Mercurial > repos > blastem
changeset 2422:1978bd770023
Expose gamepad state in debugger
| author | Michael Pavone <pavone@retrodev.com> |
|---|---|
| date | Sat, 20 Jan 2024 21:15:56 -0800 |
| parents | bcfa5e272f5e |
| children | b733a10488c6 |
| files | debug.c io.c io.h |
| diffstat | 3 files changed, 43 insertions(+), 1 deletions(-) [+] |
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--- a/debug.c Sat Jan 20 01:30:19 2024 -0800 +++ b/debug.c Sat Jan 20 21:15:56 2024 -0800 @@ -2039,6 +2039,46 @@ return root; } +static debug_val debug_iopad_get(debug_array *array, uint32_t index) +{ + io_port *port = find_gamepad(array->base, index + 1); + uint32_t ret = 0; + if (port) { + ret |= port->input[1]; + ret |= port->input[0] << 2 & 0xC0; + ret |= port->input[2] << 8 & 0xF00; + } + return debug_int(ret); +} + +static void debug_iopad_set(debug_array *array, uint32_t index, debug_val val) +{ + uint32_t ival; + if (!debug_cast_int(val, &ival)) { + fprintf(stderr, "pad state can only be set to integers\n"); + return; + } + io_port *port = find_gamepad(array->base, index + 1); + if (port) { + port->input[1] &= ~0x3F; + port->input[1] |= ival & 0x3F; + port->input[0] &= ~0x33; + port->input[0] |= ival & 0x3; + port->input[0] |= ival >> 2 & 0x30; + port->input[2] &= ~0xF; + port->input[2] |= ival >> 8 & 0xF; + } +} + +debug_root *find_io_root(sega_io *io) +{ + debug_root *root = find_root(io); + + new_readonly_variable(root, "pads", new_fixed_array(io, debug_iopad_get, debug_iopad_set, MAX_JOYSTICKS)); + + return root; +} + void ambiguous_iter(char *key, tern_val val, uint8_t valtype, void *data) { char *prefix = data; @@ -4797,6 +4837,7 @@ root->other_roots = tern_insert_ptr(root->other_roots, "vdp", find_vdp_root(gen->vdp)); root->other_roots = tern_insert_ptr(root->other_roots, "ym", find_ym2612_root(gen->ym)); root->other_roots = tern_insert_ptr(root->other_roots, "psg", find_psg_root(gen->psg)); + root->other_roots = tern_insert_ptr(root->other_roots, "io", find_io_root(&gen->io)); add_commands(root, genesis_commands, NUM_GENESIS); var = calloc(1, sizeof(debug_var)); var->get = debug_frame_get;
--- a/io.c Sat Jan 20 01:30:19 2024 -0800 +++ b/io.c Sat Jan 20 21:15:56 2024 -0800 @@ -89,7 +89,7 @@ [BUTTON_MODE] = {.states = {GAMEPAD_EXTRA, GAMEPAD_NONE}, .value = 0x8}, }; -static io_port *find_gamepad(sega_io *io, uint8_t gamepad_num) +io_port *find_gamepad(sega_io *io, uint8_t gamepad_num) { for (int i = 0; i < 3; i++) {
--- a/io.h Sat Jan 20 01:30:19 2024 -0800 +++ b/io.h Sat Jan 20 21:15:56 2024 -0800 @@ -167,6 +167,7 @@ void io_keyboard_down(sega_io *io, uint8_t scancode); void io_keyboard_up(sega_io *io, uint8_t scancode); uint8_t io_has_keyboard(sega_io *io); +io_port *find_gamepad(sega_io *io, uint8_t gamepad_num); extern const char * device_type_names[];