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De-magic colorplus_out

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starfrost013
2025-06-09 21:43:32 +01:00
parent b7e6248db9
commit ec7e75bb81
1 changed files with 12 additions and 9 deletions
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21
src/video/vid_colorplus.c
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@@ -37,16 +37,19 @@
#include <86box/plat_unused.h> #include <86box/plat_unused.h>
/* Bits in the colorplus control register: */ /* Bits in the colorplus control register: */
#define COLORPLUS_PLANE_SWAP 0x40 /* Swap planes at 0000h and 4000h */ #define COLORPLUS_PLANE_SWAP 0x40 /* Swap planes at 0000h and 4000h */
#define COLORPLUS_640x200_MODE 0x20 /* 640x200x4 mode active */ #define COLORPLUS_640x200_MODE 0x20 /* 640x200x4 mode active */
#define COLORPLUS_320x200_MODE 0x10 /* 320x200x16 mode active */ #define COLORPLUS_320x200_MODE 0x10 /* 320x200x16 mode active */
#define COLORPLUS_EITHER_MODE 0x30 /* Either mode active */ #define COLORPLUS_EITHER_MODE 0x30 /* Either mode active */
#define CGA_RGB 0 #define CGA_RGB 0
#define CGA_COMPOSITE 1 #define CGA_COMPOSITE 1
#define COMPOSITE_OLD 0 #define COMPOSITE_OLD 0
#define COMPOSITE_NEW 1 #define COMPOSITE_NEW 1
// Plantronics specific registers
#define COLORPLUS_CONTROL 0x3DD
video_timings_t timing_colorplus = { .type = VIDEO_ISA, .write_b = 8, .write_w = 16, .write_l = 32, .read_b = 8, .read_w = 16, .read_l = 32 }; video_timings_t timing_colorplus = { .type = VIDEO_ISA, .write_b = 8, .write_w = 16, .write_l = 32, .read_b = 8, .read_w = 16, .read_l = 32 };
@@ -57,7 +60,7 @@ colorplus_out(uint16_t addr, uint8_t val, void *priv)
{ {
colorplus_t *colorplus = (colorplus_t *) priv; colorplus_t *colorplus = (colorplus_t *) priv;
if (addr == 0x3DD) { if (addr == COLORPLUS_CONTROL) {
colorplus->control = val & 0x70; colorplus->control = val & 0x70;
} else { } else {
cga_out(addr, val, &colorplus->cga); cga_out(addr, val, &colorplus->cga);