feat(termtris): X11 key map, millisecond clock and main loop

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opencode.energia.arti.ee committed 2026-11-03 19:03:14 +00:00
1 parent 264b53a6a0
commit c1945cfc73
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*****************************************************
TMS340 COFF Linker Version 5.01
*****************************************************
Tue Nov 03 19:02:37 2026
OUTPUT FILE NAME: <INPUT.out>
ENTRY POINT SYMBOL: "_start" address: 018a0000
MEMORY CONFIGURATION
name origin length attributes
-------- -------- --------- ----------
prog 018a0000 000020000 RWIX
ram 01a00000 000040000 RWIX
SECTION ALLOCATION MAP
output attributes/
section page origin length input sections
-------- ---- ---------- ---------- ----------------
.text 0 018a0000 000043b0
018a0000 00000150 ENTRY.obj (.text)
018a0150 000003e0 INPUT.obj (.text)
018a0530 00001760 MAIN.obj (.text)
018a1c90 00002510 X11.obj (.text)
018a41a0 00000210 XGFIX.obj (.text)
.cinit 0 018a43b0 000000a0
018a43b0 00000050 MAIN.obj (.cinit)
018a4400 00000050 X11.obj (.cinit)
.bss 0 01a00000 0001e1c0 UNINITIALIZED
01a00000 00008000 ENTRY.obj (.bss)
01a08000 00001040 INPUT.obj (.bss)
01a09040 00000360 MAIN.obj (.bss)
01a093a0 00012e20 X11.obj (.bss)
01a1c1c0 00002000 XGFIX.obj (.bss)
.data 0 018a0000 00000000 UNINITIALIZED
GLOBAL SYMBOLS
address name address name
-------- ---- -------- ----
01a00000 .bss 018a0000 .data
018a0000 .data 018a0000 edata
018a0000 .text 018a0000 _start
018a0360 _game_input 018a0000 .text
018a0150 _init_game 018a0150 _init_game
018a18b0 _main 018a0250 _update
01a08040 _mark 018a0360 _game_input
018a0530 _now_ms 018a0530 _now_ms
018a07b0 _sleep_ms 018a07b0 _sleep_ms
018a0000 _start 018a0910 _vt_poll_event
01a1c0e0 _term_clearscr 018a1280 _vt_handle_event
01a1c120 _term_cursor 018a1870 _wait_display
01a08020 _term_height 018a18b0 _main
01a1c160 _term_ibmchar 018a1c90 _vt_root_window
018a4130 _term_init 018a1d70 _vt_x11_init
018a2ec0 _term_putstr 018a2420 _x11_clearscr
01a1c0c0 _term_reset 018a2610 _x11_reset
01a1c140 _term_setcolor 018a2650 _x11_cursor
01a1c100 _term_setcursor 018a26b0 _x11_setcolor
01a1c1a0 _term_type 018a27d0 _x11_setcursor
01a08000 _term_width 018a2a20 _x11_ibmchar
01a1c180 _termenv 018a2ec0 _term_putstr
018a0250 _update 018a3060 _vt_x11_flush
01a1c020 _vt_dpy 018a3e10 _vt_x11_term_init
01a1c060 _vt_gc 018a4130 _term_init
018a1280 _vt_handle_event 018a41a0 _vt_install_xg
018a41a0 _vt_install_xg 018a43b0 cinit
018a0910 _vt_poll_event 018a43b0 etext
018a1c90 _vt_root_window 01a00000 .bss
01a1c040 _vt_win 01a08000 _term_width
01a1c0a0 _vt_x11_drain_events 01a08020 _term_height
018a3060 _vt_x11_flush 01a08040 _mark
018a1d70 _vt_x11_init 01a1c020 _vt_dpy
01a1c080 _vt_x11_progress 01a1c040 _vt_win
018a3e10 _vt_x11_term_init 01a1c060 _vt_gc
018a1870 _wait_display 01a1c080 _vt_x11_progress
018a2420 _x11_clearscr 01a1c0a0 _vt_x11_drain_events
018a2650 _x11_cursor 01a1c0c0 _term_reset
018a2a20 _x11_ibmchar 01a1c0e0 _term_clearscr
018a2610 _x11_reset 01a1c100 _term_setcursor
018a26b0 _x11_setcolor 01a1c120 _term_cursor
018a27d0 _x11_setcursor 01a1c140 _term_setcolor
018a43b0 cinit 01a1c160 _term_ibmchar
018a0000 edata 01a1c180 _termenv
01a1e1c0 end 01a1c1a0 _term_type
018a43b0 etext 01a1e1c0 end
[46 symbols]
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/*
* main.c -- the VT1200 termtris event loop.
