#
# This file is part of the program psim.
#
-# Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+# Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
#
# --
#
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
-# --
-#
-#
-# Fields:
-#
-# 1 Instruction format as a `start-bit,content' pairs.
-# the content is one of a digit, field name or `/' (aka.0)
-#
-# 2 Format specifier
-#
-# 3 Flags: 64 - 64bit only
-# f - floating point enabled required
-#
-# 4 short name
-#
-# 5 Description
-#
-#
-# For flags marked 'model', the fields are interpreted as follows:
-#
-# 1 Not used
-#
-# 2 Not used
-#
-# 3 "macro"
-#
-# 4 String name for model
-#
-# 5 Specific CPU model, must be an identifier
-#
-# 6 Comma separated list of functional units
-
\f
# PowerPC models
::model:604:ppc604: PPC_UNIT_BAD, PPC_UNIT_BAD, 1, 1, 0
::model-macro:::
#define PPC_INSN_INT(OUT_MASK, IN_MASK, RC) \
do { \
- if (WITH_MODEL_ISSUE) { \
+ if (CURRENT_MODEL_ISSUE > 0) { \
if (RC) \
- ppc_insn_int(my_index, cpu_model(processor), OUT_MASK, IN_MASK); \
+ ppc_insn_int_cr(MY_INDEX, cpu_model(processor), OUT_MASK, IN_MASK, 1 << 0); \
else \
- ppc_insn_int_cr(my_index, cpu_model(processor), OUT_MASK, IN_MASK, 1 << 0); \
+ ppc_insn_int(MY_INDEX, cpu_model(processor), OUT_MASK, IN_MASK); \
} \
} while (0)
#define PPC_INSN_INT_CR(OUT_MASK, IN_MASK, CR_MASK) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_int_cr(my_index, cpu_model(processor), OUT_MASK, IN_MASK, CR_MASK); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_int_cr(MY_INDEX, cpu_model(processor), OUT_MASK, IN_MASK, CR_MASK); \
} while (0)
#define PPC_INSN_CR(OUT_MASK, IN_MASK) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_cr(my_index, cpu_model(processor), OUT_MASK, IN_MASK); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_cr(MY_INDEX, cpu_model(processor), OUT_MASK, IN_MASK); \
} while (0)
#define PPC_INSN_FLOAT(OUT_MASK, IN_MASK, RC) \
do { \
- if (WITH_MODEL_ISSUE) { \
+ if (CURRENT_MODEL_ISSUE > 0) { \
if (RC) \
- ppc_insn_float(my_index, cpu_model(processor), OUT_MASK, IN_MASK); \
+ ppc_insn_float(MY_INDEX, cpu_model(processor), OUT_MASK, IN_MASK); \
else \
- ppc_insn_float_cr(my_index, cpu_model(processor), OUT_MASK, IN_MASK, 1 << 0); \
+ ppc_insn_float_cr(MY_INDEX, cpu_model(processor), OUT_MASK, IN_MASK, 1 << 0); \
} \
} while (0)
#define PPC_INSN_FLOAT_CR(OUT_MASK, IN_MASK, CR_MASK) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_float_cr(my_index, cpu_model(processor), OUT_MASK, IN_MASK, CR_MASK); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_float_cr(MY_INDEX, cpu_model(processor), OUT_MASK, IN_MASK, CR_MASK); \
} while (0)
#define PPC_INSN_INT_FLOAT(OUT_INT_MASK, OUT_FP_MASK, IN_INT_MASK, IN_FP_MASK) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_int_float(my_index, cpu_model(processor), OUT_INT_MASK, OUT_FP_MASK, IN_INT_MASK, IN_FP_MASK); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_int_float(MY_INDEX, cpu_model(processor), OUT_INT_MASK, OUT_FP_MASK, IN_INT_MASK, IN_FP_MASK); \
} while (0)
#define PPC_INSN_FROM_SPR(INT_MASK, SPR) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_from_spr(my_index, cpu_model(processor), INT_MASK, SPR); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_from_spr(MY_INDEX, cpu_model(processor), INT_MASK, SPR); \
} while (0)
#define PPC_INSN_TO_SPR(INT_MASK, SPR) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_to_spr(my_index, cpu_model(processor), INT_MASK, SPR); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_to_spr(MY_INDEX, cpu_model(processor), INT_MASK, SPR); \
} while (0)
#define PPC_INSN_MFCR(INT_MASK) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_mfcr(my_index, cpu_model(processor), INT_MASK); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_mfcr(MY_INDEX, cpu_model(processor), INT_MASK); \
} while (0)
#define PPC_INSN_MTCR(INT_MASK, FXM) \
do { \
- if (WITH_MODEL_ISSUE) \
- ppc_insn_mtcr(my_index, cpu_model(processor), INT_MASK, FXM); \
+ if (CURRENT_MODEL_ISSUE > 0) \
+ ppc_insn_mtcr(MY_INDEX, cpu_model(processor), INT_MASK, FXM); \
} while (0)
::model-data:::
#define PPC_NO_SPR (-1) /* flag for no SPR register */
+ /* Return if 1 bit set */
+ #define PPC_ONE_BIT_SET_P(x) (((x) & ((x)-1)) == 0)
+
/* Structure for each functional unit that is busy */
typedef struct _model_busy model_busy;
struct _model_busy {
unsigned32 fp_busy; /* floating point registers that are busy */
unsigned32 cr_fpscr_busy; /* CR/FPSCR registers that are busy */
signed16 spr_busy; /* SPR register that is busy or PPC_NO_SPR */
- signed8 issue; /* # of cycles until unit can accept another insn */
- signed8 done; /* # of cycles until insn is done */
+ signed16 issue; /* # of cycles until unit can accept another insn */
+ signed16 done; /* # of cycles until insn is done */
+ signed16 nr_writebacks; /* # of registers this unit writes back */
};
-
+
/* Structure to hold the current state information for the simulated CPU model */
struct _model_data {
cpu *processor; /* point back to processor */
const char *name; /* model name */
const model_time *timing; /* timing information */
- model_busy *busy_list; /* list of busy function units */
+ model_busy busy_head; /* dummy entry to head list of busy function units */
+ model_busy *busy_tail; /* tail of list of busy function units */
model_busy *free_list; /* list of model_busy structs not in use */
count_type nr_cycles; /* # cycles */
count_type nr_branches; /* # branches */
count_type nr_stalls_data; /* # of stalls for data */
count_type nr_stalls_unit; /* # of stalls waiting for a function unit */
count_type nr_stalls_serialize; /* # of stalls waiting for things to quiet down */
+ count_type nr_stalls_writeback; /* # of stalls waiting for a writeback slot */
count_type nr_units[nr_ppc_function_units]; /* function unit counts */
+ int max_nr_writebacks; /* max # of writeback slots available */
unsigned32 int_busy; /* int registers that are busy */
unsigned32 fp_busy; /* floating point registers that are busy */
unsigned32 cr_fpscr_busy; /* CR/FPSCR registers that are busy */
unsigned8 busy[nr_ppc_function_units]; /* whether a function is busy or not */
};
- STATIC_MODEL const char *const ppc_function_unit_name[ (int)nr_ppc_function_units ] = {
+ static const char *const ppc_function_unit_name[ (int)nr_ppc_function_units ] = {
"unknown functional unit instruction",
"integer functional unit instruction",
"system register functional unit instruction",
"branch functional unit instruction",
};
- STATIC_MODEL const char *const ppc_branch_conditional_name[32] = {
+ static const char *const ppc_branch_conditional_name[32] = {
"branch if --CTR != 0 and condition is FALSE", /* 0000y */
"branch if --CTR != 0 and condition is FALSE, reverse branch likely",
"branch if --CTR == 0 and condition is FALSE", /* 0001y */
"branch always (ignored bits 1,4,5 set to 1)",
};
- STATIC_MODEL const char *const ppc_nr_mtcrf_crs[9] = {
+ static const char *const ppc_nr_mtcrf_crs[9] = {
"mtcrf moving 0 CRs",
"mtcrf moving 1 CR",
"mtcrf moving 2 CRs",
# Trace releasing resources
void::model-static::model_trace_release:model_data *model_ptr, model_busy *busy
int i;
- TRACE(trace_model,("done, %s\n", ppc_function_unit_name[busy->unit]));
+ TRACE(trace_model,("done, %s, %d writeback%s\n", ppc_function_unit_name[busy->unit],
+ busy->nr_writebacks, busy->nr_writebacks == 1 ? "" : "s"));
if (busy->int_busy) {
for(i = 0; i < 32; i++) {
if (((1 << i) & busy->int_busy) != 0) {
\f
# Advance state to next cycle, releasing any registers allocated
void::model-internal::model_new_cycle:model_data *model_ptr
- model_busy *cur_busy = model_ptr->busy_list;
+ model_busy *cur_busy = model_ptr->busy_head.next;
model_busy *free_list = model_ptr->free_list;
- model_busy *next_busy = (model_busy *)0;
+ model_busy *busy_tail = &model_ptr->busy_head;
+ int nr_writebacks = model_ptr->max_nr_writebacks;
model_busy *next;
model_ptr->nr_cycles++;
+ TRACE(trace_model,("New cycle %lu\n", (unsigned long)model_ptr->nr_cycles));
for ( ; cur_busy; cur_busy = next) {
next = cur_busy->next;
- if (--cur_busy->done <= 0) { /* function unit done, release registers */
- model_ptr->int_busy &= ~cur_busy->int_busy;
- model_ptr->fp_busy &= ~cur_busy->fp_busy;
- model_ptr->cr_fpscr_busy &= ~cur_busy->cr_fpscr_busy;
- if (cur_busy->spr_busy != PPC_NO_SPR)
- model_ptr->spr_busy[cur_busy->spr_busy] = 0;
-
- if (WITH_TRACE && ppc_trace[trace_model])
- model_trace_release(model_ptr, cur_busy);
-
- model_ptr->busy[cur_busy->unit] = 0;
- cur_busy->next = free_list;
- free_list = cur_busy;
