@@ -137,6 +137,8 @@ typedef struct CPUM68KState {
uint32_t mbar;
uint32_t rambar0;
uint32_t cacr;
+ uint32_t sfc;
+ uint32_t dfc;
int pending_vector;
int pending_level;
@@ -21,6 +21,7 @@
#include "qemu/osdep.h"
#include "cpu.h"
#include "exec/exec-all.h"
+#include "exec/cpu_ldst.h"
#include "exec/gdbstub.h"
#include "exec/helper-proto.h"
@@ -203,6 +204,12 @@ void HELPER(m68k_movec_to)(CPUM68KState *env, uint32_t reg, uint32_t val)
switch (reg) {
/* MC680[1234]0 */
+ case M68K_CR_SFC:
+ env->sfc = val & 7;
+ return;
+ case M68K_CR_DFC:
+ env->dfc = val & 7;
+ return;
case M68K_CR_VBR:
env->vbr = val;
return;
@@ -254,6 +261,10 @@ uint32_t HELPER(m68k_movec_from)(CPUM68KState *env, uint32_t reg)
switch (reg) {
/* MC680[1234]0 */
+ case M68K_CR_SFC:
+ return env->sfc;
+ case M68K_CR_DFC:
+ return env->dfc;
case M68K_CR_VBR:
return env->vbr;
/* MC680[234]0 */
@@ -1066,6 +1077,77 @@ void HELPER(set_mac_extu)(CPUM68KState *env, uint32_t val, uint32_t acc)
}
#if defined(CONFIG_SOFTMMU)
+void HELPER(moves_store)(CPUM68KState *env, uint32_t val,
+ uint32_t addr, uint32_t size)
+{
+ if (env->dfc & 4) { /* kernel */
+ switch (size) {
+ case OS_BYTE:
+ cpu_stb_kernel_ra(env, addr, val, GETPC());
+ break;
+ case OS_WORD:
+ cpu_stw_kernel_ra(env, addr, val, GETPC());
+ break;
+ case OS_LONG:
+ cpu_stl_kernel_ra(env, addr, val, GETPC());
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ } else { /* user */
+ switch (size) {
+ case OS_BYTE:
+ cpu_stb_user_ra(env, addr, val, GETPC());
+ break;
+ case OS_WORD:
+ cpu_stw_user_ra(env, addr, val, GETPC());
+ break;
+ case OS_LONG:
+ cpu_stl_user_ra(env, addr, val, GETPC());
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ }
+}
+
+uint32_t HELPER(moves_load)(CPUM68KState *env, uint32_t addr, uint32_t size)
+{
+ uint32_t val;
+
+ if (env->sfc & 4) { /* kernel */
+ switch (size) {
+ case OS_BYTE:
+ val = cpu_ldub_kernel_ra(env, addr, GETPC());
+ break;
+ case OS_WORD:
+ val = cpu_lduw_kernel_ra(env, addr, GETPC());
+ break;
+ case OS_LONG:
+ val = cpu_ldl_kernel_ra(env, addr, GETPC());
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ } else { /* user */
+ switch (size) {
+ case OS_BYTE:
+ val = cpu_ldub_user_ra(env, addr, GETPC());
+ break;
+ case OS_WORD:
+ val = cpu_lduw_user_ra(env, addr, GETPC());
+ break;
+ case OS_LONG:
+ val = cpu_ldl_user_ra(env, addr, GETPC());
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ }
+
+ return val;
+}
+
void HELPER(reset)(CPUM68KState *env)
{
/* FIXME: reset all except CPU */
@@ -101,5 +101,7 @@ DEF_HELPER_3(chk, void, env, s32, s32)
DEF_HELPER_4(chk2, void, env, s32, s32, s32)
#if defined(CONFIG_SOFTMMU)
+DEF_HELPER_FLAGS_4(moves_store, TCG_CALL_NO_WG, void, env, i32, i32, i32)
+DEF_HELPER_FLAGS_3(moves_load, TCG_CALL_NO_WG, i32, env, i32, i32)
DEF_HELPER_FLAGS_1(reset, TCG_CALL_NO_RWG, void, env)
#endif
@@ -31,6 +31,8 @@ static const MonitorDef monitor_defs[] = {
{ "ssp", offsetof(CPUM68KState, sp[0]) },
{ "usp", offsetof(CPUM68KState, sp[1]) },
{ "isp", offsetof(CPUM68KState, sp[2]) },
+ { "sfc", offsetof(CPUM68KState, sfc) },
+ { "dfc", offsetof(CPUM68KState, dfc) },
{ "urp", offsetof(CPUM68KState, mmu.urp) },
{ "srp", offsetof(CPUM68KState, mmu.srp) },
{ "dttr0", offsetof(CPUM68KState, mmu.ttr[M68K_DTTR0]) },
@@ -400,8 +400,8 @@ static void m68k_interrupt_all(CPUM68KState *env, int is_hw)
mmu_fault = 0;
if (qemu_loglevel_mask(CPU_LOG_INT)) {
qemu_log(" "
- "ssw: %08x ea: %08x\n",
- env->mmu.ssw, env->mmu.ar);
+ "ssw: %08x ea: %08x sfc: %d dfc: %d\n",
