Mercurial > repos > blastem
changeset 1424:4f96103b4b47
Fix s(tep) debug command for the case of dbra with an expired counter reg
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Thu, 06 Jul 2017 21:51:35 -0700 |
parents | 9a3e003bdcb3 |
children | 49d3c572b3f2 |
files | debug.c |
diffstat | 1 files changed, 10 insertions(+), 4 deletions(-) [+] |
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--- a/debug.c Fri Jun 30 18:42:52 2017 -0700 +++ b/debug.c Thu Jul 06 21:51:35 2017 -0700 @@ -796,10 +796,16 @@ branch_f = after; branch_t = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF; insert_breakpoint(context, branch_t, debugger); - } else if(inst.op == M68K_DBCC && inst.extra.cond != COND_FALSE) { - branch_t = after; - branch_f = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF; - insert_breakpoint(context, branch_f, debugger); + } else if(inst.op == M68K_DBCC) { + if (inst.extra.cond == COND_FALSE) { + if (context->dregs[inst.dst.params.regs.pri] & 0xFFFF) { + after = m68k_branch_target(&inst, context->dregs, context->aregs); + } + } else { + branch_t = after; + branch_f = m68k_branch_target(&inst, context->dregs, context->aregs); + insert_breakpoint(context, branch_f, debugger); + } } else { after = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF; }