+ if (--cur_busy->done <= 0) { /* function unit done, release registers if we have writeback slots */
+ nr_writebacks -= cur_busy->nr_writebacks;
+ if (nr_writebacks >= 0) {
+ model_ptr->int_busy &= ~cur_busy->int_busy;
+ model_ptr->fp_busy &= ~cur_busy->fp_busy;
+ model_ptr->cr_fpscr_busy &= ~cur_busy->cr_fpscr_busy;
+ if (cur_busy->spr_busy != PPC_NO_SPR)
+ model_ptr->spr_busy[cur_busy->spr_busy] = 0;
+
+ if (WITH_TRACE && ppc_trace[trace_model])
+ model_trace_release(model_ptr, cur_busy);
+
+ model_ptr->busy[cur_busy->unit] = 0;
+ cur_busy->next = free_list;
+ free_list = cur_busy;
+ }
+ else { /* writeback slots not available */
+ TRACE(trace_model,("%d writeback slot%s not available for %s\n",
+ cur_busy->nr_writebacks,
+ cur_busy->nr_writebacks == 1 ? " is" : "s are",
+ ppc_function_unit_name[cur_busy->unit]));
+ cur_busy->done++; /* undo -- above */
+ model_ptr->nr_stalls_writeback++;
+ busy_tail->next = cur_busy;
+ busy_tail = cur_busy;
+ }
}
else if (--cur_busy->issue <= 0) { /* function unit pipelined, allow new use */
TRACE(trace_model,("pipeline, %s ready for next client\n", ppc_function_unit_name[cur_busy->unit]));
model_ptr->busy[cur_busy->unit] = 0;
- cur_busy->next = next_busy;
- next_busy = cur_busy;
+ busy_tail->next = cur_busy;
+ busy_tail = cur_busy;
}
else {
TRACE(trace_model,("%s still working, issue = %d, done = %d\n",
ppc_function_unit_name[cur_busy->unit],
cur_busy->issue,
cur_busy->done));
- cur_busy->next = next_busy;
- next_busy = cur_busy;
+ busy_tail->next = cur_busy;
+ busy_tail = cur_busy;
}
}
- model_ptr->busy_list = next_busy;
+ busy_tail->next = (model_busy *)0;
+ model_ptr->busy_tail = busy_tail;
model_ptr->free_list = free_list;
# Mark a function unit as busy, return the busy structure
else {
busy = model_ptr->free_list;
model_ptr->free_list = busy->next;
+ busy->next = (model_busy *)0;
+ busy->int_busy = 0;
+ busy->fp_busy = 0;
+ busy->cr_fpscr_busy = 0;
+ busy->nr_writebacks = 0;
}
- busy->next = model_ptr->busy_list;
+
busy->unit = unit;
busy->issue = issue;
busy->done = done;
- busy->int_busy = 0;
- busy->fp_busy = 0;
- busy->cr_fpscr_busy = 0;
busy->spr_busy = PPC_NO_SPR;
- model_ptr->busy_list = busy;
+ model_ptr->busy_tail->next = busy;
+ model_ptr->busy_tail = busy;
model_ptr->busy[unit] = 1;
model_ptr->nr_units[unit]++;
return busy;
# Serialize the processor, waiting for all instructions to drain out before adding an instruction.
void::model-function::model_serialize:itable_index index, model_data *model_ptr
- while (model_ptr->busy_list) {
+ while (model_ptr->busy_head.next) {
TRACE(trace_model,("waiting for pipeline to empty\n"));
model_ptr->nr_stalls_serialize++;
model_new_cycle(model_ptr);
busy_ptr = model_wait_for_unit(index, model_ptr, &model_ptr->timing[index]);
model_ptr->int_busy |= out_mask;
busy_ptr->int_busy |= out_mask;
+ if (out_mask)
+ busy_ptr->nr_writebacks = (PPC_ONE_BIT_SET_P(out_mask)) ? 1 : 2;
+
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, out_mask, 0, 0);
-# Schedule an instruction that takes integer input registers and produces output registers & sets some CR registers
+# Schedule an instruction that takes integer input registers and produces output registers & sets a CR register
void::model-function::ppc_insn_int_cr:itable_index index, model_data *model_ptr, const unsigned32 out_mask, const unsigned32 in_mask, const unsigned32 cr_mask
const unsigned32 int_mask = out_mask | in_mask;
model_busy *busy_ptr;
busy_ptr->int_busy |= out_mask;
model_ptr->cr_fpscr_busy |= cr_mask;
busy_ptr->cr_fpscr_busy |= cr_mask;
+ if (out_mask)
+ busy_ptr->nr_writebacks = (PPC_ONE_BIT_SET_P(out_mask)) ? 1 : 2;
+
+ if (cr_mask)
+ busy_ptr->nr_writebacks++;
+
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, out_mask, 0, cr_mask);
busy_ptr = model_wait_for_unit(index, model_ptr, &model_ptr->timing[index]);
model_ptr->cr_fpscr_busy |= out_mask;
busy_ptr->cr_fpscr_busy |= out_mask;
+ if (out_mask)
+ busy_ptr->nr_writebacks = 1;
+
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, 0, 0, out_mask);
-# Schedule an instruction that takes floating point input registers and produces output fp registers
+# Schedule an instruction that takes floating point input registers and produces an output fp register
void::model-function::ppc_insn_float:itable_index index, model_data *model_ptr, const unsigned32 out_mask, const unsigned32 in_mask
const unsigned32 fp_mask = out_mask | in_mask;
model_busy *busy_ptr;
busy_ptr = model_wait_for_unit(index, model_ptr, &model_ptr->timing[index]);
model_ptr->fp_busy |= out_mask;
busy_ptr->fp_busy |= out_mask;
+ busy_ptr->nr_writebacks = 1;
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, 0, out_mask, 0);
-# Schedule an instruction that takes floating point input registers and produces output fp registers & sets some CR regs
+# Schedule an instruction that takes floating point input registers and produces an output fp register & sets a CR reg
void::model-function::ppc_insn_float_cr:itable_index index, model_data *model_ptr, const unsigned32 out_mask, const unsigned32 in_mask, const unsigned32 cr_mask
const unsigned32 fp_mask = out_mask | in_mask;
model_busy *busy_ptr;
busy_ptr->fp_busy |= out_mask;
model_ptr->cr_fpscr_busy |= cr_mask;
busy_ptr->cr_fpscr_busy |= cr_mask;
+ busy_ptr->nr_writebacks = (cr_mask) ? 2 : 1;
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, 0, out_mask, cr_mask);
busy_ptr->int_busy |= out_int_mask;
model_ptr->fp_busy |= out_fp_mask;
busy_ptr->fp_busy |= out_fp_mask;
+ busy_ptr->nr_writebacks = ((out_int_mask) ? 1 : 0) + ((out_fp_mask) ? 1 : 0);
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, out_int_mask, out_fp_mask, 0);
return;
busy_ptr = model_wait_for_unit(index, model_ptr, &model_ptr->timing[index]);
model_ptr->int_busy |= int_mask;
busy_ptr->int_busy |= int_mask;
+ busy_ptr->nr_writebacks = 1;
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, int_mask, 0, 0);
busy_ptr = model_wait_for_unit(index, model_ptr, &model_ptr->timing[index]);
busy_ptr->spr_busy = nSPR;
model_ptr->spr_busy[nSPR] = 1;
+ busy_ptr->nr_writebacks = 1;
TRACE(trace_model,("Making register %s busy.\n", spr_name(nSPR)));
# Schedule a MFCR instruction that moves the CR into an integer regsiter
busy_ptr = model_wait_for_unit(index, model_ptr, &model_ptr->timing[index]);
model_ptr->int_busy |= int_mask;
busy_ptr->int_busy |= int_mask;
+ busy_ptr->nr_writebacks = 1;
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, int_mask, 0, 0);
busy_ptr->cr_fpscr_busy |= cr_mask;
model_ptr->cr_fpscr_busy |= cr_mask;
model_ptr->nr_mtcrf_crs[nr_crs]++;
+ busy_ptr->nr_writebacks = 1;
if (WITH_TRACE && ppc_trace[trace_model])
model_trace_make_busy(model_ptr, 0, 0, cr_mask);
\f
model_data *::model-function::model_create:cpu *processor
model_data *model_ptr = ZALLOC(model_data);
- ASSERT(CURRENT_MODEL > 0 && CURRENT_MODEL < nr_models);
model_ptr->name = model_name[CURRENT_MODEL];
model_ptr->timing = model_time_mapping[CURRENT_MODEL];
model_ptr->processor = processor;
model_ptr->nr_cycles = 1;
+ model_ptr->busy_tail = &model_ptr->busy_head;
+ switch (CURRENT_MODEL) {
+ case MODEL_ppc601: model_ptr->max_nr_writebacks = 1; break; /* ??? */
+ case MODEL_ppc603: model_ptr->max_nr_writebacks = 2; break;
+ case MODEL_ppc603e: model_ptr->max_nr_writebacks = 2; break;
+ case MODEL_ppc604: model_ptr->max_nr_writebacks = 2; break;
+ default: error ("Unknown model %d\n", CURRENT_MODEL);
+ }
return model_ptr;
void::model-function::model_init:model_data *model_ptr
void::model-function::model_halt:model_data *model_ptr
/* Let pipeline drain */
- while (model_ptr->busy_list)
+ while (model_ptr->busy_head.next)
model_new_cycle(model_ptr);
+unsigned_word::model-function::model_get_number_of_stalls:model_data *model_ptr
+ return (model_ptr->nr_stalls_data
+ + model_ptr->nr_stalls_unit
+ + model_ptr->nr_stalls_serialize
+ + model_ptr->nr_stalls_writeback);
+
+unsigned_word::model-function::model_get_number_of_cycles:model_data *model_ptr
+ return (model_ptr->nr_cycles);
+
model_print *::model-function::model_mon_info:model_data *model_ptr
model_print *head;
model_print *tail;
tail->suffix_singular = " waiting for serialization";
}
+ if (model_ptr->nr_stalls_writeback) {
+ tail->next = ZALLOC(model_print);
+ tail = tail->next;
+ tail->count = model_ptr->nr_stalls_writeback;
+ tail->name = "";
+ tail->suffix_plural = "times a write-back slot was unavailable";
+ tail->suffix_singular = "time a writeback was unavailable";
+ }
+
if (model_ptr->nr_branches) {
tail->next = ZALLOC(model_print);
tail = tail->next;
::internal::illegal
