#3548 Error in gsinit of gbz80's crt0

[Daniel Drotos]

In file device/lib/sm83/crt0.s there is use of uninitialized HL register:

gsinit::
        ; Default-initialized global variables.
        ld      de, #s__DATA
        ld      bc, #l__DATA + 0x0101
        xor     a, a
        jr      loop_implicit_compare
loop_implicit:
        ld      (hl+), a
loop_implicit_compare:
        dec     c
        jr      NZ, loop_implicit
        dec     b
        jr      NZ, loop_implicit

In simulator, HL is 0 so this code tries to fill address 0... with zero, so memory area of DATA is still uninitialized.

Daniel

[Philipp Klaus Krause]

Fixed in [r13857].