mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
32x: memhandler improvements
- use consistent read tables (with write) - use sh2 ptr instead of id - place data_array/peri_regs in sh2 struct
This commit is contained in:
notaz
parent
c1931173ab
commit
f81107f590
11 changed files with 224 additions and 223 deletions
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@ -73,9 +73,9 @@ void Pico32xStartup(void)
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// TODO: OOM handling
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PicoAHW |= PAHW_32X;
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sh2_init(&msh2, 0);
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sh2_init(&msh2, 0, &ssh2);
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msh2.irq_callback = sh2_irq_cb;
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sh2_init(&ssh2, 1);
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sh2_init(&ssh2, 1, &msh2);
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ssh2.irq_callback = sh2_irq_cb;
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PicoMemSetup32x();
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@ -85,8 +85,8 @@ void Pico32xStartup(void)
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if (!Pico.m.pal)
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Pico32x.vdp_regs[0] |= P32XV_nPAL;
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PREG8(Pico32xMem->sh2_peri_regs[0], 4) =
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PREG8(Pico32xMem->sh2_peri_regs[1], 4) = 0x84; // SCI SSR
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PREG8(msh2.peri_regs, 4) =
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PREG8(ssh2.peri_regs, 4) = 0x84; // SCI SSR
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rendstatus_old = -1;
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@ -339,7 +339,7 @@ static inline void run_sh2(SH2 *sh2, int m68k_cycles)
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// note: recursive call
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void p32x_sync_other_sh2(SH2 *sh2, unsigned int m68k_target)
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{
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SH2 *osh2 = &sh2s[sh2->is_slave ^ 1];
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SH2 *osh2 = sh2->other_sh2;
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int left_to_event;
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int m68k_cycles;
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@ -432,17 +432,18 @@ static void p32x_vdp_write16(u32 a, u32 d, SH2 *sh2)
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// ------------------------------------------------------------------
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// SH2 regs
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static u32 p32x_sh2reg_read16(u32 a, int cpuid)
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static u32 p32x_sh2reg_read16(u32 a, SH2 *sh2)
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{
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u16 *r = Pico32x.regs;
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a &= 0xfe; // ?
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switch (a) {
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case 0x00: // adapter/irq ctl
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return (r[0] & P32XS_FM) | Pico32x.sh2_regs[0] | Pico32x.sh2irq_mask[cpuid];
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return (r[0] & P32XS_FM) | Pico32x.sh2_regs[0]
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| Pico32x.sh2irq_mask[sh2->is_slave];
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case 0x04: // H count (often as comm too)
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sh2_poll_detect(&sh2s[cpuid], a, SH2_STATE_CPOLL);
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sh2s_sync_on_read(&sh2s[cpuid]);
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sh2_poll_detect(sh2, a, SH2_STATE_CPOLL);
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sh2s_sync_on_read(sh2);
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return Pico32x.sh2_regs[4 / 2];
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case 0x10: // DREQ len
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return r[a / 2];
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@ -457,22 +458,22 @@ static u32 p32x_sh2reg_read16(u32 a, int cpuid)
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if (Pico32x.comm_dirty_68k & comreg)
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Pico32x.comm_dirty_68k &= ~comreg;
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else
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sh2_poll_detect(&sh2s[cpuid], a, SH2_STATE_CPOLL);
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sh2s_sync_on_read(&sh2s[cpuid]);
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sh2_poll_detect(sh2, a, SH2_STATE_CPOLL);
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sh2s_sync_on_read(sh2);
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return r[a / 2];
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}
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if ((a & 0x30) == 0x30) {
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return p32x_pwm_read16(a, &sh2s[cpuid], sh2_cycles_done_m68k(&sh2s[cpuid]));
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return p32x_pwm_read16(a, sh2, sh2_cycles_done_m68k(sh2));
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}
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return 0;
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}
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static void p32x_sh2reg_write8(u32 a, u32 d, int cpuid)
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static void p32x_sh2reg_write8(u32 a, u32 d, SH2 *sh2)
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{
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a &= 0xff;
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sh2s[cpuid].poll_addr = 0;
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sh2->poll_addr = 0;
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switch (a) {
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case 0: // FM
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@ -482,20 +483,20 @@ static void p32x_sh2reg_write8(u32 a, u32 d, int cpuid)
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case 1: // HEN/irq masks
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if ((d ^ Pico32x.sh2_regs[0]) & 0x80)
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elprintf(EL_ANOMALY|EL_32X, "HEN");
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Pico32x.sh2irq_mask[cpuid] = d & 0x8f;
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Pico32x.sh2irq_mask[sh2->is_slave] = d & 0x8f;
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Pico32x.sh2_regs[0] &= ~0x80;
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Pico32x.sh2_regs[0] |= d & 0x80;
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if (d & 1)
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p32x_pwm_schedule_sh2(&sh2s[cpuid]);
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p32x_update_irls(&sh2s[cpuid], 0);
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p32x_pwm_schedule_sh2(sh2);
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p32x_update_irls(sh2, 0);
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return;
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case 5: // H count
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d &= 0xff;
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if (Pico32x.sh2_regs[4 / 2] != d) {
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Pico32x.sh2_regs[4 / 2] = d;
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p32x_sh2_poll_event(&sh2s[cpuid ^ 1], SH2_STATE_CPOLL,
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sh2_cycles_done_m68k(&sh2s[cpuid]));
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sh2_end_run(&sh2s[cpuid], 4);
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p32x_sh2_poll_event(sh2->other_sh2, SH2_STATE_CPOLL,
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sh2_cycles_done_m68k(sh2));
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sh2_end_run(sh2, 4);
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}
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return;
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}
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@ -508,19 +509,19 @@ static void p32x_sh2reg_write8(u32 a, u32 d, int cpuid)
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r8[a ^ 1] = d;
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p32x_m68k_poll_event(P32XF_68KCPOLL);
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p32x_sh2_poll_event(&sh2s[cpuid ^ 1], SH2_STATE_CPOLL,