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
- return 0;
# The following (floating point unavailable) instruction is `known' by gen
# executed but floating point is make unavailable by the MSR
::internal::floating_point_unavailable
floating_point_unavailable_interrupt(processor, cia);
- return 0;
#
int rbit = 0;
int xbit = 0;
int sign = EXTRACTED64(frb, 0, 0);
- if (EXTRACTED64(frb, 1, 11) == 2047 && EXTRACTED64(frb, 12, 63) == 0)
- goto Infinity_Operand;
- if (EXTRACTED64(frb, 1, 11) == 2047 && EXTRACTED64(frb, 12, 12) == 0)
- goto SNaN_Operand;
- if (EXTRACTED64(frb, 1, 11) == 2047 && EXTRACTED64(frb, 12, 12) == 1)
- goto QNaN_Operand;
- if (EXTRACTED64(frb, 1, 11) > 1086) goto Large_Operand;
- if (EXTRACTED64(frb, 1, 11) > 0) exp = EXTRACTED64(frb, 1, 11) - 1023;
- if (EXTRACTED64(frb, 1, 11) == 0) exp = -1022;
- if (EXTRACTED64(frb, 1, 11) > 0) { /* normal */
- frac = BIT64(1) | INSERTED64(EXTRACTED64(frb, 12, 63), 2, 53);
- frac64 = 0;
- }
- if (EXTRACTED64(frb, 1, 11) == 0) { /* denorm */
- frac = INSERTED64(EXTRACTED64(frb, 12, 63), 2, 53);
- frac64 = 0;
- }
- gbit = 0, rbit = 0, xbit = 0;
- for (i = 1; i <= 63 - exp; i++) {
- xbit = rbit | xbit;
- rbit = gbit;
- gbit = frac64;
- frac64 = EXTRACTED64(frac, 63, 63);
- frac = INSERTED64(EXTRACTED64(frac, 0, 62), 1, 63);
- }
- Round_Integer(processor, sign, &frac, &frac64, gbit, rbit, xbit, round_mode);
- if (sign == 1) { /* frac[0:64] = ~frac[0:64] + 1 */
- frac = ~frac;
- frac64 ^= 1;
- frac += (frac64 ? 1 : 0);
- frac64 = (frac64 + 1) & 0x1;
- }
- if (tgt_precision == 32 /* can ignore frac64 in compare */
- && (signed64)frac > (signed64)MASK64(33+1, 63)/*2^31-1 >>1*/)
- goto Large_Operand;
- if (tgt_precision == 64 /* can ignore frac64 in compare */
- && (signed64)frac > (signed64)MASK64(1+1, 63)/*2^63-1 >>1*/)
- goto Large_Operand;
- if (tgt_precision == 32 /* can ignore frac64 in compare */
- && (signed64)frac < (signed64)MASK64(0, 32+1)/*-2^31 >>1*/)
- goto Large_Operand;
- if (tgt_precision == 64 /* can ignore frac64 in compare */
- && (signed64)frac < (signed64)MASK64(0, 0+1)/*-2^63 >>1*/)
- goto Large_Operand;
- FPSCR_SET_XX(FPSCR & fpscr_fi);
- if (tgt_precision == 32)
- *frt = MASKED64(*frt, 0, 31) | (EXTRACTED64(frac, 33, 63) << 1) | frac64;
- if (tgt_precision == 64)
- *frt = (EXTRACTED64(frac, 1, 63) << 1) | frac64;
- /*FPSCR[fprf] = undefined */
- goto Done;
- /**/
- Infinity_Operand:
+ /***/
+ if (EXTRACTED64(frb, 1, 11) == 2047 && EXTRACTED64(frb, 12, 63) == 0)
+ GOTO(Infinity_Operand);
+ if (EXTRACTED64(frb, 1, 11) == 2047 && EXTRACTED64(frb, 12, 12) == 0)
+ GOTO(SNaN_Operand);
+ if (EXTRACTED64(frb, 1, 11) == 2047 && EXTRACTED64(frb, 12, 12) == 1)
+ GOTO(QNaN_Operand);
+ if (EXTRACTED64(frb, 1, 11) > 1086) GOTO(Large_Operand);
+ if (EXTRACTED64(frb, 1, 11) > 0) exp = EXTRACTED64(frb, 1, 11) - 1023;
+ if (EXTRACTED64(frb, 1, 11) == 0) exp = -1022;
+ if (EXTRACTED64(frb, 1, 11) > 0) { /* normal */
+ frac = BIT64(1) | INSERTED64(EXTRACTED64(frb, 12, 63), 2, 53);
+ frac64 = 0;
+ }
+ if (EXTRACTED64(frb, 1, 11) == 0) { /* denorm */
+ frac = INSERTED64(EXTRACTED64(frb, 12, 63), 2, 53);
+ frac64 = 0;
+ }
+ gbit = 0, rbit = 0, xbit = 0;
+ for (i = 1; i <= 63 - exp; i++) {
+ xbit = rbit | xbit;
+ rbit = gbit;
+ gbit = frac64;
+ frac64 = EXTRACTED64(frac, 63, 63);
+ frac = INSERTED64(EXTRACTED64(frac, 0, 62), 1, 63);
+ }
+ Round_Integer(processor, sign, &frac, &frac64, gbit, rbit, xbit, round_mode);
+ if (sign == 1) { /* frac[0:64] = ~frac[0:64] + 1 */
+ frac = ~frac;
+ frac64 ^= 1;
+ frac += (frac64 ? 1 : 0);
+ frac64 = (frac64 + 1) & 0x1;
+ }
+ if (tgt_precision == 32 /* can ignore frac64 in compare */
+ && (signed64)frac > (signed64)MASK64(33+1, 63)/*2^31-1 >>1*/)
+ GOTO(Large_Operand);
+ if (tgt_precision == 64 /* can ignore frac64 in compare */
+ && (signed64)frac > (signed64)MASK64(1+1, 63)/*2^63-1 >>1*/)
+ GOTO(Large_Operand);
+ if (tgt_precision == 32 /* can ignore frac64 in compare */
+ && (signed64)frac < (signed64)MASK64(0, 32+1)/*-2^31 >>1*/)
+ GOTO(Large_Operand);
+ if (tgt_precision == 64 /* can ignore frac64 in compare */
+ && (signed64)frac < (signed64)MASK64(0, 0+1)/*-2^63 >>1*/)
+ GOTO(Large_Operand);
+ FPSCR_SET_XX(FPSCR & fpscr_fi);
+ if (tgt_precision == 32)
+ *frt = MASKED64(*frt, 0, 31) | (EXTRACTED64(frac, 33, 63) << 1) | frac64;
+ if (tgt_precision == 64)
+ *frt = (EXTRACTED64(frac, 1, 63) << 1) | frac64;
+ /*FPSCR[fprf] = undefined */
+ GOTO(Done);
+ /**/
+ LABEL(Infinity_Operand):
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
FPSCR_OR_VX(fpscr_vxcvi);
}
/* FPSCR[FPRF] = undefined */
}
- goto Done;
+ GOTO(Done);
/**/
- SNaN_Operand:
+ LABEL(SNaN_Operand):
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
FPSCR_OR_VX(fpscr_vxsnan | fpscr_vxcvi);
if (tgt_precision == 64) *frt = BIT64(0); /*0x8000_0000_0000_0000*/
/* FPSCR[fprf] = undefined */
}
- goto Done;
+ GOTO(Done);
/**/
- QNaN_Operand:
+ LABEL(QNaN_Operand):
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
FPSCR_OR_VX(fpscr_vxcvi);
if (tgt_precision == 64) *frt = BIT64(0);/*0x8000_0000_0000_0000*/
/* FPSCR[fprf] = undefined */
}
- goto Done;
+ GOTO(Done);
/**/
- Large_Operand:
+ LABEL(Large_Operand):
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
FPSCR_OR_VX(fpscr_vxcvi);
/* FPSCR[fprf] = undefined */
}
/**/
- Done:
+ LABEL(Done):
# extract out raw fields of a FP number
: 0);
int::function::is_inf:unsigned64 frs, int single
int exp = biased_exp(frs, single);
- int frac = fraction(frs, single);
+ unsigned64 frac = fraction(frs, single);
return (exp == (single ? 255 : 2047) && frac == 0
? sign(frs)
: 0);
int::function::is_NaN:unsigned64 frs, int single
int exp = biased_exp(frs, single);
- int frac = fraction(frs, single);
+ unsigned64 frac = fraction(frs, single);
return (exp == (single ? 255 : 2047) && frac != 0
? sign(frs)
: 0);
}
else { /* arrith, frsp */
*frt = select_qnan(fra, frb, frc,
- instruction_is_frsp, 0/*generate*/, single);
+ instruction_is_frsp, 1/*generate*/, single);
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
FPSCR_SET_FPRF(fpscr_rf_quiet_nan);
+# detect divide by zero
+int::function::is_invalid_zero_divide:cpu *processor, unsigned_word cia, unsigned64 fra, unsigned64 frb, int single
+ int fail = 0;
+ if (is_zero (frb)) {
+ FPSCR_SET_ZX (1);
+ fail = 1;
+ }
+ return fail;
+
+
+
+
+# handle case of invalid operation
+void::function::invalid_zero_divide_operation:cpu *processor, unsigned_word cia, unsigned64 *frt, unsigned64 fra, unsigned64 frb, int single
+ if (FPSCR & fpscr_ze) {
+ /* zero-divide exception enabled */
+ /* FRT unchaged */
+ FPSCR_SET_FR(0);
+ FPSCR_SET_FI(0);
+ /* fpscr_FPRF unchanged */
+ }
+ else {
+ /* zero-divide exception disabled */
+ FPSCR_SET_FR(0);
+ FPSCR_SET_FI(0);
+ if ((sign (fra) < 0 && sign (frb) < 0)
+ || (sign (fra) > 0 && sign (frb) > 0)) {
+ *frt = MASK64 (1, 11); /* 0 : 2047 : 0..0 */
+ FPSCR_SET_FPRF(fpscr_rf_pos_infinity);
+ }
+ else {
+ *frt = MASK64 (0, 11); /* 1 : 2047 : 0..0 */
+ FPSCR_SET_FPRF(fpscr_rf_neg_infinity);
+ }
+ }
+
+
+
+
+
+#
+# 0.0.0.0 Illegal instruction used for kernel mode emulation
+#
+0.0,6./,11./,16./,21./,31.1:X:::instruction_call
+ if (!os_emul_instruction_call(processor, cia, real_addr(cia, 1)))
+ program_interrupt(processor, cia,
+ illegal_instruction_program_interrupt);
+
#
# I.2.4.1 Branch Instructions
#
-0.18,6.LI,30.AA,31.LK:I:t::Branch
+0.18,6.LI,30.AA,31.LK:I:::Branch
*601: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603e:PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*604: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
+ /* option_mpc860c0:
+ No problem here because this branch is predicted taken (unconditional). */
if (AA) NIA = IEA(EXTS(LI_0b00));
else NIA = IEA(CIA + EXTS(LI_0b00));
if (LK) LR = (spreg)CIA+4;
- model_branches(cpu_model(processor), 1, -1);
+ if (CURRENT_MODEL_ISSUE > 0)
+ model_branches(cpu_model(processor), 1, -1);
-0.16,6.BO,11.BI,16.BD,30.AA,31.LK:B:t::Branch Conditional
+0.16,6.BO,11.BI,16.BD,30.AA,31.LK:B:::Branch Conditional
*601: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603e:PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*604: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
int M, ctr_ok, cond_ok, succeed;
- if (! BO{0})
+ if (CURRENT_MODEL_ISSUE > 0 && ! BO{0})
model_wait_for_cr(cpu_model(processor), BIT32_BI);
if (is_64bit_implementation && is_64bit_mode) M = 0;
else M = 32;
else
succeed = 0;
if (LK) LR = (spreg)IEA(CIA + 4);
- model_branches(cpu_model(processor), succeed, BO);
+ if (option_mpc860c0 && (!BO{0} || !BO{2}) && !BO{4}) {
+ /* This branch is predicted as "normal".
