X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2FMemory.s;h=dbe76ac52e2c845f47a8848271c2b9f2ee7977fd;hb=4b9c58882616c5205a5ad5c9350f20a3d22bd7e1;hp=732e6b852ebcea4259ae6a906fb606e62c95a9b4;hpb=3ec29f016cdeb3100dbb433dd9041e81542765bd;p=picodrive.git diff --git a/Pico/Memory.s b/Pico/Memory.s index 732e6b8..dbe76ac 100644 --- a/Pico/Memory.s +++ b/Pico/Memory.s @@ -386,17 +386,14 @@ m_read8_misc2: cmp r2, #0x4000 mvnne r0, #0 bxne lr @ invalid -.if EXTERNAL_YM2612 ldr r1, =PicoOpt ldr r1, [r1] tst r1, #1 - beq m_read8_fake_ym2612 - tst r1, #0x200 - beq YM2612Read_ - b YM2612Read_940 -.else - b YM2612Read_ -.endif + + ldrne r1, =ym2612_st + ldrne r1, [r1] + ldrneb r0, [r1, #0x11] @ ym2612_st->status + bxne lr m_read8_fake_ym2612: ldr r3, =(Pico+0x22200) @@ -451,10 +448,13 @@ m_read8_above_rom: tst r1, #5 bne SRAMRead m_read8_ar_nosram: + ldr r2, =PicoRead16Hook stmfd sp!,{r0,lr} + ldr r2, [r2] bic r0, r0, #1 mov r1, #8 - bl OtherRead16End + mov lr, pc + bx r2 ldmfd sp!,{r1,lr} tst r1, #1 moveq r0, r0, lsr #8 @@ -505,8 +505,7 @@ m_read16_rom4: @ 0x200000 - 0x27ffff, SRAM area (NBA Live 95) tst r1, #5 beq m_read16_nosram stmfd sp!,{lr} - bl SRAMRead - orr r0, r0, r0, lsl #8 + bl SRAMRead16 ldmfd sp!,{pc} m_read16_nosram: ldr r1, [r3, #4] @ romsize @@ -596,12 +595,13 @@ m_read16_above_rom: tst r1, #5 beq m_read16_ar_nosram stmfd sp!,{lr} - bl SRAMRead - orr r0, r0, r0, lsl #8 + bl SRAMRead16 ldmfd sp!,{pc} m_read16_ar_nosram: + ldr r2, =PicoRead16Hook + ldr r2, [r2] mov r1, #16 - b OtherRead16End + bx r2 .pool @@ -650,14 +650,13 @@ m_read32_rom4: @ 0x200000 - 0x27ffff, SRAM area (does any game do long reads?) tst r1, #5 beq m_read32_nosram stmfd sp!,{r0,lr} - bl SRAMRead + bl SRAMRead16 ldmfd sp!,{r1,lr} stmfd sp!,{r0,lr} add r0, r1, #2 - bl SRAMRead + bl SRAMRead16 ldmfd sp!,{r1,lr} orr r0, r0, r1, lsl #16 - orr r0, r0, r0, lsl #8 bx lr m_read32_nosram: ldr r1, [r3, #4] @ romsize @@ -754,16 +753,20 @@ m_read32_ram: bx lr m_read32_above_rom: + ldr r2, =PicoRead16Hook bic r0, r0, #1 - stmfd sp!,{r0,lr} + ldr r2, [r2] mov r1, #32 - bl OtherRead16End + stmfd sp!,{r0,r2,lr} + mov lr, pc + bx r2 mov r1, r0 - ldmfd sp!,{r0} + ldmfd sp!,{r0,r2} stmfd sp!,{r1} add r0, r0, #2 mov r1, #32 - bl OtherRead16End + mov lr, pc + bx r2 ldmfd sp!,{r1,lr} orr r0, r0, r1, lsl #16 bx lr @@ -876,27 +879,21 @@ m_write8_z80_not_ram: and r2, r0, #0x6000 cmp r2, #0x4000 bne m_write8_z80_not_ym2612 - ldr r2, =PicoOpt + ldr r3, =PicoOpt and r0, r0, #3 - ldr r2, [r2] - tst r2, #1 + ldr r3, [r3] + mov r2, #0 @ is_from_z80 = 0 + tst r3, #1 bxeq lr stmfd sp!,{lr} -.if EXTERNAL_YM2612 - tst r2, #0x200 - ldreq r2, =YM2612Write_ - ldrne r2, =YM2612Write_940 - mov lr, pc - bx r2 -.else - bl YM2612Write_ -.endif + and r1, r1, #0xff + bl ym2612_write_local ldr r2, =emustatus ldmfd sp!,{lr} ldr r1, [r2] and r0, r0, #1 orr r1, r0, r1 - str r1, [r2] @ emustatus|=YM2612Write(a&3, d); + str r1, [r2] @ emustatus|=ym2612_write_local(a&3, d); bx lr m_write8_z80_not_ym2612: @ not too likely @@ -913,7 +910,7 @@ m_write8_z80_not_ym2612: @ not too likely m_write8_z80_bank_reg: ldr r3, =(Pico+0x22208) @ Pico.m ldrh r2, [r3, #0x0a] - mov r1, r1, lsr #8 + mov r1, r1, lsl #8 orr r2, r1, r2, lsr #1 bic r2, r2, #0xfe00 strh r2, [r3, #0x0a] @@ -929,7 +926,7 @@ m_write8_not_z80: bne OtherWrite8 m_write8_psg: ldr r2, =PicoOpt - mov r0, r1 + and r0, r1, #0xff ldr r2, [r2] tst r2, #2 bxeq lr