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sh2_cycles_done_m68k(&sh2s[cpuid]));
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p32x_sh2_poll_event(sh2->other_sh2, SH2_STATE_CPOLL,
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sh2_cycles_done_m68k(sh2));
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comreg = 1 << (a & 0x0f) / 2;
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Pico32x.comm_dirty_sh2 |= comreg;
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return;
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}
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}
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static void p32x_sh2reg_write16(u32 a, u32 d, int cpuid)
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static void p32x_sh2reg_write16(u32 a, u32 d, SH2 *sh2)
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{
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a &= 0xfe;
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sh2s[cpuid].poll_addr = 0;
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sh2->poll_addr = 0;
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// comm
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if ((a & 0x30) == 0x20) {
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@ -530,15 +531,15 @@ static void p32x_sh2reg_write16(u32 a, u32 d, int cpuid)
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Pico32x.regs[a / 2] = d;
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p32x_m68k_poll_event(P32XF_68KCPOLL);
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p32x_sh2_poll_event(&sh2s[cpuid ^ 1], SH2_STATE_CPOLL,
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sh2_cycles_done_m68k(&sh2s[cpuid]));
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p32x_sh2_poll_event(sh2->other_sh2, SH2_STATE_CPOLL,
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sh2_cycles_done_m68k(sh2));
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comreg = 1 << (a & 0x0f) / 2;
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Pico32x.comm_dirty_sh2 |= comreg;
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return;
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}
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// PWM
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else if ((a & 0x30) == 0x30) {
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p32x_pwm_write16(a, d, &sh2s[cpuid], sh2_cycles_done_m68k(&sh2s[cpuid]));
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p32x_pwm_write16(a, d, sh2, sh2_cycles_done_m68k(sh2));
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return;
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}
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@ -550,18 +551,18 @@ static void p32x_sh2reg_write16(u32 a, u32 d, int cpuid)
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case 0x14: Pico32x.sh2irqs &= ~P32XI_VRES; goto irls;
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case 0x16: Pico32x.sh2irqs &= ~P32XI_VINT; goto irls;
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case 0x18: Pico32x.sh2irqs &= ~P32XI_HINT; goto irls;
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case 0x1a: Pico32x.sh2irqi[cpuid] &= ~P32XI_CMD; goto irls;
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case 0x1a: Pico32x.sh2irqi[sh2->is_slave] &= ~P32XI_CMD; goto irls;
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case 0x1c:
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Pico32x.sh2irqs &= ~P32XI_PWM;
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p32x_pwm_schedule_sh2(&sh2s[cpuid]);
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p32x_pwm_schedule_sh2(sh2);
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goto irls;
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}
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p32x_sh2reg_write8(a | 1, d, cpuid);
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p32x_sh2reg_write8(a | 1, d, sh2);
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return;
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irls:
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p32x_update_irls(&sh2s[cpuid], 0);
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p32x_update_irls(sh2, 0);
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}
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// ------------------------------------------------------------------
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@ -821,26 +822,25 @@ static void m68k_write8_dram1_ow(u32 a, u32 d)
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sh2_write8_dramN(1);
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}
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#define sh2_write16_dramN(n, ret) \
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#define sh2_write16_dramN(n) \
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u16 *pd = &Pico32xMem->dram[n][(a & 0x1ffff) / 2]; \
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if (!(a & 0x20000)) { \
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*pd = d; \
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return ret; \
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return; \
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} \
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/* overwrite */ \
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if (!(d & 0xff00)) d |= *pd & 0xff00; \
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if (!(d & 0x00ff)) d |= *pd & 0x00ff; \
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*pd = d; \
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return ret
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*pd = d;
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static void m68k_write16_dram0_ow(u32 a, u32 d)
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{
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sh2_write16_dramN(0,);
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sh2_write16_dramN(0);
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}
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static void m68k_write16_dram1_ow(u32 a, u32 d)
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{
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sh2_write16_dramN(1,);
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sh2_write16_dramN(1);
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}
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// -----------------------------------------------------------------
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@ -898,33 +898,33 @@ static void bank_switch(int b)
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// -----------------------------------------------------------------
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// read8
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static u32 sh2_read8_unmapped(u32 a, int id)
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static u32 sh2_read8_unmapped(u32 a, SH2 *sh2)
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{
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elprintf(EL_UIO, "%csh2 unmapped r8 [%08x] %02x @%06x",
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id ? 's' : 'm', a, 0, sh2_pc(id));
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sh2->is_slave ? 's' : 'm', a, 0, sh2_pc(sh2));
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return 0;
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}
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static u32 sh2_read8_cs0(u32 a, int id)
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static u32 sh2_read8_cs0(u32 a, SH2 *sh2)
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{
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u32 d = 0;
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// 0x3ff00 is veridied
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if ((a & 0x3ff00) == 0x4000) {
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d = p32x_sh2reg_read16(a, id);
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d = p32x_sh2reg_read16(a, sh2);
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goto out_16to8;
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}
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if ((a & 0x3ff00) == 0x4100) {
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d = p32x_vdp_read16(a);
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sh2_poll_detect(&sh2s[id], a, SH2_STATE_VPOLL);
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sh2_poll_detect(sh2, a, SH2_STATE_VPOLL);
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goto out_16to8;
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}
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// TODO: mirroring?
