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comparison m68k_core.c @ 1896:c157a535ceeb

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Reset 68K supervisor state and interrupt mask on soft reset
author Michael Pavone <pavone@retrodev.com>
date Tue, 07 Jan 2020 22:52:27 -0800
parents eda8df5bc74c
children 374a5ae694e8 8ee7ecbf3f21
comparison
equal deleted inserted replaced
1895:33c0c4579c1f 1896:c157a535ceeb
1186 1186
1187 void m68k_reset(m68k_context * context) 1187 void m68k_reset(m68k_context * context)
1188 { 1188 {
1189 //TODO: Actually execute the M68K reset vector rather than simulating some of its behavior 1189 //TODO: Actually execute the M68K reset vector rather than simulating some of its behavior
1190 uint16_t *reset_vec = get_native_pointer(0, (void **)context->mem_pointers, &context->options->gen); 1190 uint16_t *reset_vec = get_native_pointer(0, (void **)context->mem_pointers, &context->options->gen);
1191 if (!(context->status & 0x20)) {
1192 //switching from user to system mode so swap stack pointers
1193 context->aregs[8] = context->aregs[7];
1194 }
1195 context->status = 0x27;
1191 context->aregs[7] = reset_vec[0] << 16 | reset_vec[1]; 1196 context->aregs[7] = reset_vec[0] << 16 | reset_vec[1];
1192 uint32_t address = reset_vec[2] << 16 | reset_vec[3]; 1197 uint32_t address = reset_vec[2] << 16 | reset_vec[3];
1198 //interrupt mask may have changed so force a sync
1199 sync_components(context, address);
1193 start_68k_context(context, address); 1200 start_68k_context(context, address);
1194 } 1201 }
1195 1202
1196 void m68k_options_free(m68k_options *opts) 1203 void m68k_options_free(m68k_options *opts)
1197 { 1204 {