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Diffstat (limited to 'sim/m68hc11/m68hc11_sim.c')
-rw-r--r--sim/m68hc11/m68hc11_sim.c206
1 files changed, 0 insertions, 206 deletions
diff --git a/sim/m68hc11/m68hc11_sim.c b/sim/m68hc11/m68hc11_sim.c
index 40dda42..7cf5e08 100644
--- a/sim/m68hc11/m68hc11_sim.c
+++ b/sim/m68hc11/m68hc11_sim.c
@@ -23,8 +23,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
#include "sim-module.h"
#include "sim-options.h"
-void cpu_free_frame (sim_cpu* cpu, struct cpu_frame *frame);
-
enum {
OPTION_CPU_RESET = OPTION_START,
OPTION_EMUL_OS,
@@ -88,213 +86,17 @@ cpu_option_handler (SIM_DESC sd, sim_cpu *cpu,
return SIM_RC_OK;
}
-/* Tentative to keep track of the cpu frame. */
-struct cpu_frame*
-cpu_find_frame (sim_cpu *cpu, uint16 sp)
-{
- struct cpu_frame_list *flist;
-
- flist = cpu->cpu_frames;
- while (flist)
- {
- struct cpu_frame *frame;
-
- frame = flist->frame;
- while (frame)
- {
- if (frame->sp_low <= sp && frame->sp_high >= sp)
- {
- cpu->cpu_current_frame = flist;
- return frame;
- }
-
- frame = frame->up;
- }
- flist = flist->next;
- }
- return 0;
-}
-
-struct cpu_frame_list*
-cpu_create_frame_list (sim_cpu *cpu)
-{
- struct cpu_frame_list *flist;
-
- flist = (struct cpu_frame_list*) malloc (sizeof (struct cpu_frame_list));
- flist->frame = 0;
- flist->next = cpu->cpu_frames;
- flist->prev = 0;
- if (flist->next)
- flist->next->prev = flist;
- cpu->cpu_frames = flist;
- cpu->cpu_current_frame = flist;
- return flist;
-}
-
-void
-cpu_remove_frame_list (sim_cpu *cpu, struct cpu_frame_list *flist)
-{
- struct cpu_frame *frame;
-
- if (flist->prev == 0)
- cpu->cpu_frames = flist->next;
- else
- flist->prev->next = flist->next;
- if (flist->next)
- flist->next->prev = flist->prev;
-
- frame = flist->frame;
- while (frame)
- {
- struct cpu_frame* up = frame->up;
- cpu_free_frame (cpu, frame);
- frame = up;
- }
- free (flist);
-}
-
-struct cpu_frame*
-cpu_create_frame (sim_cpu *cpu, uint16 pc, uint16 sp)
-{
- struct cpu_frame *frame;
-
- frame = (struct cpu_frame*) malloc (sizeof(struct cpu_frame));
- frame->up = 0;
- frame->pc = pc;
- frame->sp_low = sp;
- frame->sp_high = sp;
- return frame;
-}
-
-void
-cpu_free_frame (sim_cpu *cpu, struct cpu_frame *frame)
-{
- free (frame);
-}
-
-uint16
-cpu_frame_reg (sim_cpu *cpu, uint16 rn)
-{
- struct cpu_frame *frame;
-
- if (cpu->cpu_current_frame == 0)
- return 0;
-
- frame = cpu->cpu_current_frame->frame;
- while (frame)
- {
- if (rn == 0)
- return frame->sp_high;
- frame = frame->up;
- rn--;
- }
- return 0;
-}
-
void
cpu_call (sim_cpu *cpu, uint16 addr)
{
-#if HAVE_FRAME
- uint16 pc = cpu->cpu_insn_pc;
- uint16 sp;
- struct cpu_frame_list *flist;
- struct cpu_frame* frame;
- struct cpu_frame* new_frame;
-#endif
cpu_set_pc (cpu, addr);