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if (id == 0 && a < sizeof(Pico32xMem->sh2_rom_m))
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if (!sh2->is_slave && a < sizeof(Pico32xMem->sh2_rom_m))
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return Pico32xMem->sh2_rom_m[a ^ 1];
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if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
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if (sh2->is_slave && a < sizeof(Pico32xMem->sh2_rom_s))
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return Pico32xMem->sh2_rom_s[a ^ 1];
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if ((a & 0x3fe00) == 0x4200) {
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@ -932,7 +932,7 @@ static u32 sh2_read8_cs0(u32 a, int id)
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goto out_16to8;
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}
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return sh2_read8_unmapped(a, id);
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return sh2_read8_unmapped(a, sh2);
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out_16to8:
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if (a & 1)
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@ -941,29 +941,29 @@ out_16to8:
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d >>= 8;
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elprintf(EL_32X, "%csh2 r8 [%08x] %02x @%06x",
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id ? 's' : 'm', a, d, sh2_pc(id));
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sh2->is_slave ? 's' : 'm', a, d, sh2_pc(sh2));
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return d;
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}
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static u32 sh2_read8_da(u32 a, int id)
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static u32 sh2_read8_da(u32 a, SH2 *sh2)
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{
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return Pico32xMem->data_array[id][(a & 0xfff) ^ 1];
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return sh2->data_array[(a & 0xfff) ^ 1];
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}
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// read16
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static u32 sh2_read16_unmapped(u32 a, int id)
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static u32 sh2_read16_unmapped(u32 a, SH2 *sh2)
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{
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elprintf(EL_UIO, "%csh2 unmapped r16 [%08x] %04x @%06x",
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id ? 's' : 'm', a, 0, sh2_pc(id));
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sh2->is_slave ? 's' : 'm', a, 0, sh2_pc(sh2));
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return 0;
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}
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static u32 sh2_read16_cs0(u32 a, int id)
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static u32 sh2_read16_cs0(u32 a, SH2 *sh2)
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{
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u32 d = 0;
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if ((a & 0x3ff00) == 0x4000) {
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d = p32x_sh2reg_read16(a, id);
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d = p32x_sh2reg_read16(a, sh2);
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if (!(EL_LOGMASK & EL_PWM) && (a & 0x30) == 0x30) // hide PWM
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return d;
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goto out;
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@ -971,13 +971,13 @@ static u32 sh2_read16_cs0(u32 a, int id)
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if ((a & 0x3ff00) == 0x4100) {
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d = p32x_vdp_read16(a);
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sh2_poll_detect(&sh2s[id], a, SH2_STATE_VPOLL);
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sh2_poll_detect(sh2, a, SH2_STATE_VPOLL);
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goto out;
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}
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if (id == 0 && a < sizeof(Pico32xMem->sh2_rom_m))
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if (!sh2->is_slave && a < sizeof(Pico32xMem->sh2_rom_m))
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return *(u16 *)(Pico32xMem->sh2_rom_m + a);
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if (id == 1 && a < sizeof(Pico32xMem->sh2_rom_s))
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if (sh2->is_slave && a < sizeof(Pico32xMem->sh2_rom_s))
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return *(u16 *)(Pico32xMem->sh2_rom_s + a);
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if ((a & 0x3fe00) == 0x4200) {
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@ -985,165 +985,159 @@ static u32 sh2_read16_cs0(u32 a, int id)
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goto out;
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}
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return sh2_read16_unmapped(a, id);
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return sh2_read16_unmapped(a, sh2);
