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Plan 9 NeXT
/*
* mips definition
*/
#include <u.h>
#include <bio.h>
#include "/mips/include/ureg.h"
#include <mach.h>
#define USER_REG(x) (0x1000-4-0xA0+(ulong)(x))
#define FP_REG(x) (0x0000+4+(x))
#define SCALLOFF (0x0000+4+132)
#define REGOFF(x) (USER_REG(&((struct Ureg *) 0)->x))
#define SP REGOFF(sp)
#define PC REGOFF(pc)
#define R1 REGOFF(r1)
#define R31 REGOFF(r31)
#define MINREG 1
#define MAXREG 64
Reglist mipsreglist[] = {
{"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(hi), RINT|RRDONLY, 'X'},
{"LO", REGOFF(lo), RINT|RRDONLY, 'X'},
#define FW 5 /* first register we may write */
{"PC", PC, RINT, 'X'},
{"SP", SP, RINT, 'X'},
{"R31", R31, RINT, 'X'},
{"R30", REGOFF(r30), RINT, 'X'},
{"R28", REGOFF(r28), RINT, 'X'},
{"R27", REGOFF(r27), RINT, 'X'},
{"R26", REGOFF(r26), RINT, 'X'},
{"R25", REGOFF(r25), RINT, 'X'},
{"R24", REGOFF(r24), RINT, 'X'},
{"R23", REGOFF(r23), RINT, 'X'},
{"R22", REGOFF(r22), RINT, 'X'},
{"R21", REGOFF(r21), RINT, 'X'},
{"R20", REGOFF(r20), RINT, 'X'},
{"R19", REGOFF(r19), RINT, 'X'},
{"R18", REGOFF(r18), RINT, 'X'},
{"R17", REGOFF(r17), RINT, 'X'},
{"R16", REGOFF(r16), RINT, 'X'},
{"R15", REGOFF(r15), RINT, 'X'},
{"R14", REGOFF(r14), RINT, 'X'},
{"R13", REGOFF(r13), RINT, 'X'},
{"R12", REGOFF(r12), RINT, 'X'},
{"R11", REGOFF(r11), RINT, 'X'},
{"R10", REGOFF(r10), RINT, 'X'},
{"R9", REGOFF(r9), RINT, 'X'},
{"R8", REGOFF(r8), RINT, 'X'},
{"R7", REGOFF(r7), RINT, 'X'},
{"R6", REGOFF(r6), RINT, 'X'},
{"R5", REGOFF(r5), RINT, 'X'},
{"R4", REGOFF(r4), RINT, 'X'},
{"R3", REGOFF(r3), RINT, 'X'},
{"R2", REGOFF(r2), RINT, 'X'},
{"R1", REGOFF(r1), RINT, 'X'},
{"F0", FP_REG(0x00), RFLT, 'F'},
{"F1", FP_REG(0x04), RFLT, 'f'},
{"F2", FP_REG(0x08), RFLT, 'F'},
{"F3", FP_REG(0x0C), RFLT, 'f'},
{"F4", FP_REG(0x10), RFLT, 'F'},
{"F5", FP_REG(0x14), RFLT, 'f'},
{"F6", FP_REG(0x18), RFLT, 'F'},
{"F7", FP_REG(0x1C), RFLT, 'f'},
{"F8", FP_REG(0x20), RFLT, 'F'},
{"F9", FP_REG(0x24), RFLT, 'f'},
{"F10", FP_REG(0x28), RFLT, 'F'},
{"F11", FP_REG(0x2C), RFLT, 'f'},
{"F12", FP_REG(0x30), RFLT, 'F'},
{"F13", FP_REG(0x34), RFLT, 'f'},
{"F14", FP_REG(0x38), RFLT, 'F'},
{"F15", FP_REG(0x3C), RFLT, 'f'},
{"F16", FP_REG(0x40), RFLT, 'F'},
{"F17", FP_REG(0x44), RFLT, 'f'},
{"F18", FP_REG(0x48), RFLT, 'F'},
{"F19", FP_REG(0x4C), RFLT, 'f'},
{"F20", FP_REG(0x50), RFLT, 'F'},
{"F21", FP_REG(0x54), RFLT, 'f'},
{"F22", FP_REG(0x58), RFLT, 'F'},
{"F23", FP_REG(0x5C), RFLT, 'f'},
{"F24", FP_REG(0x60), RFLT, 'F'},
{"F25", FP_REG(0x64), RFLT, 'f'},
{"F26", FP_REG(0x68), RFLT, 'F'},
{"F27", FP_REG(0x6C), RFLT, 'f'},
{"F28", FP_REG(0x70), RFLT, 'F'},
{"F29", FP_REG(0x74), RFLT, 'f'},
{"F30", FP_REG(0x78), RFLT, 'F'},
{"F31", FP_REG(0x7C), RFLT, 'f'},
{"FPCR", FP_REG(0x80), RFLT, 'X'},
{ 0 }
};
/* the machine description */
Mach mmips =
{
"mips",
MMIPS, /* machine type */
mipsreglist, /* register set */
MINREG, /* minimum register */
MAXREG, /* maximum register */
"PC",
"SP",
"R31",
R1, /* return reg */
0x1000, /* page size */
0xC0000000, /* kernel base */
0x40000000, /* kernel text mask */
0, /* offset of ksp in /proc/proc */
0, /* correction to ksp value */
4, /* offset of kpc in /proc/proc */
0, /* correction to kpc value */
SCALLOFF, /* offset to sys call # in ublk */
4, /* quantization of pc */
"setR30", /* static base register name */
0, /* value */
4, /* szaddr */
4, /* szreg */
4, /* szfloat */
8, /* szdouble */
};
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