diff --git a/src/machine/m_pcjr.c b/src/machine/m_pcjr.c index e569dc674..88f9da2e3 100644 --- a/src/machine/m_pcjr.c +++ b/src/machine/m_pcjr.c @@ -96,6 +96,7 @@ typedef struct pcjr_t { int firstline; int lastline; int composite; + int apply_hd; /* Keyboard Controller stuff. */ int latched; @@ -727,9 +728,12 @@ vid_poll(void *priv) if (enable_overscan) { video_blit_memtoscreen(0, pcjr->firstline << 1, xsize, actual_ys + 32); - } else { + } else if (pcjr->apply_hd) { video_blit_memtoscreen(ho_s / 2, (pcjr->firstline << 1) + 16, xsize, actual_ys); + } else { + video_blit_memtoscreen(ho_d, (pcjr->firstline << 1) + 16, + xsize, actual_ys); } } @@ -951,6 +955,13 @@ static const device_config_t pcjr_config[] = { { .description = "" } } }, + { + .name = "apply_hd", + .description = "Apply overscan deltas", + .type = CONFIG_BINARY, + .default_string = "", + .default_int = 1 + }, { .name = "", .description = "", .type = CONFIG_END } // clang-format on }; @@ -990,6 +1001,7 @@ machine_pcjr_init(UNUSED(const machine_t *model)) pcjr->memctrl &= ~0x24; display_type = machine_get_config_int("display_type"); pcjr->composite = (display_type != PCJR_RGB); + pcjr->apply_hd = machine_get_config_int("display_type"); overscan_x = 256; overscan_y = 32;