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out:
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elprintf(EL_32X, "%csh2 r16 [%08x] %04x @%06x",
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id ? 's' : 'm', a, d, sh2_pc(id));
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sh2->is_slave ? 's' : 'm', a, d, sh2_pc(sh2));
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return d;
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}
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static u32 sh2_read16_da(u32 a, int id)
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static u32 sh2_read16_da(u32 a, SH2 *sh2)
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{
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return ((u16 *)Pico32xMem->data_array[id])[(a & 0xfff) / 2];
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return ((u16 *)sh2->data_array)[(a & 0xfff) / 2];
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}
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static int REGPARM(3) sh2_write_ignore(u32 a, u32 d, int id)
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// writes
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static void REGPARM(3) sh2_write_ignore(u32 a, u32 d, SH2 *sh2)
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{
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return 0;
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}
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// write8
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static int REGPARM(3) sh2_write8_unmapped(u32 a, u32 d, int id)
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static void REGPARM(3) sh2_write8_unmapped(u32 a, u32 d, SH2 *sh2)
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{
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elprintf(EL_UIO, "%csh2 unmapped w8 [%08x] %02x @%06x",
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id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
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return 0;
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sh2->is_slave ? 's' : 'm', a, d & 0xff, sh2_pc(sh2));
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}
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static int REGPARM(3) sh2_write8_cs0(u32 a, u32 d, int id)
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static void REGPARM(3) sh2_write8_cs0(u32 a, u32 d, SH2 *sh2)
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{
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elprintf(EL_32X, "%csh2 w8 [%08x] %02x @%06x",
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id ? 's' : 'm', a, d & 0xff, sh2_pc(id));
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sh2->is_slave ? 's' : 'm', a, d & 0xff, sh2_pc(sh2));
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if (Pico32x.regs[0] & P32XS_FM) {
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if ((a & 0x3ff00) == 0x4100) {
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sh2s[id].poll_addr = 0;
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sh2->poll_addr = 0;
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p32x_vdp_write8(a, d);
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return 0;
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return;
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}
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}
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if ((a & 0x3ff00) == 0x4000) {
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p32x_sh2reg_write8(a, d, id);
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return 1;
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p32x_sh2reg_write8(a, d, sh2);
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return;
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}
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|
||||
return sh2_write8_unmapped(a, d, id);
|
||||
sh2_write8_unmapped(a, d, sh2);
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write8_dram0(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write8_dram0(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
sh2_write8_dramN(0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write8_dram1(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write8_dram1(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
sh2_write8_dramN(1);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write8_sdram(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write8_sdram(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
u32 a1 = a & 0x3ffff;
|
||||
#ifdef DRC_SH2
|
||||
int t = Pico32xMem->drcblk_ram[a1 >> SH2_DRCBLK_RAM_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_ram(a, t, id);
|
||||
sh2_drc_wcheck_ram(a, t, sh2->is_slave);
|
||||
#endif
|
||||
Pico32xMem->sdram[a1 ^ 1] = d;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write8_da(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write8_da(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
u32 a1 = a & 0xfff;
|
||||
#ifdef DRC_SH2
|
||||
int id = sh2->is_slave;
|
||||
int t = Pico32xMem->drcblk_da[id][a1 >> SH2_DRCBLK_DA_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_da(a, t, id);
|
||||
#endif
|
||||
Pico32xMem->data_array[id][a1 ^ 1] = d;
|
||||
return 0;
|
||||
sh2->data_array[a1 ^ 1] = d;
|
||||
}
|
||||
|
||||
// write16
|
||||
static int REGPARM(3) sh2_write16_unmapped(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write16_unmapped(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
