testpico: print hv counter, some tweaks

diff --git a/testpico/main.c b/testpico/main.c
index 80d1660..b4a65c8 100644 (file)
--- a/testpico/main.c
+++ b/testpico/main.c
@@ -346,10 +346,11 @@ void exception(const struct exc_frame *f)
         printf("  PC: %08x SR: %04x            \n", f->g.pc, f->g.sr);
         sp_add = 6;
     }
-    for (i = 0; i < 8; i++)
+    sp = (u32 *)(f->ar[7] + sp_add);
+    for (i = 0; i < 7; i++)
         printf("  D%d: %08x A%d: %08x    \n", i, f->dr[i], i, f->ar[i]);
+    printf("  D%d: %08x SP: %08x    \n", i, f->dr[i], (u32)sp);
     printf("                               \n");
-    sp = (u32 *)(f->ar[7] + sp_add);
     printf(" %08x %08x %08x %08x\n", sp[0], sp[1], sp[2], sp[3]);
     printf(" %08x %08x %08x %08x\n", sp[4], sp[5], sp[6], sp[7]);
 }
@@ -404,6 +405,14 @@ static void vdp_wait_for_line_0(void)
         ;
 }
 
+static void wait_next_vsync(void)
+{
+    while (read16(VDP_CTRL_PORT) & SR_VB)
+        /* blanking */;
+    while (!(read16(VDP_CTRL_PORT) & SR_VB))
+        /* not blanking */;
+}
+
 static void t_dma_zero_wrap_early(void)
 {
     const u32 *src = (const u32 *)0x3c0000;
@@ -1821,14 +1830,17 @@ static int t_32x_reset_btn(void)
     expect(ok, r32[0x28/4], 0x5a5a5a28);
     expect(ok, r32[0x2c/4], 0x07075a2c); // 7 - last_irq_vec
     if (!(r16[0x00/2] & 0x8000)) {
-        expect(ok, r8 [0x81], 0);
-        expect(ok, r16[0x82/2], 0);
-        expect(ok, r16[0x84/2], 0);
-        expect(ok, r16[0x86/2], 0);
-        //expect(ok, r16[0x88/2], 0); // triggers fill?
+        expect(ok, r8 [0x81], 1);
+        expect(ok, r16[0x82/2], 1);
+        expect(ok, r16[0x84/2], 0xff);
+        expect(ok, r16[0x86/2], 0xffff);
+        expect(ok, r16[0x88/2], 0);
         expect(ok, r8 [0x8b] & ~2, 0); // FEN toggles periodically?
         expect(ok, r16[0x8c/2], 0);
         expect(ok, r16[0x8e/2], 0);
+        // setup vdp for t_32x_init
+        r8 [0x81] = 0;
+        r16[0x82/2] = r16[0x84/2] = r16[0x86/2] = 0;
     }
     r32[0x20/4] = r32[0x24/4] = r32[0x28/4] = r32[0x2c/4] = 0;
     for (s = 0; s < 2; s++)
@@ -2174,7 +2186,8 @@ static int t_32x_reg_w(void)
 // prepare for reset btn press tests
 static int t_32x_reset_prep(void)
 {
-    u32 *fbl_icnt = (u32 *)(0x840000 + IRQ_CNT_FB_BASE);
+    u32 *fbl = (u32 *)0x840000;
+    u32 *fbl_icnt = fbl + IRQ_CNT_FB_BASE / 4;
     u32 *r32 = (u32 *)0xa15100;
     u16 *r16 = (u16 *)r32;
     u8 *r8 = (u8 *)r32;
@@ -2204,6 +2217,21 @@ static int t_32x_reset_prep(void)
     r32[0x24/4] = 0x5a5a5a24;
     r32[0x28/4] = 0x5a5a5a28;
     r32[0x2c/4] = 0x5a5a5a2c;
+    if (!(r16[0x00/2] & 0x8000)) {
+        wait_next_vsync();
+        r16[0x8a/2] = 0x0001;
+        mem_barrier();
+        for (i = 0; i < 220/2; i++)
+            fbl[i] = 0;
+        r8 [0x81] = 1;
+        r16[0x82/2] = 0xffff;
+        r16[0x84/2] = 0xffff;
+        r16[0x86/2] = 0xffff;
+        r16[0x8a/2] = 0x0000;
+        r16[0x8c/2] = 0xffff;
+        r16[0x8e/2] = 0xffff;
+        r16[0x100/2] = 0;
+    }
     return ok;
 }
 
@@ -2314,14 +2342,6 @@ static void setup_z80(void)
         ;
 }
 
-static void wait_next_vsync(void)
-{
-    while (read16(VDP_CTRL_PORT) & SR_VB)
-        /* blanking */;
-    while (!(read16(VDP_CTRL_PORT) & SR_VB))
-        /* not blanking */;
-}
-
 static unused int hexinc(char *c)
 {
     (*c)++;
@@ -2415,6 +2435,12 @@ int main()
         (v8 & 0x40) ? "pal" : "ntsc",
         have_32x ? "32X" : "",
         en_32x ? "+" : "");
+    printf("reset hvc %04x->%04x\n", read16(-4), read16(-2));
+
+    // sanity check
+    extern u32 sh2_test[];
+    if (sh2_test[0] != read32(0x3e0) || sh2_test[0x200/4] != read32(0x3e4))
+        printf("bad 0x3c0 tab\n");
 
     for (i = 0; i < ARRAY_SIZE(g_tests); i++) {
         // print test number if we haven't scrolled away
@@ -2450,7 +2476,7 @@ int main()
     printf_ypos = 0;
     printf("     ");
 