*
* The game's update()/init_game() draw through the backend's term_* callbacks;
* this file owns the X11 event drain, the real-time clock, and the key map.
*/
#include "game.h"
#include "x11.h"
#include "xlib.h"
extern int init_game(void);
extern long update(long msec);
extern void game_input(int c);
extern int vt_install_xg(void);
static vt_u32 evbuf[24];
static long ms_base;
static int ms_last = -1;
static int focused;
long now_ms(void)
{
int now;
if(ms_last < 0) {
ms_last = *(volatile unsigned short *)0x001E93C0UL;
ms_base = 0;
return 0;
}
now = *(volatile unsigned short *)0x001E93C0UL;
ms_base += (long)(unsigned short)(now - ms_last);
ms_last = now;
return ms_base;
}
void sleep_ms(int ms)
{
if(ms < 1) ms = 1;
if(ms > 10) ms = 10;
VT_SLEEP(ms);
}
int vt_poll_event(void)
{
return *(vt_u32 *)((char *)vt_dpy + 0x54) != 0;
}
static void map_keysym(vt_u32 ks, char ch, int n)
{
switch(ks) {
case 0xFF51UL: /* Left */
game_input(0x9b); game_input('D');
return;
case 0xFF53UL: /* Right */
game_input(0x9b); game_input('C');
return;
case 0xFF52UL: /* Up */
game_input(0x9b); game_input('A');
return;
case 0xFF54UL: /* Down */
game_input(0x9b); game_input('B');
return;
case 0xFF0DUL: /* Return */
game_input('\n');
return;
case 0xFF08UL: /* BackSpace */
game_input('\b');
return;
case 0xFF09UL: /* Tab */
game_input('\t');
return;
case 0xFF1BUL: /* Escape */
game_input(27);
return;
default:
break;
}
if(n > 0) {
if(ch >= 'A' && ch <= 'Z') ch = (char)(ch + ('a' - 'A'));
game_input((int)(unsigned char)ch);
}
}
void vt_handle_event(void)
{
char buf[8];
vt_u32 ks;
int n;
VT_XNEXT(vt_dpy, (void *)evbuf);
if(evbuf[0] == 2) { /* KeyPress */
ks = 0;
n = VT_XLOOKUP((void *)evbuf, buf, 8, &ks, 0);
map_keysym(ks, n > 0 ? buf[0] : 0, n);
} else if(evbuf[0] == 12) { /* Expose */
game_input('`');
} else if(evbuf[0] == 9) { /* FocusIn */
focused = 1;
} else if(evbuf[0] == 10) { /* FocusOut */
if(focused) game_input('p');
focused = 0;
}
}
void wait_display(void)
{
vt_x11_flush();
}
int main(void)
{
long d;
if(vt_x11_init() != 0)
return 1;
if(init_game() == -1)
return 2;
vt_x11_flush();
for(;;) {
VT_XSYNC(vt_dpy, 0);
while(vt_poll_event()) {
vt_handle_event();
}
d = update(now_ms());
sleep_ms((int)d);
vt_x11_flush();
}
return 0;
}
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/*
* input.c -- Task 4 acceptance: link main.c against stubs for the game, inject
* keys, and record the bytes main.c sends to game_input().
*/
#include "game.h"
#include "x11.h"
#include "xlib.h"
int term_width, term_height;
volatile vt_u32 mark[128];
int init_game(void)
{
mark[0] = 0x494E5054UL; /* INPT */
vt_x11_term_init();
x11_clearscr();
return 0;
}
long update(long msec)
{
(void)msec;
mark[1] = mark[1] + 1;
return 100;
}
void game_input(int c)
{
int n = (int)mark[2];
if(n < 100) mark[3 + n] = (vt_u32)(unsigned char)c;
mark[2] = (vt_u32)(n + 1);
}
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-- loader.lua -- debugger-assisted COFF loader acceptance harness.
--
-- Boots the firmware with VT1200_SKIP_LEVEL1=1 (the documented divergence) to
-- the OS, then at frame LOADER_AT pokes:
-- * the loader payload at bit 0x01880000 (raw dwt/loader/build/loader.bin)
-- * a GSPLNK COFF image at LOADER_BUF (default bit 0x01900000)
-- * the loader descriptor at 0x01882C00
-- and sets PC = 0x01880000. It does not use the network, the rdebug service
-- or any firmware transport: this is the debugger-assisted milestone.