+ env->mmu.ssw, env->mmu.ar, env->sfc, env->dfc);
}
} else if (cs->exception_index == EXCP_ADDRESS) {
do_stack_frame(env, &sp, 2, oldsr, 0, retaddr);
@@ -1,5 +1,7 @@
DEFO32(PC, pc)
DEFO32(SR, sr)
+DEFO32(DFC, dfc)
+DEFO32(SFC, sfc)
DEFO32(CC_OP, cc_op)
DEFO32(CC_X, cc_x)
DEFO32(CC_C, cc_c)
@@ -48,6 +48,8 @@ static char cpu_reg_names[2 * 8 * 3 + 5 * 4];
static TCGv cpu_dregs[8];
static TCGv cpu_aregs[8];
static TCGv_i64 cpu_macc[4];
+static TCGv QEMU_DFC;
+static TCGv QEMU_SFC;
#define REG(insn, pos) (((insn) >> (pos)) & 7)
#define DREG(insn, pos) cpu_dregs[REG(insn, pos)]
@@ -103,6 +105,10 @@ void m68k_tcg_init(void)
p += 5;
}
+ QEMU_DFC = tcg_global_mem_new(cpu_env, offsetof(CPUM68KState, dfc),
+ "DFC");
+ QEMU_SFC = tcg_global_mem_new(cpu_env, offsetof(CPUM68KState, sfc),
+ "SFC");
NULL_QREG = tcg_global_mem_new(cpu_env, -4, "NULL");
store_dummy = tcg_global_mem_new(cpu_env, -8, "NULL");
}
@@ -4449,6 +4455,70 @@ DISAS_INSN(move_from_sr)
}
#if defined(CONFIG_SOFTMMU)
+DISAS_INSN(moves)
+{
+ int opsize;
+ uint16_t ext;
+ TCGv reg;
+ TCGv addr;
+ TCGv size;
+ int extend;
+
+ if (IS_USER(s)) {
+ gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);
+ return;
+ }
+
+ ext = read_im16(env, s);
+
+ opsize = insn_opsize(insn);
+
+ if (ext & 0x8000) {
+ /* address register */
+ reg = AREG(ext, 12);
+ extend = 1;
+ } else {
+ /* data register */
+ reg = DREG(ext, 12);
+ extend = 0;
+ }
+
+ addr = gen_lea(env, s, insn, opsize);
+ if (IS_NULL_QREG(addr)) {
+ gen_addr_fault(s);
+ return;
+ }
+
+ size = tcg_const_i32(opsize);
+ if (ext & 0x0800) {
+ /* from reg to ea */
+ gen_helper_moves_store(cpu_env, reg, addr, size);
+ } else {
+ /* from ea to reg */
+ TCGv tmp = tcg_temp_new();
+ gen_helper_moves_load(tmp, cpu_env, addr, size);
+ if (extend) {
+ gen_ext(reg, tmp, opsize, 1);
+ } else {
+ gen_partset_reg(opsize, reg, tmp);
+ }
+ tcg_temp_free(tmp);
+ }
+ tcg_temp_free(size);
+
+ switch (extract32(insn, 3, 3)) {
+ case 3: /* Indirect postincrement. */
+ tcg_gen_addi_i32(AREG(insn, 0), addr,
+ REG(insn, 0) == 7 && opsize == OS_BYTE
+ ? 2
+ : opsize_bytes(opsize));
+ break;
+ case 4: /* Indirect predecrememnt. */
+ tcg_gen_mov_i32(AREG(insn, 0), addr);
+ break;
+ }
+}
+
DISAS_INSN(move_to_sr)
{
if (IS_USER(s)) {
@@ -5601,6 +5671,9 @@ void register_m68k_insns (CPUM68KState *env)
BASE(bitop_im, 08c0, ffc0);
INSN(arith_im, 0a80, fff8, CF_ISA_A);
INSN(arith_im, 0a00, ff00, M68000);
+#if defined(CONFIG_SOFTMMU)
+ INSN(moves, 0e00, ff00, M68000);
+#endif
INSN(cas, 0ac0, ffc0, CAS);
INSN(cas, 0cc0, ffc0, CAS);
INSN(cas, 0ec0, ffc0, CAS);
@@ -5981,6 +6054,7 @@ void m68k_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
env->current_sp == M68K_USP ? "->" : " ", env->sp[M68K_USP],
env->current_sp == M68K_ISP ? "->" : " ", env->sp[M68K_ISP]);
cpu_fprintf(f, "VBR = 0x%08x\n", env->vbr);
+ cpu_fprintf(f, "SFC = %x DFC %x\n", env->sfc, env->dfc);
cpu_fprintf(f, "SSW %08x TCR %08x URP %08x SRP %08x\n",
env->mmu.ssw, env->mmu.tcr, env->mmu.urp, env->mmu.srp);
cpu_fprintf(f, "DTTR0/1: %08x/%08x ITTR0/1: %08x/%08x\n",
and introduce SFC and DFC control registers. Signed-off-by: Laurent Vivier <laurent@vivier.eu> --- target/m68k/cpu.h | 2 ++ target/m68k/helper.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++ target/m68k/helper.h | 2 ++ target/m68k/monitor.c | 2 ++ target/m68k/op_helper.c | 4 +-- target/m68k/qregs.def | 2 ++ target/m68k/translate.c | 74 ++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 166 insertions(+), 2 deletions(-)