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- /*
- * 68020 definition
- */
- #include <u.h>
- #include "/68020/include/ureg.h"
- #include <bio.h>
- #include <mach.h>
- #define MAXREG 0
- #define MINREG 0
- #define REGOFF(x) (ulong)(&((struct Ureg *) 0)->x)
- #define VO REGOFF(vo) /* vo, 2 bytes */
- #define SR REGOFF(sr) /* sr, 2 bytes */
- #define R0 REGOFF(r0)
- #define PC REGOFF(pc)
- #define DBMAGIC REGOFF(magic)
- #define SP REGOFF(usp)
- #define REGSIZE (R0+4)
- #define FCTL(x) (REGSIZE+(x)*4)
- #define FREG(x) (FCTL(3)+(x)*12)
- #define FPREGSIZE (11*12)
- /*
- * 68020 register set
- */
- Reglist m68020reglist[] = {
- {"VO", VO, RINT, 'x'},
- {"SR", SR, RINT, 'x'},
- {"MAGIC", DBMAGIC, RINT, 'X'},
- {"PC", PC, RINT, 'X'},
- {"A7", SP, RINT, 'X'},
- {"KSP", REGOFF(sp), RINT, 'X'},
- {"A6", REGOFF(a6), RINT, 'X'},
- {"A5", REGOFF(a5), RINT, 'X'},
- {"A4", REGOFF(a4), RINT, 'X'},
- {"A3", REGOFF(a3), RINT, 'X'},
- {"A2", REGOFF(a2), RINT, 'X'},
- {"A1", REGOFF(a1), RINT, 'X'},
- {"A0", REGOFF(a0), 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'},
- {"R0", REGOFF(r0), RINT, 'X'},
- {"FPCR", FCTL(0), RFLT, 'X'},
- {"FPSR", FCTL(1), RFLT, 'X'},
- {"FPIAR", FCTL(2), RFLT, 'X'},
- {"F0", FREG(0), RFLT, '8'},
- {"F1", FREG(1), RFLT, '8'},
- {"F2", FREG(2), RFLT, '8'},
- {"F3", FREG(3), RFLT, '8'},
- {"F4", FREG(4), RFLT, '8'},
- {"F5", FREG(5), RFLT, '8'},
- {"F6", FREG(6), RFLT, '8'},
- {"F7", FREG(7), RFLT, '8'},
- {0}
- };
- Mach m68020 =
- {
- "68020",
- M68020, /* machine type */
- m68020reglist, /* register list */
- REGSIZE, /* number of bytes in reg set */
- FPREGSIZE, /* number of bytes in fp reg set */
- "PC",
- "A7",
- 0, /* link register */
- "a6base", /* static base register name */
- 0, /* value */
- 0x2000, /* page size */
- 0x80000000ULL, /* kernel base */
- 0x80000000ULL, /* kernel text mask */
- 0x7FFFFFFFULL, /* user stack top */
- 2, /* quantization of pc */
- 4, /* szaddr */
- 4, /* szreg */
- 4, /* szfloat */
- 8, /* szdouble */
- };
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