Mercurial > repos > blastem
changeset 1143:d4d770cfbc62
Fix handling of IO control writes in SMS mode
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Tue, 03 Jan 2017 20:42:15 -0800 |
parents | 5c8b1c33ca10 |
children | be3df2d8530a |
files | sms.c |
diffstat | 1 files changed, 2 insertions(+), 2 deletions(-) [+] |
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--- a/sms.c Mon Jan 02 23:35:40 2017 -0800 +++ b/sms.c Tue Jan 03 20:42:15 2017 -0800 @@ -12,8 +12,8 @@ z80_context *z80 = vcontext; sms_context *sms = z80->system; if (location & 1) { - sms->io.ports[0].control = ~(value << 5 & 0x60); - sms->io.ports[1].control = ~(value << 3 & 0x60); + sms->io.ports[0].control = (~value) << 5 & 0x60; + sms->io.ports[1].control = (~value) << 3 & 0x60; io_data_write(sms->io.ports, value << 1, z80->current_cycle); io_data_write(sms->io.ports + 1, value >> 1, z80->current_cycle); } else {