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comparison m68k_core_x86.c @ 2232:0c42982dd4d8

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Make sure 68K interrupt is executed immediately when resuming core if it has a target cycle <= current. Fixes IRQ tests in mcd-verificator
author Michael Pavone <pavone@retrodev.com>
date Thu, 08 Sep 2022 20:50:18 -0700
parents d15c68157288
children 8e8db9141209
comparison
equal deleted inserted replaced
2231:8e6fb2c06024 2232:0c42982dd4d8
2989 jmp_r(code, opts->gen.scratch1); 2989 jmp_r(code, opts->gen.scratch1);
2990 2990
2991 *code = tmp_code; 2991 *code = tmp_code;
2992 2992
2993 opts->gen.handle_cycle_limit_int = code->cur; 2993 opts->gen.handle_cycle_limit_int = code->cur;
2994 //calculate stack adjust size 2994 //calculate address adjust for sync return
2995 add_ir(code, 16-sizeof(void*), RSP, SZ_PTR); 2995 check_cycles_int(&opts->gen, 0);
2996 uint32_t adjust_size = code->cur - opts->gen.handle_cycle_limit_int; 2996 uint32_t adjust_size = code->cur - opts->gen.handle_cycle_limit_int;
2997 code->cur = opts->gen.handle_cycle_limit_int;
2998 add_ir(code, 16-sizeof(void *), RSP, SZ_PTR);
2999 adjust_size -= code->cur - opts->gen.handle_cycle_limit_int;
2997 code->cur = opts->gen.handle_cycle_limit_int; 3000 code->cur = opts->gen.handle_cycle_limit_int;
2998 //handle trace mode 3001 //handle trace mode
2999 cmp_irdisp(code, 0, opts->gen.context_reg, offsetof(m68k_context, trace_pending), SZ_B); 3002 cmp_irdisp(code, 0, opts->gen.context_reg, offsetof(m68k_context, trace_pending), SZ_B);
3000 code_ptr do_trace = code->cur + 1; 3003 code_ptr do_trace = code->cur + 1;
3001 jcc(code, CC_NZ, do_trace); 3004 jcc(code, CC_NZ, do_trace);
3024 *do_ret = code->cur - (do_ret+1); 3027 *do_ret = code->cur - (do_ret+1);
3025 uint32_t tmp_stack_off = code->stack_off; 3028 uint32_t tmp_stack_off = code->stack_off;
3026 //fetch return address and adjust RSP 3029 //fetch return address and adjust RSP
3027 pop_r(code, opts->gen.scratch1); 3030 pop_r(code, opts->gen.scratch1);
3028 add_ir(code, 16-sizeof(void *), RSP, SZ_PTR); 3031 add_ir(code, 16-sizeof(void *), RSP, SZ_PTR);
3029 add_ir(code, adjust_size, opts->gen.scratch1, SZ_PTR); 3032 sub_ir(code, adjust_size, opts->gen.scratch1, SZ_PTR);
3030 //save return address for restoring later 3033 //save return address for restoring later
3031 mov_rrdisp(code, opts->gen.scratch1, opts->gen.context_reg, offsetof(m68k_context, resume_pc), SZ_PTR); 3034 mov_rrdisp(code, opts->gen.scratch1, opts->gen.context_reg, offsetof(m68k_context, resume_pc), SZ_PTR);
3032 retn(code); 3035 retn(code);
3033 code->stack_off = tmp_stack_off; 3036 code->stack_off = tmp_stack_off;
3034 *do_trace = code->cur - (do_trace + 1); 3037 *do_trace = code->cur - (do_trace + 1);