-#if HAVE_FRAME
- sp = cpu_get_sp (cpu);
-
- cpu->cpu_need_update_frame = 0;
- flist = cpu->cpu_current_frame;
- if (flist == 0)
- flist = cpu_create_frame_list (cpu);
-
- frame = flist->frame;
- if (frame && frame->sp_low > sp)
- frame->sp_low = sp;
-
- new_frame = cpu_create_frame (cpu, pc, sp);
- new_frame->up = frame;
- flist->frame = new_frame;
-#endif
-}
-
-void
-cpu_update_frame (sim_cpu *cpu, int do_create)
-{
-#if HAVE_FRAME
- struct cpu_frame *frame;
-
- frame = cpu_find_frame (cpu, cpu_get_sp (cpu));
- if (frame)
- {
- while (frame != cpu->cpu_current_frame->frame)
- {
- struct cpu_frame* up;
-
- up = cpu->cpu_current_frame->frame->up;
- cpu_free_frame (cpu, cpu->cpu_current_frame->frame);
- cpu->cpu_current_frame->frame = up;
- }
- return;
- }
-
- if (do_create)
- {
- cpu_create_frame_list (cpu);
- frame = cpu_create_frame (cpu, cpu_get_pc (cpu), cpu_get_sp (cpu));
- cpu->cpu_current_frame->frame = frame;
- }
-#endif
}
void
cpu_return (sim_cpu *cpu)
{
-#if HAVE_FRAME
- uint16 sp = cpu_get_sp (cpu);
- struct cpu_frame *frame;
- struct cpu_frame_list *flist;
-
- cpu->cpu_need_update_frame = 0;
- flist = cpu->cpu_current_frame;
- if (flist && flist->frame && flist->frame->up)
- {
- frame = flist->frame->up;
- if (frame->sp_low <= sp && frame->sp_high >= sp)
- {
- cpu_free_frame (cpu, flist->frame);
- flist->frame = frame;
- return;
- }
- }
- cpu_update_frame (cpu, 1);
-#endif
-}
-
-void
-cpu_print_frame (SIM_DESC sd, sim_cpu *cpu)
-{
- struct cpu_frame* frame;
- int level = 0;
-
- if (cpu->cpu_current_frame == 0 || cpu->cpu_current_frame->frame == 0)
- {
- sim_io_printf (sd, "No frame.\n");
- return;
- }
- sim_io_printf (sd, " # PC SP-L SP-H\n");
- frame = cpu->cpu_current_frame->frame;
- while (frame)
- {
- sim_io_printf (sd, "%3d 0x%04x 0x%04x 0x%04x\n",
- level, frame->pc, frame->sp_low, frame->sp_high);
- frame = frame->up;
- level++;
- }
}
/* Set the stack pointer and re-compute the current frame. */
@@ -302,7 +104,6 @@ void
cpu_set_sp (sim_cpu *cpu, uint16 val)
{
cpu->cpu_regs.sp = val;
- cpu_update_frame (cpu, 0);
}
uint16
@@ -653,8 +454,6 @@ cpu_initialize (SIM_DESC sd, sim_cpu *cpu)
cpu->cpu_running = 1;
cpu->cpu_stop_on_interrupt = 0;
cpu->cpu_frequency = 8 * 1000 * 1000;
- cpu->cpu_frames = 0;
- cpu->cpu_current_frame = 0;
cpu->cpu_use_elf_start = 0;
cpu->cpu_elf_start = 0;
cpu->cpu_use_local_config = 0;
@@ -671,11 +470,6 @@ cpu_initialize (SIM_DESC sd, sim_cpu *cpu)
int
cpu_reset (sim_cpu *cpu)
{
- cpu->cpu_need_update_frame = 0;
- cpu->cpu_current_frame = 0;
- while (cpu->cpu_frames)
- cpu_remove_frame_list (cpu, cpu->cpu_frames);
-
/* Initialize the config register.
It is only initialized at reset time. */
memset (cpu->ios, 0, sizeof (cpu->ios));
generated by cgit v1.1 at 2025-01-25 10:25:58 +0000