP_CODE_MODADD 0x0c000000 /* modular addition */ +#define OP_CODE_MODSUB 0x10000000 /* modular subtraction */ +#define OP_CODE_ADD 0x14000000 /* addition */ +#define OP_CODE_SUB 0x18000000 /* subtraction */ +#define OP_CODE_ADDC 0x1c000000 /* addition with carry */ +#define OP_CODE_SUBC 0x20000000 /* subtraction with carry */ +#define OP_CODE_MULT 0x24000000 /* 2048bit multiplication */ +#define OP_CODE_SR 0x28000000 /* shift right */ +#define OP_CODE_SL 0x2c000000 /* shift left */ +#define OP_CODE_INC 0x30000000 /* increment */ +#define OP_CODE_DEC 0x34000000 /* set length tag */ +#define OP_CODE_NOP 0x7c000000 /* nop */ + +#define OP_RD_SHIFT 21 +#define OP_RA_SHIFT 16 +#define OP_RB_SHIFT 11 +#define OP_RM_SHIFT 6 +#define OP_R_MASK 0x1f + +#define LOFN_INSTR(done,op,rd,ra,rb,rm) \ + ((done) | (op) | \ + (((rd) & OP_R_MASK) << OP_RD_SHIFT) | \ + (((ra) & OP_R_MASK) << OP_RA_SHIFT) | \ + (((rb) & OP_R_MASK) << OP_RB_SHIFT) | \ + (((rm) & OP_R_MASK) << OP_RM_SHIFT)) |