From f97a9ef2967da65f867d5eaaa78bfb8cf84afe0e Mon Sep 17 00:00:00 2001 From: Michael Pavone Date: Sun, 16 Feb 2014 18:17:59 -0800 Subject: Generate retrans_stub at runtime so it can use the generated save/load_context functions --- m68k_to_x86.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'm68k_to_x86.c') diff --git a/m68k_to_x86.c b/m68k_to_x86.c index 5bfbe29..f3e6c46 100644 --- a/m68k_to_x86.c +++ b/m68k_to_x86.c @@ -34,7 +34,6 @@ void handle_cycle_limit(); void m68k_native_addr(); void m68k_native_addr_and_sync(); void m68k_invalid(); -void m68k_retrans_stub(); void set_sr(); void set_ccr(); void get_sr(); @@ -4016,7 +4015,24 @@ m68k_context * m68k_handle_code_write(uint32_t address, m68k_context * context) if (inst_start) { uint8_t * dst = get_native_address(context->native_code_map, inst_start); dst = mov_ir(dst, inst_start, SCRATCH2, SZ_D); - dst = jmp(dst, (uint8_t *)m68k_retrans_stub); + x86_68k_options * options = context->options; + if (!options->retrans_stub) { + if (options->code_end - options->cur_code < 32) { + size_t size = 1024*1024; + options->cur_code = alloc_code(&size); + options->code_end = options->cur_code + size; + } + uint8_t * rdst = options->retrans_stub = options->cur_code; + rdst = call(rdst, options->save_context); + rdst = push_r(rdst, CONTEXT); + rdst = call(rdst, (uint8_t *)m68k_retranslate_inst); + rdst = pop_r(rdst, CONTEXT); + rdst = mov_rr(rdst, RAX, SCRATCH1, SZ_Q); + rdst = call(rdst, options->load_context); + rdst = jmp_r(rdst, SCRATCH1); + options->cur_code = rdst; + } + dst = jmp(dst, options->retrans_stub); } return context; } -- cgit v1.2.3