Revision 2e70f6ef target-ppc/translate.c
| b/target-ppc/translate.c | ||
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| 43 | 43 |
/*****************************************************************************/ |
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/* Code translation helpers */ |
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static TCGv cpu_env; |
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#include "gen-icount.h" |
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void ppc_translate_init(void) |
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{
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int done_init = 0; |
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if (done_init) |
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return; |
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cpu_env = tcg_global_reg_new(TCG_TYPE_PTR, TCG_AREG0, "env"); |
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done_init = 1; |
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} |
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#if defined(OPTIMIZE_FPRF_UPDATE) |
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static uint16_t *gen_fprf_buf[OPC_BUF_SIZE]; |
| 48 | 61 |
static uint16_t **gen_fprf_ptr; |
| ... | ... | |
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uint16_t *gen_opc_end; |
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int supervisor, little_endian; |
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int j, lj = -1; |
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int num_insns; |
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int max_insns; |
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pc_start = tb->pc; |
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gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| ... | ... | |
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/* Single step trace mode */ |
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msr_se = 1; |
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#endif |
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num_insns = 0; |
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max_insns = tb->cflags & CF_COUNT_MASK; |
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if (max_insns == 0) |
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max_insns = CF_COUNT_MASK; |
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gen_icount_start(); |
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/* Set env in case of segfault during code fetch */ |
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while (ctx.exception == POWERPC_EXCP_NONE && gen_opc_ptr < gen_opc_end) {
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if (unlikely(env->nb_breakpoints > 0)) {
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| ... | ... | |
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gen_opc_instr_start[lj++] = 0; |
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gen_opc_pc[lj] = ctx.nip; |
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gen_opc_instr_start[lj] = 1; |
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gen_opc_icount[lj] = num_insns; |
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} |
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} |
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#if defined PPC_DEBUG_DISAS |
| ... | ... | |
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ctx.nip, supervisor, (int)msr_ir); |
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} |
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#endif |
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if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) |
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gen_io_start(); |
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if (unlikely(little_endian)) {
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ctx.opcode = bswap32(ldl_code(ctx.nip)); |
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} else {
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| ... | ... | |
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#endif |
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ctx.nip += 4; |
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table = env->opcodes; |
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num_insns++; |
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handler = table[opc1(ctx.opcode)]; |
| 6257 | 6282 |
if (is_indirect_opcode(handler)) {
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table = ind_table(handler); |
| ... | ... | |
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ctx.exception != POWERPC_EXCP_BRANCH)) {
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GEN_EXCP(ctxp, POWERPC_EXCP_TRACE, 0); |
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} else if (unlikely(((ctx.nip & (TARGET_PAGE_SIZE - 1)) == 0) || |
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(env->singlestep_enabled))) {
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(env->singlestep_enabled) || |
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num_insns >= max_insns)) {
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/* if we reach a page boundary or are single stepping, stop |
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* generation |
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*/ |
| ... | ... | |
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break; |
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#endif |
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} |
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if (tb->cflags & CF_LAST_IO) |
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gen_io_end(); |
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if (ctx.exception == POWERPC_EXCP_NONE) {
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gen_goto_tb(&ctx, 0, ctx.nip); |
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} else if (ctx.exception != POWERPC_EXCP_BRANCH) {
|
| ... | ... | |
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/* Generate the return instruction */ |
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tcg_gen_exit_tb(0); |
| 6328 | 6356 |
} |
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gen_icount_end(tb, num_insns); |
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*gen_opc_ptr = INDEX_op_end; |
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if (unlikely(search_pc)) {
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j = gen_opc_ptr - gen_opc_buf; |
| ... | ... | |
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gen_opc_instr_start[lj++] = 0; |
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} else {
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tb->size = ctx.nip - pc_start; |
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tb->icount = num_insns; |
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} |
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#if defined(DEBUG_DISAS) |
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if (loglevel & CPU_LOG_TB_CPU) {
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