Update the stub boot rom to "enable" the 16bit cart access mode.

(the emulator do not care about that but it is just to be more accurate)
2021-04-09 23:08:29 +01:00 · 2021-04-09 23:08:29 +01:00 · dd53d5bfd9
commit dd53d5bfd9
parent 5ba3560378
4 changed files with 6 additions and 0 deletions
--- a/irom_stub/irom_stub.asm
+++ b/irom_stub/irom_stub.asm
@ -52,6 +52,12 @@ _start:
    cld
    push cs
    pop ds
+
+    in al, 0A0h
+    ; Bit 2 - 1 = cart using 16bit data bus
+    or al, 004h
+    out 0A0h, al
+
    xor ax, ax
    mov es, ax

--- a/irom_stub/wc_irom.bin
+++ b/irom_stub/wc_irom.bin
--- a/irom_stub/ws_irom.bin
+++ b/irom_stub/ws_irom.bin
--- a/irom_stub/wsc_irom.bin
+++ b/irom_stub/wsc_irom.bin