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Added LCD command to the debugger

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This commit is contained in:
Lior Halphon 2017-04-22 14:55:17 +03:00
parent c766704267
commit 22d3510dde
2 changed files with 41 additions and 3 deletions
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42
Core/debugger.c
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@ -743,8 +743,6 @@ static bool registers(GB_gameboy_t *gb, char *arguments, char *modifiers, const
GB_log(gb, "HL = %s\n", value_to_string(gb, gb->registers[GB_REGISTER_HL], false)); GB_log(gb, "HL = %s\n", value_to_string(gb, gb->registers[GB_REGISTER_HL], false));
GB_log(gb, "SP = %s\n", value_to_string(gb, gb->registers[GB_REGISTER_SP], false)); GB_log(gb, "SP = %s\n", value_to_string(gb, gb->registers[GB_REGISTER_SP], false));
GB_log(gb, "PC = %s\n", value_to_string(gb, gb->pc, false)); GB_log(gb, "PC = %s\n", value_to_string(gb, gb->pc, false));
GB_log(gb, "Display Controller: LY = %d/%u\n", gb->io_registers[GB_IO_LY], gb->display_cycles % 456);
return true; return true;
} }
@ -1384,6 +1382,45 @@ static bool palettes(GB_gameboy_t *gb, char *arguments, char *modifiers, const d
return true; return true;
} }
static bool lcd(GB_gameboy_t *gb, char *arguments, char *modifiers, const debugger_command_t *command)
{
NO_MODIFIERS
if (strlen(lstrip(arguments))) {
print_usage(gb, command);
return true;
}
GB_log(gb, "LCDC:\n");
GB_log(gb, " LCD enabled: %s\n",(gb->io_registers[GB_IO_LCDC] & 128)? "Enabled" : "Disabled");
GB_log(gb, " %s: %s\n", gb->is_cgb? (gb->cgb_mode? "Sprite priority flags" : "Background and Window") : "Background",
(gb->io_registers[GB_IO_LCDC] & 1)? "Enabled" : "Disabled");
GB_log(gb, " Objects: %s\n", (gb->io_registers[GB_IO_LCDC] & 2)? "Enabled" : "Disabled");
GB_log(gb, " Object size: %s\n", (gb->io_registers[GB_IO_LCDC] & 4)? "8x16" : "8x8");
GB_log(gb, " Background tilemap: %s\n", (gb->io_registers[GB_IO_LCDC] & 8)? "$9C00" : "$9800");
GB_log(gb, " Background and Window Tileset: %s\n", (gb->io_registers[GB_IO_LCDC] & 16)? "$8000" : "$8800");
GB_log(gb, " Window: %s\n", (gb->io_registers[GB_IO_LCDC] & 32)? "Enabled" : "Disabled");
GB_log(gb, " Window tilemap: %s\n", (gb->io_registers[GB_IO_LCDC] & 64)? "$9C00" : "$9800");
GB_log(gb, "\nSTAT:\n");
static const char *modes[] = {"Mode 0, H-Blank", "Mode 1, V-Blank", "Mode 2, OAM", "Mode 3, Rendering"};
GB_log(gb, " Current mode: %s\n", modes[gb->io_registers[GB_IO_STAT] & 3]);
GB_log(gb, " LYC flag: %s\n", (gb->io_registers[GB_IO_STAT] & 4)? "On" : "Off");
GB_log(gb, " H-Blank interrupt: %s\n", (gb->io_registers[GB_IO_STAT] & 8)? "Enabled" : "Disabled");
GB_log(gb, " V-Blank interrupt: %s\n", (gb->io_registers[GB_IO_STAT] & 16)? "Enabled" : "Disabled");
GB_log(gb, " OAM interrupt: %s\n", (gb->io_registers[GB_IO_STAT] & 32)? "Enabled" : "Disabled");
GB_log(gb, " LYC interrupt: %s\n", (gb->io_registers[GB_IO_STAT] & 64)? "Enabled" : "Disabled");
GB_log(gb, "\nCycles since frame start: %d\n", gb->display_cycles);
GB_log(gb, "Current line: %d\n", gb->display_cycles / 456);
GB_log(gb, "LY: %d\n", gb->io_registers[GB_IO_LY]);
GB_log(gb, "LYC: %d\n", gb->io_registers[GB_IO_LYC]);
GB_log(gb, "Window position: %d, %d\n", (signed) gb->io_registers[GB_IO_WX] - 7 , gb->io_registers[GB_IO_WY]);
GB_log(gb, "Interrupt line: %s\n", gb->stat_interrupt_line? "On" : "Off");
return true;
}
static bool help(GB_gameboy_t *gb, char *arguments, char *modifiers, const debugger_command_t *command); static bool help(GB_gameboy_t *gb, char *arguments, char *modifiers, const debugger_command_t *command);
#define HELP_NEWLINE "\n " #define HELP_NEWLINE "\n "
@ -1401,6 +1438,7 @@ static const debugger_command_t commands[] = {
{"registers", 1, registers, "Print values of processor registers and other important registers"}, {"registers", 1, registers, "Print values of processor registers and other important registers"},
{"cartridge", 2, mbc, "Displays information about the MBC and cartridge"}, {"cartridge", 2, mbc, "Displays information about the MBC and cartridge"},
{"mbc", 3, }, /* Alias */ {"mbc", 3, }, /* Alias */
{"lcd", 3, lcd, "Displays information about the current state of the LCD controller"},
{"palettes", 3, palettes, "Displays the current CGB palettes"}, {"palettes", 3, palettes, "Displays the current CGB palettes"},
{"breakpoint", 1, breakpoint, "Add a new breakpoint at the specified address/expression" HELP_NEWLINE {"breakpoint", 1, breakpoint, "Add a new breakpoint at the specified address/expression" HELP_NEWLINE
"Can also modify the condition of existing breakpoints.", "Can also modify the condition of existing breakpoints.",

2
Core/gb.h
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@ -366,7 +366,7 @@ struct GB_gameboy_internal_s {
uint32_t background_palettes_rgb[0x20]; uint32_t background_palettes_rgb[0x20];
uint32_t sprite_palettes_rgb[0x20]; uint32_t sprite_palettes_rgb[0x20];
int16_t previous_lcdc_x; int16_t previous_lcdc_x;
uint8_t padding; GB_PADDING(uint8_t, padding);
bool effective_window_enabled; bool effective_window_enabled;
uint8_t effective_window_y; uint8_t effective_window_y;
bool stat_interrupt_line; bool stat_interrupt_line;