elprintf(EL_UIO, "%csh2 unmapped w16 [%08x] %04x @%06x",
|
||||
id ? 's' : 'm', a, d & 0xffff, sh2_pc(id));
|
||||
return 0;
|
||||
sh2->is_slave ? 's' : 'm', a, d & 0xffff, sh2_pc(sh2));
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write16_cs0(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write16_cs0(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
if (((EL_LOGMASK & EL_PWM) || (a & 0x30) != 0x30)) // hide PWM
|
||||
elprintf(EL_32X, "%csh2 w16 [%08x] %04x @%06x",
|
||||
id ? 's' : 'm', a, d & 0xffff, sh2_pc(id));
|
||||
sh2->is_slave ? 's' : 'm', a, d & 0xffff, sh2_pc(sh2));
|
||||
|
||||
if (Pico32x.regs[0] & P32XS_FM) {
|
||||
if ((a & 0x3ff00) == 0x4100) {
|
||||
sh2s[id].poll_addr = 0;
|
||||
p32x_vdp_write16(a, d, &sh2s[id]);
|
||||
return 0;
|
||||
sh2->poll_addr = 0;
|
||||
p32x_vdp_write16(a, d, sh2);
|
||||
return;
|
||||
}
|
||||
|
||||
if ((a & 0x3fe00) == 0x4200) {
|
||||
Pico32xMem->pal[(a & 0x1ff) / 2] = d;
|
||||
Pico32x.dirty_pal = 1;
|
||||
return 0;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if ((a & 0x3ff00) == 0x4000) {
|
||||
p32x_sh2reg_write16(a, d, id);
|
||||
return 1;
|
||||
p32x_sh2reg_write16(a, d, sh2);
|
||||
return;
|
||||
}
|
||||
|
||||
return sh2_write16_unmapped(a, d, id);
|
||||
sh2_write16_unmapped(a, d, sh2);
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write16_dram0(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write16_dram0(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
sh2_write16_dramN(0, 0);
|
||||
sh2_write16_dramN(0);
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write16_dram1(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write16_dram1(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
sh2_write16_dramN(1, 0);
|
||||
sh2_write16_dramN(1);
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write16_sdram(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write16_sdram(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
u32 a1 = a & 0x3ffff;
|
||||
#ifdef DRC_SH2
|
||||
int t = Pico32xMem->drcblk_ram[a1 >> SH2_DRCBLK_RAM_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_ram(a, t, id);
|
||||
sh2_drc_wcheck_ram(a, t, sh2->is_slave);
|
||||
#endif
|
||||
((u16 *)Pico32xMem->sdram)[a1 / 2] = d;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int REGPARM(3) sh2_write16_da(u32 a, u32 d, int id)
|
||||
static void REGPARM(3) sh2_write16_da(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
u32 a1 = a & 0xfff;
|
||||
#ifdef DRC_SH2
|
||||
int id = sh2->is_slave;
|
||||
int t = Pico32xMem->drcblk_da[id][a1 >> SH2_DRCBLK_DA_SHIFT];
|
||||
if (t)
|
||||
sh2_drc_wcheck_da(a, t, id);
|
||||
#endif
|
||||
((u16 *)Pico32xMem->data_array[id])[a1 / 2] = d;
|
||||
return 0;
|
||||
((u16 *)sh2->data_array)[a1 / 2] = d;
|
||||
}
|
||||
|
||||
|
||||
typedef u32 (sh2_read_handler)(u32 a, int id);
|
||||
typedef int REGPARM(3) (sh2_write_handler)(u32 a, u32 d, int id);
|
||||
typedef u32 (sh2_read_handler)(u32 a, SH2 *sh2);
|
||||
typedef void REGPARM(3) (sh2_write_handler)(u32 a, u32 d, SH2 *sh2);
|
||||
|
||||
#define SH2MAP_ADDR2OFFS_R(a) \
|
||||
((((a) >> 25) & 3) | (((a) >> 27) & 0x1c))
|
||||
((u32)(a) >> SH2_READ_SHIFT)
|
||||
|
||||
#define SH2MAP_ADDR2OFFS_W(a) \
|
||||
((u32)(a) >> SH2_WRITE_SHIFT)
|
||||
|
|
@ -1156,7 +1150,7 @@ u32 REGPARM(2) p32x_sh2_read8(u32 a, SH2 *sh2)
|
|||
sh2_map += SH2MAP_ADDR2OFFS_R(a);
|
||||
p = sh2_map->addr;
|
||||
if (map_flag_set(p))
|
||||
return ((sh2_read_handler *)(p << 1))(a, sh2->is_slave);
|
||||
return ((sh2_read_handler *)(p << 1))(a, sh2);
|
||||
else
|
||||
return *(u8 *)((p << 1) + ((a & sh2_map->mask) ^ 1));
|
||||
}
|
||||
|
|
@ -1169,7 +1163,7 @@ u32 REGPARM(2) p32x_sh2_read16(u32 a, SH2 *sh2)
|
|||
sh2_map += SH2MAP_ADDR2OFFS_R(a);
|
||||
p = sh2_map->addr;
|
||||
if (map_flag_set(p))
|
||||
return ((sh2_read_handler *)(p << 1))(a, sh2->is_slave);
|
||||
return ((sh2_read_handler *)(p << 1))(a, sh2);
|
||||
else
|
||||
return *(u16 *)((p << 1) + ((a & sh2_map->mask) & ~1));
|
||||
}
|
||||
|
|
@ -1191,48 +1185,46 @@ u32 REGPARM(2) p32x_sh2_read32(u32 a, SH2 *sh2)
|
|||
}
|
||||
|
||||
if (offs == 0x1f)
|
||||
return sh2_peripheral_read32(a, sh2->is_slave);
|
||||
return sh2_peripheral_read32(a, sh2);
|
||||
|
||||
handler = (sh2_read_handler *)(p << 1);
|
||||
return (handler(a, sh2->is_slave) << 16) | handler(a + 2, sh2->is_slave);
|
||||
return (handler(a, sh2) << 16) | handler(a + 2, sh2);
|
||||
}
|
||||
|
||||
// return nonzero if write potentially causes an interrupt (used by drc)
|
||||
int REGPARM(3) p32x_sh2_write8(u32 a, u32 d, SH2 *sh2)
|
||||
void REGPARM(3) p32x_sh2_write8(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
const void **sh2_wmap = sh2->write8_tab;
|
||||
sh2_write_handler *wh;
|
||||
|
||||
wh = sh2_wmap[SH2MAP_ADDR2OFFS_W(a)];
|
||||
return wh(a, d, sh2->is_slave);
|
||||
wh(a, d, sh2);
|
||||
}
|
||||
|
||||
int REGPARM(3) p32x_sh2_write16(u32 a, u32 d, SH2 *sh2)
|
||||
void REGPARM(3) p32x_sh2_write16(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
const void **sh2_wmap = sh2->write16_tab;
|
||||
sh2_write_handler *wh;
|
||||
|
||||
wh = sh2_wmap[SH2MAP_ADDR2OFFS_W(a)];
|
||||
return wh(a, d, sh2->is_slave);
|
||||
wh(a, d, sh2);
|
||||
}
|
||||
|
||||
int REGPARM(3) p32x_sh2_write32(u32 a, u32 d, SH2 *sh2)
|
||||
void REGPARM(3) p32x_sh2_write32(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
const void **sh2_wmap = sh2->write16_tab;
|
||||
sh2_write_handler *handler;
|
||||
sh2_write_handler *wh;
|
||||
u32 offs;
