diff options
Diffstat (limited to 'z80_to_x86.c')
| -rw-r--r-- | z80_to_x86.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/z80_to_x86.c b/z80_to_x86.c index 19b76ce..a458011 100644 --- a/z80_to_x86.c +++ b/z80_to_x86.c @@ -893,8 +893,11 @@ uint8_t * translate_z80inst(z80inst * inst, uint8_t * dst, z80_context * context case Z80_EI: //TODO: Implement interrupt enable latency of 1 instruction afer EI dst = zcycles(dst, 4); + dst = mov_rrdisp8(dst, ZCYCLES, CONTEXT, offsetof(z80_context, int_enable_cycle), SZ_D); dst = mov_irdisp8(dst, 1, CONTEXT, offsetof(z80_context, iff1), SZ_B); dst = mov_irdisp8(dst, 1, CONTEXT, offsetof(z80_context, iff2), SZ_B); + //interrupt enable has a one-instruction latency, minimum instruction duration is 4 cycles + dst = add_irdisp8(dst, 4, CONTEXT, offsetof(z80_context, int_enable_cycle), SZ_D); dst = call(dst, (uint8_t *)z80_do_sync); break; case Z80_IM: |