--
-- The loader itself copies the COFF sections to their linked bit addresses and
-- calls create_process(entry, "LOADER", 0x6000, 1, 0). This script only pokes
-- the input and reads the result; it never writes the app's code or markers.
--
-- Env:
-- LOADER_BIN loader payload (default dwt/loader/build/loader.bin)
-- LOADER_COFF app COFF (default dwt/loader/build/marker.coff)
-- LOADER_BUF COFF buffer bit address (default 0x01900000)
-- LOADER_AT injection frame (default 2500)
-- LOADER_END inspection/exit frame (default 2700)
-- LOADER_OUT evidence directory (default dwt/loader/evidence)
-- LOADER_SNAP 1 = write a PNG at LOADER_END (default 0)
-- LOADER_VERBOSE 1 = print the result block every 25 frames
local function hex(v, w) return string.format("%0" .. (w or 8) .. "X", v) end
local machine = manager.machine
local INPUT_MARK = tonumber(os.getenv("INPUT_MARK") or "0x01A00000")
local ports = machine.ioport.ports
local key_a = ports[":lk401:K26"].fields["A"]
local key_up = ports[":lk401:K77"].fields["Up"]
local key_down = ports[":lk401:K76"].fields["Down"]
local key_left = ports[":lk401:K74"].fields["Left"]
local key_right = ports[":lk401:K75"].fields["Right"]
local key_zero = ports[":lk401:K10"].fields["0 )"]
local key_ret = ports[":lk401:K68"].fields["Return"]
local key_del = ports[":lk401:K67"].fields["Delete"]
local tabx = ports[":tablet:TABLET_X"].fields["Tablet X"]
local taby = ports[":tablet:TABLET_Y"].fields["Tablet Y"]
local tabb = ports[":tablet:TABLET_BTN"].fields["P1 Button 1"]
local cpu = machine.devices[':maincpu']
local dbg = machine.debugger
local prog = cpu.spaces['program']
if not dbg then
print("LOADER: debugger not enabled; pass -debug")
machine:exit()
return
end
local AT = tonumber(os.getenv("LOADER_AT") or "2500")
local ENDF = tonumber(os.getenv("LOADER_END") or "2700")
local BIN = os.getenv("LOADER_BIN") or "dwt/loader/build/loader.bin"
local COFF = os.getenv("LOADER_COFF") or "dwt/loader/build/marker.coff"
local BUF = tonumber(os.getenv("LOADER_BUF") or "0x01900000")
local OUT = os.getenv("LOADER_OUT") or "dwt/loader/evidence"
local SNAP = os.getenv("LOADER_SNAP") == "1"
local MODE = tonumber(os.getenv("LOADER_MODE") or "0")
local A8DESC = os.getenv("LOADER_A8_DESC") == "1"
local VERBOSE = os.getenv("LOADER_VERBOSE") == "1"
local LOADER_BASE = 0x01880000
local DESC = 0x01882C00
local RESULT = 0x01882D00
local RETURN_STUB = 0x01883100
local RETURN_SP = 0x01883110
local function rd(p) return io.open(p, "rb") end
local function slurp(p)
local f, err = rd(p)
if not f then error("cannot open " .. p .. ": " .. tostring(err)) end
local s = f:read("*a")
f:close()
return s
end
local function u16(s, o)
return s:byte(o + 1) + s:byte(o + 2) * 256
end
local function u32(s, o)
return s:byte(o + 1) + s:byte(o + 2) * 256
+ s:byte(o + 3) * 65536 + s:byte(o + 4) * 16777216
end
local function parse_coff(d)
local c = { data = d }
c.magic = u16(d, 0)
c.nscns = u16(d, 2)
c.opthdr = u16(d, 16)
c.sections = {}
if c.opthdr > 0 then
c.optmagic = u16(d, 20)
c.entry = u32(d, 20 + 16)
c.textstart = u32(d, 20 + 20)
c.datastart = u32(d, 20 + 24)
end