|
||||
|
||||
offs = SH2MAP_ADDR2OFFS_W(a);
|
||||
|
||||
if (offs == SH2MAP_ADDR2OFFS_W(0xffffc000)) {
|
||||
sh2_peripheral_write32(a, d, sh2->is_slave);
|
||||
return 0;
|
||||
sh2_peripheral_write32(a, d, sh2);
|
||||
return;
|
||||
}
|
||||
|
||||
handler = sh2_wmap[offs];
|
||||
handler(a, d >> 16, sh2->is_slave);
|
||||
handler(a + 2, d, sh2->is_slave);
|
||||
return 0;
|
||||
wh = sh2_wmap[offs];
|
||||
wh(a, d >> 16, sh2);
|
||||
wh(a + 2, d, sh2);
|
||||
}
|
||||
|
||||
// -----------------------------------------------------------------
|
||||
|
|
@ -1359,7 +1351,7 @@ static void get_bios(void)
|
|||
#define MAP_MEMORY(m) ((uptr)(m) >> 1)
|
||||
#define MAP_HANDLER(h) ( ((uptr)(h) >> 1) | ((uptr)1 << (sizeof(uptr) * 8 - 1)) )
|
||||
|
||||
static sh2_memmap sh2_read8_map[0x20], sh2_read16_map[0x20];
|
||||
static sh2_memmap sh2_read8_map[0x80], sh2_read16_map[0x80];
|
||||
// for writes we are using handlers only
|
||||
static sh2_write_handler *sh2_write8_map[0x80], *sh2_write16_map[0x80];
|
||||
|
||||
|
|
@ -1375,8 +1367,8 @@ void Pico32xSwapDRAM(int b)
|
|||
b ? m68k_write16_dram1_ow : m68k_write16_dram0_ow, 1);
|
||||
|
||||
// SH2
|
||||
sh2_read8_map[2].addr = sh2_read8_map[6].addr =
|
||||
sh2_read16_map[2].addr = sh2_read16_map[6].addr = MAP_MEMORY(Pico32xMem->dram[b]);
|
||||
sh2_read8_map[0x04/2].addr = sh2_read8_map[0x24/2].addr =
|
||||
sh2_read16_map[0x04/2].addr = sh2_read16_map[0x24/2].addr = MAP_MEMORY(Pico32xMem->dram[b]);
|
||||
|
||||
sh2_write8_map[0x04/2] = sh2_write8_map[0x24/2] = b ? sh2_write8_dram1 : sh2_write8_dram0;
|
||||
sh2_write16_map[0x04/2] = sh2_write16_map[0x24/2] = b ? sh2_write16_dram1 : sh2_write16_dram0;
|
||||
|
|
@ -1448,35 +1440,35 @@ void PicoMemSetup32x(void)
|
|||
}
|
||||
|
||||
// CS0
|
||||
sh2_read8_map[0].addr = sh2_read8_map[4].addr = MAP_HANDLER(sh2_read8_cs0);
|
||||
sh2_read16_map[0].addr = sh2_read16_map[4].addr = MAP_HANDLER(sh2_read16_cs0);
|
||||
sh2_read8_map[0x00/2].addr = sh2_read8_map[0x20/2].addr = MAP_HANDLER(sh2_read8_cs0);
|
||||
sh2_read16_map[0x00/2].addr = sh2_read16_map[0x20/2].addr = MAP_HANDLER(sh2_read16_cs0);
|
||||
sh2_write8_map[0x00/2] = sh2_write8_map[0x20/2] = sh2_write8_cs0;
|
||||
sh2_write16_map[0x00/2] = sh2_write16_map[0x20/2] = sh2_write16_cs0;
|
||||
// CS1 - ROM
|
||||
sh2_read8_map[1].addr = sh2_read8_map[5].addr =
|
||||
sh2_read16_map[1].addr = sh2_read16_map[5].addr = MAP_MEMORY(Pico.rom);
|
||||
sh2_read8_map[1].mask = sh2_read8_map[5].mask =
|
||||
sh2_read16_map[1].mask = sh2_read16_map[5].mask = 0x3fffff; // FIXME
|
||||
sh2_read8_map[0x02/2].addr = sh2_read8_map[0x22/2].addr =
|
||||
sh2_read16_map[0x02/2].addr = sh2_read16_map[0x22/2].addr = MAP_MEMORY(Pico.rom);
|
||||
sh2_read8_map[0x02/2].mask = sh2_read8_map[0x22/2].mask =
|
||||
sh2_read16_map[0x02/2].mask = sh2_read16_map[0x22/2].mask = 0x3fffff; // FIXME
|
||||
// CS2 - DRAM - done by Pico32xSwapDRAM()
|
||||
sh2_read8_map[2].mask = sh2_read8_map[6].mask =
|
||||
sh2_read16_map[2].mask = sh2_read16_map[6].mask = 0x01ffff;
|
||||
sh2_read8_map[0x04/2].mask = sh2_read8_map[0x24/2].mask =
|
||||
sh2_read16_map[0x04/2].mask = sh2_read16_map[0x24/2].mask = 0x01ffff;
|
||||
// CS3 - SDRAM
|
||||
sh2_read8_map[3].addr = sh2_read8_map[7].addr =
|
||||
sh2_read16_map[3].addr = sh2_read16_map[7].addr = MAP_MEMORY(Pico32xMem->sdram);
|
||||
sh2_write8_map[0x06/2] = sh2_write8_map[0x26/2] = sh2_write8_sdram;
|
||||
sh2_write16_map[0x06/2] = sh2_write16_map[0x26/2] = sh2_write16_sdram;
|
||||
sh2_read8_map[3].mask = sh2_read8_map[7].mask =
|
||||
sh2_read16_map[3].mask = sh2_read16_map[7].mask = 0x03ffff;
|
||||
sh2_read8_map[0x06/2].addr = sh2_read8_map[0x26/2].addr =
|
||||
sh2_read16_map[0x06/2].addr = sh2_read16_map[0x26/2].addr = MAP_MEMORY(Pico32xMem->sdram);
|
||||
sh2_write8_map[0x06/2] = sh2_write8_map[0x26/2] = sh2_write8_sdram;
|
||||
sh2_write16_map[0x06/2] = sh2_write16_map[0x26/2] = sh2_write16_sdram;
|
||||
sh2_read8_map[0x06/2].mask = sh2_read8_map[0x26/2].mask =
|
||||
sh2_read16_map[0x06/2].mask = sh2_read16_map[0x26/2].mask = 0x03ffff;
|
||||
// SH2 data array
|
||||
sh2_read8_map[0x18].addr = MAP_HANDLER(sh2_read8_da);
|
||||
sh2_read16_map[0x18].addr = MAP_HANDLER(sh2_read16_da);
|
||||
sh2_write8_map[0xc0/2] = sh2_write8_da;
|
||||
sh2_write16_map[0xc0/2] = sh2_write16_da;
|
||||
sh2_read8_map[0xc0/2].addr = MAP_HANDLER(sh2_read8_da);
|
||||
sh2_read16_map[0xc0/2].addr = MAP_HANDLER(sh2_read16_da);
|
||||
sh2_write8_map[0xc0/2] = sh2_write8_da;
|
||||
sh2_write16_map[0xc0/2] = sh2_write16_da;
|
||||
// SH2 IO
|
||||
sh2_read8_map[0x1f].addr = MAP_HANDLER(sh2_peripheral_read8);
|
||||
sh2_read16_map[0x1f].addr = MAP_HANDLER(sh2_peripheral_read16);
|
||||
sh2_write8_map[0xff/2] = sh2_peripheral_write8;
|
||||
sh2_write16_map[0xff/2] = sh2_peripheral_write16;
|
||||
sh2_read8_map[0xff/2].addr = MAP_HANDLER(sh2_peripheral_read8);
|
||||
sh2_read16_map[0xff/2].addr = MAP_HANDLER(sh2_peripheral_read16);
|
||||
sh2_write8_map[0xff/2] = sh2_peripheral_write8;
|
||||
sh2_write16_map[0xff/2] = sh2_peripheral_write16;
|
||||
|
||||
// map DRAM area, both 68k and SH2
|
||||
Pico32xSwapDRAM(1);
|
||||
|
|
|
|||
|
|
@ -59,7 +59,7 @@ struct dmac {
|
|||
|
||||
static void dmac_te_irq(SH2 *sh2, struct dma_chan *chan)
|
||||
{
|
||||
char *regs = (void *)Pico32xMem->sh2_peri_regs[sh2->is_slave];
|
||||
char *regs = (void *)sh2->peri_regs;
|
||||
struct dmac *dmac = (void *)(regs + 0x180);
|
||||
int level = PREG8(regs, 0xe2) & 0x0f; // IPRA
|
||||
int vector = (chan == &dmac->chan[0]) ?
