Lint.
This commit is contained in:
Steve Chamberlain
parent
3681a95291
commit
fdc506e668
331
sim/sh/interp.c
331
sim/sh/interp.c
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@ -147,7 +147,7 @@ typedef union
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int profile;
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unsigned short *profile_hist;
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unsigned char *memory;
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}
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asregs;
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int asints[28];
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@ -181,43 +181,45 @@ now_persec ()
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static FILE *profile_file;
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static void swap(b,n)
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static void
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swap (b, n)
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unsigned char *b;
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int n;
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{
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b[0] = n>>24;
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b[1] = n>>16;
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b[2] = n>>8;
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b[3] = n>>0;
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}
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static void swap16(b,n)
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unsigned char *b;
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int n;
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{
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b[0] = n>>8;
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b[1] = n>>0;
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}
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static void
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swapout(n)
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int n;
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{
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if (profile_file)
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{
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char b[4];
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swap(b,n);
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fwrite(b, 4, 1, profile_file);
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}
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}
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b[0] = n >> 24;
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b[1] = n >> 16;
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b[2] = n >> 8;
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b[3] = n >> 0;
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}
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static void
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swap16 (b, n)
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unsigned char *b;
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int n;
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{
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b[0] = n >> 8;
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b[1] = n >> 0;
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}
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static void
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swapout16(n)
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swapout (n)
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int n;
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{
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if (profile_file)
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{
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char b[4];
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swap (b, n);
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fwrite (b, 4, 1, profile_file);
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}
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}
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static void
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swapout16 (n)
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int n;
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{
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char b[4];
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swap16(b,n);
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fwrite(b, 2, 1, profile_file);
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}
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swap16 (b, n);
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fwrite (b, 2, 1, profile_file);
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}
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/* Turn a pointer in a register into a pointer into real memory. */
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@ -226,7 +228,7 @@ static char *
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ptr (x)
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int x;
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{
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return (char *)(x + saved_state.asregs.memory);
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return (char *) (x + saved_state.asregs.memory);
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}
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/* Simulate a monitor trap. */
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@ -293,7 +295,7 @@ control_c (sig, code, scp, addr)
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}
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static int
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static int
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div1 (R, iRn2, iRn1, T)
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int *R;
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int iRn1;
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@ -310,43 +312,43 @@ div1 (R, iRn2, iRn1, T)
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switch (old_q)
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{
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case 0:
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case 0:
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switch (M)
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{
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case 0:
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tmp0 = R[iRn1];
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R[iRn1] -= R[iRn2];
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tmp1 = (R[iRn1] > tmp0);
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switch (Q)
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{
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case 0:
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Q = tmp1;
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break;
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case 1:
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Q = (unsigned char) (tmp1 == 0);
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break;
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}
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break;
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case 1:
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tmp0 = R[iRn1];
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R[iRn1] += R[iRn2];
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tmp1 = (R[iRn1] < tmp0);
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switch (Q)
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{
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case 0:
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Q = (unsigned char) (tmp1 == 0);
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break;
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case 1:
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Q = tmp1;
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break;
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}
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break;
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}
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{
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case 0:
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tmp0 = R[iRn1];
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R[iRn1] -= R[iRn2];
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tmp1 = (R[iRn1] > tmp0);
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switch (Q)
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{
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case 0:
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Q = tmp1;
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break;
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case 1:
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Q = (unsigned char) (tmp1 == 0);
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break;
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}
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break;
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case 1:
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tmp0 = R[iRn1];
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R[iRn1] += R[iRn2];
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tmp1 = (R[iRn1] < tmp0);
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switch (Q)
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{
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case 0:
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Q = (unsigned char) (tmp1 == 0);
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break;
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case 1:
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Q = tmp1;
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break;
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}
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break;
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}
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break;
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case 1:
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switch (M)
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{
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case 0:
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case 0:
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tmp0 = R[iRn1];
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R[iRn1] += R[iRn2];
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tmp1 = (R[iRn1] < tmp0);
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@ -357,10 +359,10 @@ div1 (R, iRn2, iRn1, T)
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break;
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case 1:
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Q = (unsigned char) (tmp1 == 0);
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break;
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break;
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}
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break;
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case 1:
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case 1:
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tmp0 = R[iRn1];
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R[iRn1] -= R[iRn2];
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tmp1 = (R[iRn1] > tmp0);
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@ -381,76 +383,52 @@ div1 (R, iRn2, iRn1, T)
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return T;
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}
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#if 0
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old_q = Q;
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Q = (R[n]&0x80000000) != 0;
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R[n] <<= 1;
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R[n] |= T;
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tmp0 = R[n];
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if (M==old_q)
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{
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R[n] -= R[m];
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tmp1 = (R[n] > tmp0) != Q;
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T = 1;
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}
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else
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{
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R[n] += R[m];
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tmp1 = (R[n] < tmp0) == Q;
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T = 0;
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}
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return T;
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}
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#endif
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static void dmul(sign, rml, rnl)
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static void
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dmul (sign, rm, rn)
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int sign;
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unsigned int rml;
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unsigned int rnl;
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unsigned int rm;
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unsigned int rn;
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{
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unsigned int rmh;
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unsigned int rnh;
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unsigned long RnL, RnH;
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unsigned long RmL, RmH;
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unsigned long temp0, temp1, temp2, temp3;
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unsigned long Res2, Res1, Res0;
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unsigned int t0,t1,t2,t3;
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unsigned int res0,res1,res2;
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/* Sign extend input if signed multiply */
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if (sign)
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if (!sign)
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{
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rmh = (rml & 0x80000000) ? ~0 : 0;
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rnh = (rnl & 0x80000000) ? ~0 : 0;
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RnL = rn & 0xffff;
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RnH = (rn >> 16) & 0xffff;
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RmL = rm & 0xffff;
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RmH = (rm >> 16) & 0xffff;
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temp0 = RmL * RnL;
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temp1 = RmH * RnL;
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temp2 = RmL * RnH;
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temp3 = RmH * RnH;
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Res2 = 0;
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Res1 = temp1 + temp2;
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if (Res1 < temp1)
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Res2 += 0x00010000;
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temp1 = (Res1 << 16) & 0xffff0000;
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Res0 = temp0 + temp1;
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if (Res0 < temp0)
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Res2 += 1;
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Res2 += ((Res1 >> 16) & 0xffff) + temp3;
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MACH = Res2;
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MACL = Res0;
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}
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else
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else
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{
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rmh = 0;
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rnh = 0;
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abort ();
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}
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t0 = rml *rnl;
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t1 = rmh *rnl;
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t2 = rml*rnh;
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t3 = rmh*rnh;
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res2 = 0;
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res1 = t1+t2;
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if (res1 < t1)
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res2 += 0x00010000;
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t1 = ((res1 << 16) & 0xffff0000);
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res0 = t0 + t1;
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if (res0 < t0) res2++;
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res2 = res2 + ((res1 >> 16) & 0xffff) + t3;
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MACH = res2;
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MACL = res0;
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}
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/* Set the memory size to the power of two provided. */
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void
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@ -460,7 +438,7 @@ sim_size (power)
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{
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saved_state.asregs.msize = 1 << power;
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sim_memory_size = power;
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sim_memory_size = power;
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if (saved_state.asregs.memory)
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@ -478,13 +456,13 @@ sim_size (power)
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saved_state.asregs.msize);
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saved_state.asregs.msize = 1;
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saved_state.asregs.memory = (unsigned char *)calloc(1,1);
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saved_state.asregs.memory = (unsigned char *) calloc (1, 1);
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}
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}
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static
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static
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void
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init_pointers ()
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{
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@ -495,56 +473,57 @@ init_pointers ()
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if (saved_state.asregs.profile && !profile_file)
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{
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profile_file = fopen("gmon.out","wb");
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profile_file = fopen ("gmon.out", "wb");
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/* Seek to where to put the call arc data */
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nsamples = (1<<sim_profile_size);
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nsamples = (1 << sim_profile_size);
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fseek (profile_file, nsamples * 2 +12, 0);
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if (!profile_file)
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fseek (profile_file, nsamples * 2 + 12, 0);
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if (!profile_file)
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{
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fprintf(stderr,"Can't open gmon.out\n");
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fprintf (stderr, "Can't open gmon.out\n");
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}
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else
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else
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{
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saved_state.asregs.profile_hist =
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(unsigned short *) calloc(64, (nsamples * sizeof(short) / 64));
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(unsigned short *) calloc (64, (nsamples * sizeof (short) / 64));
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}
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}
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}
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static void
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dump_profile()
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dump_profile ()
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{
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unsigned int minpc ;
