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* compile.c (init_pointers): Abort if wreg never gets initialized.

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(sim_resume): Fix the handling of exts.w and extu.w.
This commit is contained in:
Kazu Hirata
2003-02-05 23:10:27 +00:00
parent 5b729aa5d6
commit ec38ce9947
2 changed files with 10 additions and 2 deletions
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7
sim/h8300/compile.c
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@@ -753,6 +753,7 @@ init_pointers (void)
}
p++;
}
wreg[i] = wreg[i + 8] = 0;
while (q < u)
{
if (*q == 0x2233)
@@ -765,6 +766,8 @@ init_pointers (void)
}
q++;
}
if (wreg[i] == 0 || wreg[i + 8] == 0)
abort ();
cpu.regs[i] = 0;
lreg[i] = &cpu.regs[i];
}
@@ -1606,7 +1609,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
goto next;
}
case O (O_EXTS, SW):
rd = GET_B_REG (code->src.reg + 8) & 0xff; /* Yes, src, not dst. */
rd = GET_W_REG (code->src.reg) & 0xff; /* Yes, src, not dst. */
ea = rd & 0x80 ? -256 : 0;
res = rd + ea;
goto log16;
@@ -1616,7 +1619,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal)
res = rd + ea;
goto log32;
case O (O_EXTU, SW):
rd = GET_B_REG (code->src.reg + 8) & 0xff;
rd = GET_W_REG (code->src.reg) & 0xff;
ea = 0;
res = rd + ea;
goto log16;