From 7449b889b89e674e2b2b2ea3e2eea7c4aa57ff72 Mon Sep 17 00:00:00 2001 From: notaz Date: Fri, 10 May 2024 01:34:09 +0300 Subject: [PATCH] testpico: print hv counter, some tweaks --- testpico/main.c | 70 ++++++++++++++++++++++++++++++------------- testpico/sega_gcc.s | 26 ++++++++-------- testpico/sh2_test.sh2 | 8 +++-- 3 files changed, 70 insertions(+), 34 deletions(-) diff --git a/testpico/main.c b/testpico/main.c index 80d1660..b4a65c8 100644 --- 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 --- 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 RST: - move.w #0x2600, %sr - - move.b (0xA10001), %d0 - andi.b #0x0F, %d0 - beq.s 0f - move.l #0x53454741, (0xA14000) /* 'SEGA' */ + andi.b #0x0F, (0xA10001) /* 24 */ + bne.s 0f /* 10 */ + move.w #0x8104, (0xc00004) + bra 1f 0: - tst.w (0xc00004).l + move.l #0x53454741, (0xA14000) /* 28 'SEGA' */ +1: + move.w (0xc00008), %d0 /* 16 */ + move.w %d0, -(%sp) + subq.l #2, %sp + move %sp, %usp - moveq #0, %d0 - movea.l %d0, %a7 - move %a7, %usp + move.w #0x2600, %sr /* clear .bss */ + moveq.l #0, %d0 lea __bss_start, %a0 lea __end, %a1 0: @@ -162,9 +164,9 @@ ram_rv_switch_end: pre_exception: move.w #0x2700, %sr movem.l %d0-%d7/%a0-%a7,-(%sp) - add.w #2, 0x3e(%sp) + add.w #2, 0x3e(%sp) /* ecxnum */ move.l %sp, %d0 - move.l %d0,-(%sp) /* arg0 */ + move.l %d0,-(%sp) /* arg0 */ jsr exception 0: bra 0b diff --git a/testpico/sh2_test.sh2 b/testpico/sh2_test.sh2 index 0201827..d72f083 100644 --- 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: -- 2.39.2