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unsigned int minpc;
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unsigned int maxpc;
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unsigned short *p;
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int thisshift;
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unsigned short *first;
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int i;
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p = saved_state.asregs.profile_hist;
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minpc =0;
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maxpc = (1<<sim_profile_size) ;
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fseek(profile_file, 0L, 0);
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swapout(minpc<<PROFILE_SHIFT);
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swapout(maxpc<<PROFILE_SHIFT);
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swapout(nsamples * 2 + 12);
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for (i = 0; i < nsamples ; i++)
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swapout16(saved_state.asregs.profile_hist[i]);
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minpc = 0;
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maxpc = (1 << sim_profile_size);
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fseek (profile_file, 0L, 0);
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swapout (minpc << PROFILE_SHIFT);
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swapout (maxpc << PROFILE_SHIFT);
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swapout (nsamples * 2 + 12);
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for (i = 0; i < nsamples; i++)
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swapout16 (saved_state.asregs.profile_hist[i]);
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}
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static int gotcall(from, to)
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static int
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gotcall (from, to)
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int from;
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int to;
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{
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swapout(from);
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swapout(to);
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swapout(1);
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swapout (from);
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swapout (to);
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swapout (1);
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}
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#define MMASKB ((saved_state.asregs.msize -1) & ~0)
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@ -552,13 +531,13 @@ void
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sim_resume (step)
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int step;
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{
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register unsigned int pc;
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register unsigned int pc;
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register int cycles = 0;
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register int stalls = 0;
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register int insts = 0;
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register int prevlock;
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register int thislock ;
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register unsigned int doprofile ;
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register int thislock;
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register unsigned int doprofile;
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int tick_start = get_now ();
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void (*prev) ();
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@ -578,8 +557,8 @@ sim_resume (step)
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prev = signal (SIGINT, control_c);
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init_pointers();
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init_pointers ();
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if (step)
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{
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saved_state.asregs.exception = SIGTRAP;
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@ -598,13 +577,13 @@ sim_resume (step)
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/* If profiling not enabled, disable it by asking for
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profiles infrequently. */
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if (doprofile==0)
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if (doprofile == 0)
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doprofile = ~0;
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do
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{
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register unsigned int iword = RUWAT (pc);
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register unsigned int ult;
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register unsigned int iword = RUWAT (pc);
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register unsigned int ult;
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insts++;
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top:
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@ -621,16 +600,16 @@ sim_resume (step)
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{
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saved_state.asregs.cycles += doprofile;
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cycles -= doprofile;
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if (saved_state.asregs.profile_hist)
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if (saved_state.asregs.profile_hist)
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{
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int n = pc >> PROFILE_SHIFT;
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if (n < nsamples)
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if (n < nsamples)
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{
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int i = saved_state.asregs.profile_hist[n];
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if (i < 65000)
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saved_state.asregs.profile_hist[n] = i+1;
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saved_state.asregs.profile_hist[n] = i + 1;
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}
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}
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}
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}
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@ -655,9 +634,9 @@ sim_resume (step)
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if (profile_file)
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{
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dump_profile();
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dump_profile ();
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}
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signal (SIGINT, prev);
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}
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@ -711,7 +690,7 @@ sim_fetch_register (rn, buf)
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{
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int value = ((int *) (&saved_state))[rn];
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swap(buf, value);
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swap (buf, value);
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}
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@ -742,15 +721,15 @@ sim_info ()
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double virttime = saved_state.asregs.cycles / 36.0e6;
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printf ("\n\n# instructions executed %10d\n", saved_state.asregs.insts);
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printf ("# cycles %10d\n", saved_state.asregs.cycles);
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printf ("# cycles %10d\n", saved_state.asregs.cycles);
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printf ("# pipeline stalls %10d\n", saved_state.asregs.stalls);
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printf ("# real time taken %10.4f\n", timetaken);
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printf ("# virtual time taked %10.4f\n", virttime);
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printf ("# profiling size %10d\n", sim_profile_size);
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printf( "# profiling frequency %10d\n", saved_state.asregs.profile);
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printf( "# profile maxpc %10x\n", (1<<sim_profile_size) << PROFILE_SHIFT);
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if (timetaken != 0)
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printf ("# profiling frequency %10d\n", saved_state.asregs.profile);
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printf ("# profile maxpc %10x\n", (1 << sim_profile_size) << PROFILE_SHIFT);
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if (timetaken != 0)
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{
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printf ("# cycles/second %10d\n", (int) (saved_state.asregs.cycles / timetaken));
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printf ("# simulation ratio %10.4f\n", virttime / timetaken);
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@ -759,13 +738,13 @@ sim_info ()
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void
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sim_set_profile(n)
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sim_set_profile (n)
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{
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saved_state.asregs.profile = n;
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}
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void
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sim_set_profile_size(n)
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sim_set_profile_size (n)
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{
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sim_profile_size = n;
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}
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