-    if (have_32x) {
+    if (have_32x && (read16(0xa15100) & 1)) {
         u8 *p = (u8 *)0xff0040;
         u32 len = x32x_switch_rv_end - x32x_switch_rv;
         px32x_switch_rv = (void *)p; p += len;
@@ -2464,14 +2490,18 @@ int main()
         // todo: broken printf
         px32x_switch_rv(0);
     }
-    for (i = 0; i < 60*60 && !(pget_input() & BTNM_A); i++)
-        wait_next_vsync();
+    for (i = 0; i < 60*60 && !(pget_input() & BTNM_A); i++) {
+        while (read16(VDP_CTRL_PORT) & SR_VB)
+            write16(-4, read16(VDP_HV_COUNTER)); /* blanking */
+        while (!(read16(VDP_CTRL_PORT) & SR_VB))
+            write16(-4, read16(VDP_HV_COUNTER)); /* not blanking */;
+    }
 #ifndef PICO
     // blank due to my lame tv being burn-in prone
     VDP_setReg(VDP_MODE2, VDP_MODE2_MD);
 #endif
     while (!(pget_input() & BTNM_A))
-        burn10(488*100/10);
+        write16(-4, read16(VDP_HV_COUNTER));
     VDP_setReg(VDP_MODE2, VDP_MODE2_MD | VDP_MODE2_DMA | VDP_MODE2_DISP);
 
 

diff --git a/testpico/sega_gcc.s b/testpico/sega_gcc.s
index 52c9f8a..4abb418 100644 (file)
--- a/testpico/sega_gcc.s
+++ b/testpico/sega_gcc.s
@@ -112,20 +112,22 @@ exc_tab:
     .word 0x5100,0x3340,0x0006,0x303C,0x8000,0x6004,0x44FC,0x0001\r
 \r
 RST:\r
-    move.w  #0x2600, %sr\r
-\r
-    move.b (0xA10001), %d0\r
-    andi.b #0x0F, %d0\r
-    beq.s 0f\r
-    move.l  #0x53454741, (0xA14000) /* 'SEGA' */\r
+    andi.b  #0x0F, (0xA10001)       /* 24 */\r
+    bne.s   0f                      /* 10 */\r
+    move.w  #0x8104, (0xc00004)\r
+    bra     1f\r
 0:\r
-    tst.w   (0xc00004).l\r
+    move.l  #0x53454741, (0xA14000) /* 28 'SEGA' */\r
+1:\r
+    move.w  (0xc00008), %d0         /* 16 */\r
+    move.w  %d0, -(%sp)\r
+    subq.l  #2, %sp\r
+    move    %sp, %usp\r
 \r
-    moveq   #0, %d0\r
-    movea.l %d0, %a7\r
-    move    %a7, %usp\r
+    move.w  #0x2600, %sr\r
 \r
     /* clear .bss */\r
+    moveq.l #0, %d0\r
     lea     __bss_start, %a0\r
     lea     __end, %a1\r
 0:\r
@@ -162,9 +164,9 @@ ram_rv_switch_end:
 pre_exception:\r
     move.w  #0x2700, %sr\r
     movem.l %d0-%d7/%a0-%a7,-(%sp)\r
-    add.w   #2, 0x3e(%sp)\r
+    add.w   #2, 0x3e(%sp)   /* ecxnum */\r
     move.l  %sp, %d0\r
-    move.l  %d0,-(%sp)  /* arg0 */\r
+    move.l  %d0,-(%sp)      /* arg0 */\r
     jsr     exception\r
 0:\r
     bra     0b\r

diff --git a/testpico/sh2_test.sh2 b/testpico/sh2_test.sh2
index 0201827..d72f083 100644 (file)
--- a/testpico/sh2_test.sh2
+++ b/testpico/sh2_test.sh2
@@ -29,6 +29,7 @@
         .long   master_irq4 /* Command interupt */
         .long   master_irq5 /* H Blank interupt */
         .long   master_irq6 /* V Blank interupt */
+!        .long   main_irq_vres
         .long   master_irq7 /* Reset Button */
 .rept 56
         .long   master_err  /* peripherals */
@@ -112,6 +113,9 @@ do_irq_master:
         mov.l   r1, @-r15
         mov.l   l_irq_cnt, r1  /* counters in fb (0x2401ff00) */
 
+! According to "32X Technical Information Attachment 1" FTOA pin must be toggled
+! or interrupts may be missed when multiple irqs trigger. We skip that here since
+! we test only 1 irq at a time.
 do_irq_cmn:
         mov.l   r2, @-r15
         mov     #0x80, r0
@@ -140,7 +144,7 @@ do_irq_cmn:
 
 ! not used
 .if 0
-main_irq_vres_:
+main_irq_vres:
         mov.w   r0, @(0x14, gbr)  /* ack */
         mov.b   @(7, gbr), r0     /* RV */
         tst     #1, r0
@@ -159,7 +163,7 @@ main_irq_vres_:
         mov.b   r0, @(5, r1) /* OCRB L */
         mov.b   r0, @(2, r1) /* FRC H */
         mov.b   r0, @(3, r1) /* FRC L */
-        mov.b   @(7, r1), r0
+        mov.b   @(3, r1), r0
 ! sleep - docs say not to use
 !        sleep
 0: