// rsrcProbe.c - Phase 3.4 stub-only Resource Manager smoke probe.
//
// What this verifies right now:
//   - resourceProbeInit() returns RES_ERR_BLOCKED (the stub-only path),
//   - iigsLoadResource() returns NULL with err = RES_ERR_BLOCKED,
//   - iigsGetResourceSize() returns 0 with err = RES_ERR_BLOCKED,
//   - the runtime resource.o links cleanly under -O2,
//   - the demo's OMF can be bundled with rsrcBundle.py (post-step in
//     demos/build.sh when demos/rsrcProbe.rsrc/ is present).
//
// Marker discipline.  Page-1 ($70..$73) per the cursorProbe.c
// convention - runViaFinder.sh samples direct-page bytes reliably
// across MAME timings, and full-24-bit BSS-style markers (0x025000)
// don't survive the Loader/Finder relocation games on GS/OS 6.0.2.
//
//   $70 := 0x99   end-of-main success sentinel
//   $71 := initRc as int8  (expected 0xff = (uint8_t)RES_ERR_BLOCKED)
//   $72 := loadErr  (expected 0xff)
//   $73 := 0x01 if resourceRuntimeEnabled()==0 (today's stub answer)
//
// Build:   bash demos/build.sh rsrcProbe
// Run:     bash scripts/runViaFinder.sh demos/rsrcProbe.omf \
//              --check 0x70=0x99
// runViaFinder LAUNCHES the OMF and samples at frame 6000; no keypress
// is required because we drop into while(1) immediately after writing
// the markers.

#include <stdint.h>

#include "iigs/resource.h"


int main(void) {
    volatile uint8_t *mark0 = (volatile uint8_t *)0x70;
    volatile uint8_t *mark1 = (volatile uint8_t *)0x71;
    volatile uint8_t *mark2 = (volatile uint8_t *)0x72;
    volatile uint8_t *mark3 = (volatile uint8_t *)0x73;

    *mark0 = 0x10;       // entry sentinel: we did reach main()
    int initRc = resourceProbeInit();
    *mark1 = (uint8_t)initRc;

    int loadErr = 0;
    void **h = iigsLoadResource(RES_TYPE_RTEXT, 1, &loadErr);
    (void)h;
    *mark2 = (uint8_t)loadErr;

    int sizeErr = 0;
    uint32_t sz = iigsGetResourceSize(RES_TYPE_RTEXT, 1, &sizeErr);
    (void)sz;

    *mark3 = (uint8_t)(resourceRuntimeEnabled() == 0 ? 0x01 : 0x00);

    // Success marker last - if any of the calls above trapped (which
    // they shouldn't in stub-only mode), the harness will see $70
    // != 0x99 and report failure.
    *mark0 = 0x99;

    while (1) {
    }
    return 0;
}