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Video changes of the day (November 13th, 2024)

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1. Finally add the ATI 8514/A Ultra add-on BIOS in both ISA and MCA variants (despite the ROM page failure on POST).
2. Fixed a mode switch bug in the Mach8 (both add-on and vga combo) when exiting the Win3.x GUI using the native drivers.
3. Corrected (best possible) the eeprom load of the Mach8 products.
4. Partial implementation of the FIFO on the 8514/A compatible products including Mach8/32 and plain IBM 8514/A.
This commit is contained in:
TC1995
2024-11-13 22:55:16 +01:00
parent 62e3daa718
commit afe95cd20c
7 changed files with 338 additions and 241 deletions
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8
src/include/86box/vid_8514a.h
View File

@@ -42,6 +42,9 @@ typedef union {
typedef struct ibm8514_t {
rom_t bios_rom;
rom_t bios_rom2;
mem_mapping_t bios_mapping;
uint8_t *rom1;
uint8_t *rom2;
hwcursor8514_t hwcursor;
hwcursor8514_t hwcursor_latch;
uint8_t pos_regs[8];
@@ -212,6 +215,8 @@ typedef struct ibm8514_t {
uint8_t subsys_cntl;
uint8_t subsys_stat;
atomic_int fifo_idx;
atomic_int ext_fifo_idx;
atomic_int force_busy;
atomic_int force_busy2;
@@ -223,11 +228,10 @@ typedef struct ibm8514_t {
int ext_crt_pitch;
int extensions;
int linear;
int _4bpp;
uint32_t vram_amount;
int vram_512k_8514;
PALETTE _8514pal;
int vendor_mode;
PALETTE _8514pal;
latch8514_t latch;
} ibm8514_t;

3
src/include/86box/vid_ati_eeprom.h
View File

@@ -47,7 +47,8 @@ typedef struct ati_eeprom_t {
} ati_eeprom_t;
void ati_eeprom_load(ati_eeprom_t *eeprom, char *fn, int type);
void ati_eeprom_load_mach8(ati_eeprom_t *eeprom, char *fn);
void ati_eeprom_load_mach8(ati_eeprom_t *eeprom, char *fn, int mca);
void ati_eeprom_load_mach8_vga(ati_eeprom_t *eeprom, char *fn);
void ati_eeprom_write(ati_eeprom_t *eeprom, int ena, int clk, int dat);
int ati_eeprom_read(ati_eeprom_t *eeprom);

2
src/include/86box/vid_svga.h
View File

@@ -312,7 +312,6 @@ extern void ibm8514_accel_out_pixtrans(svga_t *svga, uint16_t port, uint32_t
extern void ibm8514_short_stroke_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, svga_t *svga, uint8_t ssv, int len);
extern void ibm8514_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat, svga_t *svga, int len);
#ifdef ATI_8514_ULTRA
extern void ati8514_out(uint16_t addr, uint8_t val, void *priv);
extern uint8_t ati8514_in(uint16_t addr, void *priv);
extern void ati8514_recalctimings(svga_t *svga);
@@ -320,7 +319,6 @@ extern uint8_t ati8514_mca_read(int port, void *priv);
extern void ati8514_mca_write(int port, uint8_t val, void *priv);
extern void ati8514_pos_write(uint16_t port, uint8_t val, void *priv);
extern void ati8514_init(svga_t *svga, void *ext8514, void *dev8514);
#endif
extern void xga_write_test(uint32_t addr, uint8_t val, void *priv);
extern uint8_t xga_read_test(uint32_t addr, void *priv);