| Line 72... |
Line 72... |
if (((nbits-1-i)&3)==0)
|
if (((nbits-1-i)&3)==0)
|
*str++ = ' ';
|
*str++ = ' ';
|
} *str = '\0';
|
} *str = '\0';
|
}
|
}
|
|
|
void tick(void) {
|
void dbgdump(void) {
|
bool debug = false;
|
|
|
|
if (debug) {
|
|
char outstr[2048], *s;
|
char outstr[2048], *s;
|
sprintf(outstr, "Tick %4ld %s%s%s%s%s%s %2d",
|
sprintf(outstr, "Tick %4ld %s%s%s%s%s%s%s %2d(%s= 0)",
|
m_tickcount,
|
m_tickcount,
|
(m_core->o_busy)?"B":" ",
|
(m_core->o_busy)?"B":" ",
|
|
(m_core->v__DOT__r_busy)?"R":" ",
|
(m_core->o_valid)?"V":" ",
|
(m_core->o_valid)?"V":" ",
|
(m_core->i_wr)?"W":" ",
|
(m_core->i_wr)?"W":" ",
|
(m_core->v__DOT__pre_sign)?"+":" ",
|
(m_core->v__DOT__pre_sign)?"+":" ",
|
(m_core->v__DOT__r_sign)?"-":" ",
|
(m_core->v__DOT__r_sign)?"-":" ",
|
(m_core->v__DOT__r_z)?"Z":" ",
|
(m_core->v__DOT__r_z)?"Z":" ",
|
m_core->v__DOT__r_bit);
|
m_core->v__DOT__r_bit,
|
|
(m_core->v__DOT__last_bit)?"=":"!");
|
s = &outstr[strlen(outstr)];
|
s = &outstr[strlen(outstr)];
|
sprintf(s, "%s\n%10s %40s",s, "Div","");
|
sprintf(s, "%s\n%10s %40s",s, "Div","");
|
s = &s[strlen(s)];
|
s = &s[strlen(s)];
|
bprint( s, 32, m_core->v__DOT__r_dividend);
|
bprint( s, 32, m_core->v__DOT__r_dividend);
|
s=&s[strlen(s)];
|
s=&s[strlen(s)];
|
| Line 102... |
Line 101... |
s=&s[strlen(s)];
|
s=&s[strlen(s)];
|
bprint( s, 33, m_core->v__DOT__diff); s = &s[strlen(s)];
|
bprint( s, 33, m_core->v__DOT__diff); s = &s[strlen(s)];
|
strcat(s, "\n");
|
strcat(s, "\n");
|
puts(outstr);
|
puts(outstr);
|
}
|
}
|
|
|
|
void tick(void) {
|
|
bool debug = false;
|
|
|
|
if (debug)
|
|
dbgdump();
|
TESTB<Vdiv>::tick();
|
TESTB<Vdiv>::tick();
|
}
|
}
|
|
|
void divs(int n, int d) {
|
void divs(int n, int d) {
|
bool dbg = false;
|
bool dbg = false;
|
| Line 124... |
Line 129... |
m_core->i_wr = 0;
|
m_core->i_wr = 0;
|
m_core->i_signed = 0;
|
m_core->i_signed = 0;
|
m_core->i_numerator = 0;
|
m_core->i_numerator = 0;
|
m_core->i_denominator = 0;
|
m_core->i_denominator = 0;
|
|
|
|
// Make certain busy is immediately true upon the first clock
|
|
// after we issue the divide.
|
assert(m_core->o_busy);
|
assert(m_core->o_busy);
|
assert(m_core->o_valid == 0);
|
assert(m_core->o_valid == 0);
|
|
|
// while((!m_core->o_valid)&&(!m_core->o_err))
|
// while((!m_core->o_valid)&&(!m_core->o_err))
|
while(!m_core->o_valid)
|
while(!m_core->o_valid) {
|
|
if (!m_core->o_busy) {
|
|
// Make certain busy is asserted whenever
|
|
// valid is false and we're ... well, busy
|
|
dbgdump();
|
|
assert(m_core->o_busy);
|
|
}
|
tick();
|
tick();
|
|
} if (dbg) dbgdump();
|
|
assert(!m_core->o_busy);
|
|
|
if (dbg) {
|
if (dbg) {
|
printf("%s%s: %d / %d =? %d\n",
|
printf("%s%s: %d / %d =? %d\n",
|
(m_core->o_valid)?"V":" ",
|
(m_core->o_valid)?"V":" ",
|
(m_core->o_err)?"E":" ",
|
(m_core->o_err)?"E":" ",
|
| Line 167... |
Line 182... |
m_core->i_denominator = 0;
|
m_core->i_denominator = 0;
|
|
|
assert(m_core->o_busy);
|
assert(m_core->o_busy);
|
assert(m_core->o_valid == 0);
|
assert(m_core->o_valid == 0);
|
|
|
while(!m_core->o_valid)
|
while(!m_core->o_valid) {
|
|
assert(m_core->o_busy);
|
tick();
|
tick();
|
|
} assert(!m_core->o_busy);
|
|
|
if (dbg) {
|
if (dbg) {
|
printf("%s%s: %u / %u =? %d (Expecting %u)\n",
|
printf("%s%s: %u / %u =? %d (Expecting %u)\n",
|
(m_core->o_valid)?"V":" ",
|
(m_core->o_valid)?"V":" ",
|
(m_core->o_err)?"E":" ",
|
(m_core->o_err)?"E":" ",
|