|
||||
|
|
@ -167,7 +167,7 @@ void p32x_timers_recalc(void)
|
|||
|
||||
// SH2 timer step
|
||||
for (i = 0; i < 2; i++) {
|
||||
tmp = PREG8(Pico32xMem->sh2_peri_regs[i], 0x80) & 7;
|
||||
tmp = PREG8(sh2s[i].peri_regs, 0x80) & 7;
|
||||
// Sclk cycles per timer tick
|
||||
if (tmp)
|
||||
cycles = 0x20 << tmp;
|
||||
|
|
@ -186,7 +186,7 @@ void p32x_timers_do(unsigned int m68k_slice)
|
|||
|
||||
// WDT timers
|
||||
for (i = 0; i < 2; i++) {
|
||||
void *pregs = Pico32xMem->sh2_peri_regs[i];
|
||||
void *pregs = sh2s[i].peri_regs;
|
||||
if (PREG8(pregs, 0x80) & 0x20) { // TME
|
||||
timer_cycles[i] += cycles;
|
||||
cnt = PREG8(pregs, 0x81);
|
||||
|
|
@ -211,44 +211,48 @@ void p32x_timers_do(unsigned int m68k_slice)
|
|||
// SH2 internal peripheral memhandlers
|
||||
// we keep them in little endian format
|
||||
|
||||
u32 sh2_peripheral_read8(u32 a, int id)
|
||||
u32 sh2_peripheral_read8(u32 a, SH2 *sh2)
|
||||
{
|
||||
u8 *r = (void *)Pico32xMem->sh2_peri_regs[id];
|
||||
u8 *r = (void *)sh2->peri_regs;
|
||||
u32 d;
|
||||
|
||||
a &= 0x1ff;
|
||||
d = PREG8(r, a);
|
||||
|
||||
elprintf(EL_32XP, "%csh2 peri r8 [%08x] %02x @%06x", id ? 's' : 'm', a | ~0x1ff, d, sh2_pc(id));
|
||||
elprintf(EL_32XP, "%csh2 peri r8 [%08x] %02x @%06x",
|
||||
sh2->is_slave ? 's' : 'm', a | ~0x1ff, d, sh2_pc(sh2));
|
||||
return d;
|
||||
}
|
||||
|
||||
u32 sh2_peripheral_read16(u32 a, int id)
|
||||
u32 sh2_peripheral_read16(u32 a, SH2 *sh2)
|
||||
{
|
||||
u16 *r = (void *)Pico32xMem->sh2_peri_regs[id];
|
||||
u16 *r = (void *)sh2->peri_regs;
|
||||
u32 d;
|
||||
|
||||
a &= 0x1ff;
|
||||
d = r[(a / 2) ^ 1];
|
||||
|
||||
elprintf(EL_32XP, "%csh2 peri r16 [%08x] %04x @%06x", id ? 's' : 'm', a | ~0x1ff, d, sh2_pc(id));
|
||||
elprintf(EL_32XP, "%csh2 peri r16 [%08x] %04x @%06x",
|
||||
sh2->is_slave ? 's' : 'm', a | ~0x1ff, d, sh2_pc(sh2));
|
||||
return d;
|
||||
}
|
||||
|
||||
u32 sh2_peripheral_read32(u32 a, int id)
|
||||
u32 sh2_peripheral_read32(u32 a, SH2 *sh2)
|
||||
{
|
||||
u32 d;
|
||||
a &= 0x1fc;
|
||||
d = Pico32xMem->sh2_peri_regs[id][a / 4];
|
||||
d = sh2->peri_regs[a / 4];
|
||||
|
||||
elprintf(EL_32XP, "%csh2 peri r32 [%08x] %08x @%06x", id ? 's' : 'm', a | ~0x1ff, d, sh2_pc(id));
|
||||
elprintf(EL_32XP, "%csh2 peri r32 [%08x] %08x @%06x",
|
||||
sh2->is_slave ? 's' : 'm', a | ~0x1ff, d, sh2_pc(sh2));
|
||||
return d;
|
||||
}
|
||||
|
||||
int REGPARM(3) sh2_peripheral_write8(u32 a, u32 d, int id)
|
||||
void REGPARM(3) sh2_peripheral_write8(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
u8 *r = (void *)Pico32xMem->sh2_peri_regs[id];
|
||||
elprintf(EL_32XP, "%csh2 peri w8 [%08x] %02x @%06x", id ? 's' : 'm', a, d, sh2_pc(id));
|
||||
u8 *r = (void *)sh2->peri_regs;
|
||||
elprintf(EL_32XP, "%csh2 peri w8 [%08x] %02x @%06x",
|
||||
sh2->is_slave ? 's' : 'm', a, d, sh2_pc(sh2));
|
||||
|
||||
a &= 0x1ff;
|
||||
PREG8(r, a) = d;
|
||||
|
|
@ -256,22 +260,23 @@ int REGPARM(3) sh2_peripheral_write8(u32 a, u32 d, int id)
|
|||
// X-men SCI hack
|
||||
if ((a == 2 && (d & 0x20)) || // transmiter enabled
|
||||
(a == 4 && !(d & 0x80))) { // valid data in TDR
|
||||
void *oregs = Pico32xMem->sh2_peri_regs[id ^ 1];
|
||||
void *oregs = sh2->other_sh2->peri_regs;
|
||||
if ((PREG8(oregs, 2) & 0x50) == 0x50) { // receiver + irq enabled
|
||||
int level = PREG8(oregs, 0x60) >> 4;
|
||||
int vector = PREG8(oregs, 0x63) & 0x7f;
|
||||
elprintf(EL_32XP, "%csh2 SCI recv irq (%d, %d)", (id ^ 1) ? 's' : 'm', level, vector);
|
||||
sh2_internal_irq(&sh2s[id ^ 1], level, vector);
|
||||
return 1;
|
||||
elprintf(EL_32XP, "%csh2 SCI recv irq (%d, %d)",
|
||||
(sh2->is_slave ^ 1) ? 's' : 'm', level, vector);
|
||||
sh2_internal_irq(sh2->other_sh2, level, vector);
|
||||
return;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int REGPARM(3) sh2_peripheral_write16(u32 a, u32 d, int id)
|
||||
void REGPARM(3) sh2_peripheral_write16(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
u16 *r = (void *)Pico32xMem->sh2_peri_regs[id];
|
||||
elprintf(EL_32XP, "%csh2 peri w16 [%08x] %04x @%06x", id ? 's' : 'm', a, d, sh2_pc(id));
|
||||
u16 *r = (void *)sh2->peri_regs;
|
||||
