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Added "division by zero" to the VM-aborting errors

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This commit is contained in:
Leonard2 2016-09-14 12:43:05 +02:00
parent 65af26f962
commit cb17e109f1
3 changed files with 45 additions and 0 deletions
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1
src/zscript/vm.h
View file

@ -162,6 +162,7 @@ enum EVMAbortException
X_WRITE_NIL,
X_TOO_MANY_TRIES,
X_ARRAY_OUT_OF_BOUNDS,
X_DIVISION_BY_ZERO,
};
class VMFunction : public DObject

40
src/zscript/vmexec.h
View file

@ -786,27 +786,51 @@ begin:
OP(DIV_RR):
ASSERTD(a); ASSERTD(B); ASSERTD(C);
if (reg.d[C] == 0)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.d[a] = reg.d[B] / reg.d[C];
NEXTOP;
OP(DIV_RK):
ASSERTD(a); ASSERTD(B); ASSERTKD(C);
if (konstd[C] == 0)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.d[a] = reg.d[B] / konstd[C];
NEXTOP;
OP(DIV_KR):
ASSERTD(a); ASSERTKD(B); ASSERTD(C);
if (reg.d[C] == 0)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.d[a] = konstd[B] / reg.d[C];
NEXTOP;
OP(MOD_RR):
ASSERTD(a); ASSERTD(B); ASSERTD(C);
if (reg.d[C] == 0)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.d[a] = reg.d[B] % reg.d[C];
NEXTOP;
OP(MOD_RK):
ASSERTD(a); ASSERTD(B); ASSERTKD(C);
if (konstd[C] == 0)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.d[a] = reg.d[B] % konstd[C];
NEXTOP;
OP(MOD_KR):
ASSERTD(a); ASSERTKD(B); ASSERTD(C);
if (reg.d[C] == 0)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.d[a] = konstd[B] % reg.d[C];
NEXTOP;
@ -981,14 +1005,26 @@ begin:
OP(DIVF_RR):
ASSERTF(a); ASSERTF(B); ASSERTF(C);
if (reg.f[C] == 0.)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.f[a] = reg.f[B] / reg.f[C];
NEXTOP;
OP(DIVF_RK):
ASSERTF(a); ASSERTF(B); ASSERTKF(C);
if (konstf[C] == 0.)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.f[a] = reg.f[B] / konstf[C];
NEXTOP;
OP(DIVF_KR):
ASSERTF(a); ASSERTKF(B); ASSERTF(C);
if (reg.f[C] == 0.)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.f[a] = konstf[B] / reg.f[C];
NEXTOP;
@ -996,6 +1032,10 @@ begin:
ASSERTF(a); ASSERTF(B); ASSERTF(C);
fb = reg.f[B]; fc = reg.f[C];
Do_MODF:
if (fc == 0.)
{
THROW(X_DIVISION_BY_ZERO);
}
reg.f[a] = luai_nummod(fb, fc);
NEXTOP;
OP(MODF_RK):

4
src/zscript/vmframe.cpp
View file

@ -436,6 +436,10 @@ int VMFrameStack::Call(VMFunction *func, VMValue *params, int numparams, VMRetur
case X_ARRAY_OUT_OF_BOUNDS:
Printf("array access out of bounds.");
break;
case X_DIVISION_BY_ZERO:
Printf("division by zero.");
break;
}
Printf("\n");