local base = 20 + c.opthdr
for i = 0, c.nscns - 1 do
local o = base + i * 40
local name = d:sub(o + 1, o + 8):gsub("%z", "")
c.sections[#c.sections + 1] = {
name = name,
paddr = u32(d, o + 8),
size = u32(d, o + 16), -- bits
scnptr = u32(d, o + 20),
flags = u32(d, o + 36),
}
end
return c
end
local function poke_bytes(bitaddr, data)
local n = math.floor((#data + 1) / 2)
for i = 0, n - 1 do
local lo = data:byte(i * 2 + 1) or 0
local hi = data:byte(i * 2 + 2) or 0
prog:write_u16(bitaddr + i * 16, lo + hi * 256)
end
return n
end
local function verify_bytes(bitaddr, data)
local n = math.floor((#data + 1) / 2)
local bad = 0
for i = 0, n - 1 do
local lo = data:byte(i * 2 + 1) or 0
local hi = data:byte(i * 2 + 2) or 0
if prog:read_u16(bitaddr + i * 16) ~= lo + hi * 256 then
bad = bad + 1
end
end
return n, bad
end
local function w32(a, v) prog:write_u32(a, v) end
local function key_step(frames, key)
if frames == 3100 then key_a:set_value(1) end
if frames == 3110 then key_a:set_value(0) end
if frames == 3120 then key_up:set_value(1) end
if frames == 3130 then key_up:set_value(0) end
if frames == 3140 then key_down:set_value(1) end
if frames == 3150 then key_down:set_value(0) end
if frames == 3160 then key_left:set_value(1) end
if frames == 3170 then key_left:set_value(0) end
if frames == 3180 then key_right:set_value(1) end
if frames == 3190 then key_right:set_value(0) end
if frames == 3200 then key_zero:set_value(1) end
if frames == 3210 then key_zero:set_value(0) end
if frames == 3220 then key_ret:set_value(1) end
if frames == 3230 then key_ret:set_value(0) end
if frames == 3240 then key_del:set_value(1) end
if frames == 3250 then key_del:set_value(0) end
end
local function r32(a)
local ok, v = pcall(function() return prog:read_u32(a) end)
if ok then return v end
return 0xDEADBEEF
end
local loader = slurp(BIN)
local coff = slurp(COFF)
local app = parse_coff(coff)
print(string.format("LOADER: payload %s (%d B) -> bit %s", BIN, #loader, hex(LOADER_BASE)))
print(string.format("LOADER: COFF %s (%d B) -> bit %s", COFF, #coff, hex(BUF)))
print(string.format("LOADER: file magic=%04X nscns=%d opthdr=%d optmagic=%s entry=%s textstart=%s",
app.magic, app.nscns, app.opthdr,
app.optmagic and string.format("%04X", app.optmagic) or "none",
hex(app.entry or 0), hex(app.textstart or 0)))
for _, s in ipairs(app.sections) do
print(string.format("LOADER: sec %-8s paddr=%s size=%d bits (%d B) scnptr=%#x flags=%#x",
s.name, hex(s.paddr), s.size, math.floor(s.size / 8), s.scnptr, s.flags))
end
local TRACE = os.getenv("LOADER_TRACE") == "1"
local frames = 0
local injected = false
local done = false
local last_count = -1
local function status_name(v)
local t = {
[0] = "OK",
[1] = "bad descriptor",
[2] = "truncated COFF / section headers",
[3] = "bad COFF magic",
[4] = "section size not whole words",
[5] = "target outside RAM",
[6] = "target overlaps loader page or COFF buffer",
[7] = "relocation records present (unsupported)",
[8] = "target not in a free-list block",
[9] = "no entry point",
}
return t[v] or ("error " .. tostring(v))
end
local function result_dump()
local st = r32(RESULT + 0x000)
print(string.format(
"LOADER: result status=%d (%s) entry=%s text=%s/%d bits data=%s/%d bits bss=%s/%d bits relocs=%d pcb=%s nscns=%d len=%d",
st, status_name(st), hex(r32(RESULT + 0x020)),
hex(r32(RESULT + 0x040)), r32(RESULT + 0x060),
hex(r32(RESULT + 0x080)), r32(RESULT + 0x0A0),
hex(r32(RESULT + 0x0C0)), r32(RESULT + 0x0E0),
r32(RESULT + 0x100), hex(r32(RESULT + 0x120)),
r32(RESULT + 0x140), r32(RESULT + 0x160)))
end
local function inject()
-- 1. loader itself
local n, bad = 0, 0
poke_bytes(LOADER_BASE, loader)
n, bad = verify_bytes(LOADER_BASE, loader)
print(string.format("LOADER: loader poked %d words, readback %d bad at %s",
n, bad, hex(LOADER_BASE)))
-- 2. COFF image
poke_bytes(BUF, coff)
n, bad = verify_bytes(BUF, coff)
print(string.format("LOADER: COFF poked %d words, readback %d bad at %s",
n, bad, hex(BUF)))
-- 3. pre-fill every .bss section with A5A5, so a loaded zero is meaningful
for _, s in ipairs(app.sections) do
if s.flags & 0x80 ~= 0 then
for i = 0, math.floor(s.size / 16) - 1 do
prog:write_u16(s.paddr + i * 16, 0xA5A5)
end
print(string.format("LOADER: pre-filled .bss %s..%s with A5A5",
hex(s.paddr), hex(s.paddr + s.size)))
end
end
-- 4. descriptor: magic "LD" "R1", buf, len, mode=0 (spin)
w32(DESC + 0x00, 0)
prog:write_u16(DESC + 0x00, 0x4C44)
prog:write_u16(DESC + 0x10, 0x5231)
w32(DESC + 0x20, BUF)
w32(DESC + 0x40, #coff)
w32(DESC + 0x60, MODE)
print(string.format("LOADER: descriptor @%s magic=%04X/%04X buf=%s len=%d mode=%d",
hex(DESC), prog:read_u16(DESC + 0x00), prog:read_u16(DESC + 0x10),
hex(r32(DESC + 0x20)), r32(DESC + 0x40), r32(DESC + 0x60)))
-- 5. return stub. mode 0 ignores it (the loader jumps to ORIG_PC
-- itself); mode 1 returns here, and the stub resumes the interrupted
-- PC so the caller yields and the scheduler can run the child.
local orig_pc = cpu.state['PC'].value
if MODE == 1 then
prog:write_u16(RETURN_STUB, 0xC080) -- jauc <orig_pc>
prog:write_u16(RETURN_STUB + 0x10, orig_pc & 0xFFFF)
prog:write_u16(RETURN_STUB + 0x20, math.floor(orig_pc / 0x10000) & 0xFFFF)
else
prog:write_u16(RETURN_STUB, 0xC0FF) -- jruc self
end
-- 6. enter the loader. A8=0 selects the fixed descriptor; SP points at
-- the return slot so mode=1 would return to the spin stub.
-- Leave SP alone for mode 0: the loader pushes onto the current
-- process stack, then restores it and resumes at ORIG_PC. (mode 1
-- would use the return stub.)
w32(0x01882A20, orig_pc) -- LD_ORIG_PC
print(string.format("LOADER: will resume at %s after create_process", hex(orig_pc)))
cpu.state['A8'].value = A8DESC and DESC or 0
if MODE == 1 then
-- Simulate a CALLA from the current process: push the return
-- address on the *firmware* stack (a real transport would do this).
local sp = cpu.state['SP'].value - 0x20
w32(sp, RETURN_STUB)
cpu.state['SP'].value = sp
end
cpu.state['PC'].value = LOADER_BASE
injected = true
print(string.format("LOADER: frame %d: entered loader at %s (caller SP=%s)",
frames, hex(LOADER_BASE), hex(cpu.state['SP'].value)))
end
local function inspect()
result_dump()
-- Verify the placement from RAM: .text/.data must equal the file bytes.
