ref: bdc1b187c45dbaeaa7dadce4d7999d9d550ec78f
dir: /sys/src/libmach/0.c/
/*
* mips r4k definition
*
* currently no compiler - not related to 0c
*/
#include <u.h>
#include <libc.h>
#include <bio.h>
#include "mips2ureg.h"
#include <mach.h>
#define FPREGBYTES 4
#define REGOFF(x) (ulong)(&((struct Ureg *) 0)->x)
#define SP REGOFF(sp)
#define PC REGOFF(pc)
#define R1 REGOFF(hr1)
#define R31 REGOFF(hr31)
#define FP_REG(x) (R1+8+FPREGBYTES*(x))
#define REGSIZE sizeof(struct Ureg)
#define FPREGSIZE (FPREGBYTES*33)
Reglist mips2reglist[] = {
{"STATUS", REGOFF(status), RINT|RRDONLY, 'X'},
{"CAUSE", REGOFF(cause), RINT|RRDONLY, 'X'},
{"BADVADDR", REGOFF(badvaddr), RINT|RRDONLY, 'X'},
{"TLBVIRT", REGOFF(tlbvirt), RINT|RRDONLY, 'X'},
{"HI", REGOFF(hhi), RINT|RRDONLY, 'W'},
{"LO", REGOFF(hlo), RINT|RRDONLY, 'W'},
{"PC", PC, RINT, 'X'},
{"SP", SP, RINT, 'X'},
{"R31", R31, RINT, 'W'},
{"R30", REGOFF(hr30), RINT, 'W'},
{"R28", REGOFF(hr28), RINT, 'W'},
{"R27", REGOFF(hr27), RINT, 'W'},
{"R26", REGOFF(hr26), RINT, 'W'},
{"R25", REGOFF(hr25), RINT, 'W'},
{"R24", REGOFF(hr24), RINT, 'W'},
{"R23", REGOFF(hr23), RINT, 'W'},
{"R22", REGOFF(hr22), RINT, 'W'},
{"R21", REGOFF(hr21), RINT, 'W'},
{"R20", REGOFF(hr20), RINT, 'W'},
{"R19", REGOFF(hr19), RINT, 'W'},
{"R18", REGOFF(hr18), RINT, 'W'},
{"R17", REGOFF(hr17), RINT, 'W'},
{"R16", REGOFF(hr16), RINT, 'W'},
{"R15", REGOFF(hr15), RINT, 'W'},
{"R14", REGOFF(hr14), RINT, 'W'},
{"R13", REGOFF(hr13), RINT, 'W'},
{"R12", REGOFF(hr12), RINT, 'W'},
{"R11", REGOFF(hr11), RINT, 'W'},
{"R10", REGOFF(hr10), RINT, 'W'},
{"R9", REGOFF(hr9), RINT, 'W'},
{"R8", REGOFF(hr8), RINT, 'W'},
{"R7", REGOFF(hr7), RINT, 'W'},
{"R6", REGOFF(hr6), RINT, 'W'},
{"R5", REGOFF(hr5), RINT, 'W'},
{"R4", REGOFF(hr4), RINT, 'W'},
{"R3", REGOFF(hr3), RINT, 'W'},
{"R2", REGOFF(hr2), RINT, 'W'},
{"R1", REGOFF(hr1), RINT, 'W'},
{"F0", FP_REG(0), RFLT, 'F'},
{"F1", FP_REG(1), RFLT, 'f'},
{"F2", FP_REG(2), RFLT, 'F'},
{"F3", FP_REG(3), RFLT, 'f'},
{"F4", FP_REG(4), RFLT, 'F'},
{"F5", FP_REG(5), RFLT, 'f'},
{"F6", FP_REG(6), RFLT, 'F'},
{"F7", FP_REG(7), RFLT, 'f'},
{"F8", FP_REG(8), RFLT, 'F'},
{"F9", FP_REG(9), RFLT, 'f'},
{"F10", FP_REG(10), RFLT, 'F'},
{"F11", FP_REG(11), RFLT, 'f'},
{"F12", FP_REG(12), RFLT, 'F'},
{"F13", FP_REG(13), RFLT, 'f'},
{"F14", FP_REG(14), RFLT, 'F'},
{"F15", FP_REG(15), RFLT, 'f'},
{"F16", FP_REG(16), RFLT, 'F'},
{"F17", FP_REG(17), RFLT, 'f'},
{"F18", FP_REG(18), RFLT, 'F'},
{"F19", FP_REG(19), RFLT, 'f'},
{"F20", FP_REG(20), RFLT, 'F'},
{"F21", FP_REG(21), RFLT, 'f'},
{"F22", FP_REG(22), RFLT, 'F'},
{"F23", FP_REG(23), RFLT, 'f'},
{"F24", FP_REG(24), RFLT, 'F'},
{"F25", FP_REG(25), RFLT, 'f'},
{"F26", FP_REG(26), RFLT, 'F'},
{"F27", FP_REG(27), RFLT, 'f'},
{"F28", FP_REG(28), RFLT, 'F'},
{"F29", FP_REG(29), RFLT, 'f'},
{"F30", FP_REG(30), RFLT, 'F'},
{"F31", FP_REG(31), RFLT, 'f'},
{"FPCR", FP_REG(32), RFLT, 'X'},
{ 0 }
};
/* mips r4k big-endian */
Mach mmips2be =
{
"mips2",
MMIPS2, /* machine type */
mips2reglist, /* register set */
REGSIZE, /* number of bytes in reg set */
FPREGSIZE, /* number of bytes in fp reg set */
"PC", /* name of PC */
"SP", /* name of SP */
"R31", /* name of link register */
"setR30", /* static base register name */
0, /* SB value */
0x1000, /* page size */
0xC0000000, /* kernel base */
0x40000000, /* kernel text mask */
0x7FFFFFFFULL, /* user stack top */
4, /* quantization of pc */
4, /* szaddr */
8, /* szreg */
4, /* szfloat */
8, /* szdouble */
};
/* mips r4k little-endian */
Mach mmips2le =
{
"mips2",
NMIPS2, /* machine type */
mips2reglist, /* register set */
REGSIZE, /* number of bytes in reg set */
FPREGSIZE, /* number of bytes in fp reg set */
"PC", /* name of PC */
"SP", /* name of SP */
"R31", /* name of link register */
"setR30", /* static base register name */
0, /* SB value */
0x1000, /* page size */
0xC0000000ULL, /* kernel base */
0x40000000ULL, /* kernel text mask */
0x7FFFFFFFULL, /* user stack top */
4, /* quantization of pc */
4, /* szaddr */
8, /* szreg */
4, /* szfloat */
8, /* szdouble */
};