+ If this is a forward branch and it is near the end of a page,
+ we've detected a problematic branch. */
+ if (succeed && NIA > CIA) {
+ if (PAGE_SIZE - (CIA & (PAGE_SIZE-1)) <= option_mpc860c0)
+ program_interrupt(processor, cia, mpc860c0_instruction_program_interrupt);
+ }
+ }
+ if (CURRENT_MODEL_ISSUE > 0)
+ model_branches(cpu_model(processor), succeed, BO);
if (! BO{0}) {
int reverse;
if (BO{4}) { /* branch prediction bit set, reverse sense of test */
} else { /* branch prediction bit not set */
reverse = EXTS(BD_0b00) >= 0;
}
- model_branch_predict(cpu_model(processor), reverse ? !succeed : succeed);
+ if (CURRENT_MODEL_ISSUE > 0)
+ model_branch_predict(cpu_model(processor), reverse ? !succeed : succeed);
}
-0.19,6.BO,11.BI,16./,21.16,31.LK:XL:t::Branch Conditional to Link Register
+0.19,6.BO,11.BI,16./,21.16,31.LK:XL:::Branch Conditional to Link Register
*601: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603e:PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
int M, ctr_ok, cond_ok, succeed;
if (is_64bit_implementation && is_64bit_mode) M = 0;
else M = 32;
- if (! BO{0})
+ if (CURRENT_MODEL_ISSUE > 0 && ! BO{0})
model_wait_for_cr(cpu_model(processor), BIT32_BI);
if (!BO{2}) CTR = CTR - 1;
ctr_ok = BO{2} || ((MASKED(CTR, M, 63) != 0) != BO{3});
else
succeed = 0;
if (LK) LR = (spreg)IEA(CIA + 4);
- model_branches(cpu_model(processor), succeed, BO);
- if (! BO{0})
- model_branch_predict(cpu_model(processor), BO{4} ? !succeed : succeed);
+ if (option_mpc860c0 && (!BO{0} || !BO{2}) && !BO{4}) {
+ /* This branch is predicted as not-taken.
+ If this is a forward branch and it is near the end of a page,
+ we've detected a problematic branch. */
+ if (succeed && NIA > CIA) {
+ if (PAGE_SIZE - (CIA & (PAGE_SIZE-1)) <= option_mpc860c0)
+ program_interrupt(processor, cia, mpc860c0_instruction_program_interrupt);
+ }
+ }
+ if (CURRENT_MODEL_ISSUE > 0) {
+ model_branches(cpu_model(processor), succeed, BO);
+ if (! BO{0})
+ model_branch_predict(cpu_model(processor), BO{4} ? !succeed : succeed);
+ }
-0.19,6.BO,11.BI,16./,21.528,31.LK:XL:t::Branch Conditional to Count Register
+0.19,6.BO,11.BI,16./,21.528,31.LK:XL:::Branch Conditional to Count Register
*601: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*603e:PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
*604: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 1, 0
int cond_ok, succeed;
- if (! BO{0})
+ if (CURRENT_MODEL_ISSUE > 0 && ! BO{0})
model_wait_for_cr(cpu_model(processor), BIT32_BI);
cond_ok = BO{0} || (CR{BI} == BO{1});
if (cond_ok) {
else
succeed = 0;
if (LK) LR = (spreg)IEA(CIA + 4);
- model_branches(cpu_model(processor), succeed, BO);
- if (! BO{0})
- model_branch_predict(cpu_model(processor), BO{4} ? !succeed : succeed);
+ if (option_mpc860c0 && (!BO{0} || !BO{2}) && !BO{4}) {
+ /* This branch is predicted as not-taken.
+ If this is a forward branch and it is near the end of a page,
+ we've detected a problematic branch. */
+ if (succeed && NIA > CIA) {
+ if (PAGE_SIZE - (CIA & (PAGE_SIZE-1)) <= option_mpc860c0)
+ program_interrupt(processor, cia, mpc860c0_instruction_program_interrupt);
+ }
+ }
+ if (CURRENT_MODEL_ISSUE > 0) {
+ model_branches(cpu_model(processor), succeed, BO);
+ if (! BO{0})
+ model_branch_predict(cpu_model(processor), BO{4} ? !succeed : succeed);
+ }
#
# I.2.4.2 System Call Instruction
#
-0.17,6./,11./,16./,30.1,31./:SC:t::System Call
+0.17,6./,11./,16./,30.1,31./:SC:::System Call
*601: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603: PPC_UNIT_SRU, PPC_UNIT_SRU, 3, 3, 0
*603e:PPC_UNIT_SRU, PPC_UNIT_SRU, 3, 3, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
- model_serialize(my_index, cpu_model(processor));
+ if (CURRENT_MODEL_ISSUE > 0)
+ model_serialize(MY_INDEX, cpu_model(processor));
system_call_interrupt(processor, cia);
#
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
*rT = MEM(unsigned, EA, 1);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*rT = MEM(unsigned, EA, 1);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
*rT = MEM(unsigned, EA, 2);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*rT = MEM(unsigned, EA, 2);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
*rT = MEM(signed, EA, 2);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*rT = MEM(signed, EA, 2);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*rT = MEM(signed, EA, 2);
+ *rA = EA;
PPC_INSN_INT(RT_BITMASK | RA_BITMASK, RA_BITMASK, 0);
0.31,6.RT,11.RA,16.RB,21.375,31./:X:::Load Halfword Algebraic with Update Indexed
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
*rT = MEM(unsigned, EA, 4);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*rT = MEM(unsigned, EA, 4);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
unsigned_word EA;
- if (RA == 0 || RA == RT)
+ if (RA_is_0 || RA == RT)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
0.58,6.RT,11.RA,16.DS,30.2:DS:64::Load Word Algebraic
# unsigned_word b;
# unsigned_word EA;
-# if (RA == 0) b = 0;
+# if (RA_is_0) b = 0;
# else b = *rA;
# EA = b + EXTS(DS_0b00);
# *rT = MEM(signed, EA, 4);
0.31,6.RT,11.RA,16.RB,21.341,31./:X:64::Load Word Algebraic Indexed
# unsigned_word b;
# unsigned_word EA;
-# if (RA == 0) b = 0;
+# if (RA_is_0) b = 0;
# else b = *rA;
# EA = b + *rB;;
# *rT = MEM(signed, EA, 4);
0.31,6.RT,11.RA,16.RB,21.373,31./:X:64::Load Word Algebraic with Update Indexed
# unsigned_word EA;
-# if (RA == 0 || RA == RT)
+# if (RA_is_0 || RA == RT)
# program_interrupt(processor, cia
# illegal_instruction_program_interrupt);
# EA = *rA + *rB;
0.58,6.RT,11.RA,16.DS,30.0:DS:64::Load Doubleword
# unsigned_word b;
# unsigned_word EA;
-# if (RA == 0) b = 0;
+# if (RA_is_0) b = 0;
# else b = *rA;
# EA = b + EXTS(DS_0b00);
# *rT = MEM(unsigned, EA, 8);
0.31,6.RT,11.RA,16.RB,21.21,31./:X:64::Load Doubleword Indexed
# unsigned_word b;
# unsigned_word EA;
-# if (RA == 0) b = 0;
+# if (RA_is_0) b = 0;
# else b = *rA;
# EA = b + *rB;
# *rT = MEM(unsigned, EA, 8);
0.58,6.RT,11.RA,16.DS,30.1:DS:64::Load Doubleword with Update
# unsigned_word EA;
-# if (RA == 0 || RA == RT)
+# if (RA_is_0 || RA == RT)
# program_interrupt(processor, cia
# illegal_instruction_program_interrupt);
# EA = *rA + EXTS(DS_0b00);
0.31,6.RT,11.RA,16.RB,21.53,31./:DS:64::Load Doubleword with Update Indexed
# unsigned_word EA;
-# if (RA == 0 || RA == RT)
+# if (RA_is_0 || RA == RT)
# program_interrupt(processor, cia
# illegal_instruction_program_interrupt);
# EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
STORE(EA, 1, *rS);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
STORE(EA, 1, *rS);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
STORE(EA, 2, *rS);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
STORE(EA, 2, *rS);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
STORE(EA, 4, *rS);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
STORE(EA, 4, *rS);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
0.62,6.RS,11.RA,16.DS,30.0:DS:64::Store Doubleword
# unsigned_word b;
# unsigned_word EA;
-# if (RA == 0) b = 0;
+# if (RA_is_0) b = 0;
# else b = *rA;
# EA = b + EXTS(DS_0b00);
# STORE(EA, 8, *rS);
0.31,6.RS,11.RA,16.RB,21.149,31./:X:64::Store Doubleword Indexed
