jgz80: fix inir/indr mem_ptr value when b != 0

rofl0r · carmiker · commit 4f1e2f7bf209 · 2023-02-26T13:22:14.000-05:00
diff --git a/z80.c b/z80.c
@@ -2133,6 +2133,7 @@ static unsigned exec_opcode_ed(z80* const z, uint8_t opcode) {
     if (z->b > 0) {
       z->pc -= 2;
       cyc += 5;
+      z->mem_ptr = z->pc + 1;
     }
     break; // inir
   case 0xAA: cyc += 16; ind(z); break; // ind
@@ -2142,6 +2143,7 @@ static unsigned exec_opcode_ed(z80* const z, uint8_t opcode) {
     if (z->b > 0) {
       z->pc -= 2;
       cyc += 5;
+      z->mem_ptr = z->pc + 1;
     }
     break; // indr
 

Original file line number	Diff line number	Diff line change
`@@ -2133,6 +2133,7 @@ static unsigned exec_opcode_ed(z80* const z, uint8_t opcode) {`
`2133`	`2133`	`if (z->b > 0) {`
`2134`	`2134`	`z->pc -= 2;`
`2135`	`2135`	`cyc += 5;`
	`2136`	`+ z->mem_ptr = z->pc + 1;`
`2136`	`2137`	`}`
`2137`	`2138`	`break; // inir`
`2138`	`2139`	`case 0xAA: cyc += 16; ind(z); break; // ind`
`@@ -2142,6 +2143,7 @@ static unsigned exec_opcode_ed(z80* const z, uint8_t opcode) {`
`2142`	`2143`	`if (z->b > 0) {`
`2143`	`2144`	`z->pc -= 2;`
`2144`	`2145`	`cyc += 5;`
	`2146`	`+ z->mem_ptr = z->pc + 1;`
`2145`	`2147`	`}`
`2146`	`2148`	`break; // indr`
`2147`	`2149`