From: Rune Holm <rune.holm@gmail.com>
Date: Sun, 20 Jun 2021 16:22:03 +0000 (+0200)
Subject: introducing CPU state parameter
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=14636790c638a4c24fd31054b35228a9138e98a9;p=pistorm

introducing CPU state parameter
---

diff --git a/emulator.c b/emulator.c
index 8bf7855..8ecc8f8 100644
--- a/emulator.c
+++ b/emulator.c
@@ -181,7 +181,8 @@ void *ipl_task(void *args) {
 }
 
 void *cpu_task() {
-  m68k_pulse_reset();
+	m68ki_cpu_core *state = &m68ki_cpu;
+	m68k_pulse_reset(state);
 
 cpu_loop:
   if (mouse_hook_enabled) {
@@ -197,14 +198,14 @@ cpu_loop:
     printf("%.8X (%.8X)]] %s\n", m68k_get_reg(NULL, M68K_REG_PC), (m68k_get_reg(NULL, M68K_REG_PC) & 0xFFFFFF), disasm_buf);
     if (do_disasm)
       do_disasm--;
-    m68k_execute(1);
+	  m68k_execute(state, 1);
   }
   else {
     if (cpu_emulation_running) {
-      if (irq)
-        m68k_execute(5);
-      else
-        m68k_execute(loop_cycles);
+		if (irq)
+			m68k_execute(state, 5);
+		else
+			m68k_execute(state, loop_cycles);
     }
   }
 
@@ -626,6 +627,7 @@ switch_config:
 }
 
 void cpu_pulse_reset(void) {
+	m68ki_cpu_core *state = &m68ki_cpu;
   ps_pulse_reset();
   if (cfg->platform->handle_reset)
     cfg->platform->handle_reset(cfg);
@@ -635,7 +637,7 @@ void cpu_pulse_reset(void) {
   //m68k_write_memory_8(0xbfe201, 0x0001);  // AMIGA OVL
   //m68k_write_memory_8(0xbfe001, 0x0001);  // AMIGA OVL high (ROM@0x0)
 
-  m68k_pulse_reset();
+	m68k_pulse_reset(state);
 }
 
 int cpu_irq_ack(int level) {
diff --git a/m68k.h b/m68k.h
index ca91b14..bb8e686 100644
--- a/m68k.h
+++ b/m68k.h
@@ -52,6 +52,7 @@ extern "C" {
 #include MUSASHI_CNF
 #else
 #include "m68kconf.h"
+
 #endif
 
 /* ======================================================================== */
@@ -93,6 +94,7 @@ extern "C" {
  */
 #define M68K_INT_ACK_SPURIOUS      0xfffffffe
 
+struct m68ki_cpu_core;
 
 /* CPU types for use in m68k_set_cpu_type() */
 enum
@@ -327,10 +329,10 @@ void m68k_init(void);
  *       the CPU for the first time, the CPU will be set to
  *       M68K_CPU_TYPE_68000.
  */
-void m68k_pulse_reset(void);
+void m68k_pulse_reset(struct m68ki_cpu_core *state);
 
 /* execute num_cycles worth of instructions.  returns number of cycles used */
-int m68k_execute(int num_cycles);
+int m68k_execute(struct m68ki_cpu_core *state, int num_cycles);
 
 /* These functions let you read/write/modify the number of cycles left to run
  * while m68k_execute() is running.
diff --git a/m68k_in.c b/m68k_in.c
index cb5190e..9b400a0 100644
--- a/m68k_in.c
+++ b/m68k_in.c
@@ -7040,7 +7040,7 @@ M68KMAKE_OP(movec, 32, rc, .)
 					}
 
 					if (REG_CACR & (M68K_CACR_CI | M68K_CACR_CEI)) {
-						m68ki_ic_clear();
+						m68ki_ic_clear(state);
 					}
 					return;
 				}
diff --git a/m68kcpu.c b/m68kcpu.c
index fb66609..d30ad93 100644
--- a/m68kcpu.c
+++ b/m68kcpu.c
@@ -958,7 +958,7 @@ uint m68k_get_address_mask() {
 
 /* Execute some instructions until we use up num_cycles clock cycles */
 /* ASG: removed per-instruction interrupt checks */
-int m68k_execute(int num_cycles)
+int m68k_execute(m68ki_cpu_core *state, int num_cycles)
 {
 	/* eat up any reset cycles */
 	if (RESET_CYCLES) {
@@ -1121,7 +1121,7 @@ void m68k_pulse_bus_error(void)
 }
 
 /* Pulse the RESET line on the CPU */
-void m68k_pulse_reset(void)
+void m68k_pulse_reset(m68ki_cpu_core *state)
 {
 	/* Disable the PMMU/HMMU on reset, if any */
 	m68ki_cpu.pmmu_enabled = 0;
@@ -1172,7 +1172,7 @@ void m68k_pulse_reset(void)
 	if(CPU_TYPE_IS_EC020_PLUS(CPU_TYPE))
 	{
 		// clear instruction cache
-		m68ki_ic_clear();
+		m68ki_ic_clear(state);
 	}
 }
 
diff --git a/m68kcpu.h b/m68kcpu.h
index e93c3d4..cd4d07e 100644
--- a/m68kcpu.h
+++ b/m68kcpu.h
@@ -1099,7 +1099,7 @@ char* m68ki_disassemble_quick(unsigned int pc, unsigned int cpu_type);
 /* ---------------------------- Read Immediate ---------------------------- */
 
 // clear the instruction cache
-inline void m68ki_ic_clear()
+inline void m68ki_ic_clear(m68ki_cpu_core *state)
 {
 	int i;
 	for (i=0; i< M68K_IC_SIZE; i++) {