for _, s in ipairs(app.sections) do
if s.scnptr ~= 0 and s.size > 0 then
local nb = math.floor(s.size / 8)
local bytes = coff:sub(s.scnptr + 1, s.scnptr + nb)
local _, bad = verify_bytes(s.paddr, bytes)
print(string.format("LOADER: placed %s at %s: %d bytes, %d differing",
s.name, hex(s.paddr), nb, bad))
end
end
local base = COFF:match("([^/]+)$") or COFF
if base:find("marker") then
print(string.format("LOADER: marker app: start=%s data=%s data2=%s bss=%s count=%d",
hex(r32(0x018E0000)), hex(r32(0x018E0020)), hex(r32(0x018E0040)),
hex(r32(0x018E0060)), r32(0x018E0080)))
elseif base:find("xhello") then
print(string.format("LOADER: xhello: stage=%d strlen=%d display=%s root=%s window=%s sync=%s",
r32(0x01890140), r32(0x01890160), hex(r32(0x01890100)),
hex(r32(0x01890110)), hex(r32(0x01890120)), hex(r32(0x01890130))))
end
if base:find("input") then
local n = r32(INPUT_MARK + 0x40)
local t = {}
for i = 0, n - 1 do t[#t + 1] = string.format("%02X", r32(INPUT_MARK + (3 + i) * 0x20)) end
print(string.format("INPUT: magic=%08X updates=%d n=%d bytes=%s",
r32(INPUT_MARK), r32(INPUT_MARK + 0x20), n, table.concat(t, " ")))
end
print(string.format("LOADER: PC at inspection = %s", hex(cpu.state['PC'].value)))
end
emu.register_frame_done(function()
frames = frames + 1
if frames == 2900 then tabx:set_value(700); taby:set_value(500); print("INPUT: tablet move") end
if frames == 3000 then tabb:set_value(1); print("INPUT: click down") end
if frames == 3020 then tabb:set_value(0); print("INPUT: click up") end
key_step(frames, nil)
if frames == AT and not injected then
inject()
if TRACE then dbg:command("trace /tmp/opencode/ld1.tr") end
end
if injected and TRACE and frames == AT + 1 then
dbg:command("trace off")
print("LOADER: trace written to /tmp/opencode/ld.tr")
end
if injected and not done then
if TRACE and frames <= AT + 40 then
print(string.format("LOADER: trace f=%d PC=%s SP=%s A14=%s status=%s entry=%s",
frames, hex(cpu.state['PC'].value), hex(cpu.state['SP'].value),
hex(cpu.state['A14'].value), hex(r32(RESULT + 0x000)),
hex(r32(RESULT + 0x020))))
end
local st = r32(RESULT + 0x000)
-- status 0 means OK; nonzero is final too once parsing has begun
if st ~= 0xFFFFFFFF and not done then
-- The loader writes 0 on success. A nonzero status is final
-- only after it has been written once (it is 0 from power-on,
-- so require the loader to have run: PC no longer at entry or
-- the app counter moved).
end
if VERBOSE and frames % 25 == 0 then
result_dump()
end
if base_contains_marker then
local c = r32(0x018E0080)
if c ~= last_count then
if last_count ~= -1 then
print(string.format("LOADER: marker counter %d -> %d (child running)",
last_count, c))
end
last_count = c
end
end
end
if frames >= ENDF then
if injected then
done = true
inspect()
if SNAP then
local screen = nil
for _, s in pairs(machine.screens) do screen = s break end
if screen then
local out = OUT .. "/loader_frame" .. frames .. ".png"
local ok, err = pcall(function() return screen:snapshot(out) end)
print(string.format("LOADER: snapshot %s ok=%s %s",
out, tostring(ok), tostring(err or "")))
end
end
end
machine:exit()
end
end, "vt1200-loader")
-- (Lua has no forward use of a name defined later; set a small flag here.)
base_contains_marker = (COFF:match("([^/]+)$") or ""):find("marker") ~= nil
dbg.visible_cpu = cpu
dbg.execution_state = 'run'
+27
View File
@@ -0,0 +1,27 @@
#!/bin/sh
# input.sh -- Task 4 acceptance: main.c's key map against injected keys.
set -eu
DIR=$(cd "$(dirname "$0")" && pwd)
APP=$(cd "$DIR/.." && pwd)
ROOT=$(cd "$APP/../.." && pwd)
M=${MAME:-/home/arti/code/k-space/mame0289/vt1200}
LOG="$APP/build/input.log"
mkdir -p "$APP/build"
"$APP/build.sh" "$DIR/input.c" "$APP/src/vt1200/main.c" "$APP/src/vt1200/x11.c" "$APP/src/vt1200/xgfix.c" >"$APP/build/input-build.log" 2>&1
MARK=$(awk '/_mark/ {print $1; exit}' "$APP/build/input.map")
VT1200_SKIP_LEVEL1=1 INPUT_MARK="0x$MARK" \
LOADER_AT=2500 LOADER_END=3400 \
LOADER_BIN="$ROOT/dwt/loader/build/loader.bin" \
LOADER_COFF="$APP/build/input.coff" \
LOADER_OUT="$APP/build" \
"$M" vt1200 -rompath "$ROOT/harness/mame/roms" \
-video none -sound none -nothrottle -skip_gameinfo \
-debug -debugger none \
-autoboot_script "$DIR/input.lua" -autoboot_delay 0 \
>"$LOG" 2>&1 || true
grep 'INPUT:' "$LOG" | tail -3
grep -q 'INPUT: .*bytes=.*61 9B 41 9B 42 9B 44 9B 43 30 0A 7F' "$LOG" || {
echo "input.sh: mapped key sequence missing (see $LOG)" >&2
exit 1
}
echo "input: PASS"