RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 15:27:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

sh2 drc host disassembler integration for gp2x

Browse source
This commit is contained in:
kub 2019-03-20 21:12:10 +01:00
parent 5a5d765c23
commit f5939109c4
6 changed files with 26 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

12
platform/common/common.mak
View file

@ -161,8 +161,16 @@ SRCS_COMMON += $(R)cpu/sh2/compiler.c
ifdef drc_debug
DEFINES += DRC_DEBUG=$(drc_debug)
SRCS_COMMON += $(R)cpu/sh2/mame/sh2dasm.c
SRCS_COMMON += $(R)platform/libpicofe/linux/host_dasm.c
LDFLAGS += -lbfd -lopcodes -liberty
DASM = $(R)platform/libpicofe/linux/host_dasm.c
DASMLIBS = -lbfd -lopcodes -liberty
ifeq "$(ARCH)" "arm"
ifeq ($(filter_out $(shell $(CC) --print-file-name=libbfd.so),"/"),)
DASM = $(R)platform/common/host_dasm_arm.c
DASMLIBS =
endif
endif
SRCS_COMMON += $(DASM)
LDFLAGS += $(DASMLIBS)
endif
endif # use_sh2drc
SRCS_COMMON += $(R)cpu/sh2/mame/sh2pico.c

85
platform/common/host_dasm_arm.c Normal file
View file

@ -0,0 +1,85 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "disarm.c"
/* symbols */
typedef struct { const char *name; void *value; } asymbol;
static asymbol **symbols;
static long symcount, symstorage = 8;
static const char *lookup_name(void *addr)
{
asymbol **sptr = symbols;
int i;
for (i = 0; i < symcount; i++) {
asymbol *sym = *sptr++;
if (addr == sym->value)
return sym->name;
}
return NULL;
}
void host_dasm(void *addr, int len)
{
void *end = (char *)addr + len;
const char *name;
char buf[64];
long insn, symaddr;
while (addr < end) {
name = lookup_name(addr);
if (name != NULL)
printf("%s:\n", name);
insn = *(long *)addr;
printf(" %08lx %08lx ", (long)addr, insn);
if(disarm((unsigned)addr, insn, buf, sizeof(buf))) {
symaddr = 0;
if ((insn & 0xe000000) == 0xa000000) {
symaddr = (long)addr + 8 + ((long)(insn << 8) >> 6);
name = lookup_name((void *)symaddr);
}
if (symaddr && name)
printf("%s <%s>\n", buf, name);
else if (symaddr && !name)
printf("%s <unknown>\n", buf);
else
printf("%s\n", buf);
} else
printf("unknown\n");
addr = (char *)addr + sizeof(long);
}
}
void host_dasm_new_symbol_(void *addr, const char *name)
{
asymbol *sym, **tmp;
if (symbols == NULL)
symbols = malloc(symstorage);
if (symstorage <= symcount * sizeof(symbols[0])) {
tmp = realloc(symbols, symstorage * 2);
if (tmp == NULL)
return;
symstorage *= 2;
symbols = tmp;
}
symbols[symcount] = calloc(sizeof(*symbols[0]), 1);
if (symbols[symcount] == NULL)
return;
// a HACK (should use correct section), but ohwell
sym = symbols[symcount];
sym->value = addr;
sym->name = name;
symcount++;
}