From: notaz <notasas@gmail.com>
Date: Fri, 10 May 2024 22:31:00 +0000 (+0300)
Subject: testpico: show that vres clear is separate
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=megadrive.git;a=commitdiff_plain

testpico: show that vres clear is separate
---

diff --git a/testpico/common.h b/testpico/common.h
index ce02a51..665b295 100644
--- a/testpico/common.h
+++ b/testpico/common.h
@@ -37,6 +37,8 @@ enum x32x_cmd {
     CMD_WRITE32 = 8,
     CMD_GETGBR = 9,
     CMD_GETVBR = 10,
+    CMD_GETSR = 11,
+    CMD_SETSR = 12,
 };
 
 // vim:ts=4:sw=4:expandtab
diff --git a/testpico/main.c b/testpico/main.c
index b4a65c8..43da6e6 100644
--- a/testpico/main.c
+++ b/testpico/main.c
@@ -1828,7 +1828,7 @@ static int t_32x_reset_btn(void)
     expect(ok, r32[0x20/4], 0x00005a20);
     expect(ok, r32[0x24/4], 0x5a5a5a24);
     expect(ok, r32[0x28/4], 0x5a5a5a28);
-    expect(ok, r32[0x2c/4], 0x07075a2c); // 7 - last_irq_vec
+    expect(ok, r32[0x2c/4], 0x075a5a2c); // 7 - last_irq_vec
     if (!(r16[0x00/2] & 0x8000)) {
         expect(ok, r8 [0x81], 1);
         expect(ok, r16[0x82/2], 1);
@@ -1858,7 +1858,18 @@ static int t_32x_reset_btn(void)
         expect(ok, s_icnt[i], 0x100);
     }
     expect(ok, m_icnt[7], 0x101); // VRES happened
+    expect(ok, s_icnt[7], 0x100); // masked on slave
+
+    x32_cmd(CMD_GETSR, 0, 0, 1);
+    expect_sh2(ok, 1, r32[0x24/4] & ~1, 0xf0); // still masked
+    x32_cmd(CMD_SETSR, 0x10, 0, 1);
+    expect(ok, r16[0x00/2], 0x8083);
+    write8(r8, 0x00); // FM=0
+    mem_barrier();
+    expect(ok, m_icnt[7], 0x101);
     expect(ok, s_icnt[7], 0x101);
+    expect(ok, r32[0x2c/4], 0x00070000); // 7 - last_irq_vec
+    r32[0x2c/4] = 0;
 
     memcpy_(do_32x_disable, x32x_disable,
             x32x_disable_end - x32x_disable);
@@ -2202,6 +2213,7 @@ static int t_32x_reset_prep(void)
         write32(&fbl_icnt[i], 0x01000100);
     x32_cmd(CMD_WRITE8, 0x20004001, 0x02, 0); // unmask cmd
     x32_cmd(CMD_WRITE8, 0x20004001, 0x02, 1); // unmask slave
+    x32_cmd(CMD_SETSR, 0xf0, 0, 1);           // mask slave irqs (on the cpu)
     burn10(10);
     write8(r8, 0x00); // FM=0
     expect(ok, r32[0x2c/4], 0);
diff --git a/testpico/sh2_main.c b/testpico/sh2_main.c
index 1bd9b90..303fe3f 100644
--- a/testpico/sh2_main.c
+++ b/testpico/sh2_main.c
@@ -59,13 +59,21 @@ static void do_cmd(u16 cmd, u16 r[6], u32 is_slave)
         write32(a, d);
         break;
     case CMD_GETGBR:
-        asm("stc gbr, %0" : "=r"(d));
+        asm volatile("stc gbr, %0" : "=r"(d));
         write32(&rl[4/4], d);
         break;
     case CMD_GETVBR:
-        asm("stc vbr, %0" : "=r"(d));
+        asm volatile("stc vbr, %0" : "=r"(d));
         write32(&rl[4/4], d);
         break;
+    case CMD_GETSR:
+        asm volatile("stc sr, %0" : "=r"(d));
+        write32(&rl[4/4], d);
+        break;
+    case CMD_SETSR:
+        d = read32(&rl[4/4]);
+        asm volatile("ldc %0, sr" :: "r"(d));
+        break;
     default:
         r[2/2]++; // error
         mem_barrier();