# unsigned_word b;
# unsigned_word EA;
-# if (RA == 0) b = 0;
+# if (RA_is_0) b = 0;
# else b = *rA;
# EA = b + *rB;
# STORE(EA, 8, *rS);
0.62,6.RS,11.RA,16.DS,30.1:DS:64::Store Doubleword with Update
# unsigned_word EA;
-# if (RA == 0)
+# if (RA_is_0)
# program_interrupt(processor, cia
# illegal_instruction_program_interrupt);
# EA = *rA + EXTS(DS_0b00);
# *rA = EA;
0.31,6.RS,11.RA,16.RB,21.181,31./:X:64::Store Doubleword with Update Indexed
# unsigned_word EA;
-# if (RA == 0)
+# if (RA_is_0)
# program_interrupt(processor, cia
# illegal_instruction_program_interrupt);
# EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*rT = SWAP_2(MEM(unsigned, EA, 2));
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*rT = SWAP_4(MEM(unsigned, EA, 4));
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
STORE(EA, 2, SWAP_2(*rS));
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
STORE(EA, 4, SWAP_4(*rS));
# I.3.3.5 Fixed-Point Load and Store Multiple Instrctions
#
-0.46,6.RT,11.RA,16.D:D:be::Load Multiple Word
+0.46,6.RT,11.RA,16.D:D:::Load Multiple Word
+ unsigned_word EA;
+ unsigned_word b;
+ int r;
+ if (RA_is_0) b = 0;
+ else b = *rA;
+ EA = b + EXTS(D);
+ r = RT;
+ if (RA >= r)
+ program_interrupt(processor, cia,
+ illegal_instruction_program_interrupt);
+ if (CURRENT_ALIGNMENT == STRICT_ALIGNMENT || (EA % 4 != 0))
+ alignment_interrupt(processor, cia, EA);
+ while (r <= 31) {
+ GPR(r) = MEM(unsigned, EA, 4);
+ r = r + 1;
+ EA = EA + 4;
+ }
-0.47,6.RS,11.RA,16.D:D:be::Store Multiple Word
+0.47,6.RS,11.RA,16.D:D:::Store Multiple Word
+ unsigned_word EA;
+ unsigned_word b;
+ int r;
+ if (RA_is_0) b = 0;
+ else b = *rA;
+ EA = b + EXTS(D);
+ if (CURRENT_ALIGNMENT == STRICT_ALIGNMENT
+ || (EA % 4 != 0))
+ alignment_interrupt(processor, cia, EA);
+ r = RS;
+ while (r <= 31) {
+ STORE(EA, 4, GPR(r));
+ r = r + 1;
+ EA = EA + 4;
+ }
#
# I.3.3.6 Fixed-Point Move Assist Instructions
#
-0.31,6.RT,11.RA,16.NB,21.597,31./:X:be::Load String Word Immediate
-
-0.31,6.RT,11.RA,16.RB,21.533,31./:X:be::Load String Word Indexed
+0.31,6.RT,11.RA,16.NB,21.597,31./:X:::Load String Word Immediate
+ unsigned_word EA;
+ int n;
+ int r;
+ int i;
+ int nr;
+ if (RA_is_0) EA = 0;
+ else EA = *rA;
+ if (NB == 0) n = 32;
+ else n = NB;
+ r = RT - 1;
+ i = 32;
+ nr = (n + 3) / 4;
+ if ((RT + nr >= 32)
+ ? (RA >= RT || RA < (RT + nr) % 32)
+ : (RA >= RT && RA < RT + nr))
+ program_interrupt(processor, cia,
+ illegal_instruction_program_interrupt);
+ if (CURRENT_ALIGNMENT == STRICT_ALIGNMENT)
+ alignment_interrupt(processor, cia, EA);
+ while (n > 0) {
+ if (i == 32) {
+ r = (r + 1) % 32;
+ GPR(r) = 0;
+ }
+ GPR(r) |= INSERTED(MEM(unsigned, EA, 1), i, i+7);
+ if (i == 64) i = 32;
+ EA = EA + 1;
+ n = n - 1;
+ }
-0.31,6.RS,11.RA,16.NB,21.725,31./:X:be::Store String Word Immedate
+0.31,6.RT,11.RA,16.RB,21.533,31./:X:::Load String Word Indexed
+ unsigned_word EA;
+ unsigned_word b;
+ int n;
+ int r;
+ int i;
+ int nr;
+ if (RA_is_0) b = 0;
+ else b = *rA;
+ EA = b + *rB;
+ n = EXTRACTED32(XER, 25, 31);
+ r = RT - 1;
+ i = 32;
+ nr = (n + 3) / 4;
+ if (((RT + n >= 32)
+ ? ((RA >= RT || RA < (RT + n) % 32)
+ || (RB >= RT || RB < (RT + n) % 32))
+ : ((RA >= RT && RA < RT + n)
+ || (RB >= RT && RB < RT + n)))
+ || (RT == RA || RT == RB))
+ program_interrupt(processor, cia,
+ illegal_instruction_program_interrupt);
+ if (CURRENT_ALIGNMENT == STRICT_ALIGNMENT)
+ alignment_interrupt(processor, cia, EA);
+ while (n > 0) {
+ if (i == 32) {
+ r = (r + 1) % 32;
+ GPR(i) = 0;
+ }
+ GPR(r) |= INSERTED(MEM(unsigned, EA, 1), i, i+7);
+ i = i + 8;
+ if (i == 64) i = 32;
+ EA = EA + 1;
+ n = n - 1;
+ }
-0.31,6.RS,11.RA,16.RB,21.661,31./:X:be::Store String Word Indexed
+0.31,6.RS,11.RA,16.NB,21.725,31./:X:::Store String Word Immedate
+ unsigned_word EA;
+ int n;
+ int r;
+ int i;
+ if (RA_is_0) EA = 0;
+ else EA = *rA;
+ if (NB == 0) n = 32;
+ else n = NB;
+ r = RS - 1;
+ i = 32;
+ if (CURRENT_ALIGNMENT == STRICT_ALIGNMENT)
+ alignment_interrupt(processor, cia, EA);
+ while (n > 0) {
+ if (i == 32) r = (r + 1) % 32;
+ STORE(EA, 1, EXTRACTED(GPR(r), i, i+7));
+ i = i + 8;
+ if (i == 64) i = 32;
+ EA = EA + 1;
+ n = n - 1;
+ }
+
+0.31,6.RS,11.RA,16.RB,21.661,31./:X:::Store String Word Indexed
+ unsigned_word EA;
+ unsigned_word b;
+ int n;
+ int r;
+ int i;
+ if (RA_is_0) b = 0;
+ else b = *rA;
+ EA = b + *rB;
+ if (CURRENT_ALIGNMENT == STRICT_ALIGNMENT)
+ alignment_interrupt(processor, cia, EA);
+ n = EXTRACTED32(XER, 25, 31);
+ r = RS - 1;
+ i = 32;
+ while (n > 0) {
+ if (i == 32) r = (r + 1) % 32;
+ STORE(EA, 1, EXTRACTED(GPR(r), i, i+7));
+ i = i + 8;
+ if (i == 64) i = 32;
+ EA = EA + 1;
+ n = n - 1;
+ }
#
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
RESERVE = 1;
0.31,6.RT,11.RA,16.RB,21.84,31./:X:64::Load Doubleword And Reserve Indexed
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
RESERVE = 1;
*604: PPC_UNIT_BPU, PPC_UNIT_BPU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
if (RESERVE) {
0.31,6.RS,11.RA,16.RB,21.214,31.1:X:64::Store Doubleword Conditional Indexed
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
if (RESERVE) {
# I.3.3.9 Fixed-Point Arithmetic Instructions
#
-0.14,6.RT,11.RA,16.SI:D:T::Add Immediate
+0.14,6.RT,11.RA,16.SI:D:::Add Immediate
*601: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603e:PPC_UNIT_IU, PPC_UNIT_SRU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
if (RA_is_0) *rT = EXTS(SI);
else *rT = *rA + EXTS(SI);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rT, (long)*rT));
PPC_INSN_INT(RT_BITMASK, (RA_BITMASK & ~1), 0);
0.15,6.RT,11.RA,16.SI:D:::Add Immediate Shifted
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
if (RA_is_0) *rT = EXTS(SI) << 16;
else *rT = *rA + (EXTS(SI) << 16);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rT, (long)*rT));
PPC_INSN_INT(RT_BITMASK, (RA_BITMASK & ~1), 0);
0.31,6.RT,11.RA,16.RB,21.OE,22.266,31.Rc:XO:::Add
*603: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
-# ALU_BEGIN(*rA);
-# ALU_ADD_CA;
-# ALU_SUB(1);
-# ALU_END(*rT, 1/*CA*/, OE, Rc);
+ ALU_BEGIN(*rA);
+ ALU_ADD_CA;
+ ALU_ADD(-1);
+ ALU_END(*rT, 1/*CA*/, OE, Rc);
+ PPC_INSN_INT(RT_BITMASK, RA_BITMASK, Rc);
0.31,6.RT,11.RA,16./,21.OE,22.232,31.Rc:XO:::Subtract From Minus One Extended
*601: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
-# ALU_BEGIN(*rA);
-# ALU_NOT;
-# ALU_ADD_CA;
-# ALU_SUB(1);
-# ALU_END(*rT, 1/*CA*/, OE, Rc);
+ ALU_BEGIN(*rA);
+ ALU_NOT;
+ ALU_ADD_CA;
+ ALU_ADD(-1);
+ ALU_END(*rT, 1/*CA*/, OE, Rc);
+ PPC_INSN_INT(RT_BITMASK, RA_BITMASK, Rc);
0.31,6.RT,11.RA,16./,21.OE,22.202,31.Rc:XO::addze:Add to Zero Extended
*601: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
0.31,6.RT,11.RA,16.RB,21./,22.9,31.Rc:XO:64::Multiply High Doubleword Unsigned
-0.31,6.RT,11.RA,16.RB,21./,22.11,31.Rc:XO::milhwu:Multiply High Word Unsigned
+0.31,6.RT,11.RA,16.RB,21./,22.11,31.Rc:XO::mulhwu:Multiply High Word Unsigned
*601: PPC_UNIT_IU, PPC_UNIT_IU, 10, 10, 0
*603: PPC_UNIT_IU, PPC_UNIT_IU, 6, 6, 0
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 6, 6, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS & UI;
CR0_COMPARE(*rA, 0, 1/*Rc*/);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, 1/*Rc*/);
0.29,6.RS,11.RA,16.UI:D:::AND Immediate Shifted
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS & (UI << 16);
CR0_COMPARE(*rA, 0, 1/*Rc*/);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, 1/*Rc*/);
0.24,6.RS,11.RA,16.UI:D:::OR Immediate
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS | UI;
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, 0/*Rc*/);
0.25,6.RS,11.RA,16.UI:D:::OR Immediate Shifted
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS | (UI << 16);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, 0/*Rc*/);
0.26,6.RS,11.RA,16.UI:D:::XOR Immediate
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS ^ UI;
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, 0/*Rc*/);
0.27,6.RS,11.RA,16.UI:D:::XOR Immediate Shifted
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS ^ (UI << 16);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, 0/*Rc*/);
0.31,6.RS,11.RA,16.RB,21.28,31.Rc:X:::AND
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS & *rB;
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.444,31.Rc:X:::OR
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS | *rB;
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.316,31.Rc:X:::XOR
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS ^ *rB;
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.476,31.Rc:X:::NAND
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = ~(*rS & *rB);
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.124,31.Rc:X:::NOR
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = ~(*rS | *rB);
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.284,31.Rc:X:::Equivalent
*603: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
-# *rA = ~(*rS ^ *rB); /* A === B */
-# CR0_COMPARE(*rA, 0, Rc);
+ *rA = ~(*rS ^ *rB); /* A === B */
+ CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
+ PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.60,31.Rc:X:::AND with Complement
*601: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS & ~*rB;
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.412,31.Rc:X:::OR with Complement
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = *rS | ~*rB;
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK | RB_BITMASK, Rc);
0.31,6.RS,11.RA,16./,21.954,31.Rc:X::extsb:Extend Sign Byte
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = (signed_word)(signed8)*rS;
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, Rc);
0.31,6.RS,11.RA,16./,21.922,31.Rc:X::extsh:Extend Sign Half Word
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
*rA = (signed_word)(signed16)*rS;
CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, Rc);
0.31,6.RS,11.RA,16./,21.986,31.Rc:X:64::Extend Sign Word
count++;
}
*rA = count;
+ ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
CR0_COMPARE(count, 0, Rc); /* FIXME - is this correct */
# unsigned_word m = MASK(b, 63);
# signed_word result = r & m;
# *rA = result;
+# ITRACE(trace_alu, (" Result = %ld (0x%lx)\n", (long)*rA, (long)*rA));
# CR0_COMPARE(result, 0, Rc); /* FIXME - is this correct */
0.30,6.RS,11.RA,16.sh_0_4,21.me,27.1,30.sh_5,31.Rc:MD:64::Rotate Left Doubleword Immediate then Clear Right
# CR0_COMPARE(result, 0, Rc);
0.23,6.RS,11.RA,16.RB,21.MB,26.ME,31.Rc:M:::Rotate Left Word then AND with Mask
-# long n = MASKED(*rB, 59, 63);
-# unsigned32 r = ROTL32(*rS, n);
-# unsigned32 m = MASK(MB+32, ME+32);
-# signed_word result = r & m;
-# *rA = result;
-# CR0_COMPARE(result, 0, Rc);
+ long n = MASKED(*rB, 59, 63);
+ unsigned32 r = ROTL32(*rS, n);
+ unsigned32 m = MASK(MB+32, ME+32);
+ signed_word result = r & m;
+ *rA = result;
+ CR0_COMPARE(result, 0, Rc);
0.30,6.RS,11.RA,16.sh_0_4,21.mb,27.3,30.sh_5,31.Rc:MD:64::Rotate Left Doubleword Immediate then Mask Insert
# long n = (sh_5 << 4) | sh_0_4;
*603: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
- int n = MASKED(*rB, 59, 63);
+ int n = MASKED(*rB, 58, 63);
unsigned32 source = *rS;
signed_word shifted;
if (n < 32)
*603: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
- int n = MASKED(*rB, 59, 63);
+ int n = MASKED(*rB, 58, 63);
unsigned32 source = *rS;
signed_word shifted;
if (n < 32)
else
XER &= ~xer_carry;
CR0_COMPARE(shifted, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx), XER = %ld\n",
+ (long)*rA, (long)*rA, (long)XER));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, Rc);
0.31,6.RS,11.RA,16.RB,21.794,31.Rc:X:64::Shift Right Algebraic Doubleword
*603: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*603e:PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_SCIU1, PPC_UNIT_SCIU2, 1, 1, 0
- int n = MASKED(*rB, 58, 63);
- int shift = (n >= 31 ? 31 : n);
+ unsigned64 mask;
+ int n = MASKED(*rB, 59, 63);
signed32 source = (signed32)*rS; /* signed to keep sign bit */
- signed32 shifted = source >> shift;
- unsigned32 mask = ((unsigned32)-1) >> (31-shift);
- *rA = (signed_word)shifted; /* if 64bit will sign extend */
- if (source < 0 && (source & mask))
+ signed32 shifted = source >> n;
+ int S = (MASKED(*rS,32,32) != 0);
+ signed64 r = ((unsigned64) source);
+ r = ((unsigned64) source) << 32 | (unsigned32) source;
+ r = ROTL64(r,64-n);
+ if (MASKED(*rB,58,58) == 0)
+ mask = (unsigned64) MASK64(n+32,63);
+ else
+ mask = (unsigned64) 0;
+ *rA = (signed_word) (r & mask | ((signed64) -1*S) & ~mask); /* if 64bit will sign extend */
+ if (S && (MASKED(r & ~mask,32,63)!=0))
XER |= xer_carry;
else
XER &= ~xer_carry;
- CR0_COMPARE(shifted, 0, Rc);
+ CR0_COMPARE(*rA, 0, Rc);
+ ITRACE(trace_alu, (" Result = %ld (0x%lx), XER = %ld\n",
+ (long)*rA, (long)*rA, (long)XER));
PPC_INSN_INT(RA_BITMASK, RS_BITMASK, Rc);
#
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
else {
- /* HACK - some SPR's need to get their value extracted specially */
- *rT = SPREG(n);
+ /* HACK - time base registers need to be calculated */
+ if (WITH_TIME_BASE) {
+ switch (n) {
+ case spr_dec:
+ *rT = cpu_get_decrementer(processor);
+ break;
+ case spr_tbu:
+ case spr_tbl:
+ /* NOTE - these SPR's are not readable. Use mftb[ul] */
+ default:
+ *rT = SPREG(n);
+ break;
+ }
+ }
+ else {
+ *rT = SPREG(n);
+ }
}
PPC_INSN_FROM_SPR(RT_BITMASK, n);
PPC_INSN_MTCR(RS_BITMASK, FXM);
0.31,6.BF,9./,11./,16./,21.512,31./:X:::Move to Condition Register from XER
+# CR_SET(BF, EXTRACTED32(XER, 0, 3));
+# MBLIT32(XER, 0, 3, 0);
0.31,6.RT,11./,16./,21.19,31./:X:::Move From Condition Register
*601: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
*frT = DOUBLE(MEM(unsigned, EA, 4));
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*frT = DOUBLE(MEM(unsigned, EA, 4));
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*rA = EA;
PPC_INSN_INT_FLOAT(RA_BITMASK, FRT_BITMASK, (RA_BITMASK & ~1), 0);
-0.31,6.FRT,11.RA,16.RB,21.576,31./:X:f::Load Floating-Point Single with Update Indexed
+0.31,6.FRT,11.RA,16.RB,21.567,31./:X:f::Load Floating-Point Single with Update Indexed
*601: PPC_UNIT_IU, PPC_UNIT_IU, 3, 3, 0
*603: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
*frT = MEM(unsigned, EA, 8);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
*frT = MEM(unsigned, EA, 8);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
STORE(EA, 4, SINGLE(*frS));
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
STORE(EA, 4, SINGLE(*frS));
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + EXTS(D);
STORE(EA, 8, *frS);
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word b;
unsigned_word EA;
- if (RA == 0) b = 0;
+ if (RA_is_0) b = 0;
else b = *rA;
EA = b + *rB;
STORE(EA, 8, *frS);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + EXTS(D);
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 2, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
unsigned_word EA;
- if (RA == 0)
+ if (RA_is_0)
program_interrupt(processor, cia,
illegal_instruction_program_interrupt);
EA = *rA + *rB;
0, /*instruction_is_convert_to_32bit*/
0); /*single-precision*/
}
+ else if (is_invalid_zero_divide (processor, cia,
+ *frA, *frB,
+ 0 /*single?*/)) {
+ invalid_zero_divide_operation (processor, cia,
+ frT, *frA, *frB,
+ 0 /*single?*/);
+ }
else {
/*HACK!*/
double s = *(double*)frA / *(double*)frB;
0, /*instruction_is_convert_to_32bit*/
1); /*single-precision*/
}
+ else if (is_invalid_zero_divide (processor, cia,
+ *frA, *frB,
+ 1 /*single?*/)) {
+ invalid_zero_divide_operation (processor, cia,
+ frT, *frA, *frB,
+ 1 /*single?*/);
+ }
else {
/*HACK!*/
float s = *(double*)frA / *(double*)frB;
int sign;
int exp;
unsigned64 frac_grx;
- /* split off cases for what to do */
- if (EXTRACTED64(*frB, 1, 11) < 897
- && EXTRACTED64(*frB, 1, 63) > 0) {
- if ((FPSCR & fpscr_ue) == 0) goto Disabled_Exponent_Underflow;
- if ((FPSCR & fpscr_ue) != 0) goto Enabled_Exponent_Underflow;
- }
- if (EXTRACTED64(*frB, 1, 11) > 1150
- && EXTRACTED64(*frB, 1, 11) < 2047) {
- if ((FPSCR & fpscr_oe) == 0) goto Disabled_Exponent_Overflow;
- if ((FPSCR & fpscr_oe) != 0) goto Enabled_Exponent_Overflow;
- }
- if (EXTRACTED64(*frB, 1, 11) > 896
- && EXTRACTED64(*frB, 1, 11) < 1151) goto Normal_Operand;
- if (EXTRACTED64(*frB, 1, 63) == 0) goto Zero_Operand;
- if (EXTRACTED64(*frB, 1, 11) == 2047) {
- if (EXTRACTED64(*frB, 12, 63) == 0) goto Infinity_Operand;
- if (EXTRACTED64(*frB, 12, 12) == 1) goto QNaN_Operand;
- if (EXTRACTED64(*frB, 12, 12) == 0
- && EXTRACTED64(*frB, 13, 63) > 0) goto SNaN_Operand;
- }
- /* handle them */
- Disabled_Exponent_Underflow:
+ /***/
+ /* split off cases for what to do */
+ if (EXTRACTED64(*frB, 1, 11) < 897
+ && EXTRACTED64(*frB, 1, 63) > 0) {
+ if ((FPSCR & fpscr_ue) == 0) GOTO(Disabled_Exponent_Underflow);
+ if ((FPSCR & fpscr_ue) != 0) GOTO(Enabled_Exponent_Underflow);
+ }
+ if (EXTRACTED64(*frB, 1, 11) > 1150
+ && EXTRACTED64(*frB, 1, 11) < 2047) {
+ if ((FPSCR & fpscr_oe) == 0) GOTO(Disabled_Exponent_Overflow);
+ if ((FPSCR & fpscr_oe) != 0) GOTO(Enabled_Exponent_Overflow);
+ }
+ if (EXTRACTED64(*frB, 1, 11) > 896
+ && EXTRACTED64(*frB, 1, 11) < 1151) GOTO(Normal_Operand);
+ if (EXTRACTED64(*frB, 1, 63) == 0) GOTO(Zero_Operand);
+ if (EXTRACTED64(*frB, 1, 11) == 2047) {
+ if (EXTRACTED64(*frB, 12, 63) == 0) GOTO(Infinity_Operand);
+ if (EXTRACTED64(*frB, 12, 12) == 1) GOTO(QNaN_Operand);
+ if (EXTRACTED64(*frB, 12, 12) == 0
+ && EXTRACTED64(*frB, 13, 63) > 0) GOTO(SNaN_Operand);
+ }
+ /**/
+ LABEL(Disabled_Exponent_Underflow):
sign = EXTRACTED64(*frB, 0, 0);
if (EXTRACTED64(*frB, 1, 11) == 0) {
exp = -1022;
}
/* G|R|X == zero from above */
while (exp < -126) {
- exp = exp - 1;
+ exp = exp + 1;
frac_grx = (INSERTED64(EXTRACTED64(frac_grx, 0, 54), 1, 55)
| MASKED64(frac_grx, 55, 55));
}
| INSERTED64(exp + 1023, 1, 11)
| INSERTED64(EXTRACTED64(frac_grx, 1, 52), 12, 63));
}
- goto Done;
- Enabled_Exponent_Underflow:
+ GOTO(Done);
+ /**/
+ LABEL(Enabled_Exponent_Underflow):
FPSCR_SET_UX(1);
sign = EXTRACTED64(*frB, 0, 0);
if (EXTRACTED64(*frB, 1, 11) == 0) {
| INSERTED64(EXTRACTED64(frac_grx, 1, 52), 12, 63));
if (sign == 0) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
if (sign == 1) FPSCR_SET_FPRF(fpscr_rf_neg_normal_number);
- goto Done;
- Disabled_Exponent_Overflow:
+ GOTO(Done);
+ /**/
+ LABEL(Disabled_Exponent_Overflow):
FPSCR_SET_OX(1);
if ((FPSCR & fpscr_rn) == fpscr_rn_round_to_nearest) {
if (EXTRACTED64(*frB, 0, 0) == 0) {
/* FPSCR[FR] <- undefined */
FPSCR_SET_FI(1);
FPSCR_SET_XX(1);
- goto Done;
- Enabled_Exponent_Overflow:
+ GOTO(Done);
+ /**/
+ LABEL(Enabled_Exponent_Overflow):
sign = EXTRACTED64(*frB, 0, 0);
exp = EXTRACTED64(*frB, 1, 11) - 1023;
frac_grx = BIT64(0) | INSERTED64(EXTRACTED64(*frB, 12, 63), 1, 52);
Round_Single(processor, sign, &exp, &frac_grx);
FPSCR_SET_XX(FPSCR & fpscr_fi);
- Enabled_Overflow:
- FPSCR_SET_OX(1);
- exp = exp - 192;
- *frT = (INSERTED64(sign, 0, 0)
- | INSERTED64(exp + 1023, 1, 11)
- | INSERTED64(EXTRACTED64(frac_grx, 1, 52), 12, 63));
- if (sign == 0) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
- if (sign == 1) FPSCR_SET_FPRF(fpscr_rf_neg_normal_number);
- goto Done;
- Zero_Operand:
+ /**/
+ LABEL(Enabled_Overflow):
+ FPSCR_SET_OX(1);
+ exp = exp - 192;
+ *frT = (INSERTED64(sign, 0, 0)
+ | INSERTED64(exp + 1023, 1, 11)
+ | INSERTED64(EXTRACTED64(frac_grx, 1, 52), 12, 63));
+ if (sign == 0) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
+ if (sign == 1) FPSCR_SET_FPRF(fpscr_rf_neg_normal_number);
+ GOTO(Done);
+ /**/
+ LABEL(Zero_Operand):
*frT = *frB;
if (EXTRACTED64(*frB, 0, 0) == 0) FPSCR_SET_FPRF(fpscr_rf_pos_zero);
if (EXTRACTED64(*frB, 0, 0) == 1) FPSCR_SET_FPRF(fpscr_rf_neg_zero);
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
- goto Done;
- Infinity_Operand:
+ GOTO(Done);
+ /**/
+ LABEL(Infinity_Operand):
*frT = *frB;
if (EXTRACTED64(*frB, 0, 0) == 0) FPSCR_SET_FPRF(fpscr_rf_pos_infinity);
if (EXTRACTED64(*frB, 0, 0) == 1) FPSCR_SET_FPRF(fpscr_rf_neg_infinity);
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
- goto Done;
- QNaN_Operand:
+ GOTO(Done);
+ /**/
+ LABEL(QNaN_Operand):
*frT = INSERTED64(EXTRACTED64(*frB, 0, 34), 0, 34);
FPSCR_SET_FPRF(fpscr_rf_quiet_nan);
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
- goto Done;
- SNaN_Operand:
+ GOTO(Done);
+ /**/
+ LABEL(SNaN_Operand):
FPSCR_OR_VX(fpscr_vxsnan);
if ((FPSCR & fpscr_ve) == 0) {
*frT = (MASKED64(*frB, 0, 11)
}
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
- goto Done;
- Normal_Operand:
+ GOTO(Done);
+ /**/
+ LABEL(Normal_Operand):
sign = EXTRACTED64(*frB, 0, 0);
exp = EXTRACTED64(*frB, 1, 11) - 1023;
frac_grx = BIT64(0) | INSERTED64(EXTRACTED64(*frB, 12, 63), 1, 52);
Round_Single(processor, sign, &exp, &frac_grx);
FPSCR_SET_XX(FPSCR & fpscr_fi);
- if (exp > 127 && (FPSCR & fpscr_oe) == 0) goto Disabled_Exponent_Overflow;
- if (exp > 127 && (FPSCR & fpscr_oe) != 0) goto Enabled_Overflow;
+ if (exp > 127 && (FPSCR & fpscr_oe) == 0) GOTO(Disabled_Exponent_Overflow);
+ if (exp > 127 && (FPSCR & fpscr_oe) != 0) GOTO(Enabled_Overflow);
*frT = (INSERTED64(sign, 0, 0)
| INSERTED64(exp + 1023, 1, 11)
| INSERTED64(EXTRACTED64(frac_grx, 1, 52), 12, 63));
if (sign == 0) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
if (sign == 1) FPSCR_SET_FPRF(fpscr_rf_neg_normal_number);
- goto Done;
- Done:
- PPC_INSN_FLOAT(FRT_BITMASK, FRB_BITMASK, Rc);
+ GOTO(Done);
+ /**/
+ LABEL(Done):
+ PPC_INSN_FLOAT(FRT_BITMASK, FRB_BITMASK, Rc);
+
0.63,6.FRT,11./,16.FRB,21.814,31.Rc:X:64,f::Floating Convert To Integer Doubleword
+ floating_point_assist_interrupt(processor, cia);
0.63,6.FRT,11./,16.FRB,21.815,31.Rc:X:64,f::Floating Convert To Integer Doubleword with round towards Zero
+ floating_point_assist_interrupt(processor, cia);
0.63,6.FRT,11./,16.FRB,21.14,31.Rc:X:f::Floating Convert To Integer Word
+ floating_point_assist_interrupt(processor, cia);
0.63,6.FRT,11./,16.FRB,21.15,31.Rc:X:f:fctiwz:Floating Convert To Integer Word with round towards Zero
*601: PPC_UNIT_FPU, PPC_UNIT_FPU, 4, 4, 0
int sign = EXTRACTED64(*frB, 0, 0);
int exp = 63;
unsigned64 frac = *frB;
- if (frac == 0) goto Zero_Operand;
- if (sign == 1) frac = ~frac + 1;
- while (EXTRACTED64(frac, 0, 0) == 0) {
- /*??? do the loop 0 times if (FRB) = max negative integer */
- frac = INSERTED64(EXTRACTED64(frac, 1, 63), 0, 62);
- exp = exp - 1;
- }
- Round_Float(processor, sign, &exp, &frac, FPSCR & fpscr_rn);
- if (sign == 0) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
- if (sign == 1) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
- *frT = (INSERTED64(sign, 0, 0)
- | INSERTED64(exp + 1023, 1, 11)
- | INSERTED64(EXTRACTED64(frac, 1, 52), 12, 63));
- goto Done;
+ /***/
+ if (frac == 0) GOTO(Zero_Operand);
+ if (sign == 1) frac = ~frac + 1;
+ while (EXTRACTED64(frac, 0, 0) == 0) {
+ /*??? do the loop 0 times if (FRB) = max negative integer */
+ frac = INSERTED64(EXTRACTED64(frac, 1, 63), 0, 62);
+ exp = exp - 1;
+ }
+ Round_Float(processor, sign, &exp, &frac, FPSCR & fpscr_rn);
+ if (sign == 0) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
+ if (sign == 1) FPSCR_SET_FPRF(fpscr_rf_pos_normal_number);
+ *frT = (INSERTED64(sign, 0, 0)
+ | INSERTED64(exp + 1023, 1, 11)
+ | INSERTED64(EXTRACTED64(frac, 1, 52), 12, 63));
+ GOTO(Done);
/**/
- Zero_Operand:
+ LABEL(Zero_Operand):
FPSCR_SET_FR(0);
FPSCR_SET_FI(0);
FPSCR_SET_FPRF(fpscr_rf_pos_zero);
*frT = 0;
- goto Done;
+ GOTO(Done);
/**/
- Done:
- PPC_INSN_FLOAT(FRT_BITMASK, FRB_BITMASK, Rc);
+ LABEL(Done):
+ PPC_INSN_FLOAT(FRT_BITMASK, FRB_BITMASK, Rc);
+
#
# I.4.6.7 Floating-Point Compare Instructions
#
0.63,6.FRT,11./,16./,21.583,31.Rc:X:f::Move From FPSCR
+ FPSCR_BEGIN;
+ *frT = FPSCR;
+ FPSCR_END(Rc);
0.63,6.BF,9./,11.BFA,14./,16./,21.64,31./:X:f::Move to Condition Register from FPSCR
+ FPSCR_BEGIN;
+ unsigned field = FPSCR_FIELD(BFA);
+ CR_SET(BF, field);
+ FPSCR_SET(BFA, 0); /* FPSCR_END fixes up FEX/VX */
+ FPSCR_END(0);
0.64,6.BF,9./,11./,16.U,20./,21.134,31.Rc:X:f::Move To FPSCR Field Immediate
+ FPSCR_BEGIN;
+ FPSCR_SET(BF, U);
+ FPSCR_END(Rc);
0.63,6./,7.FLM,15./,16.FRB,21.711,31.Rc:XFL:f::Move To FPSCR Fields
+ FPSCR_BEGIN;
+ int i;
+ for (i = 0; i < 8; i++) {
+ if ((FLM & BIT8(i))) {
+ FPSCR &= ~MASK32(i*4, i*4+3);
+ FPSCR |= MASKED32(*frB, i*4, i*4+3);
+ }
+ }
+ FPSCR_END(Rc);
0.63,6.BT,11./,16./,21.70,31.Rc:X:f::Move To FPSCR Bit 0
+ FPSCR_BEGIN;
+ unsigned32 bit = BIT32(BT);
+ FPSCR &= ~bit;
+ FPSCR_END(Rc);
0.63,6.BT,11./,16./,21.38,31.Rc:X:f::Move To FPSCR Bit 1
+ FPSCR_BEGIN;
+ unsigned32 bit = BIT32(BT);
+ if (bit & fpscr_fi)
+ bit |= fpscr_xx;
+ if ((bit & fpscr_vx_bits))
+ bit |= fpscr_fx;
+ /* note - omit vx bit */
+ if ((bit & (fpscr_ox | fpscr_ux | fpscr_zx | fpscr_xx)))
+ bit |= fpscr_fx;
+ FPSCR |= bit;
+ FPSCR_END(Rc);
#
# I.A.1.1 Floating-Point Store Instruction
#
-0.31,6.FRS,11.RA,16.RB,21.983,31./:X:f::Store Floating-Point as Integer Word Indexed
+0.31,6.FRS,11.RA,16.RB,21.983,31./:X:f,o::Store Floating-Point as Integer Word Indexed
+ program_interrupt(processor, cia, optional_instruction_program_interrupt);
#
# I.A.1.2 Floating-Point Arithmetic Instructions
#
-0.63,6.FRT,11./,16.FRB,21./,26.22,31.Rc:A:f::Floating Square Root
+0.63,6.FRT,11./,16.FRB,21./,26.22,31.Rc:A:f,o::Floating Square Root
+ program_interrupt(processor, cia, optional_instruction_program_interrupt);
-0.59,6.FRT,11./,16.FRB,21./,26.22,31.Rc:A:f::Floating Square Root Single
+0.59,6.FRT,11./,16.FRB,21./,26.22,31.Rc:A:f,o::Floating Square Root Single
+ program_interrupt(processor, cia, optional_instruction_program_interrupt);
-0.59,6.FRT,11./,16.FRB,21./,26.24,31.Rc:A:f::Floating Reciprocal Estimate Single
+0.59,6.FRT,11./,16.FRB,21./,26.24,31.Rc:A:f,o::Floating Reciprocal Estimate Single
+ program_interrupt(processor, cia, optional_instruction_program_interrupt);
-0.63,6.FRT,11./,16.FRB,21./,26.26,31.Rc:A:f::Floating Reciprocal Square Root Estimate
+0.63,6.FRT,11./,16.FRB,21./,26.26,31.Rc:A:f,o::Floating Reciprocal Square Root Estimate
+ program_interrupt(processor, cia, optional_instruction_program_interrupt);
#
# I.A.1.3 Floating-Point Select Instruction
#
-0.63,6.FRT,11.FRA,16.FRB,21.FRC,26.23,31.Rc:A:f::Floating Select
-
+0.63,6.FRT,11.FRA,16.FRB,21.FRC,26.23,31.Rc:A:f,o::Floating Select
+*601: PPC_UNIT_BAD, PPC_UNIT_BAD, 0, 0, 0
+*603: PPC_UNIT_FPU, PPC_UNIT_FPU, 1, 3, 0
+*603e:PPC_UNIT_FPU, PPC_UNIT_FPU, 1, 3, 0
+*604: PPC_UNIT_FPU, PPC_UNIT_FPU, 1, 3, 0
+ if (CURRENT_MODEL == MODEL_ppc601) {
+ program_interrupt(processor, cia, optional_instruction_program_interrupt);
+ } else {
+ unsigned64 zero = 0;
+ FPSCR_BEGIN;
+ if (is_NaN(*frA, 0) || is_less_than (frA, &zero)) *frT = *frB;
+ else *frT = *frC;
+ FPSCR_END(Rc);
+ PPC_INSN_FLOAT(FRT_BITMASK, FRA_BITMASK | FRB_BITMASK | FRC_BITMASK, Rc);
+ }
#
# II.3.2 Cache Management Instructions
*603: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
*603e:PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 3, 0
*604: PPC_UNIT_LSU, PPC_UNIT_LSU, 1, 1, 0
- cpu_synchronize_context(processor);
+ cpu_synchronize_context(processor, cia);
PPC_INSN_INT(0, 0, 0);
| MASKED(SRR1, 37, 41)
| MASKED(SRR1, 48, 63));
NIA = MASKED(SRR0, 0, 61);
- cpu_synchronize_context(processor);
+ cpu_synchronize_context(processor, cia);
+ check_masked_interrupts(processor);
}
#
if (IS_PROBLEM_STATE(processor))
program_interrupt(processor, cia,
privileged_instruction_program_interrupt);
- else
+ else {
MSR = *rS;
+ check_masked_interrupts(processor);
+ }
0.31,6.RT,11./,16./,21.83,31./:X:::Move From Machine State Register
*601: PPC_UNIT_IU, PPC_UNIT_IU, 1, 1, 0
if (IS_PROBLEM_STATE(processor))
program_interrupt(processor, cia,
privileged_instruction_program_interrupt);
- else
+ else {
*rT = MSR;
+ check_masked_interrupts(processor);
+ }
#
0.31,6./,11./,16./,21.498,31./:X:64::SLB Invalidate All
0.31,6./,11./,16.RB,21.306,31./:X:::TLB Invalidate Entry
+ if (IS_PROBLEM_STATE(processor))
+ program_interrupt(processor, cia,
+ privileged_instruction_program_interrupt);
+ else {
+ int nr = 0;
+ cpu *proc;
+ while (1) {
+ proc = psim_cpu(cpu_system(processor), nr);
+ if (proc == NULL) break;
+ cpu_page_tlb_invalidate_entry(proc, *rB);
+ nr++;
+ }
+ }
0.31,6./,11./,16./,21.370,31./:X:::TLB Invalidate All
+ if (IS_PROBLEM_STATE(processor))
+ program_interrupt(processor, cia,
+ privileged_instruction_program_interrupt);
+ else {
+ int nr = 0;
+ cpu *proc;
+ while (1) {
+ proc = psim_cpu(cpu_system(processor), nr);
+ if (proc == NULL) break;
+ cpu_page_tlb_invalidate_all(proc);
+ nr++;
+ }
+ }
-0.31,6./,11./,16./,21.566,31./:X:::TLB Sychronize
-
+0.31,6./,11./,16./,21.566,31./:X:::TLB Synchronize
+ /* nothing happens here - always in sync */
#
# III.A.1.2 External Access Instructions
projects / deliverable / binutils-gdb.git / blobdiff