elprintf(EL_32XP, "%csh2 peri w16 [%08x] %04x @%06x",
|
||||
sh2->is_slave ? 's' : 'm', a, d, sh2_pc(sh2));
|
||||
|
||||
a &= 0x1ff;
|
||||
|
||||
|
|
@ -283,17 +288,17 @@ int REGPARM(3) sh2_peripheral_write16(u32 a, u32 d, int id)
|
|||
}
|
||||
if ((d & 0xff00) == 0x5a00) // WTCNT
|
||||
PREG8(r, 0x81) = d;
|
||||
return 0;
|
||||
return;
|
||||
}
|
||||
|
||||
r[(a / 2) ^ 1] = d;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void sh2_peripheral_write32(u32 a, u32 d, int id)
|
||||
void sh2_peripheral_write32(u32 a, u32 d, SH2 *sh2)
|
||||
{
|
||||
u32 *r = Pico32xMem->sh2_peri_regs[id];
|
||||
elprintf(EL_32XP, "%csh2 peri w32 [%08x] %08x @%06x", id ? 's' : 'm', a, d, sh2_pc(id));
|
||||
u32 *r = sh2->peri_regs;
|
||||
elprintf(EL_32XP, "%csh2 peri w32 [%08x] %08x @%06x",
|
||||
sh2->is_slave ? 's' : 'm', a, d, sh2_pc(sh2));
|
||||
|
||||
a &= 0x1fc;
|
||||
r[a / 4] = d;
|
||||
|
|
@ -301,7 +306,8 @@ void sh2_peripheral_write32(u32 a, u32 d, int id)
|
|||
switch (a) {
|
||||
// division unit (TODO: verify):
|
||||
case 0x104: // DVDNT: divident L, starts divide
|
||||
elprintf(EL_32XP, "%csh2 divide %08x / %08x", id ? 's' : 'm', d, r[0x100 / 4]);
|
||||
elprintf(EL_32XP, "%csh2 divide %08x / %08x",
|
||||
sh2->is_slave ? 's' : 'm', d, r[0x100 / 4]);
|
||||
if (r[0x100 / 4]) {
|
||||
signed int divisor = r[0x100 / 4];
|
||||
r[0x118 / 4] = r[0x110 / 4] = (signed int)d % divisor;
|
||||
|
|
@ -312,7 +318,7 @@ void sh2_peripheral_write32(u32 a, u32 d, int id)
|
|||
break;
|
||||
case 0x114:
|
||||
elprintf(EL_32XP, "%csh2 divide %08x%08x / %08x @%08x",
|
||||
id ? 's' : 'm', r[0x110 / 4], d, r[0x100 / 4], sh2_pc(id));
|
||||
sh2->is_slave ? 's' : 'm', r[0x110 / 4], d, r[0x100 / 4], sh2_pc(sh2));
|
||||
if (r[0x100 / 4]) {
|
||||
signed long long divident = (signed long long)r[0x110 / 4] << 32 | d;
|
||||
signed int divisor = r[0x100 / 4];
|
||||
|
|
@ -322,7 +328,8 @@ void sh2_peripheral_write32(u32 a, u32 d, int id)
|
|||
r[0x11c / 4] = r[0x114 / 4] = divident;
|
||||
divident >>= 31;
|
||||
if ((unsigned long long)divident + 1 > 1) {
|
||||
//elprintf(EL_32XP, "%csh2 divide overflow! @%08x", id ? 's' : 'm', sh2_pc(id));
|
||||
//elprintf(EL_32XP, "%csh2 divide overflow! @%08x",
|
||||
// sh2->is_slave ? 's' : 'm', sh2_pc(sh2));
|
||||
r[0x11c / 4] = r[0x114 / 4] = divident > 0 ? 0x7fffffff : 0x80000000; // overflow
|
||||
}
|
||||
}
|
||||
|
|
@ -333,14 +340,14 @@ void sh2_peripheral_write32(u32 a, u32 d, int id)
|
|||
|
||||
// perhaps starting a DMA?
|
||||
if (a == 0x1b0 || a == 0x18c || a == 0x19c) {
|
||||
struct dmac *dmac = (void *)&Pico32xMem->sh2_peri_regs[id][0x180 / 4];
|
||||
struct dmac *dmac = (void *)&sh2->peri_regs[0x180 / 4];
|
||||
if (!(dmac->dmaor & DMA_DME))
|
||||
return;
|
||||
|
||||
if ((dmac->chan[0].chcr & (DMA_TE|DMA_DE)) == DMA_DE)
|
||||
dmac_trigger(&sh2s[id], &dmac->chan[0]);
|
||||
dmac_trigger(sh2, &dmac->chan[0]);
|
||||
if ((dmac->chan[1].chcr & (DMA_TE|DMA_DE)) == DMA_DE)
|
||||
dmac_trigger(&sh2s[id], &dmac->chan[1]);
|
||||
dmac_trigger(sh2, &dmac->chan[1]);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -401,8 +408,8 @@ static void dreq1_do(SH2 *sh2, struct dma_chan *chan)
|
|||
|
||||
void p32x_dreq0_trigger(void)
|
||||
{
|
||||
struct dmac *mdmac = (void *)&Pico32xMem->sh2_peri_regs[0][0x180 / 4];
|
||||
struct dmac *sdmac = (void *)&Pico32xMem->sh2_peri_regs[1][0x180 / 4];
|
||||
struct dmac *mdmac = (void *)&msh2.peri_regs[0x180 / 4];
|
||||
struct dmac *sdmac = (void *)&ssh2.peri_regs[0x180 / 4];
|
||||
|
||||
elprintf(EL_32XP, "dreq0_trigger");
|
||||
if ((mdmac->dmaor & DMA_DME) && (mdmac->chan[0].chcr & 3) == DMA_DE) {
|
||||
|
|
@ -415,8 +422,8 @@ void p32x_dreq0_trigger(void)
|
|||
|
||||
void p32x_dreq1_trigger(void)
|
||||
{
|
||||
struct dmac *mdmac = (void *)&Pico32xMem->sh2_peri_regs[0][0x180 / 4];
|
||||
struct dmac *sdmac = (void *)&Pico32xMem->sh2_peri_regs[1][0x180 / 4];
|
||||
struct dmac *mdmac = (void *)&msh2.peri_regs[0x180 / 4];
|
||||
struct dmac *sdmac = (void *)&ssh2.peri_regs[0x180 / 4];
|
||||
int hit = 0;
|
||||
|
||||
elprintf(EL_32XP, "dreq1_trigger");
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue