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Diffstat (limited to 'sim/mn10300/op_utils.c')
| -rw-r--r-- | sim/mn10300/op_utils.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/sim/mn10300/op_utils.c b/sim/mn10300/op_utils.c deleted file mode 100644 index 36f387c..0000000 --- a/sim/mn10300/op_utils.c +++ /dev/null @@ -1,227 +0,0 @@ -#include "sim-main.h" -#include "targ-vals.h" - -#ifdef HAVE_UTIME_H -#include <utime.h> -#endif - -#ifdef HAVE_TIME_H -#include <time.h> -#endif - -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#ifdef HAVE_STRING_H -#include <string.h> -#else -#ifdef HAVE_STRINGS_H -#include <strings.h> -#endif -#endif -#include <sys/stat.h> -#include <sys/times.h> -#include <sys/time.h> - - - -#define REG0(X) ((X) & 0x3) -#define REG1(X) (((X) & 0xc) >> 2) -#define REG0_4(X) (((X) & 0x30) >> 4) -#define REG0_8(X) (((X) & 0x300) >> 8) -#define REG1_8(X) (((X) & 0xc00) >> 10) -#define REG0_16(X) (((X) & 0x30000) >> 16) -#define REG1_16(X) (((X) & 0xc0000) >> 18) - - -INLINE_SIM_MAIN (void) -genericAdd(unsigned32 source, unsigned32 destReg) -{ - int z, c, n, v; - unsigned32 dest, sum; - - dest = State.regs[destReg]; - sum = source + dest; - State.regs[destReg] = sum; - - z = (sum == 0); - n = (sum & 0x80000000); - c = (sum < source) || (sum < dest); - v = ((dest & 0x80000000) == (source & 0x80000000) - && (dest & 0x80000000) != (sum & 0x80000000)); - - PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); - PSW |= ((z ? PSW_Z : 0) | ( n ? PSW_N : 0) - | (c ? PSW_C : 0) | (v ? PSW_V : 0)); -} - - - - -INLINE_SIM_MAIN (void) -genericSub(unsigned32 source, unsigned32 destReg) -{ - int z, c, n, v; - unsigned32 dest, difference; - - dest = State.regs[destReg]; - difference = dest - source; - State.regs[destReg] = difference; - - z = (difference == 0); - n = (difference & 0x80000000); - c = (source > dest); - v = ((dest & 0x80000000) != (source & 0x80000000) - && (dest & 0x80000000) != (difference & 0x80000000)); - - PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); - PSW |= ((z ? PSW_Z : 0) | ( n ? PSW_N : 0) - | (c ? PSW_C : 0) | (v ? PSW_V : 0)); -} - -INLINE_SIM_MAIN (void) -genericCmp(unsigned32 leftOpnd, unsigned32 rightOpnd) -{ - int z, c, n, v; - unsigned32 value; - - value = rightOpnd - leftOpnd; - - z = (value == 0); - n = (value & 0x80000000); - c = (leftOpnd > rightOpnd); - v = ((rightOpnd & 0x80000000) != (leftOpnd & 0x80000000) - && (rightOpnd & 0x80000000) != (value & 0x80000000)); - - PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); - PSW |= ((z ? PSW_Z : 0) | ( n ? PSW_N : 0) - | (c ? PSW_C : 0) | (v ? PSW_V : 0)); -} - - -INLINE_SIM_MAIN (void) -genericOr(unsigned32 source, unsigned32 destReg) -{ - int n, z; - - State.regs[destReg] |= source; - z = (State.regs[destReg] == 0); - n = (State.regs[destReg] & 0x80000000) != 0; - PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); - PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0)); -} - - -INLINE_SIM_MAIN (void) -genericXor(unsigned32 source, unsigned32 destReg) -{ - int n, z; - - State.regs[destReg] ^= source; - z = (State.regs[destReg] == 0); - n = (State.regs[destReg] & 0x80000000) != 0; - PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); - PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0)); -} - - -INLINE_SIM_MAIN (void) -genericBtst(unsigned32 leftOpnd, unsigned32 rightOpnd) -{ - unsigned32 temp; - int z, n; - - temp = rightOpnd; - temp &= leftOpnd; - n = (temp & 0x80000000) != 0; - z = (temp == 0); - PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V); - PSW |= (z ? PSW_Z : 0) | (n ? PSW_N : 0); -} - -/* Read/write functions for system call interface. */ -INLINE_SIM_MAIN (int) -syscall_read_mem (host_callback *cb, struct cb_syscall *sc, - unsigned long taddr, char *buf, int bytes) -{ - SIM_DESC sd = (SIM_DESC) sc->p1; - sim_cpu *cpu = STATE_CPU(sd, 0); - - return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes); -} - -INLINE_SIM_MAIN (int) -syscall_write_mem (host_callback *cb, struct cb_syscall *sc, - unsigned long taddr, const char *buf, int bytes) -{ - SIM_DESC sd = (SIM_DESC) sc->p1; - sim_cpu *cpu = STATE_CPU(sd, 0); - - return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes); -} - - -/* syscall */ -INLINE_SIM_MAIN (void) -do_syscall (void) -{ - - /* We use this for simulated system calls; we may need to change - it to a reserved instruction if we conflict with uses at - Matsushita. */ - int save_errno = errno; - errno = 0; - -/* Registers passed to trap 0 */ - -/* Function number. */ -#define FUNC (State.regs[0]) - -/* Parameters. */ -#define PARM1 (State.regs[1]) -#define PARM2 (load_word (State.regs[REG_SP] + 12)) -#define PARM3 (load_word (State.regs[REG_SP] + 16)) - -/* Registers set by trap 0 */ - -#define RETVAL State.regs[0] /* return value */ -#define RETERR State.regs[1] /* return error code */ - -/* Turn a pointer in a register into a pointer into real memory. */ -#define MEMPTR(x) (State.mem + x) - - if ( FUNC == TARGET_SYS_exit ) - { - /* EXIT - caller can look in PARM1 to work out the reason */ - if (PARM1 == 0xdead) - State.exception = SIGABRT; - else - { - sim_engine_halt (simulator, STATE_CPU (simulator, 0), NULL, PC, - sim_exited, PARM1); - State.exception = SIGQUIT; - } - State.exited = 1; - } - else - { - CB_SYSCALL syscall; - - CB_SYSCALL_INIT (&syscall); - syscall.arg1 = PARM1; - syscall.arg2 = PARM2; - syscall.arg3 = PARM3; - syscall.func = FUNC; - syscall.p1 = (PTR) simulator; - syscall.read_mem = syscall_read_mem; - syscall.write_mem = syscall_write_mem; - cb_syscall (STATE_CALLBACK (simulator), &syscall); - RETERR = syscall.errcode; - RETVAL = syscall.result; - } - - - errno = save_errno; -} - |