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comparison gen_x86.c @ 1298:d5a47597b61f

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Prevent blowing past our native translated instruction size of 255 bytes when translating movem with a large register list. Fixes bug in which Fantastic Dizzy was completely broken on 32-bit builds
author Michael Pavone <pavone@retrodev.com>
date Sat, 25 Mar 2017 00:21:32 -0700
parents 0649cd8ca097
children 101b5ce682fe
comparison
equal deleted inserted replaced
1297:71b1a080b30c 1298:d5a47597b61f
1997 fatal_error("call: %p - %p = %lX which is out of range for a 32-bit displacement\n", fun, out + 5, (long)disp); 1997 fatal_error("call: %p - %p = %lX which is out of range for a 32-bit displacement\n", fun, out + 5, (long)disp);
1998 } 1998 }
1999 code->cur = out; 1999 code->cur = out;
2000 } 2000 }
2001 2001
2002 2002 volatile int foo;
2003 void call(code_info *code, code_ptr fun) 2003 void call(code_info *code, code_ptr fun)
2004 { 2004 {
2005 foo = *fun;
2005 code->stack_off += sizeof(void *); 2006 code->stack_off += sizeof(void *);
2006 int32_t adjust = 0; 2007 int32_t adjust = 0;
2007 if (code->stack_off & 0xF) { 2008 if (code->stack_off & 0xF) {
2008 adjust = 16 - (code->stack_off & 0xF); 2009 adjust = 16 - (code->stack_off & 0xF);
2009 code->stack_off += adjust; 2010 code->stack_off += adjust;
2060 { 2061 {
2061 check_alloc_code(code, 1); 2062 check_alloc_code(code, 1);
2062 code_ptr out = code->cur; 2063 code_ptr out = code->cur;
2063 *(out++) = OP_RETN; 2064 *(out++) = OP_RETN;
2064 code->cur = out; 2065 code->cur = out;
2066 }
2067
2068 void rts(code_info *code)
2069 {
2070 retn(code);
2065 } 2071 }
2066 2072
2067 void cdq(code_info *code) 2073 void cdq(code_info *code)
2068 { 2074 {
2069 check_alloc_code(code, 1); 2075 check_alloc_code(code, 1);