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comparison vdp.c @ 2259:425b44fd7bf1

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Fix TMS9918A sprite horizontal position
author Michael Pavone <pavone@retrodev.com>
date Sun, 18 Dec 2022 22:42:27 -0800
parents a28e1042f4de
children 3f155bc13183
comparison
equal deleted inserted replaced
2258:a28e1042f4de 2259:425b44fd7bf1
3758 3758
3759 static uint8_t tms_sprite_clock(vdp_context *context, int16_t offset) 3759 static uint8_t tms_sprite_clock(vdp_context *context, int16_t offset)
3760 { 3760 {
3761 int16_t x = context->hslot << 1; 3761 int16_t x = context->hslot << 1;
3762 if (x > 294) { 3762 if (x > 294) {
3763 x -= 512; 3763 x -= 512 + 8;
3764 } else {
3765 x -= 8;
3764 } 3766 }
3765 x += offset; 3767 x += offset;
3766 uint8_t output = 0; 3768 uint8_t output = 0;
3767 for (int i = 0; i < 4; i++) { 3769 for (int i = 0; i < 4; i++) {
3768 if (x >= context->sprite_draw_list[i].x_pos) { 3770 if (x >= context->sprite_draw_list[i].x_pos) {